Beamex MC2 PE, MC2 TE, MC2 MF calibrator User Guide

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SERIES CALIBRATORS
User Guide
Dear user,
We have made every effort to ensure the accuracy of the contents of this
manual. Should any errors be detected, we would greatly appreciate to
receive suggestions to improve the quality of the contents of this manual.
The above not withstanding, we can assume no responsibility for any errors
in this manual or their eventual consequences.
We reserve rights to make modifications to this manual without any further
notice.
For more detailed technical data about the MC2 Series Calibrators, please
contact the manufacturer.
&copy; 2004-2016
BEAMEX OY AB
Ristisuonraitti 10
FIN-68600 Pietarsaari
FINLAND
Tel
+358 - 10 - 5505000
Fax
+358 - 10 - 5505404
E-mail:
[email protected]
[email protected]
Internet:
http://www.beamex.com
8812000 / MC2uEng / Version 3c
Trademarks and Statements
QCAL&reg; is a registered trademark owned by Beamex Oy Ab.
Other trademarks are property of their respective owners.
MC2 contains licensed software which requires that the source
code is available for You. Please contact Beamex to obtain it.
MC2 is based in part on the work of the FLTK project
(http://www.fltk.org).
Contents
Contents
Part A, General
Introduction ........................................................................................2
About This Manual ................................................................................... 3
Typographical Conventions ............................................................... 3
Unpacking and Inspection ........................................................................ 4
MC2 Hardware ....................................................................................5
Connections ............................................................................................. 6
Pressure Modules .............................................................................. 7
Connectors on the Left Side of MC2 .................................................. 8
Terminals ........................................................................................... 8
Support for Table Top Use ....................................................................... 9
Memory .................................................................................................... 9
Display...................................................................................................... 9
Keyboard ................................................................................................ 10
Batteries ................................................................................................. 11
About the Charger and the Charging Procedure ............................. 12
Removing/Replacing the Batteries................................................... 13
Capacity Indication ........................................................................... 14
PC Communication with USB .......................................................... 15
MC2 Firmware ..................................................................................16
General Description................................................................................ 16
Startup Procedure ............................................................................ 16
Basic Mode and Higher Level Functions ......................................... 16
Basic Mode's User Interface .................................................................. 17
The Status Bar ................................................................................. 17
Windows 1 and 2 ............................................................................. 17
The Function Key Bar ...................................................................... 18
Menu ................................................................................................ 18
Configuration Windows .......................................................................... 19
Field Types Available for Editing Data ............................................. 20
MC2 User Guide
Contents
MC2's Modularity and Options ....................................................... 24
Hardware Modules/Options .................................................................... 24
Other Devices......................................................................................... 25
Safety ............................................................................................... 26
Symbols Used ........................................................................................ 26
Safety Precautions and Warnings .......................................................... 27
General Warnings ............................................................................ 28
Warnings Concerning Electrical Measurement and Generation ...... 28
General Warnings Concerning Pressure Measurement .................. 29
Warnings Concerning High Pressure .............................................. 30
Disposal of Waste Electrical and Electronic Equipment .............. 31
Service ............................................................................................. 32
Firmware Update .................................................................................... 32
The Battery Charger ............................................................................... 32
Resetting MC2 ....................................................................................... 32
Recalibrating MC2 .................................................................................. 33
Cleaning MC2......................................................................................... 33
MC2 User Guide
Contents
Part B, Startup and Basic Operation
Starting MC2.....................................................................................36
Startup Procedure .................................................................................. 36
Basic Mode, Defined .............................................................................. 37
Measuring .........................................................................................39
Current Measurement ............................................................................ 41
Frequency Measurement ....................................................................... 43
Pressure Measurement .......................................................................... 44
Connecting and Disconnecting External Pressure Modules ............ 45
Zeroing a Pressure Module.............................................................. 46
Pulse Counting ....................................................................................... 47
Resistance Measurement ...................................................................... 48
Switch State Sensing ............................................................................. 49
Temperature Measurement (RTD) ......................................................... 51
Temperature Measurement (Thermocouple) ......................................... 52
Voltage Measurement ............................................................................ 53
Generating/Simulating .....................................................................54
Changing the Generated/Simulated Value............................................. 55
Spinning and Manual Stepping ........................................................ 55
Current Generation................................................................................. 57
Frequency Generation ........................................................................... 59
Pulse Generation.................................................................................... 60
Resistance Simulation ............................................................................ 61
RTD Sensor Simulation .......................................................................... 62
Thermocouple Simulation ...................................................................... 64
Voltage Generation ................................................................................ 66
MC2 User Guide
Contents
Tools Menu ...................................................................................... 67
Function Info........................................................................................... 68
Alarms .................................................................................................... 69
Damping ................................................................................................. 70
Leak/Stability Test .................................................................................. 71
Stepping ................................................................................................. 73
Ramping ................................................................................................. 76
Manual Stepping .................................................................................... 78
Display Mode and Special Measurements ............................................. 81
Error % ............................................................................................. 82
Error in Input Units ........................................................................... 83
Error in Output Units ........................................................................ 84
Percentage ....................................................................................... 85
Scaling ............................................................................................. 86
Deviation .......................................................................................... 87
Redundant ....................................................................................... 88
Difference ......................................................................................... 89
Showing Data on the Additional Info Row .............................................. 90
Resetting and Clearing Additional Info Row / Calculations.............. 93
MC2 User Guide
Contents
Part C, Advanced Operation and Configurations
Utilities Menu ...................................................................................96
About This Calibrator ............................................................................. 96
User Setups for &amp; .......................................................................... 97
Date/Time ............................................................................................... 98
General Settings..................................................................................... 99
Calibrator Adjustment ........................................................................... 100
Custom Test Point Sets ................................................................. 101
Custom Transfer Functions .......................................................... 103
Custom Pressure Units ................................................................. 106
Related Information ....................................................................... 107
Things to Consider when Measuring Pressure .................................... 108
General .......................................................................................... 108
Pressure Type ................................................................................ 108
Pressure Modules and their Naming Conventions ........................ 109
Square Rooting .............................................................................. 110
Thermocouple Measurement/Simulation, Connections and
Troubleshooting.................................................................................... 111
Internal Reference Junction ........................................................... 111
External Reference Junction .......................................................... 112
Error situations ............................................................................... 115
Resistance and RTD Measurement, Connections ............................... 116
4-wire System ................................................................................ 116
3-wire System ................................................................................ 116
Using a Compensation Loop.......................................................... 117
2-wire System ................................................................................ 117
Current Measurement Parallel to a Test Diode, Connections .............. 118
Parallel Functions in MC2 .................................................................... 119
MC2 User Guide
Contents
Part D, Calibration
General ........................................................................................... 122
Phases of Instrument Calibration ......................................................... 123
As Found Calibration ..................................................................... 124
Adjustment ..................................................................................... 124
As Left Calibration.......................................................................... 125
Calibrating an Instrument ............................................................. 126
A Calibration Procedure Using MC2 .................................................... 126
Examples of Instrument Calibration ..................................................... 127
Pressure Transmitters.................................................................... 128
Temperature Indicators and Recorders ......................................... 130
Electrical Limit Switches ................................................................ 132
Temperature Sensors .................................................................... 134
Pneumatic Pressure Transmitters and Converters ........................ 136
MC2 User Guide
Contents
Appendixes
Appendix 1, Technical Data .......................................................... 140
MC2 General Specifications ................................................................. 140
Pressure Modules ................................................................................ 141
Internal Pressure Modules (IPM) ................................................... 141
External Pressure Modules (EXT), High Accuracy ........................ 142
External Pressure Modules (EXT), Standard Accuracy ................. 144
Electrical Measurements ...................................................................... 145
Voltage Measurement .................................................................... 145
Current Measurement .................................................................... 145
Frequency Measurement ............................................................... 146
Pulse Counting ............................................................................... 146
Switch Test .................................................................................... 146
Electrical Generation, Sensor Measurement and Simulation .............. 147
mV Measurement (T/C-Terminals) ................................................ 147
mV Generation (T/C-Terminals)..................................................... 147
Voltage Generation ........................................................................ 148
mA Generation (Source/Sink) ........................................................ 148
Resistance Measurement .............................................................. 149
Resistance Simulation ................................................................... 149
Frequency Generation ................................................................... 150
Pulse Generation ........................................................................... 150
Temperature Measurement and Simulation ......................................... 151
RTD Measurement and Simulation ................................................ 151
Thermocouple Measurement and Simulation ................................ 154
Appendix 3, Index .......................................................................... 158
MC2 User Guide
Feedback
Feedback
We want to improve our products and services constantly. Therefore
we’d like to know Your opinion of the product You use. Please spend a
moment of Your valuable time in filling this form. All respondents will
receive a surprise gift in return.
Certain questions can be answered immediately after receiving the
product. Others require some use of the product before You are able
to answer them. The best way to fill the form is to answer the items as
it applies, and send the form to us when all items are answered. There
are however no definite restrictions; fill in the form when you feel like it
(all items need not be answered). Then send it to Beamex using one of
the possibilities listed below.
Mail:
Beamex Oy, Ab
Quality Feedback
P.O. Box 5
68601 Pietarsaari
FINLAND
Fax
+358 - 10 - 5505404
Only the next page need to be faxed to us.
Internet: http://www.beamex.com
A similar form is available as a web page
E-mail:
MC2 User Guide
[email protected]
Refer to the numbered items on the next
page in Your e-mail message.
Feedback
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MC2 User Guide
General
Things discussed in Part A:
• An introduction to what MC2 is
and what the parts of this User
Guide concentrate on.
• A general description of MC2's
hardware.
• A general description of MC2's
firmware.
• The modularity and options of
MC2.
• Safety precautions and
warnings.
• Briefly about how to service
MC2.
Introduction
Introduction
The MC2 series calibrators are compact hand-held calibrators with
an easy to use graphical user interface. The calibration capabilities
vary depending on the model at hand:
•
MC2-PE is meant for calibrating pressure instruments.
•
MC2-TE is intended for calibrating temperature instruments.
•
MC2-MF is a fully equipped multifunction calibrator including
the capabilities of both MC2-PE and MC2-TE.
To find out which model you have, see the sticker on the back side
of your MC2.
This manual describes the features of all MC2 models. If a feature is
not included in a certain model, it is mentioned in the beginning of
the feature's presentation.
Being a Beamex calibrator, MC2 represents the high, uncompromised quality standards evident in other Beamex calibration
equipment. It is another MC calibrator you can rely on and a
calibrator that completes your range of MC calibrators.
2
MC2 User Guide
About This Manual
About This Manual
This User Guide is divided in four parts: A, B, C and D.
•
Part A discusses general matters. There is also a chapter
about safety.
•
Part B describes the basic use of MC2 such as measuring
signals and setting up Display Modes and Special
Measurements.
•
Part C handles configuration level usage and also offers more
information concerning measurements/simulations.
•
Part D concentrates on the calibration of instruments.
The even page header displays the title of the active part. The odd
page header displays the main subject (Heading level 1).
The header of each odd page also indicates the
active part as shown in the adjacent picture (with
Part B active).
Use the information provided in the headers as a quick guide when
searching for a particular subject.
Typographical Conventions
All examples of user interface texts are printed using Bold Font,
e.g.
Field: Trigger Level
All front panel texts (fixed texts on MC2's cover) are printed using
Narrow Font, e.g.
Function Key F1
Function and Menu keys are often referred to using both the key
name in Narrow Font and the corresponding text (function) displayed
on the screen in Bold Font, e.g.
Function Key =F3/Menu
MC2 User Guide
3
Introduction
Unpacking and Inspection
At the factory each new MC2 passes a careful inspection. It should
be free of scrapes and scratches and in proper operation order upon
receipt. The receiver should, however, inspect the unit for any
damage that may have occurred during transit. If there are signs of
obvious mechanical damage, package contents are incomplete, or
the instrument does not operate according to specifications, contact
the purchasing sales office as soon as possible. The standard
accessories are as follows:
•
•
•
•
•
•
•
•
•
•
Calibration certificate,
a warranty card,
this User Guide,
A CD-ROM with product information, USB driver etc.
computer communication cable (USB),
internal rechargeable NiMH batteries,
battery eliminator/charger for the batteries,
test leads and clips,
a Cu-Cu adapter for millivolt measurement (not with MC2PE) and
a pressure connector adapter from G1/8” female to G 1/8”
male with 60&deg; internal cone (not with MC2-TE).
For a description of available options, see MC2's Modularity and
Options on page 25.
If you have to return the instrument to the factory for any reason, use
the original packing whenever possible. Include a detailed
description of the reason for the return.
4
MC2 User Guide
Unpacking and Inspection
MC2 Hardware
General features:
•
Integrated impact protectors
•
A support for using the calibrator on the table
•
Weight 720...830 g (1.59 ... 1.83 lbs) depending on model and
installed pressure modules.
•
Operating temperature: -10 A +50 &deg;C (14 A 122 &deg;F).
0 A +35 &deg;C (32 A 95 &deg;F) when charging the batteries.
•
Storage temperature: -20 A +60 &deg;C (-4 A 140 &deg;F).
Note: The stickers and the batteries may be affected when
storing longer periods in extreme conditions.
•
Humidity: 0 A 80 % R.H. non condensing
More comprehensive specifications are available in Appendix 1.
MC2 User Guide
5
MC2 Hardware
Connections
E X T
fo r E
P re s
M o d
c o n n e c to r
x te rn a l
s u re
u le s
In te r n a l
P re s s u re
M o d u le
c o n n e c to r
O P T IO N
c o n n e c to r fo r
fu tu re n e e d s
U S B c o n n e c to r
fo r c o m p u te r
c o m m u n ic a tio n
P O W E R
c o n n e c to r
fo r c h a rg e r
R u b b e r c o v e r
to p ro te c t th e
c o n n e c to rs
T h e r m o c o u p le
M e a s u re m e n t
&amp; S im u la tio n
R T
S im
E le
G e
D M e a s . &amp;
u la tio n a n d
c tr ic a l
n e r a tio n
E le c
M e a
a n d
S u p
tr ic a l
s u re m e n ts
2 4 V
p ly
Note.
The picture above is of a model MC2-MF. MC2-TE does not have an
internal pressure module. MC2-PE only has the Electrical
measurement and 24 V terminals at the bottom of the front panel. .
6
MC2 User Guide
Connections
Pressure Modules
Internal Pressure Module
Internal Pressure Modules are available in models MC2-MF and
MC2-PE. One gauge type Internal Pressure Module may be installed
into the aforementioned models. They may also include an additional
Barometric Pressure Module.
The connector for the gauge type Internal Pressure module is
located in MC2's upper panel.
The allowed pressure media for gauge type internal pressure
modules is inert, non-toxic, non-explosive media. Use of pressure
media classified as dangerous is prohibited.
For Beamex 60&deg; cone connector: To avoid damaging the calibrator,
use hand tightening only when connecting the pressure
measurement hose (max. torque 5 Nm, approx. 3.6 lbf ft). If the use
of tools is required to secure the connection, apply the counterforce
with a spanner on the connector body's hexagonal part.
Remember to be cautious when working with pressure and pressure
modules. See also chapters Safety on page 27 and Safety
Precautions and Warnings on page 28.
External Pressure Modules
MC2 has a connector for External Pressure Modules (EXTs). The
connector is located on the left side of MC2. External Pressure
Modules, supported by MC2, may be connected to all MC2 models.
MC2 automatically recognizes when an External Pressure Module is
connected or removed. More of pressure measurement in part B of
this manual.
MC2 User Guide
7
MC2 Hardware
Connectors on the Left Side of MC2
The left side of MC2 (front view) has four connectors as follows:
EXT
External Pressure Modules are discussed in chapter
External Pressure Modules on page 7 and in Part
B of this manual.
OPTION
Reserved for future needs
USB
For computer communication, e.g. when updating
the firmware and sending/receiving instrument data.
For USB driver information, see chapter PC
Communication on page 15.
POWER
Charger connector (Battery eliminator when using
dry cells)
Warning!
There is no galvanic isolation between the connectors on the left
side as well as the internal pressure module connector.
Terminals
The lower part of the front panel has terminals for measuring,
generating and simulating signals. The terminals available vary
depending on model at hand.
8
•
Model PE has terminals for measuring voltage, current
and frequency. It can also be used when counting pulses
or detecting the state of a switch.
•
Models MF and TE have the following additional terminals:
Thermocouple measurement and simulation, RTD
measurement and simulation, voltage,
current,
frequency and pulse generation.
MC2 User Guide
Support for Table Top Use
Support for Table Top Use
The support gives you a good viewing angle when MC2 is placed on
a table top.
Memory
MC2 maintains data very much like personal computers. Data is
saved on a solid state memory that does not need any power to
maintain its state. Solid state memory is shock proof so the data is
not lost when the calibrator is transported.
Display
MC2 has a backlit LCD display. The resolution of the display is
160 x 160 pixels.
The backlight is turned on or off by briefly pressing the power button.
Pressing the button for a longer time shuts down MC2. More of
backlight settings in part C of this manual.
To tune the contrast of the display:
•
Press F1/Contrast when either viewing the welcome
screen or the General Settings screen.
•
Use the up
contrast.
and down
arrow keys to change the
The changed settings are automatically saved as default settings.
MC2 User Guide
9
MC2 Hardware
Keyboard
Function Keys
The Function Keys are located below the display. The meaning of
each Function Key varies depending on the situation. The lower
part of the display indicates what the Function Key stands for at the
moment.
Numeric Keys
A B C
D E F
2
3
1
G H I
J K L
4
M
N O
5
P Q R S
7
6
T U V
8
W
X Y Z
9
0
The Number keys are used when entering numbers in numeric
fields and letters in text fields (as in cellular phones).
Pressing the +/- key toggles the sign of the entered numeric value.
In text fields, this key contains a set of symbols and Greek letters.
The Decimal key adds the decimal point to the numeric value that is
currently edited. In text fields, this key contains additional symbols
such as punctuation marks as well as super and subscript numbers.
Arrow Keys and Enter Key
The arrow keys are used when moving the cursor on the screen.
They also have several special functions in certain situations, e.g.
when tuning the contrast of the display.
The Enter key both starts and finishes the editing of all types of
fields.
On/Off and Backlight Key
The On/Off key switches MC2 on and off. Press the On/Off key for
about half-a-second to switch on/off. This delayed function prevents
accidental on/off switching of MC2.
When pressing the On/Off key briefly, it toggles the display back
light on and off.
10
MC2 User Guide
Batteries
Batteries
MC2 supports the use of both rechargeable batteries and alkaline
batteries. When using alkaline batteries, you need a Dry Battery
Cartridge. MC2 automatically detects the battery type.
The alkaline batteries to be used are:
- Type:
AA
- Cell Voltage:
1.5 V
- Amount:
4
The charger for rechargeable batteries operates in the following
environments:
- Voltage:
100 A 240 VAC
- Frequency:
50/60 Hz
MC2 may be used while the Battery Pack is being charged. The
charger may also be used together with the Dry Battery Cartridge.
Then it acts as a Battery eliminator.
The maximum operating time without recharging varies depending
on the usage of the display back light. Also the usage of the 24V
transmitter supply affects the maximum operating time. Even with
constant maximum load, the standard rechargeable batteries should
last for 6 hours. A good average operating time is 12 hours..
If alkaline batteries are in use, the maximum operating time also
depends on the quality of the batteries. An average operating time is
approximately 4 hours.
Full batteries:
Empty batteries:
The upper left corner of MC2's display shows a picture of a battery.
The whiter the picture is, the more acute is the need for recharging
(or changing of the alkaline batteries).
Notes.
MC2's internal clock/calendar uses a small amount of power
although the calibrator is switched off. Remember to check the
capacity of the batteries from time to time although MC2 is not in
use.
To avoid loss of date and time, change the batteries with the
charger / battery eliminator connected.
See also chapter Capacity Indication on page 14.
MC2 User Guide
11
MC2 Hardware
About the Charger and the Charging Procedure
When charging the batteries the battery symbol and a plug symbol
alternates on the status bar. When charging is ready, only the plug
symbol is shown.
If MC2 is shut off and the charger is connected, a battery status bar
appears. After a while an estimate of the remaining charge time
appears below the battery status bar (see leftmost picture below).
1 7 .0 9 .2 0 0 4 0 9 :3 6 :2 2
C H A R G IN G
B a tte ry s ta tu s
1 7 .0 9 .2 0 0 4 1 1 :5 0 :2 2
C H A R G IN G R E A D Y
B a tte ry s ta tu s
E s tim a te d tim e le ft: 2 h 1 4 m in
The charging time depends on calibrator's current consumption
(backlight, mA sourcing etc.). With no extra load, the charging time is
approx. 5 hours.
When charging while MC2 displays the charging window, MC2
beeps when the batteries are fully charged. Then the display looks
like rightmost picture above.
Warnings!
USE ONLY THE CHARGER PROVIDED WITH THE CALIBRATOR.
The charger accepts input voltages from 100 to 240 VAC.
The charger should only be used indoors and the temperature
should not exceed 35 &deg;C (95 &deg;F).
12
MC2 User Guide
Batteries
Removing/Replacing the Batteries
To remove or replace the batteries, perform the following procedure:
1. Turn MC2 upside down (the display facing the table top) and
lift the support.
2. Unscrew the two screws holding the cover (see the picture
above).
3. Bend the clip holding the battery pack connector and gently
pull the connector out.
4. To replace the battery pack, click the connector of the new
battery pack on its place (noting the polarity) and put the
battery pack in its slot.
Note.
See also chapter Capacity Indication on page 14.
MC2 User Guide
13
MC2 Hardware
Capacity Indication
If you reset the calibrator or remove/replace the battery pack, &quot;teach&quot;
the capacity of the batteries to the calibrator's charging electronics
by doing as follows:
1. Fully charge the batteries
(approx. 5 hours with no
extra load).
2. Connect the current
generation terminals to
the current measurement
terminals as shown in the
adjacent picture.
3. Configure Window  to
measure current with
supply on. See also note
below.
4. Configure Window  to
generate (sink) 8 mA.
The user interface should
look as in the adjacent
picture.
5. Do not use the
backlight.
6. Let the calibrator fully discharge its batteries. This is the stage
where the charging electronics &quot;learn&quot; the capacity of the
battery pack.
7. When the calibrator shuts itself automatically, the learning is
done.
8. Recharge the batteries and start using the calibrator
Note.
See part B for more detailed information on connections and
configuring Window 1 and 2.
Hint.
If the calibrator's capacity indication has gotten mixed up, use the
following method to reset the capacity indication:
Fully discharge the batteries as presented above. Then start recharging
and immediately select F3/Menu, Calibrator Adjustment and enter
1590 as the &quot;password&quot;. This resets the capacity indication to 0 %.
Then &quot;teach&quot; the capacity of the batteries using the instructions above
again.
Similarly, the &quot;password&quot; 1599 sets the capacity to 100 %, if needed.
14
MC2 User Guide
Batteries
PC Communication with USB
The first time you connect MC2 to a computer (using the USB cable
delivered with MC2), Windows' Found New Hardware Wizard
initializes wanting to install a device driver.
The driver can be found at Beamex's web site
(http://www.beamex.com). Look for MC2/MC2-IS/MC4 downloads.
The driver is part of the software update package.
Notes.
The driver has been tested on Windows XP, Windows 2000,
Windows Vista and in Windows 7, 32 and 64 bit versions.
Windows 95, 98, NT4, ME operating systems are not supported.
See also possible additional information delivered with the driver.
This procedure is needed when connecting MC2-IS for the first time
to a particular USB port in a PC. After the driver is installed,
communication initializes automatically, if MC2-IS is connected to
the same USB port in a PC.
MC2 User Guide
15
MC2 Firmware
MC2 Firmware
MC2's firmware is saved in FLASH memory. Therefore it is relatively
easy to update the firmware whenever a new version with fresh
capabilities is released. See Firmware Update on page 32 for more
information on updating the firmware in your MC2.
General Description
The following chapters briefly describe each main function.
Startup Procedure
When starting MC2 the startup procedure ends up in a welcome
screen. From there it proceeds to Basic Mode and you are ready to
start using the calibrator.
A more comprehensive description of the Startup Procedure is in the
beginning of Part B of this manual.
Basic Mode and Higher Level Functions
In Basic Mode you can measure, generate and simulate signals. There
are two separately configurable windows available.
All main functions of Basic Mode are described in part B of this
manual.
Part C concentrates on higher level functions and additional
information.
Calibration related information is available in Part D of this manual.
16
MC2 User Guide
Basic Mode's User Interface
Basic Mode's User Interface
The main elements of the Basic Mode can be seen in the following
picture:
S ta tu s B a r
W in d o w
1

2 1 .0 8 .2 0 0 8
k P a
M a in m e a s u re m e n t 1
1 0
0
W in d o w
2
M a in m e a s u re m e n t 2
1 4 :3 8 :2 2
G a u g e
A la r m s
IN T
1 5 .8
2 0
3 0
S u p p ly : O n
m A
1 2 .3 3 0 4
1 6 .4 5 8 3
S e tu p
8 .0 1 3 2
S e tu p
M e n u
A d d itio n a l
In fo R o w :
B a r G ra p h
4 0
U n s ta b le
r e a d in g
A d d
In fo
M in
M a x
itio n a l
R o w :
a n d
V a lu e s
F u n c tio n K e y b a r
Other elements can be found in other windows. They are presented
in the subsequent chapters.
The Status Bar
The Status Bar at the top of the display is divided into two sections.
The first (leftmost) section displays the charge level of the battery
and a plug symbol when the charger/battery eliminator is connected.
The second section displays the date and the third the time.
Windows 1 and 2
MC2 has two windows in Basic Mode. Both windows can
independently be configured to display a measurement value. They
can also be assigned to more data on the extra info row as seen in
the previous picture.
Part of the window is reserved for alarm symbols as well as an
unstable reading symbol (i.e. the measured value is not steady at
the moment).
MC2 User Guide
17
MC2 Firmware
The Function Key Bar
The Function Key Bar at the bottom of the display is visible all the
time. The meaning of the Function Keys varies depending on the
situation. A grayed Function Key text means that the function is
disabled at the moment.
Menu
The Function Keys often open menus, i.e. lists of available items.
2 1 .0 8 .2 0 0 8
m A

2 1 .0 8 .2 0 0 8 1 3 :0 5 :2 2
S u p p ly : O n
m A

5 .4 9 7 5
5 .4 9 7 5
G a u g e
k P a
E X T
1 2 .3
S e tu p
S e tu p
1 3 :0 5 :2 3
2 4 V
M e n u

A b o u
U s e r
k P a D a te
G e n e
C a lib
A c c e
S C A e a v t u nb p cr y e u t l
t th is C a lib r a
S e tu p s fo r
/ T im e G a u
r a l S e ttin g s
r a to r A d ju s tm
s s o r ie s
to r
&amp;
g e E X T
N S B e o d t ut e t po r s m v t a
S M V e e l&auml; e n l cj u t
1 2 .3
e n t
The pair of screenshots above is an example of an opening menu.
This one opens from Basic Mode when F3 Function Key is pressed.
A menu with a longer list has small arrows at the top/bottom of the
list to point out that the list is longer that what is shown.
Use the arrow keys ( and
) to move between menu options.
The F2 Function Key helps you to scroll longer menu list. It allows
you to quickly jump to the end (Bottom) and beginning (Top)
depending on where in the list you are.
Select an item with the Enter key ( ) or use the F3/Select Function
Key. Selecting a menu option results in one of the following events:
1. The menu closes and a window opens for viewing additional
information or for configuring the selected task. This happens,
e.g. when selecting the About MC2 menu option in the
picture above.
2. A tick is added/removed from the selected menu item. It
means that the menu item is selected/deselected for a duty.
This happens, e.g. when selecting which items are to be
shown on the Additional Info row.
3. A sub menu opens allowing you to select one of available
sub menu items.
18
MC2 User Guide
Configuration Windows
Configuration Windows
There are several types of configuration windows. The examples
below contain a selection of user editable fields.
D A T E / T IM E
k P a
D a te F o rm a t
d d .m m .y y y y
d a y
1 0
m o n th
8
y e a r
2 0 0 4
m in
4 5
0 .0 6
A le r t w h e n th e m e a s u r e m e n t
&gt; 1 .5 0 0
&lt;
s e c
2 2
IP M
A la r m s A c tiv e
T im e F o r m a t
h h .m m .s s 2 4 h
h o u r (2 4 h )
1 3
A L A R M S
G a u g e
0 .1 0 0
A le r t w h e n th e r a te o f c h a n g e
O k
S to p
C a p tu re
O k
The view of the date/time configuration window contains selection
lists and numeric fields.
The view of the alarms configuration window contains check boxes
and numeric fields.
Descriptions of all field types are presented in the subsequent
chapters.
MC2 User Guide
19
MC2 Firmware
Field Types Available for Editing Data
Use the arrow keys ( and ) to move between fields. Start and
stop editing a field with the Enter key ( ).
Fields typically have three modes:
1. The field is displayed, but the cursor is not highlighting
that particular field.
2. The cursor is highlighting a field.
3. The field is in edit mode.
All field presentations include a list of how the field looks in different
states. Some fields do not exactly follow the above mentioned list of
states. The differences are described where applicable.
Numeric Fields
Not highlighted:
N u m e r ic F ie ld
1 0
Highlighted:
1 0
Edit Mode:
1 5
Beside the Enter key ( ), all Numeric keys sets the highlighted
Numeric field to edit mode. The Enter key leaves the previous number
available for editing and the Numeric keys replace the old value.
and
), the
During edit mode, you can use the arrow keys (
F3/Clear and F2/ (= backspace) Function Keys to edit the field.
Accept the new value by pressing the Enter key ( ). To discard
changes, use the F1/Cancel Function Key. See also Part B for
special features concerning numeric fields when generating a signal.
Notes.
Certain numeric fields have an extra tool for inserting a value:
When the field is highlighted, an F2/Capture Function Key appears.
This allows you to capture and save the measured value in the
Numeric field.
Numeric field used for generating/simulating signals include
additional editing possibilities: Spinning and Manual Stepping.
More of them in part B, page 55.
20
MC2 User Guide
Configuration Windows
Text Fields
Not highlighted:
T e x t F ie ld
J u s t T e s tin g
Highlighted, empty:
Highlighted, non-empty:
Edit Mode:
J u s t T e s tin g
B o n a F id e
Beside the Enter key ( ), all Numeric keys set the highlighted Text
field to edit mode. The Enter key leaves the previous text available
for editing and the Numeric keys replace the old text.
During edit mode, you can use the arrow keys (
(= backspace) Function Key to edit the field.
and
) and F2/ Use numeric keys to add characters. Adding characters is done as
follows:
•
•
•
First keypress opens a list of available characters with the first
item highlighted.
Repeated keypresses alter the highlighted characters.
Press the Enter key ( ) or the F3/Select Function Key to
select a character. Additional functionality while the list of
available characters is open:
• If no key is pressed for a certain time, the Automatic
Adding utility selects the highlighted character (not
used in the list of symbols opening from the decimal
key).
• Pressing F3/Cancel closes the list of available
characters and no character is selected.
The F3/Menu Function Key allows you to do the following tasks:
•
•
•
•
Select whether the added characters are:
Upper Case, Lower Case or Numbers.
Select whether the Automatic Adding of characters is:
Fast or Slow.
Clear the field.
Ok for accepting the edited text.
Accept the new text by pressing the Enter key ( ) or use the
previously mentioned menu option. To discard changes, use the
F1/Cancel Function Key.
MC2 User Guide
21
MC2 Firmware
Selection Lists
Not highlighted:
S e le c tio n L is t
d d .m m .y y y y
Highlighted:
d d .m m .y y y y
Edit Mode:
d d .m m .y y y y
m m .d d .y y y y
y y y y .m m .d d
The Enter key ( ) changes a selection list to edit mode. A list of
available options appear. If the list can not display all available items
at the same time (not enough room), the list has small arrows at the
top/bottom. This indicates that the list is longer that what is shown.
Use the arrow keys ( and ) to move between options. The F2
Function Key helps you to scroll longer menu list. It allows you to
quickly jump to the end (Bottom) and beginning (Top) depending
on where in the list you are.
Select one of the options with either the Enter key ( ) or the
F3/Select Function Key. To discard changes, use the F1/Cancel
Function Key.
Some of the selection lists have &quot;favorites&quot; i.e. recently selected
items are moved to the top of the list. This feature is typically
available in longer lists.
Hint.
To quickly jump to an option, use the Numeric keys. The first press
jumps to the closest option starting with the first letter stated above
the Numeric key. Repeated key presses jump to options starting with
subsequent letters stated above the Numeric key.
22
MC2 User Guide
Configuration Windows
Check Boxes
Highlighted:
Checked:
Unchecked:
C h e c k B o x
A check box has no edit mode. Once it is highlighted (thicker
borders), the value of the check box can be altered using one of the
following possibilities:
MC2 User Guide
The Enter key ( ) toggles the value of the check box.
The Sign key ( ) also toggles the value of the check box.
The Zero key ( ) clears the check box.
The One key ( ) sets the check box.
23
MC2's Modularity and Options
MC2's Modularity and
Options
MC2 includes optional hardware modules. This makes it possible to
buy a calibrator with capabilities according your requirements.
Hardware Modules/Options
Internal Pressure Module (IPM)
Available gauge pressure modules:
•
•
•
•
IPM200mC,
IPM2C,
IPM20C,
IPM160,
range: &plusmn;200
range:-1 … +2
range:-1 … +20
range: 0 … 160
mbar
bar
bar
bar
(
&plusmn;80
( -14.5 … 30
( -14.5 … 300
( 0 … 2400
iwc)
psi)
psi)
psi)
MC2 may include one of the above mentioned internal pressure
modules and additionally an internal barometric module.
Optional Dry Battery Cartridge
Enables use of AA size dry batteries instead of the standard
rechargeable NiMH pack accessory.
Optional Pressure T-hose
Hose set for connecting an instrument to be calibrated, a pressure
source and MC2.
24
MC2 User Guide
Other Devices
Optional Soft Carrying Case
MC2's soft carrying case is practical when moving between
locations. The carrying case can also be used for transporting
utilities, like:
•
•
•
•
Test hoses, test leads and clips
External Pressure Module
A pressure pump
Charger and its cable
The carrying case is suited for use in normal industrial environment.
Optional Connection Cable For External Pressure Modules
(EXT)
Needed when connecting External Pressure Modules (EXT) to MC2.
Optional Thermocouple Mini Plugs
For connecting thermocouples to MC2's T/C, mV=connector.
Other Devices
There is an increasing number of devices that can be used together
with MC2. The following list includes devices that are already
available (valid when this manual was printed):
MC2 User Guide
•
External Pressure Modules (EXT)
•
Calibration hand pumps:
- PGV vacuum pump,
- PGM high pressure pump and
- PGXH extra high pressure pump
25
Safety
Safety
The materials of MC2's case withstand normal industrial conditions.
MC2 endures shocks with the help of the built in impact protectors
Symbols Used
The following symbols concerning electrical safety are used in MC2.
Alternating current, AC
Direct current, DC
Caution! See manual for further information
26
MC2 User Guide
Safety Precautions and Warnings
Safety Precautions and Warnings
MC2 calibrator is a precision calibration tool that should be used by
skilled people who have read and understood this User Guide.
Working with MC2 involves the usage of pressure and/or electrical
instruments. Be sure to know how to work with these instruments
and how to safely connect/disconnect pressure hoses as well as
electrical test leads clips, etc.
Use MC2 only if you are certain of that it can be used safely. Safe
use of MC2 is no longer possible if one or more of the following
cases are true:
•
•
•
•
When the case of MC2 is evidently damaged
When MC2 is not functioning as expected
After prolonged storage in unfavorable conditions
After serious damage during transport
Sometimes it is necessary to use a portable radio transceiver while
working with the calibrator. To prevent calibration errors caused by
the radio frequency interference, keep the radio far (at least 1 meter)
from the calibrator and the circuit under calibration while sending.
MC2 User Guide
27
Safety
General Warnings
Do not use MC2 in any other way than as described in this User
Guide.
Use the MC2's battery charger in a non-hazardous indoor location
only and only with Beamex MC2 calibrators. While charging, the
temperature should not exceed 35 &deg;C (95 &deg;F). If MC2's battery
charger is broken, dispose it according to local waste regulations
and order a new charger from Beamex. Do not connect a broken
charger to MC2.
MC2 uses a rechargeable Battery Pack or alkaline batteries. All of
these battery types are considered as hazardous waste. Dispose
used batteries properly according to local regulations.
Avoid short circuiting the batteries. The short circuit current may
cause burns to you, damage to the device or even fire. Notice, that
also new replacement batteries are shipped in charged state.
Rechargeable batteries may vent small amounts of gas during
recharge. The vented gas mixture may be highly explosive, but
normally it diffuses rapidly into the atmosphere. To avoid danger,
use only the original charger and never recharge in a gas-tight
container.
Warnings Concerning Electrical Measurement and Generation
The measurement and generation terminals of MC2 are protected
against over voltage and over current as far as it has been
possible without affecting the accuracy. Do not however connect
signals that are above the measurement range of the selected
Function.
There is no galvanic isolation between the connectors on the left
side, the internal pressure module connector and the terminals of
the Temperature/Generate section.
Although there is a galvanic isolation between MC2's Measure and
Temperature/Generate sections, it is for functional purposes only. Do
not exceed 60 VDC / 30 VAC / 100 mA between any terminal.
Maximum output voltage from MC2's terminals is below 30 V. If
you, however, connect together voltages from the Measure and
Temperature/Generate sections or if you connect external voltages to
MC2, the resulting voltage may be high enough to be hazardous.
28
MC2 User Guide
Safety Precautions and Warnings
General Warnings Concerning Pressure Measurement
The optional pressure T-hose is rated to the maximum pressure of
20 bar at 21&deg;C (290 psi at 70&deg;F). Applying higher pressure can be
hazardous. We recommend the use of the optional pressure hose
set. When using other hoses and connectors, make sure they are
high quality products that withstand the used pressure.
To avoid damaging the calibrator, use hand tightening only (max.
torque 5 Nm) when connecting the pressure measurement hose
to the internal pressure module. If the use of tools is required to
secure the connection (typically an internal pressure module with
a pressure range of 20 bar / 300 psi), apply the counterforce with a
spanner on the connector body's hexagonal part.
Always depressurize the system before opening or connecting
any pressure fittings or connectors. Use proper valves for venting
the system. Ensure that all connections are made correctly and
that the hose and the connectors are intact.
The allowed pressure media for internal pressure modules is
inert, non- toxic, non-explosive media. External modules have the
allowed media printed on the module's sticker. Using unsuitable
pressure media may destroy the pressure module/calibrator.
External Pressure Modules: Use only the pressure media stated
on the pressure module. Use of wrong type of Pressure Media
may destroy the pressure module.
Never exceed the maximum pressure of a pressure module. The
internal pressure module's maximum pressure is stated on
calibrator's sticker. The maximum pressure of external modules is
stated on module's sticker and mentioned in the Instruction
Booklet that is provided with the external module.
Never plug a hose with your hands or put hands in front of a gas
spray coming from a leakage. A gas bubble in the blood
circulation can cause death.
MC2 User Guide
29
Safety
Warnings Concerning High Pressure
High pressure is always dangerous. Only personnel with good
experience and knowledge of high pressure liquid, air and nitrogen operations are allowed to work with the module. Read
carefully all these instructions and local safety instructions for
high pressure operations before starting the use.
When using gas, the system must not contain any liquid, especially if you do not know how they may react under pressure. Use
of clean air or nitrogen is recommended as gaseous pressure
media. Liquid pressure media should be preferred when using
modules with a pressure range of 60 bar (30000 psi) or more.
If you use nitrogen, minimize the leak to the atmosphere and take
care of sufficient ventilation. Close the valve of the nitrogen
cylinder, when the system is not in use. Increase in the percentage of nitrogen in the ambient air may cause unconsciousness
and death without warning. Read carefully the safety instructions
for nitrogen and make sure that the other people in the same
space are aware of the danger.
Use of liquid pressure medium is recommended with pressure
measurement modules at higher pressure range. Use water or
suitable hydraulic oil. Check that the used liquid is not aggressive
against the materials used in the transducer or tubing. When
using liquid, minimize the amount of air in the system. So you can
minimize the amount of spilled liquid in case of leakage.
Do not use the same tubing with different liquids or gases.
Check what the local regulations say about construction and use
of pressurized vessels. The regulations normally control
construction and use of systems where the product of the pressure and volume exceeds a certain limit. The volume of this system depends on the instrument connected to it.
High pressure gas is dangerous because it can break the container and the flying splinters may cause injury. Also small leaks
of gas may be dangerous because the high velocity of the leaking
gas jet enables penetration through skin. If a gas bubble gets into
the blood circulation, it can cause death. The leak jet is
particularly penetrative, if some liquid is coming with the gas.
30
MC2 User Guide
Safety Precautions and Warnings
Disposal of Waste
Electrical and Electronic
Equipment
Beamex is an environmentally conscious company developing
products with a view to ensure that they are easy to recycle and do
not introduce hazardous materials into the environment.
In the European Union (EU) and other countries with separate
collection systems, waste from electrical and electronic equipment
(WEEE) is subject to regulations.
EU WEEE Directive 2002/96/EC (the WEEE Directive) requires
that producers of electronic equipment are responsible for the
collection, reuse, recycling and treatment of WEEE which the
Producer places on the EU market after August 13, 2005. The
objective of this regulation is to preserve, protect and improve the
quality of the environment, protect human health, and conserve
natural resources.
The symbol on the left is also printed on the product's
sticker. It indicates that this product should be handed
over to applicable collection point for the recycling of
electrical and electronic equipment.
For more detailed information about recycling of this product, please
contact your local representative or your waste disposal service.
MC2 User Guide
31
Service
Service
Only qualified service personnel may perform higher level
maintenance for MC2. Never open the case unless have explicit
instructions from Beamex or a local representative.
There are, however a few things that anyone using MC2 may do.
Firmware Update
The quickest way to see if a new firmware version is available is
checking out Beamex's web site (http://www.beamex.com). Go to
the “Downloads” page and see what it says about MC2 firmware
versions and downloads.
All you need is a Personal Computer and the Computer
communication cable that connects MC2 to one of the USB ports in
your PC. For USB driver info, see chapter PC Communication with
USB on page 15 of this manual.
Also check for possible release notes accompanying the updated
file.
The Battery Charger
The charger is not intended to be serviced. When unusable it can be
thrown away according to local waste disposal regulations.
Resetting MC2
Sometimes you may want to reset the calibrator. To do that, press
and hold the Enter key ( ) and the On/Off key ( ) for 5 seconds.
Then press the On/Off key again.
32
MC2 User Guide
Recalibrating MC2
Recalibrating MC2
See Appendix 2 for instructions on how to recalibrate MC2.
Cleaning MC2
If MC2 needs cleaning, use cloth soaked with a mild solution of tall
oil soap (pine soap). Wait a few minutes and then clean using a cloth
moistened with pure water. Never use any strong detergents.
MC2 User Guide
33
Service
(Empty)
34
MC2 User Guide
Startup and Basic
Operation
Things discussed in Part B:
• What happens during the startup
procedure.
• Measuring signals.
• Generating/simulating signals.
• Presenting the utilities available
in a window's Tools menu.
Starting MC2
Starting MC2
Startup Procedure
The duration of MC2's startup procedure depend on the time since
the latest shutdown as well as the type and charge level of the
batteries. For short shutdown periods MC2 stays in &quot;sleep mode&quot;
and the welcome screen opens almost immediately. If the shutdown
lasts longer, MC2's startup begins with a system check-up.
The welcome screen presents some basic information of the
calibrator at hand.
1 9 .0 9 .2 0 0 5 1 2 :4 6 :2 2
W E L C O M E
M o d e l
S N :
V e r s io n
M C 2
2 0 4 8 2
2 .0 0 .0 2 2
Illu m in a tio n s In c ., W o r k s h o p 2
C a lib r a tio n d u e in 2 9 d a y s
C o n tra s t
W a it
C o n tin u e
If you want to view the calibrator information for a longer period,
press the F2/Wait Function Key. Then the calibrator information is
visible until you press the F3/Continue Function Key.
The lowermost row displays the days until (or since) MC2's due date
for recalibration. If the calibration is overdue, or in the near future,
MC2 stops at the welcome screen to remind you of the need for
recalibration. Otherwise it continues to Basic Mode after a while (or
when you press the F3/Continue Function Key).
36
MC2 User Guide
Basic Mode, Defined
Basic Mode, Defined
All measurements/generations/simulations are performed in the
Basic Mode. When returning from MC2's higher level operations
(e.g. calibrator and window configurations), you always return to the
Basic Mode.
In Basic Mode, the two available measurement/generation/simulation windows have default settings based either on factory
settings or settings defined when MC2 was previously used.
The Function keys at the bottom of the window allow you to change
the settings of the two windows or open a menu for higher level
operations etc.
Below is an example picture of a Basic Mode screen with the
following settings.
Window :
Pressure measurement using an external pressure module.
Minimum and maximum value display on the additional info row.
High limit alarm in use, but not active ( ).
Low limit alarm in use and active ( ).
Window :
Current measurement using MC2's 24 V power supply .
Bar graph active on the on the additional info row.

2 1 .0 8 .2 0 0 8
b a r
0 .1 0 1
m A
4
8
S e tu p
MC2 User Guide
1 3 :0 9 :2 2
G a u g e
E X T
1 .3 4 5
2 .5 7 4
S u p p ly : O n
1 0 .3 4 5
1 2
S e tu p
1 6
2 0
M e n u
37
Starting MC2
What can be done in Basic Mode
•
•
•
•
•
•
•
Measure signals (*
Generate signals (*
Simulate signals (*
Set alarm limits
Start special measurements (min/max value etc.)
Use the ramping function
Use the stepping function
*) Available options depend on the installed modules.
Next
Measuring on page 39
Generating/Simulating on page 54
Tools Menu on page 67
Alarms on page 69
38
MC2 User Guide
Basic Mode, Defined
Measuring
All MC2 models are capable to perform the following measurement
functions:
• Current measurement
• Frequency measurement
• Pressure measurement
(model MC2-TE with an external pressure module)
• Pulse counting
• Switch state sensing
• Voltage measurement
Additionally, with models MC2-MF and MC2-TE:
• Resistance measurement
• RTD temperature measurement
• T/C temperature measurement
To start measuring a certain quantity, configure one of the Basic
State's windows (select F1/Setup or F2/Setup ). Use the Enter
key to open to the list of Functions (uppermost field in the
configuration window) and select what you want to measure. All
other fields refine the measurement characteristics.
When presenting measurements in this manual, the first paragraph
describes the measurement, the MC2 model(s) capable of
performing the measurement followed by the Function setting
needed to start that measurement.
MC2 User Guide
39
Measuring
Notes.
In this manual, MC2's measurement Functions are presented in
alphabetic order. The order the Functions appear on your MC2
depends on which Functions have been used most recently.
A Function or a set of Functions using the same terminals can not
be selected for several windows simultaneously. MC2 limits the list
of available Functions based on functions already in use. To free
terminals, select No Function for appropriate window.
Measurement settings including all alarms and other special
measurements may be saved and retrieved. Use the utility found in
the F3/Menu Function Key for saving and retrieving settings. This is
described in Part C of this manual.
Read the warnings found in part A of this manual
40
MC2 User Guide
Current Measurement
Current Measurement
MC2 supports current measurement using either MC2 as the loop
power supply while at the same time measuring the current or simply
measuring the current while an external power supply is used. All
MC2 models are capable of measuring current.
Current Meas., Supply On or
Current Meas., Supply Off
Function:
Also check the HART Compatible Loop Supply setting if you use
MC2 as the power supply. When the option is checked, MC2 adds a
suitable impedance to the loop to ensure HART communication.
Make sure the polarity of your connections is correct. The following
four pictures present the correct connections for different MC2
models and also for different ways of providing the supply power to
the loop.
M C 2 -M F &amp; M C 2 -T E
M C 2 -P E
E le c t r ic a l M
&quot; S u p p ly o n &quot;
T e m p e r a t u r e /
G e n e r a t e
M
e a s u r e
e a s u r e m e n t
&quot; S u p p ly o n &quot;
M
a x 6 0
V
, 3 0
V
, 1 0 0
m A
R , R T D
V , I,
T / C
m V
R
m e a s
s e n s e
V , I,
V , I
M
In s tru m e n t to
b e c a lib r a te d
V
, 3 0
V
, 1 0 0
m A
In s tru m e n t to
b e c a lib r a te d
M C 2 -M F &amp; M C 2 -T E
M C 2 -P E
E le c t r ic a l M
a x 6 0
&quot; S u p p ly o ff&quot;
T e m p e r a t u r e /
e a s u r e m e n t
G e n e r a t e
M e a s u r e
&quot; S u p p ly o ff&quot;
M
a x 6 0
V
, 3 0
V
, 1 0 0
m A
T / C
m V
R , R T D
V , I,
R
m e a s
s e n s e
V , I,
V , I
M a x 6 0
V
, 3 0
V
, 1 0 0
m A
P o w e r
S u p p ly
P o w e r
S u p p ly
In s tru m e n t to
b e c a lib r a te d
MC2 User Guide
In s tru m e n t to
b e c a lib r a te d
41
Measuring
Information concerning current measurement parallel to a test diode
can be found in part C, chapter Current Measurement Parallel to a
Test Diode, Connections on page 118.
Next
Current Generation on page 57.
Tools Menu on page 67.
Alarms on page 69.
Calibration, see Part D.
42
MC2 User Guide
Frequency Measurement
Frequency Measurement
MC2 measures frequencies between 0.0027 Hz (10 cph) to 50 kHz.
All MC2 models are capable of measuring frequencies.
Function:
Frequency Measurement
Also check the Trigger Level setting. There you can specify the
trigger level and whether to use a test voltage during the frequency
measurement.
The frequency measurement terminals for each MC2 model are
highlighted in the pictures below.
M C 2 -M F &amp;
M C 2 -T E
M C 2 -P E
Next
Frequency Generation on page 59
Switch State Sensing on page 49
Pulse Counting on page 47
Calibration, see Part D.
MC2 User Guide
43
Measuring
Pressure Measurement
MC2-PE and MC2-MF are capable of pressure measurement using
their internal pressure module. Additionally, all MC2 models may be
used for measuring pressure using a suitable external pressure
module connected to the EXT connector.
MC2 supports the use of an internal pressure module (if installed).
When connecting an external pressure module to MC2 (any model),
it is automatically detected and there is a possibility to immediately
put the connected external pressure module to use.
Function:
Pressure Internal,
Pressure External or,
Internal Barometer
Also check the Pressure Type setting. If an internal or external
barometer is present, the pressure measurement of any gauge
module may also be displayed as absolute pressure. For more
information concerning pressure types, see chapter Pressure Type
on page 108.
P re s s u re
E x te rn a l
P re s s u re
In te r n a l
M C 2 -P E &amp;
M C 2 -M F
44
MC2 User Guide
Pressure Measurement
Notes.
For more information on pressure measurement and internal/external pressure modules, see chapter Things to Consider when
Measuring Pressure on page 108.
For information on creating custom pressure units, see Part C,
chapter Custom Pressure Units on page 106.
When using high pressure modules, you may measure pseudo
absolute pressure. Open the setup window (select F1/Setup or
F2/Setup ), change the pressure type to absolute. Then an extra
field for entering the barometric pressure appears. Enter the
barometric pressure manually and press F3/Ok. MC2 adds the
manually entered barometric pressure to the measured gauge
pressure and displays the (pseudo) absolute pressure.
Connecting and Disconnecting External Pressure Modules
An external pressure module may be connected and disconnected at
any time. If a removed module was part of an active measurement,
MC2 emits a &quot;bleep&quot; to inform you of the fact that the external
pressure module used for pressure measurement was removed. The
window where the external pressure measurement was configured
reverts to &quot;None/No Function&quot;. This happens even if the external
pressure module was used as the secondary measurement in a
special measurement.
External Barometric Module Specifics
If MC2 includes an internal barometric pressure module and an
external barometric module is connected, the following rules apply:
MC2 User Guide
For most cases: When the external barometric module is
connected to MC2, it supersedes the internal barometric
module.
Exception: If the internal barometric module is used in
conjunction with a gauge module (Pressure Type is Absolute)
and the external barometric module is connected, then MC2
continues to use the internal barometric during that
measurement session.
Disconnecting: When the external barometric module is
removed, any measurements utilizing it are stopped. Restarting
the measurement takes the (possible) internal barometric
module in use.
45
Measuring
Zeroing a Pressure Module
If the selected pressure module does not display zero gauge
pressure when the applied pressure is zero, the module has to be
zeroed.
Open the appropriate window setup menu (F1/Setup or
F2/Setup ) and select F1/Zero Pressure. If a secondary pressure
module is active in the selected window (see Tools Menu on page
67), a pop-up menu will appear for choosing either to zero the
primary or the secondary pressure module.
NOTE!
Zeroing a pressure module is especially important when the
operating position of MC2 is changed or the location of MC2 is
changed in the vertical direction. Both of the above mentioned
factors affect notably on the pressure measurement modules.
Measuring pressure below 100 mbar (approx. 40 iwc) should be
done with a firmly mounted MC2 (e.g. placed on a table top).
Next
Tools Menu on page 67
Alarms on page 69
Calibration, see Part D.
46
MC2 User Guide
Pulse Counting
Pulse Counting
All MC2 models are capable of counting pulses.
Function:
Pulse Counting
Check the Trigger Level setting to specify the trigger level and
whether to use a test voltage during the pulse counting. Also check
the Trigger Edge (Rising or Falling) setting so it suits your need.
The pulse counting terminals for each MC2 model are highlighted in
the pictures below.
M C 2 -M F &amp;
M C 2 -T E
M C 2 -P E
The counter may be cleared (zeroed) by selecting F1/Setup or
F2/Setup (depending on which window is used for pulse counting)
and F1/Clear Pulses.
Next
Pulse Generation on page 60
Frequency Generation on page 59
Frequency Measurement on page 43
Switch State Sensing on page 49
Calibration, see Part D.
MC2 User Guide
47
Measuring
Resistance Measurement
MC2-MF and MC2-TE are capable of measuring resistance.
Function:
Resistance Measurement
The following picture displays the active terminals:
M C 2 -M F &amp;
M C 2 -T E
The two leftmost terminals are used in 2-wire systems. MC2
automatically checks the connection and displays the found wiring
system (2-wire, 3-wire or 4-wire) in the upper right corner of the
measuring window. For more information concerning wiring options,
see Resistance and RTD Measurement, Connections on page
116.
Note.
If the measured resistance value is infinite or very high (&gt; 4000
ohm), the text &quot;+OVER&quot; is displayed in the measuring window. This
means that the circuit is broken or the connection is wrong. Wrong
connection may also cause erroneous reading, typically too low. If
necessary, use the 2-wire ohm measurement to check the wiring
before final connection.
Next
Resistance Simulation on page 61
Temperature Measurement (RTD) on page 51
Tools Menu on page 67
Alarms on page 69
Calibration, see Part D.
48
MC2 User Guide
Switch State Sensing
Switch State Sensing
MC2 is capable of detecting switch's state both when the switch is
free of external potential or switches with DC voltages within the
range -1 V to +30 V. See the pictures below for the location of the
active terminals, depending on the model at hand.
Function:
Switch
Also check the Trigger Level setting. There you can specify
whether to use only a trigger voltage level or do you also want MC2
to include a test voltage to detect switches with no external potential.
All voltages below the trigger level are treated as a closed contact
and all voltages above the trigger level are treated as an open
contact.
The following picture displays the active terminals:
M C 2 -M F &amp;
M C 2 -T E
When switch state sensing is
selected, the extra row info of the
window with the switch function is
capturing measurement values of
the other window every time the
switch changes its state. In the
adjoining screen shot, the switch's
current state is &quot;open&quot; (the big
switch symbol). The last time the
switch opened, the pressure was
3.058 bar and the last time the
switch closed, the pressure was
1.983 bar.
M C 2 -P E

1 0 .1 0 .2 0 0 5
b a r
1 5 :4 0 :2 2
G a u g e
IN T
3 .3 4 5
S w itc h
3 .0 5 8
S e tu p
1 .9 8 3
S e tu p
M e n u
Notes.
The accuracies of the captured values depend greatly on the change
rate of the switch's input signal.
MC2 User Guide
49
Measuring
Hint!
Switch state detection may also be used for binary signal detection.
An open switch equals &quot;1&quot; or true&quot; and a closed switch equals &quot;0&quot; or
&quot;false&quot;.
Use Switch Sound field to assign an &quot;alarm&quot; to a switch. Then you
can use switch test for conductivity/continuity tests with no need to
look at the display.
You can invert the switch's open/closed state indication using the
check box available in the measurement window's setup window.
This can be used to show real switch state when switch state
sensing is connected to relay coil instead of relay contacts.
Next
Tools Menu on page 67
Alarms on page 69
Calibration, see Part D.
50
MC2 User Guide
Temperature Measurement (RTD)
Temperature Measurement (RTD)
MC2-MF and
measurement.
Function:
MC2-TE
are
capable
of
RTD
temperature
RTD Sensor Measurement
Also check the Sensor setting. Make sure you select the same
sensor type than what is connected to MC2. Otherwise your
measurement results are unreliable.
The picture below displays the active terminals.
The two leftmost terminals are
used in 2-wire systems. MC2
automatically checks the
connection and displays the found
wiring system (2-wire, 3-wire or 4wire) in the upper right corner of
the measuring window.
M C 2 -M F &amp;
M C 2 -T E
For more information concerning wiring options, see Resistance
and RTD Measurement, Connections on page 116.
By default the additional info row at the bottom of the window
displays the measured RTD resistance. More of additional info row
on page 90.
Note.
If the measured resistance value is infinite or very high
(&gt; 4000 ohm), the text &quot;+OVER&quot; is displayed in the measuring
window. This means that the circuit is broken or the connection is
wrong. Wrong connection may also cause erroneous reading,
typically too low. If necessary, use the 2-wire ohm measurement to
check the wiring before final connection.
Next
RTD Sensor Simulation on page 62
Resistance Simulation on page 61
Temperature Measurement (Thermocouple) on page 52
Resistance Measurement on page 48
Tools Menu on page 67
Alarms on page 69
Calibration, see Part D.
MC2 User Guide
51
Measuring
Temperature Measurement (Thermocouple)
MC2-MF and MC2-TE are capable of thermocouple temperature
measurement..
Function:
T/C Sensor Measurement
Make sure a temperature unit is selected from the Unit list.
Otherwise the measurement displays voltages, not temperatures.
Check the Sensor setting. Make sure you select the same sensor
type than what is connected to MC2. Otherwise your measurement
results are unreliable.
Also select a suitable Reference Junction compensation method
from the RJ Mode list. Wrong reference junction setting results in
useless measurement results.
Additional information about
Reference Junction compensation
methods can be found in chapters
Internal Reference Junction on
page 111 and
External Reference Junction on
page 112.
M C 2 -M F &amp;
M C 2 -T E
The adjacent picture displays the
active terminals:
By default the additional info row at the bottom of the window
displays either the thermovoltage corresponding to Reference
Junction temperature 0 &deg;C (when Unit field is set to temperature) or
the thermovoltage with Reference Junction compensation taken into
account (when Unit field is set to &quot;Voltage + RJ&quot;). In both cases also
the Reference Junction temperature is shown. More of additional
info row on page 90.
Warning!
If you connect an RTD sensor to the RTD connectors, there is
no galvanic isolation between the thermocouple and the RTD
sensor.
Next
Thermocouple Simulation on page 64
Temperature Measurement (RTD) on page 51
Voltage Measurement on page 53
Tools Menu on page 67
Alarms on page 69
Calibration, see Part D.
Problems with thermovoltage measurement? See Error situations on page 115.
52
MC2 User Guide
Voltage Measurement
Voltage Measurement
MC2 is able to measure voltages. However, the available measurement ranges and connection terminals vary depending on the model
at hand.
Measurement range: 1 to +60 VDC
Function:
Voltage Measurement
This measurement range is available in all MC2 models.
The active terminals for this measurement range are highlighted in
the two pictures below.
M C 2 -M F &amp;
M C 2 -T E
M C 2 -P E
Measurement range:
-25 to 150 mVDC
Function:
Low-Voltage
Measurement
This measurement range is available
in MC2-MF and MC2-TE.
M C 2 -M F &amp;
M C 2 -T E
The active terminals for this measurement range are highlighted in the
adjacent picture.
Warning!
Do not apply hazardous voltages to MC2's terminals.
Next
Voltage Generation on page 66.
Temperature Measurement (Thermocouple) on page 52.
Tools Menu on page 67.
Alarms on page 69.
Calibration, see Part D.
MC2 User Guide
53
Generating/Simulating
Generating/Simulating
MC2 models MC2-MF and MC2-TE are capable to perform the
following generation/simulation functions:
•
•
•
•
•
•
•
Current generation (source or sink)
Frequency generation
Pulse generation
Resistance simulation
RTD sensor simulation
Thermocouple simulation
Voltage generation
Note that MC2-PE is not capable of generating, only measuring
signals.
To start generating/simulating a certain quantity, configure one of the
Basic State's windows (select F1/Setup or F2/Setup ). Use the
Enter key to open to the list of Functions (uppermost field in the
configuration window) and select what you want to
generate/simulate. All other fields refine the generation/simulation
characteristics.
When presenting generations/simulations in this manual, the first
paragraph describes the generation/simulation, the MC2 model(s)
capable of performing the generation/simulation followed by the
Function setting needed to start the generation/simulation.
Notes.
In this manual, MC2's generation/simulation Functions are presented
in alphabetic order. The order the Functions appear on your MC2
depends on which Functions have been used most recently.
A Function or a set of Functions using the same terminals can not be
selected for several windows simultaneously. MC2 limits the list of
available Functions based on Functions already in use. To free
terminals, select No Function for appropriate window.
Read the warnings found in part A of this manual.
54
MC2 User Guide
Changing the Generated/Simulated Value
Changing the Generated/Simulated Value
The simplest way of changing a
generated/simulated
value
is
entering a new value using the
numeric keys. Finish entering the
new value by pressing the Enter
( ) key.
When entering the value, the
Function Keys allow you to clear
the value ( ), remove a character
to the left of the cursor ( ) or
cancel the entering of a new value
( ).
2 1 .0 9 .2 0 0 5
0 9 :5 3 :2 2
V
6 .5
N o n e
C a n c e l
C le a r
Spinning and Manual Stepping
Spinning and Manual Stepping are two easily available methods for
changing the generated/simulated value.
To start Spinning, press the Enter
( ) key when generating/simulating and viewing the Basic Mode
windows. Then one of the generation/simulation digits is inverted.
To spin the inverted digit, use the
).
up and down arrow keys (
To change the digit to be spinned,
press either
or
Function Key.
2 1 .0 9 .2 0 0 5
V
6 .5 1 0 0
N o n e
To stop spinning, press the Enter
( ) key.
Manual Stepping is an additional
functionality
available
while
Spinning.
To start Manual Stepping, you first
need to start the Spinning utility
and then press the F2/Step
Function Key.
To step through the defined steps,
use the up and down arrow keys
(
). To toggle between the
minimum and maximum value,
Function Key.
press the
MC2 User Guide
0 9 :5 8 :2 2
S te p
2 9 .0 8 .2 0 0 5
1 4 :5 8 :2 2
V
9 .0 0 0 0
N o n e
C lo s e
0 %
S e ttin g s
55
Generating/Simulating
Function Key
opens a Manual Step configuration window. Its
functionality is described in chapter Manual Stepping on page 78.
To stop Stepping and return to Spinning, press the Enter ( ) key.
To stop Stepping and return to Basic Mode, press the F1/Close
Function Key.
Notes.
You cannot exceed the minimum/maximum limits of a Function when
Spinning/Stepping.
The spinned/stepped value follows the resolution properties of the
generated/simulated Function.
MC2 remembers the Manual Step configuration settings for each
generation/simulation Function.
56
MC2 User Guide
Current Generation
Current Generation
MC2 is able to generate current both in source and sink mode. In
source mode MC2 provides the supply power to the loop. In sink
mode an external power supply is used and MC2 controls the
current flow. MC2-MF and MC2-TE are capable of generating
current.
Current Source or Sink
Function:
The connection of the current loop varies depending on the setting of
the External Supply, Sink Current (reverse polarity) check box.
See the following pictures.
Source mode:
Sink mode:
E x te r n a l S u p p ly , S in k
C u r r e n t ( r e v e r s e p o la r ity )
M C 2 -M F &amp; M C 2 -T E
T e m p e r a t u r e /
T / C
m V
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
R
M
, 3 0
V
, 1 0 0
m A
M C 2 -M F &amp; M C 2 -T E
e a s u r e
V , I,
m e a s
s e n s e
E x te r n a l S u p p ly , S in k
C u r r e n t ( r e v e r s e p o la r ity )
T e m p e r a t u r e /
T / C
m V
R
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
P o w e r
S u p p ly
In s tru m e n t to
b e c a lib r a te d
In s tru m e n t to
b e c a lib r a te d
Note.
If the loop resistance of the external circuit is too high or infinite, the
message &quot;Overload&quot; is displayed until the load is reasonable.
MC2 User Guide
57
Generating/Simulating
Warnings!
Make sure that you don't exceed the maximum current allowed
by the instrument under test.
If you open the current generation loop, MC2 tries to maintain
the current by increasing the output voltage. If you then close
the loop again, the current is first too high, but returns quickly
to the correct level. If this current peak could damage the
components of the loop, make sure that the loop will not open
or protect it against overcurrent. For the same reason, always
enter 0 mA output before connecting the loop.
Next
Current Measurement on page 41.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
58
MC2 User Guide
Frequency Generation
Frequency Generation
MC2-MF and MC2-TE are able to generate frequencies. The
frequency is either a symmetric or a positive square wave.
Function:
Frequency Generation
Check the Waveform setting. The percentage value is the Duty
Cycle setting (the ratio of the output high time to the total cycle
time). Also check the Amplitude setting.
The adjacent picture displays the
active terminals:
M C 2 -M F &amp;
M C 2 -T E
Note.
Due to technical reasons, the entered Duty Cycle setting is not
always realized. This happens with relatively high and low
frequencies. The true Duty Cycle percentage is shown in the
appropriate Basic Mode window.
See Appendix 1, Technical Data for more specific info of Duty
Cycle limitations.
Next
Pulse Generation on page 60.
Frequency Measurement on page 43.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
MC2 User Guide
59
Generating/Simulating
Pulse Generation
MC2-MF and MC2-TE are able to generate pulses. The pulses are
either symmetric or positive square waves.
Function:
Pulse Generation
The Repetition Frequency (Hz) setting defines the frequency to be
used when generating the pulses.
The Waveform and Amplitude settings are similar to the settings
found in Frequency Generation on page 59.
The adjacent picture displays the
active terminals:
In the Basic Mode window:
M C 2 -M F &amp;
M C 2 -T E
Enter the amount of pulses MC2
should generate. The pulse generation starts immediately after the
amount is entered.
By default the additional info row at the bottom of the window
displays pulses done and pulses left (icons: and respectively).
More of additional info row on page 90.
Note.
Due to technical reasons, the entered Duty Cycle setting is not
always realized. This happens with relatively high and low
frequencies. The true Duty Cycle percentage is shown in the
appropriate Basic Mode window.
See Appendix 1, Technical Data for more specific info of Duty
Cycle limitations.
Next
Frequency Generation on page 59.
Pulse Counting on page 47.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
60
MC2 User Guide
Resistance Simulation
Resistance Simulation
In resistance simulation MC2 mimics a resistor. The instrument
under test generates the current for the resistance measurement.
MC2 controls the voltage across its terminals so that the resistance
(voltage to current ratio) corresponds to the resistance. MC2-MF and
MC2-TE are capable of RTD resistance simulation.
Function:
Resistance Simulation
The correct resistance value is
between the resistance simulation
terminals of the calibrator. Use of 2-,
3- or 4-wire connection is up to the
receiver instrument. Use only the two
leftmost R, RTD terminals with every
wiring option. Connect the possible
third and fourth wire according to the
requirements of the connected
instrument, but use only the two
leftmost R, RTD terminals.
M C 2 -M F &amp; M C 2 -T E
T e m p e r a t u r e /
T / C
m V
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
R
M
m e a s
s e n s e
, 3 0
V
e a s u r e
V , I,
, 1 0 0
m A
Notes.
In resistance simulation MC2 monitors the resistance measurement
current. If the current is too high, it cannot simulate the right
resistance value. In that case it shows the message &quot;High Cur&quot;.
Accurate operation of the simulation electronics requires that the
current supplied by the instrument under test does not vary rapidly.
The simulation result is not accurate if the instrument under test
uses AC current. If the instrument under test uses pulsed
measurement current, it should wait a few milliseconds before
starting the measurement after setting the current.
Next
Resistance Measurement on page 48.
RTD Sensor Simulation on page 62.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
MC2 User Guide
61
Generating/Simulating
RTD Sensor Simulation
In RTD sensor simulation MC2 mimics an RTD. The instrument
under test generates the current for the RTD measurement. MC2
controls the voltage across its terminals so that the resistance
(voltage to current ratio) corresponds to the simulated temperature.
MC2-MF and MC2-TE are capable of RTD sensor simulation.
Function:
RTD Sensor Simulation
Also check the Sensor setting. Make sure you select the same
sensor type than the connected instrument requires. Otherwise your
simulation is useless.
The correct resistance value is
between the resistance simulation
terminals of the calibrator. Use of 2-,
3- or 4-wire connection is up to the
receiver instrument. Use only the two
leftmost R, RTD terminals with every
wiring option. Connect the possible
third and fourth wire according to the
requirements of the connected
instrument, but use only the two
leftmost R, RTD terminals.
M C 2 -M F &amp; M C 2 -T E
T e m p e r a t u r e /
T / C
m V
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
R
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
By default the additional info row at the bottom of the window
displays the resistance MC2 is simulating while performing RTD
simulation. More of additional info row on page 90.
62
MC2 User Guide
RTD Sensor Simulation
Notes.
In RTD simulation MC2 monitors the resistance measurement
current. If the current is too high, it cannot simulate the right
resistance value. In that case it shows the message &quot;High Cur&quot;.
Accurate operation of the simulation electronics requires that the
current supplied by the instrument under test does not vary rapidly.
The simulation result is not accurate if the instrument under test
uses AC current. If the instrument under test uses pulsed
measurement current, it should wait a few milliseconds before
starting the measurement after setting the current.
Next
Temperature Measurement (RTD) on page 51.
Thermocouple Simulation on page 64.
Resistance Simulation on page 61.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
MC2 User Guide
63
Generating/Simulating
Thermocouple Simulation
In thermocouple simulation the original thermocouple is
disconnected from the instrument under test and replaced with MC2.
MC2 mimics a thermocouple at given temperatures. To the
instrument under test MC2 appears as a thermocouple at the given
temperature. MC2-MF and MC2-TE are capable of thermocouple
simulation.
Function:
T/C Sensor Simulation
Check the Sensor setting. Make sure you select the same sensor
type than what is required by the instrument under test. Otherwise
your measurement results are unreliable.
Also select a suitable Reference Junction compensation method
from the RJ Mode list. Wrong reference junction setting results in
useless measurement results. Additional information about
Reference Junction compensation methods can be found in chapters
Internal Reference Junction on page 111 and
External Reference Junction on page 112.
The adjacent picture displays the
active terminals:
M C 2 -M F &amp;
M C 2 -T E
By default the additional info row at the bottom of the window
displays either the thermovoltage corresponding to Reference
Junction temperature 0 &deg;C (when Unit field is set to temperature) or
the thermovoltage with Reference Junction compensation taken into
account (when Unit field is set to &quot;Voltage + RJ&quot;). In both cases also
the Reference Junction temperature is shown. More of additional
info row on page 90.
Notes.
If the resistance of the external circuit in thermocouple simulation is
very low (obvious short circuit), the message &quot;Overload&quot; is
displayed until the load is reasonable.
64
MC2 User Guide
Thermocouple Simulation
If the thermocouple to be simulated is not available MC2's sensor
list, select one of the &quot;Voltage + Reference Junction&quot; units and
convert from temperature to millivolts manually. Also select a
thermocouple type from the Sensor list that approximately matches
your sensor (in used Reference Junction range). This allows MC2 to
perform Reference Junction compensation as accurately as
possible. In this situation, the accuracy depends on the similarity of
the selected sensor in MC2 and the used sensor.
Wire-wound thermocouple temperature indicators and
recorders are calibrated with known loop resistance, commonly ten
or twenty ohms. The required resistance of the conductors is usually
marked on the device. When calibrating such a device, tune the loop
resistance to the nominal value with an additional resistor.
Use MC2's 2-wire resistance measurement to tune the loop
resistance of a wire wound device. Short circuit the measuring
device for the time of resistance measurement. The resistance
measurement may damage the device, if you do not install the short
circuit. For more information on resistance measurement, see
chapter Resistance Measurement on page 48.
Warnings!
If you short circuit the thermocouple simulation output, MC2
tries to maintain the voltage by increasing the output current. If
you then open the output again, the voltage is first too high, but
returns quickly to the correct level. If this voltage peak could
damage the components of the circuit, make sure that the
circuit can not be shorted or protect the circuit against
overvoltage. For the same reason, always enter 0&deg;C output
before connecting the circuit.
If you connect an RTD sensor to the R, RTD connectors, there is
no galvanic isolation between the thermocouple and the RTD
sensor.
Next
Temperature Measurement (Thermocouple) on page 52.
RTD Sensor Simulation on page 62.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
Problems with thermovoltage simulation? See Error situations on page 115.
MC2 User Guide
65
Generating/Simulating
Voltage Generation
MC2-MF and MC2-TE are capable of voltage generation. They both
have two voltage generation ranges as presented here.
Generation range: -3 to 12 V
Function: Voltage Generation
The active terminals for this generation
range are highlighted in the adjacent
picture.
M C 2 -M F &amp;
M C 2 -T E
Generation range: -25 to 150 mV
Function: Low-Voltage Generation
The active terminals for this generation
range are highlighted in the adjacent
picture.
M C 2 -M F &amp;
M C 2 -T E
Warning!
If you short circuit the voltage output, MC2 tries to maintain the
voltage by increasing the output current. If you then remove the
short circuit, the voltage is first too high, but returns quickly to
the correct level. If this voltage peak could damage the
components of the circuit, make sure that the circuit can not be
shorted or protect the circuit against over voltage. For the same
reason, always enter 0 V output before connecting the circuit.
Next
Voltage Measurement on page 53.
Thermocouple Simulation on page 64.
Tools Menu on page 67.
Stepping on page 73
Ramping on page 76.
Calibration, see Part D.
66
MC2 User Guide
Voltage Generation
Tools Menu
MC2's Basic Mode windows have utilities that add extra features to
your measurements/generation/simulations. They are available in a
window's Tools menu. The contents of the Tools menu varies
depending on which function is selected. This is because
measurement
functions
require
different
tools
than
generation/simulation functions.
Tools menu for a measurement Function:
W IN D O W

S E T U P
W IN D O W
F u n c tio n
S E T U P
F u n c tio n
P re s s u re In te rn a l
P re s s u re In te rn a l
F u n c tio n In fo ...
U n it
A la r m s ...
k P a
D a m p in g ...
P re s s u re T y p e
L e a k T e s t...
A D b i ss op ll ua ty e M o d e / S p e c i a l s . . .
S h o w A d d itio n a l In fo ...
U n it
k P a
P re s s u re T y p e
A b s o lu te
Z e ro
P re s s u re

T o o ls
O k
Z e ro
P C r e a s n s c u e r le
T o o ls
B o tto m
O k
S e le c t
Tools menu for a generation/simulation Function:
W IN D O W

S E T U P
W IN D O W
F u n c tio n
S E T U P
F u n c tio n
R T D S e n s o r S im u la tio n
R T D S e n s o r S im u la tio n
F u n c tio n In fo ...
U n it
S te p ...
k P a
R a m p ...
P re s s u re T y p e
M a n u a l S te p (
)...
A D b i ss op ll ua ty e M o d e / S p e c i a l s . . .
S h o w A d d itio n a l In fo ...
U n it
&deg;C
W a v e fo rm
P t1 0 0 a 3 8 5
T o o ls
MC2 User Guide

O k
Z e ro
P C r e a s n s c u e r le
T o o ls
B o tto m
O k
S e le c t
67
Tools Menu
The following subchapters present each utility available in the Tools
menu.
Function Info
Function Info option is always available in the Tools menu.
This option is &quot;enhancing your measurement&quot; by presenting some
useful information of the selected quantity, e.g. the measurement
range and calibration info. Function Info is divided into two pages.
Use F2/More Function Key to move from page to page.
To see Function Info, enter the following menu commands: F1/Setup
or F2/Setup (depending on which window you want to view
Function Info for), F2/Tools and Function Info from the opened
menu.
68
MC2 User Guide
Alarms
Alarms
Each main measurement in a window may have alarm limit settings.
MC2 supports &quot;higher than&quot;, &quot;lower than&quot;, &quot;high rate&quot; and &quot;low rate&quot;
alarms.
To set the alarm limits, enter the following menu commands:
F1/Setup or F2/Setup (depending on which window you want
to configure alarms to), F2/Tools and Alarms from the opened
menu.
Make sure the Alarms Active field is checked. Then the other
settings are available. Table of alarm symbols used:
High alarm limit
Low alarm limit
High change rate alarm limit
Low change rate alarm limit
Individual alarm limit values may also be activated/deactivated using
the check box preceding the alarm limit value. The alarms chosen
for use are shown in the measurement window using the same
symbols as in the table above.
When an alarm limit is exceeded, MC2 emits an audible alarm and
the alarm symbol is shown with inverted colors. To acknowledge the
alarm, open the window's setup window and from here the Tools
menu. Just below the menu's Alarm option is an item that is shown
only when alarms are activated: Acknowledge this Alarm. The active
alarm limit is inverted in the measurement window as long as the
alarm limit is exceeded.
Note.
Rate alarm limits are not &quot;symmetrical&quot;. E.g. high rate alarm
0.5 bar/min emits an alarm when the pressure increases faster that
the limit but does not emit an alarm when the pressure decreases
faster than -0.5 bar/min.
MC2 User Guide
69
Tools Menu
Hint.
If you want to set an alarm that utilizes the change rate alarm limit
but don't know which limit value to use, display the change rate on
the additional info row (see chapter Display Mode and Special
Measurements on page 81). Observe what happens to the change
rate during the event that needs an alarm. Then set the change rate
alarm limit accordingly.
Acknowledging Alarms
When an alarm is active, the Tools menu of the window with the
active alarm includes an option to acknowledge alarms.
Resetting Alarms and Alarm Limits
To stop using alarm limits, uncheck the Alarms Active field.
To stop using and clear all alarm limits, select another Function or
reselect the same Function.
Damping
Damping is useful when a measurement signal contains unwanted
noise. MC2 includes a set of damping tools.
To set the damping value, enter the following menu commands:
F1/Setup or F2/Setup (depending on which window you want
to configure damping to), F2/Tools and Damping from the opened
menu. The damping settings apply to all main and secondary
measurements active in the window when damping was started.
About the filtering options:
Average filters the data using the average of recent measurements.
Adaptive average uses the measurement's change rate to choose
the amount of recent measurements used in the average calculation.
The next group of options are 1st order digital filters with a damping
time as stated in their names.
70
MC2 User Guide
Leak/Stability Test
Leak/Stability Test
Leak/stability test is a tool for testing the leak or stability of, e.g. a
pressure measurement system. Generally: the test tells you both the
absolute and the average change per minute of any measurement
during the test period.
To open the test window, enter the following menu commands:
F1/Setup or F2/Setup (depending on which window you want
to configure the test to), F2/Tools and Leak / Stability Test from
the opened menu.
See the leftmost picture below to see how the test window appears.
The window where the test was invoked in is moved to top and
enlarged to include the test data and the other window is minimized
showing only the essential measurement data. Any data selected to
be shown on the additional info row is temporarily hidden.
2 1 .0 8 .2 0 0 8
1 3 :1 9 :2 2
2 1 .0 8 .2 0 0 8

L E A K / S T A B IL IT Y T E S T
G a u g e
k P a
4 9 .3
m A

L E A K / S T A B IL IT Y T E S T
G a u g e
k P a
4 9 .2
s
3 0
S u p p ly : O n
s
0 .1
3 0
0 .2 /m in d u r in g 3 0 s
m A
1 0 .8 6
C lo s e
+ 3 0 s
1 3 :2 0 :2 2
S u p p ly : O n
1 0 .8 6
S ta rt
C lo s e
+ 3 0 s
S to p
To start the test, first check the test time to be used. Either accept
the default value or enter another time period in seconds. Entering
zero as the test time means the test will continue until manually
stopped. Select F1/Start and see how the test advances.
The rightmost picture above is an example of an MC2 display during
a test. The absolute decrease is shown beside the triangle and the
average decrease per minute below.
MC2 User Guide
71
Tools Menu
Notes.
You may increase the test time in 30 second steps using the
F2/+30 s Function Key. This can be done both before the test is
started and also while the test is in progress.
MC2 uses numbers that have more decimals than are available on
the display. In some cases these extra digits may cause rounding
that differs from values that are shown on display. Notable
differences between shown and manually calculated values usually
mean that MC2's accuracy is not suitable for the given task.
If applicable, disable MC2's auto-off functionality during the test. If
the test lasts longer than the auto-off delay, MC2 is shut down while
the test is still incomplete.
An external pressure module (EXT) connected to MC2 during a
leak/stability test cannot be taken into use in the window were the
leak/stability test is under progress.
Hint.
If you have a pressure transmitter connected to a pressure
measurement system and you want to check the pressure decrease
without altering the pressure connections, do as follows:
Connect the electrical output of the pressure transmitter to MC2. Use
MC2's scaling utility to scale the output signal back to pressure units.
Start the leak/stability test for the scaled measurement and there you
can see the leak in pressure units. More info on scaling in chapter
Scaling on page 86.
72
MC2 User Guide
Stepping
Stepping
Stepping utility is one of three tools allowing you to create
generation/simulation signals that vary with time. This one could be
called &quot;automatic stepping&quot; since one of the other tools is a manual
stepping utility.
Other similar tools:
Ramping on page 76
Manual Stepping on page 78.
To open the stepping configuration window, enter the following menu
commands: F1/Setup or F2/Setup (depending on which
window you want to configure the stepping to), F2/Tools and Step
from the opened menu.
The leftmost picture below shows the configuration window and the
rightmost picture the stepping utility in use.
S T E P
2 9 .0 8 .2 0 0 5
IN T
V
V
6 .0 0 0 0
3 .0 0 0 0
R a n g e (0 %
0 .0 0 0 0
... 1 0 0 % )
... 1 2 .0 0 0 0
5
S te p T im e , s
0
R e p e a ts (0 = &yen; )
1 4 :5 8 :2 2
N o n e
R e p e a t F o rm a t
C l o s e 5 . 9 C 6 a p O t u u r te p u t S t a r t
S e tu p
S e tu p
M e n u
Start stepping by selecting the F3/Start Function Key in the
configuration window. To stop a stepping that is in progress, open
the stepping configuration window and press F1/Stop Step Function
Key.
When stepping is ready, or stopped, you may restart it as follows:
F1/Setup or F2/Setup (depending on which window you want
to configure the stepping to), F1/Start Step. This possibility is
available until a new Function is selected for the window where
stepping was used or MC2 is shut down.
MC2 User Guide
73
Tools Menu
The following table presents the fields of the configuration window.
FIELD
DESCRIPTION/OPTIONS
Range(*
The minimum and maximum value for the
stepping range.
Step Time
Enter the time for a single step. Use only
full seconds, no decimals.
Repeats
Defines how many times the steps are
repeated. Value &quot;zero&quot; equals continuous
stepping.
Repeat Format
How the stepping should be done.
Available options:
Up / Down
Down / Up
Up
Down
Step Definition
Defines how the stepping is done
Available options (with no custom sets):
By: 'Step Size'
By: 'Number of Steps'
3: 50 %
5: 25 %
6: 20%
11: 10 %
0%&gt;10&gt;25&gt;50&gt;75&gt;90&gt;100
0%&gt;2&gt;4&gt;50&gt;96&gt;98&gt;100
0%&gt;5&gt;40&gt;100
-2%&gt;0&gt;2&gt;4&gt;50&gt;96&gt;98&gt;100&gt;102
Create New…
The two first options require additional
data that is entered in the two following
fields.
The group of sets starting with a number
and colon are sets with fixed step sizes.
The first number is the amount of step
levels and the percentage value is the
step size.
The group of sets starting with a number
and percentage symbol are sets with
varying step sizes (suitable for, e.g. valve
tests). Each number is a step level.
The last item in the list allows you to
make your own custom step definition.
Custom steps are presented in chapter
Custom Test Point Sets on page 101.
Continues on next page5
74
MC2 User Guide
Stepping
FIELD (cont.)
DESCRIPTION/OPTIONS
Step Size
Active only if Step Definition field is set to
&quot;By: 'Step Size'&quot;. If applicable, set the fixed
step size here.
Number of Steps
Active only if Step Definition field is set to
&quot;By: 'Number of Steps'&quot;. If applicable, set
the number of steps here.
Transfer Function
Defines the input/output correlation.
Available options:
Linear
√x
√x3
√x5
x2
Create New…
The last item in the list allows you to make
your own custom Transfer Function.
Custom Transfer Functions are presented
in chapter Custom Transfer Functions on
page 103.
*)Warning!
Do not configure the range settings so that they exceed the allowed input range of the connected instrument. MC2
determines the limits of the range settings based on the
selected quantity and port, not the connected instrument.
MC2 User Guide
75
Tools Menu
Ramping
Ramping utility is one of three tools allowing you to create
generation/simulation signals that vary with time.
Other similar tools:
Stepping on page 73
Manual Stepping on page 78
To open the ramping configuration window, enter the following menu
commands: F1/Setup or F2/Setup (depending on which
window you want to configure the ramping to), F2/Tools and Ramp
from the opened menu. Note that ramping is available for
generation/simulation Functions only.
The leftmost picture below shows the configuration window and the
rightmost picture the ramping utility in use.
R A M P
2 9 .0 8 .2 0 0 5
IN T
V
V
4 .5 3 2 0
1 2 .0 0 0 0
R a n g e (0 %
0 .0 0 0 0
1 5 :2 5 :2 2
... 1 0 0 % )
... 1 2 .0 0 0 0
N o n e
R e p e a t F o rm a t
0 .0 0 0
W a it in 0 %
0 .0 0 0
R is e T im e
u t S ta rt
C l o s e 5 . 9 C 6 a p O t u u r te p
S e tu p
S e tu p
M e n u
Start ramping by selecting the F3/Start Function Key in the
configuration window. To stop a ramp that is in progress, open the
ramping configuration window and press F3/Stop Function Key.
When ramping is ready, or stopped, you may restart it as follows:
F1/Setup or F2/Setup (depending on which window you want
to configure the ramping to), F1/Start Ramp. This possibility is
available until a new Function is selected for the window where
ramping was used or MC2 is shut down.
76
MC2 User Guide
Ramping
The following table presents the fields of the configuration window.
FIELD
DESCRIPTION/OPTIONS
Range(*
The minimum and maximum value for the
ramping range.
Repeat Format
Wait in 0%
Rise Time
Wait in 100%
Fall Time
How the ramp should be carried out.
Use only full seconds, no decimals.
Repeats
Defines how many times all four phases
of the ramp are repeated. Value &quot;zero&quot;
equals continuous ramping.
*)Warning!
Do not configure the range settings so that they exceed the allowed input range of the connected instrument. MC2
determines the limits of the range settings based on the
selected quantity and port, not the connected instrument.
Note.
MC2 actually makes the ramp in small steps. The steps are as small
as possible, slower ramps use smaller steps.
MC2 User Guide
77
Tools Menu
Manual Stepping
Manual stepping differs from the other two tools allowing you to
create varying generation/simulation signals in that the signal does
not automatically change. Instead it advances according to the
defined steps when you press the up or down arrow keys (
), one
step at a time.
Other similar tools:
Stepping on page 73
Ramping on page 76
To open the manual stepping configuration window, enter the
following menu commands: F1/Setup or F2/Setup (depending
on which window you want to configure the stepping to), F2/Tools
and Manual Stepping from the opened menu. Note that manual
stepping is available for generation/simulation Functions only.
The leftmost picture below shows the configuration window and the
rightmost picture the stepping utility in use.
M A N U A L S T E P (
)
2 6 .0 9 .2 0 0 5
IN T
V
V
6 .0 0 0 0
3 .0 0 0 0
R a n g e (0 %
0 .0 0 0 0
1 4 :0 4 :2 2
... 1 0 0 % )
... 1 2 .0 0 0 0
N o n e
S te p D e fin itio n
B y &quot;N u m b e r o f S te p s &quot;
3 .0 0 0 0
C lo s e
S te p S iz e
C a p O t u u r te p u t
S ta rt
C lo s e
1 0 0 %
S e ttin g s
Start manual stepping by selecting the F3/Start Function Key in the
configuration window. To stop it, press F1/Close Function Key (in
Basic Mode).
78
MC2 User Guide
Manual Stepping
The following table presents the fields of the configuration window.
FIELD
DESCRIPTION/OPTIONS
Range(*
The minimum and maximum value for the
stepping range.
Step Definition
Defines how the stepping is done
Available options (with no custom sets):
By 'Step Size'
By 'Number of Steps'
3: 50 %
5: 25 %
6: 20%
11: 10 %
0%&gt;10&gt;25&gt;50&gt;75&gt;90&gt;100
0%&gt;2&gt;4&gt;50&gt;96&gt;98&gt;100
0%&gt;5&gt;40&gt;100
-2%&gt;0&gt;2&gt;4&gt;50&gt;96&gt;98&gt;100&gt;102
Create New…
The two first options require additional
data that is entered in the two following
fields.
The group of sets starting with a number
and colon are sets with fixed step sizes.
The first number is the amount of step
levels and the percentage value is the
step size.
The group of sets starting with a number
and percentage symbol are sets with
varying step sizes (suitable for, e.g. valve
tests). Each number is a step level.
The last item in the list allows you to
make your own custom step definition.
See Custom Test Point Sets on page
101.
Step Size
Active only if Step Definition field is set
to &quot;By: 'Step Size'&quot;. If applicable, set the
fixed step size here.
Number of Steps
Active only if Step Definition field is set
to &quot;By: 'Number of Steps'&quot;. If applicable,
set the number of steps here.
Continues on next page5
MC2 User Guide
79
Tools Menu
FIELD (cont.)
DESCRIPTION/OPTIONS
Transfer Function
Defines the input/output correlation.
Available options:
Linear
√x
√x3
√x5
x2
Create New…
The last item in the list allows you to
make your own custom Transfer
Function.
See
Custom
Transfer
Functions on page 103.
*)Warning!
Do not configure the range settings so that they exceed the allowed input range of the connected instrument. MC2
determines the limits of the range settings based on the
selected quantity and port, not the connected instrument.
See also:
Spinning and Manual Stepping on page 55.
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MC2 User Guide
Display Mode and Special Measurements
Display Mode and Special Measurements
The Display Mode and Special Measurements utility is always
available, but the available options vary depending on the selected
Function.
All Display Mode settings are in: F1/Setup or F2/Setup (depending on which window you want to change the display mode
for), F2/Tools. Select Display Mode / Specials from the opened
menu.
When a Display Mode or a Special Measurement is active, the
measurement window display a warning ( ) to indicate that the
reading is not the actual measured value. Depending on the selected
Display Mode or Special Measurement, some additional text is also
shown.
All Display Mode and Special Measurement settings revert to
Normal display mode if you select another quantity. Additionally, the
same menu were a Display Mode or a Special Measurement was
invoked also includes a possibility to revert back to Normal Display
Mode.
Note applying to all display modes and special measurements.
While performing display mode and/or special measurement
calculations, MC2 uses numbers that have more decimals than are
available on the display. In some cases these extra digits may cause
rounding that differs from values that are shown on display. Notable
differences between shown and manually calculated values usually
mean that MC2's accuracy is not suitable for the given task.
MC2 User Guide
81
Tools Menu
Error %
Error Percentage display compares the measurements of the two
windows based on entered measurement range values. The window
the Error Percentage display was invoked from is considered the
&quot;output&quot; of the instrument and the other window the &quot;input&quot;.
The Error Percentage value is shown in the &quot;output&quot; window and the
actual &quot;output&quot; signal is by default shown on the additional info row
as seen in the rightmost picture.
k P a
E R R O R %
G a u g e
.9 8 In p u t
0
In p u t R a n g e (0 %
...
0 .0 0 0
IN T
... 1 0 0 % )
1 0 0 .0 0 0
T r a n s fe r F u n c tio n
L in e a r
m A
S to p
5 .
S u p p ly : O n
9 C 6 a p O t u u r te p u t O k
When Error Percentage display is active, the words &quot;Error %&quot; is
displayed after the warning triangle.
To configure the error percentage display (and also the other types
of error displays) you need to enter input and output range values to
both windows.
In addition to the range you may also set the Transfer Function
(Input/Output relationship). Default value is: Linear.
The display resolution may also be edited, if needed.
Notes.
If anything else was selected for display on the additional info row,
the main measurement of the Error percentage window replaces the
previous additional info data.
Also: if you select two other items to be displayed on the additional
info row while an error display is active, the second item replaces the
windows' main measurement data. Beware of the problems that
may result in not seeing the true measurement value.
For help on making Custom Transfer Functions, see Part C,
chapter Custom Transfer Functions on page 103.
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MC2 User Guide
Display Mode and Special Measurements
Error in Input Units
Error In Input Units display compares the measurements of the two
windows based on entered measurement range values. The window
the Error display was invoked from is considered the &quot;output&quot; of the
instrument and the other window the &quot;input&quot;.
The Error In Input Units value is shown in the &quot;output&quot; window and
the actual &quot;output&quot; signal is shown on the additional info row as seen
in the rightmost picture.

E R R O R IN IN P U T U N IT S
G a u g e
IN T
k P a
0 .9 8 In p u t
In p u t R a n g e (0 %
0 .0 0 0

2 1 .0 9 .2 0 0 4
b a r

b a r
E rr / In
L in e a r
m A
S to p 5 .
S u p p ly : O n
9 C 6 a p O t u u r te p u t O k
IN T
0 .4 4 8
... 1 0 0 % )
1 0 0 .0 0 0
T r a n s fe r F u n c tio n
1 1 :1 3 :2 2
G a u g e
1 0 .8 6
S e tu p
A
0 .0 2
S e tu p
M e n u
When Error In Input Units display is active, the warning triangle is
shown together with the input unit and the text &quot;Err / In&quot; is shown
above the Error value.
Error displayed in input units is in all other ways similar to error
displayed in error percentage. The only difference is in how the
calculated error is displayed.
For configuration details, refer to Error % on page 82.
MC2 User Guide
83
Tools Menu
Error in Output Units
Error In Output Units display compares the measurements of the two
windows based on entered measurement range values. The window
the Error display was invoked from is considered the &quot;output&quot; of the
instrument and the other window the &quot;input&quot;.
The Error In Output Units value is shown in the &quot;output&quot; window and
the actual &quot;output&quot; signal is shown on the additional info row as seen
in the rightmost picture.
E R R O R IN O U T P U T U N IT S
G a u g e
IN T
k P a
0 .9 8 In p u t
In p u t R a n g e (0 %
0 .0 0 0

2 1 .0 9 .2 0 0 4
b a r

m A
E rr / O u t
L in e a r
m A
S to p 5 .
S u p p ly : O n
9 C 6 a p O t u u r te p u t O k
IN T
0 .4 4 8
... 1 0 0 % )
1 0 0 .0 0 0
T r a n s fe r F u n c tio n
1 1 :1 4 :2 2
G a u g e
1 0 .8 6
S e tu p
-0 .3 1
A
S e tu p
M e n u
When Error In Output Units display is active, the warning triangle is
shown together with the input unit and the text &quot;Err / Out&quot; is shown
above the Error value.
Error displayed in input units is in all other ways similar to error
displayed in error percentage. The only difference is in how the
calculated error is displayed.
For configuration details, refer to Error % on page 82.
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MC2 User Guide
Display Mode and Special Measurements
Percentage
Percentage display compares the measured/generated/simulated
value against an entered range (0 % and 100 %).
When measuring, the measured value is replaced by the Percentage
value. The measurement value in engineering units is shown on the
additional info row as seen in the rightmost picture.
When generating/simulating, the Percentage is the editable value
and the generated/simulated value in engineering units is shown on
the additional info row.

P E R C E N T D IS P L A Y
G a u g e
m A
IN T
1 0 .8 6
In p u t R a n g e (0 %
4 .0 0 0
... 1 0 0 % )
2 0 .0 0 0
T r a n s fe r F u n c tio n
L in e a r
D is p la y R e s o lu tio n
S to p
C a p tu re
O k
When Percentage display is active, the letter &quot;%&quot; is displayed after
the warning triangle and the text &quot;Scaled&quot; is shown above the
Percentage value.
To configure the percentage display, enter input range values for the
selected quantity.
In addition to the range you may also set the Transfer Function
(Input/Output relationship). The display resolution may also be
edited, if needed.
Notes.
If anything else was selected for display on the additional info row,
the main measurement of the window with percentage display
replaces the previous additional info data.
Also: if you select two other items to be displayed on the additional
info row while Percentage display is active, the second item replaces
the windows' main measurement data. Beware of the problems
that may result in not seeing the true measurement value.
For help on making Custom Transfer Functions, see Part C,
chapter Custom Transfer Functions on page 103.
MC2 User Guide
85
Tools Menu
Scaling
In Scaling a measured/generated/simulated value may be converted
to whatever &quot;quantity&quot; is needed, provided the conversion
information is known.
When measuring, the measured value is replaced by the scaled
value. The actual measurement value in engineering units is shown
on the additional info row as seen in the rightmost picture.
When generating/simulating, the scaled value is the editable one
and the generated/simulated value in engineering units is shown on
the additional info row.
m A
S C A L IN G
G a u g e
IN T

2 1 .0 9 .2 0 0 4
N o n e
1 0 .8 6
In p u t R a n g e (0 %
4 .0 0 0
... 1 0 0 % )
2 0 .0 0 0

T r a n s fe r F u n c tio n
G a llo n s /m in
S c a le d R a n g e ( 0 %
C a p tu re
... 1 0 0 % )
O k
S c a le d
1 2 3 .6 7
L in e a r
S to p
1 1 :1 6 :2 2
1 0 .8 6
S e tu p
A
S e tu p
M e n u
When Scaling display is active, the entered unit (or the text &quot;scaled
unit&quot; if the unit was not entered) is displayed after the warning
triangle and the text &quot;Scaled&quot; is shown above the Scaled value.
To configure Scaling, enter Input Range values for the selected
quantity, set the Transfer Function, enter the Scaled Range and
the Unit of the scaled range. The display resolution may also be
edited, if needed.
Notes.
If anything else was selected for display on the additional info row,
the main measurement of the window replaces the previous
additional info data.
Also: if you select two other items to be displayed on the additional
info row while Scaling display is active, the second item replaces the
windows' main measurement data. Beware of the problems that
may result in not seeing the true measurement value.
For help on making Custom Transfer Functions, see Part C,
chapter Custom Transfer Functions on page 103.
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MC2 User Guide
Display Mode and Special Measurements
Deviation
Deviation measurement compares a measured value against an
entered reference value. The reference value is subtracted from the
reading of the measured value. The difference replaces the
measurement value. Both the reference value (indicated with a
triangle) as well as the actual measurement value (indicated with a
circled A) are shown on the additional info row as seen in the
picture.
D E V IA T IO N M E A S U R E M E N T
G a u g e
IN T
m A

M e a s u r e D e v ia tio n fr o m
1 0 .0 0 0

2 1 .0 9 .2 0 0 4
N o n e
1 1 :1 7 :2 2
1 0 .8 6
m A
D e v ia tio n
0 .8 6 0 0
1 0 .0 0 0 0
S to p
C a p tu re
O k
S e tu p
1 0 .8 6
S e tu p
A
M e n u
When Deviation measurement is active, text &quot;Deviation&quot; is shown
above the Deviation value.
Hint.
Use the F2/Capture Function Key to add a measured &quot;tare&quot; as the
reference value.
Notes.
If anything else was selected for display on the additional info row,
the main measurement of the window replaces the previous
additional info data.
Also: if you select two other items to be displayed on the additional
info row while Deviation measurement is active, the second item
replaces the windows' main measurement data. Beware of the
problems that may result in not seeing the true measurement
value.
Warning.
Keep in mind that when the displayed deviation reading is small
compared to the actual reading, a significant part of the
deviation value may be measurement error. See the
specifications for measurement errors at the actual
measurement level.
MC2 User Guide
87
Tools Menu
Redundant
In Redundant measurement two similar measurements (e.g.
pressure measurement using both the internal and an external
pressure module) are compared with each other. If the readings
differ more than the entered limit value, MC2 gives an audible alarm.
The selected main measurement is shown normally. The secondary
measurement value (indicated with a circled B) as well as the alarm
limit (indicated with a triangle) are shown on the additional info row
as seen in the rightmost picture.
R E D U N D A N T M E A S U R E M E N T
G a u g e
IN T
b a r
0 .4 4 8
0 .4 5 1

2 1 .0 9 .2 0 0 4
N o n e
E x t. P re s s u re
A le r t if M e a s u r e m e n ts D iffe r
M o re T h a n
b a r
R e d u n d a n t
0 .0 1 0
0 .4 5 1
S to p
1 1 :1 8 :2 2
C a p tu re
O k
S e tu p
0 .4 4 8
B
S e tu p
IN T
0 .0 1 &plusmn;
M e n u
When Redundant measurement is active, text &quot;Redundant&quot; is
shown above the main measurement value.
Notes.
If anything else was selected for display on the additional info row,
the alarm limit and the secondary measurement replaces the
previous additional info data.
Also: if you select other items to be displayed on the additional info
row while Redundant measurement is active, the items replace the
redundant measurement related data. Beware of the problems that
may result in not seeing the true measurement value.
Redundant measurement can be activated only if two similar
measurements are available, and neither of them is used for
any other measurement.
Warnings.
When setting the allowed difference, take the accuracies of the
measurements into account.
If the measuring spans of the selected ports are different, make
sure you do not exceed the measurement range of either port.
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MC2 User Guide
Display Mode and Special Measurements
Difference
In Difference measurement, two similar measurements (e.g.
pressure measurement using both the internal and an external
pressure module) are subtracted.
The Difference replaces the main
measurement value. The main
measurement (minuend, indicated
with a circled A) as well as the
secondary measurement value
(subtrahend, indicated with a
circled B) are shown on the
additional info row as seen in the
picture.
Difference measurement is active,
text &quot;Difference&quot; is shown above
the Difference value.

2 1 .0 9 .2 0 0 4
N o n e
b a r
1 1 :1 9 :2 2
D iffe r e n c e
-0 .0 0 3
0 .4 4 8 + A
S e tu p
S e tu p
0 .4 5 1 - B
M e n u
Notes.
If anything else was selected for display on the additional info row,
the main measurement of the window replaces the previous
additional info data.
Also: if you select other items to be displayed on the additional info
row while Difference display is active, the items replace the
Difference related data. Beware of the problems that may result
in not seeing the true measurement values.
Difference measurement can be activated only if two similar
measurements are available, and neither of them is used for
any other measurement.
Warnings.
Keep in mind that when the displayed Difference reading is
small compared to the actual reading, a significant part of the
Difference value may be measurement error. See the
specifications for measurement errors at the actual
measurement level.
If the measuring spans of the selected ports are different, make
sure you do not exceed the measurement range of either port.
MC2 User Guide
89
Tools Menu
Showing Data on the Additional Info Row
As presented in section A's User Interface chapter, both Basic Mode
windows have an Additional Info row for showing additional data.
Each window may have two values shown on their respective
Additional Info rows. The only exception is the bar graph option. It
reserves the whole Additional Info row alone.
All Additional Info Row settings are in: F1/Setup or F2/Setup (depending on which window you want to change the display mode
for), F2/Tools. Select Show Additional Info from the opened
menu.
The data available to be shown on the Additional Info row can be
divided into following groups:
Data that is Always Available.
Can be selected to be shown at any time.
Display Mode and Special Measurement Related Data.
Data that is available to be shown depending on Display Mode
and Special Measurement settings.
Function Dependent Data.
Data that is available for certain Functions, e.g. barometric
pressure when it is needed.
The following chapters present the data available to be shown on the
Additional Info row. Any limitations as to when the data is available
are mentioned where applicable. Below each heading is the icon or
unit displayed on the Additional Info row when that particular
Additional info is shown.
Maximum value
Displays the found maximum value after a measurement was started
or it was reset.
Minimum value
Displays the found minimum value after a measurement was started
or it was reset.
Rate of Change Value (unit 1/min)
Displays the calculated rate of change value (units/min) found after a
measurement was started or the calculation was reset.
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MC2 User Guide
Showing Data on the Additional Info Row
Maximum - Minimum
&plusmn;
Calculates the difference between the maximum and minimum
measurement value found after a measurement was started or it was
reset.
Cumulative Average
x
Calculates the cumulative average of measurements after a
measurement was started or it was reset.
Cumulative average means that, after the calculation is started,
every new measurement is included in the average calculation. Thus
the amount of measurements included in the cumulative average
increases all the time and the average value's change rate typically
gets smaller with time.
Internal Temperature
&deg;C,
&deg;F or
K
When an internal or an external pressure module is used in a
window, the internal temperature of the pressure module can be
selected to be shown.
Normal Reading
Normal Reading refers to the window's main measurement. It is
available when the following Special Measurements reserve
window's main value: All Error Display Modes as well as
Percentage, Scaling and Deviation measurement.
A
Deviation Reference
Available when deviation measurement is active. This is the entered
reference value MC2 uses to calculate the measurement's deviation
from.
Redundant Measurement (Secondary Measurement)
The secondary measurement used during redundant measurement.
B
Redundant Reference
The alert limit that is entered when redundant measurement was
started. Available only when redundant measurement is active.
Difference A
A
MC2 User Guide
Displays the main measurement during a difference measurement.
91
Tools Menu
Difference B
B
Displays the
measurement.
secondary
measurement
during
a
difference
Barometric Pressure
PB
Displays the barometric pressure value that is used for
measurement’s pressure type conversion. This value comes usually
from built-in barometer, but some high-pressure modules may allow
using manually entered barometer value.
Feedback Measurement
V, mV, &micro;V,
mA, &micro;A,
&deg;C, &deg;F or K
Available for the following generation/simulation Functions:
(same unit as
main value)
Voltage Generation
Low-Voltage Generation
T/C Sensor Simulation
Current Source or Sink
When MC2 generates voltages or current, it uses its own
measurement Functions to control the generated value. This
feedback measurement may be displayed on the Additional Info row.
Thermovoltage, RJ = 0&deg;C
㎷0
Displays the thermovoltage for reference junction temperature 0&deg;C.
Suitable for referring to thermovoltage table values. Available for T/C
Sensor Measurement and T/C Sensor Simulation Functions with
temperature unit selected.
Thermovoltage
㎷
Displays the actual measured thermovoltage for reference junction
temperature. Available for T/C Sensor Measurement and T/C
Sensor Simulation Functions.
RJ Temperature
&deg;C,
&deg;F or
K
Displays the temperature of the reference junction in use. Available
for T/C Sensor Measurement and T/C Sensor Simulation
Functions.
Sensor Resistance
Ω
Displays the real resistance MC2 is measuring or simulating for an
RTD sensor Function.
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MC2 User Guide
Showing Data on the Additional Info Row
Pulses Done
Displays the pulses currently done during Pulse Generation.
Pulses Left
Displays the pulses currently left to be done during Pulse
Generation.
Bar Graph
0
1 0
2 0
3 0
4 0
-5
-2 .5
0
2 .5
5
A Bar Graph is always available in the list of
Additional Info row data, but the type of Bar Graph
depends on the Display Mode and Special
Measurement settings. The bar graph is always
related to the main value (big numbers) and its units,
so configure the Bar Graph's range accordingly.
If any of the Error Display Modes is active, the Bar
Graph displays a graphical presentation of the error
value. The middle of the graph represent zero error
and the symmetrical &quot;width&quot; of the graph is user
configurable
Resetting and Clearing Additional Info Row / Calculations
Active minimum, maximum, rate of change, maximum – minimum
and cumulative average calculations may be reset using the
additional option found in the window's Tools menu: Reset Min /
Max / Rate.
Changing the Function for a window sets all Additional Info data to
default values (usually nothing).
Activating a Display Mode or a Special Measurement often replaces
them with data related to the activated Display Mode or Special
Measurement. Any previously activated minimum, maximum or rate
of change calculations are still working, but are no longer shown
(until selected to be shown again).
MC2 User Guide
93
Tools Menu
(Empty)
94
MC2 User Guide
Advanced Operation and
Configurations
Things discussed in Part C:
• Advanced tools found in the
Utilities Menu.
• Help on how to create
customized test point sets and
transfer functions.
• Related information:
Useful during pressure
measurement, thermocouple
measurement/simulation and
resistance/RTD
measurement/simulation.
Utilities Menu
Utilities Menu
This chapter and its subchapters present items available in the
utilities menu that opens from Basic Mode by pressing F3/Menu.
About This Calibrator
Opens a window presenting basic information of MC2.
A B O U T T H IS C A L IB R A T O R
M o d e l
S N :
V e r s io n
F re e M e m o ry
B a tte ry L e ft
M C 2
2 .0 0 .0 2 2
3 .0 2
9 7 .6 6 %
1 2 h 4 4 m in
In t. P re s s u re
In t. B a ro m e te r
IP M 2 0 C
O p tio n s
2
B
O k
Battery Left is an estimate of remaining usage time.
Pressure modules, if any, are listed below the usage time
estimate.
96
MC2 User Guide
User Setups for &amp;
User Setups for &amp; MC2 supports saving user settings for window and window .
The available free memory defines how many user settings may be
saved.
2 3 .0 8 .2 0 0 5
1 2 :4 5 :2 2
S A V E / R E M O V E S E T U P
S e le c t Ite m
C re a te N e w ...
S a v e a s
L e a k T e s t S e tu p fo r P T 3 2 3 .1
C a n c e l
M e n u
S a v e
In the leftmost picture above, three User Setups are already saved.
Selecting Save / Remove Setup option opens the SAVE / REMOVE
SETUP window allowing you to save the current settings for window
and window (see rightmost picture).
About the second item on the list shown in the leftmost picture
above: Restore Pre-OFF Settings:
MC2's startup is made as straight forward as possible. It does not
automatically restore its more advanced functions (display mode,
special measurements etc.) used when MC2 was shut off. By
selecting the Restore Pre-OFF Settings option, it is possible to
restore MC2's advanced functions used before it was last shut off.
MC2 User Guide
97
Utilities Menu
Date/Time
Allows you to select the displayed date and time formats according
to your needs. This window is also used to set date and time. Use
the day, month, year and hour (24), min, sec fields to set the
date/time.
D A T E / T IM E
D a te F o rm a t
d d .m m .y y y y
d a y
1 0
m o n th
8
y e a r
2 0 0 4
T im e F o r m a t
h h .m m .s s 2 4 h
h o u r (2 4 h )
1 3
m in
4 5
s e c
2 2
C lo s e
Notes.
The time must always be given in the 24 hour format no matter what
the configured time format is.
Date and time will be immediately updated when you change the
value of any of the time related fields.
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MC2 User Guide
General Settings
General Settings
This window allows you to edit the
following settings:
G E N E R A L S E T T IN G S
L a n g u a g e
E n g lis h ( B u ilt In )
A u to - o ff D e la y s ( 0 = n e v e r )
0
C a lib r a to r [m in ]
5
B a c k lig h t [m in ]
G e n e r a l T e m p e r a tu r e U n it
&deg;C
C o n tra s t
FIELD
Language
MC2 User Guide
O k
NOTES
Contains a list of User Interface languages.
Auto-off Delays:
Calibrator [min]
Back light [min]
Wait time before auto power off is
executed and before the display light is
automatically switched off. See also notes
after this table.
Value 0 (zero) means the Auto-off delay is
disabled.
General
Temperature Unit
Select either &deg;C (Centigrade) or &deg;F
(Fahrenheit) as the temperature unit.
Temperature Scale
Contains a list of standard temperature
scales.
Key Click Volume,
Alarm Volume,
Attention Volume,
Outside Span
Volume and,
Error Volume
Available options (apply to all volume
settings):
Off, Low, Medium and High.
Net Frequency
Options:
50 Hz and 60 Hz.
Note that wrong net frequency setting
affects the accuracy of MC2.
Owner
A text field for entering owner's name etc.
This data is shown in the Welcome Screen.
99
Utilities Menu
Notes.
All changes in general settings become valid immediately except
when changing the language. To activate the new language, shut off
and restart MC2.
Disable auto-off delay during long-time tasks (e.g. leak/stability test).
Otherwise the auto-off functionality interrupts the task.
When calibrator's Auto-off delay is in use (value other than zero), a
warning dialog pops up 30 seconds before the auto power off
executes. In the dialog the Function Keys have the following options:
F1/Cancel
Cancels the auto power off feature for the moment, but it stays
active even during this session.
F2/Stop
Disables the auto power off feature for this session. It will
reactivate when the calibrator is switched on the next time.
F3/Ok
Immediately shuts down the calibrator.
Calibrator Adjustment
Opens a window to start the recalibration and adjustment of MC2.
See Appendix 2 for instructions on how to recalibrate MC2.
1 6 .0 8 .2 0 0 7
0 9 :4 5 :2 2
C A L IB R A T O R A D J U S T M E N T
E n te r p a s s w o r d to e n a b le
*
c a lib r a to r a d ju s tm e n ts
In t. P re s s u re (IP M 2 0 C )
3 6 0
C a lib r a tio n P e r io d
B e a m e x
C a lib r a te d b y
E l. M e a s u r e
S to p
100
(E L -M E A S U R E )
C lo s e
MC2 User Guide
Calibrator Adjustment
Custom Test Point Sets
MC2 has a comprehensive set of pre-entered test point sets (steps).
If however they are not suited for your needs, you can create your
own test points as presented here.
Start the custom test point definition from one of the following utilities
found in generation/simulation functions' Tools menu:
•
•
Stepping presented on page 73 and
Manual Stepping presented on page 78.
One of the utilities' configuration fields is Step Definition combo.
The last option in the combo is Create New. It opens the custom
test point tool. If a custom set already exists, selecting it in the Step
Definition combo also opens the custom test point tool.
Give a name to the Custom test
point set. The Scaled Range
initially has the same range as
defined for the Stepping or Manual
Stepping from where the custom
test step definition was invoked.
You may edit the Scaled Range
according to you own needs during
step definition, e.g. scale the steps
to percentage values.
Enter the point values. Press down
arrow ( ) to add a point below the
last point.
E D IT T E S T P O IN T S E T
S e t N a m e
IN T
J u s t T e s t S e t
S c a le d R a n g e ( 0 % ... 1 0 0 % )
4 .0 0 0 0
... 2 0 .0 0 0 0
1 . 4 .0 0 0 0
0 %
2 . 6 .0 0 0 0
1 3 %
3 . 7 .5 0 0 0
C l o s e 5 . 9 6M e O n uu
2 2 %
tp u t S a v e
The F2/Menu Function Key opens a menu for editing the test point
rows or the whole set. Options:
•
•
•
Insert Row
Delete Row
Delete All Rows
• Copy Set
• Delete Set
The Insert Row option adds a point above the current point.
MC2 User Guide
101
Custom Test Point Sets
The F3/Ok Function Key saves the custom test point set and adds it
to the Define Steps combo list. It is located after all pre-entered test
point sets, before the Create New option.
To separate custom point sets from pre entered ones, custom point
sets are prefixed &quot;User:&quot; and the row ends with a chevron pointing
right &quot; &quot;. This indicates that the point set may be edited.
Hints!
The point values need not be in ascending order or even inside the
range limits.
To force MC2 to stay in one point for a longer time, enter the same
point value to several successive points.
Notes.
The step values are saved as floating point number percentage
values so the steps may be used for any Function and range. The
percentage values are proportioned to the current Stepping /
Manual Stepping range.
The percentage values shown to the right of the test points are
whole number near values of the entered values. They are for
information only.
The available free memory defines how many custom test points
may be saved. If there is not enough memory left to save a custom
test point set, MC2 displays an error message suggesting that you
first free some memory and then retry adding a custom test point
set.
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MC2 User Guide
Calibrator Adjustment
Custom Transfer
Functions
MC2 has a pre-entered set of standard transfer functions. If however
they do not suit your needs, you can create your own transfer
functions as presented here.
The custom transfer function definition can be started from the
following Display Modes (found in the Tools menu of measurement
functions):
•
•
•
Error % presented on page 82,
Error in Input Units presented on page 83 and
Error in Output Units presented on page 84.
And from the following Display Modes (always available in the
Tools menu):
•
•
Percentage presented on page 85 and
Scaling presented on page 86.
And also from the Tools menu of the following generation/simulation Function utilities:
•
•
Stepping presented on page 73 and
Manual Stepping presented on page 78.
One of the combos in all of the above mentioned utilities is called
Transfer Function. The last option in the combo is Create New. It
opens the custom transfer function tool. If a custom transfer function
already exists, selecting it in the Transfer Function combo also
opens the custom transfer function tool.
MC2 User Guide
103
Custom Transfer Functions
Give a name to the custom
transfer function.
The Input Range and Output
Range fields are scaled ranges for
the custom transfer function.
Default values are for percentage
scaling.
Enter Input/Output pair values in
ascending order. Press down
arrow
( )
to
add
more
Input/Output pairs below the last
Input/Output pair.
E D IT T R A N S F E R F U N C T IO N
IN T
T r a n s fe r F u n c tio n N a m e
In th e C a s e
In p u t R
0 % 0 .0 0
O u tp u t
0 % 0 .0 0
a n g e
1 0 0 %
0 0
R a n g e
1 0 0 %
0 0
In p u t
0 . 0 .0 0 0 0
C lo s e
1 0 0 .0 0 0
1 0 0 .0 0 0
O u tp u t
0 .0 0 0 0
M e O n uu t p u t S a v e
The F2/Menu Function Key opens a menu for editing the
Input/Output pairs or the whole set. Options:
Insert Row
Delete Row
Delete All Rows
Copy Set
Delete Set
The Insert Row option adds an Input/Output pair above the current
Input/Output pair. The new row has default values based on the
Input/Output pairs above and below it (calculated using linear
approximation).
The F3/Ok Function Key saves the custom transfer function and
adds it to the Transfer Function combo list. An inverted copy of
the custom transfer function is also added to the Transfer
Function combo list. The inverted transfer function has a &quot;x-1&quot;
symbol before its name. The custom transfer function and its
inverted copy are located after all pre-entered transfer functions but
before the Create New option.
To separate custom transfer functions from pre entered ones,
custom transfer functions are prefixed &quot;User:&quot; and the row ends with
a chevron pointing right &quot; &quot;. This indicates that the point set may be
edited.
Hint!
The maximum Input/Output pair values may be outside the ranges'
maximum values.
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MC2 User Guide
Calibrator Adjustment
Notes.
The Input/Output pairs are saved as floating point number
percentage values so the transfer function may be used for any
function and range. The percentage values are proportioned to the
current range.
The available free memory defines how many custom transfer
functions and Input/Output pairs may be saved. If there is not
enough memory left to save a custom transfer function, MC2
displays an error message suggesting that you first free some
memory and then retry adding a custom transfer function.
MC2 approximates the values between entered input/output pairs by
calculating a curve between a pair of points that connects smoothly
to the adjoining curve. The entered Input/Output pairs need to be
points of a strictly increasing function.
MC2 User Guide
105
Custom Pressure Units
Custom Pressure Units
MC2 has a comprehensive set of pre-entered pressure units. If
however they are not suited for your needs, you can create your own
custom pressure units.
To define custom pressure units, configure one of the Basic State's
windows (select F1/Setup or F2/Setup ) for pressure
measurement. While configuring, open the Unit combo and select
one of the &quot;User&quot; units. They can be found at the bottom of the list of
pressure units (as long as they are not in use and not selected to the
&quot;favorites&quot; list).
When selecting a user configurable unit, a window opens for
configuring the unit.
Saved custom pressure units can
be seen in the pressure unit list.
To separate them from pre
entered units, they are prefixed
&quot;User:&quot; and the row with a custom
pressure unit ends with a chevron
pointing right &quot; &quot;. This indicates
that the unit may be edited.
U S E R U N IT S E T T IN G S
U s e r U n it N a m e
F P N
F a c to r
7 .1 4
R e fe r e n c e U n it
P a
C a n c e l
O u tp u t
O k
Notes.
Make sure you do not run any tasks found in the Tools menu (e.g
Scaling) while editing a user defined unit. All Tools menu tasks
utilize the user defined unit as it was when starting the task.
To remove a Custom Pressure Unit, open it in User Unit Settings
window and clear User Unit Name field. Then press F3/Ok.
See also Part B, chapter Scaling.
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MC2 User Guide
Calibrator Adjustment
Related Information
Most of the measurements, generations and simulations presented
in this manual are straight forward: Just make the required window
settings and connect the instrument under test to the active
terminals and that's it!
Some cases require additional settings and things to check before
you can be certain that the measurement, generation or simulation
works as expected. A typical example of this is temperature
measurement using a thermocouple. It is not enough to select the
correct Function in MC2. The Sensor type and the Reference
Junction Mode has to be set accordingly, too. Wrong settings give
erroneous results.
Whenever this additional information may be of use in a
measurement, generation or simulation, text describing the Function
refers to one of the following chapters. An experienced may skip this
supplemental text, but for a beginner we highly recommend it.
The subjects described here are:
MC2 User Guide
Things to Consider when Measuring Pressure on page 108,
Pressure Type on page 108,
Pressure Modules and their Naming Conventions on
page 109,
Square Rooting on page 110,
Thermocouple Measurement/Simulation, Connections and
Troubleshooting on page 111,
Resistance and RTD Measurement, Connections on
page 116,
Current Measurement Parallel to a Test Diode, Connections
on page 118 and
Parallel Functions in MC2 on page 119.
107
Related Information
Things to Consider when Measuring Pressure
General
MC2 can measure pressure with its internal pressure module or with
external pressure modules. If a barometric module is present, the
measurement results of other modules can be shown either as
absolute pressure or as gauge pressure.
Pressure Type
Every pressure measurement is in fact a pressure difference
measurement: a given pressure value is compared against a
reference pressure. In certain cases the reference pressure has a
special meaning (like the atmospheric pressure) and the pressure
measurements with reference to against these points are given a
special name:
•
•
•
•
Absolute pressure measurement uses vacuum as the
reference pressure.
Barometric pressure (or atmospheric pressure) is the
absolute pressure of the surrounding atmosphere. It is
specially titled because of its importance.
Gauge pressure measurement uses the atmospheric
pressure as the reference. Gauge pressure may be zero,
negative or positive. Most of MC2's pressure modules actually
measure gauge pressure although they may be used for
measuring other pressure types too.
Differential pressure measurement requires a special
differential pressure module that has an input available for
both the reference pressure and the given pressure.
To be able to measure absolute pressure with MC2's gauge
pressure modules, you need a barometric pressure module. Certain
high pressure modules may approximate absolute pressure
measurement by adding an entered barometric pressure to the
measured gauge pressure.
MC2 may use two standard pressure modules to measure (pseudo)
differential pressure: One module measures the reference pressure
and another the given pressure. The pressure difference is
calculated by subtracting the reference pressure from the given
pressure. More of this in Part B, chapter Display Mode and Special
Measurements.
Always ensure that the pressure type setting of your pressure
measurement is what you intended it to be. The pressure type
setting is crucial for getting meaningful pressure measurement
results.
108
MC2 User Guide
Things to Consider when Measuring Pressure
Pressure Modules and their Naming Conventions
MC2's software refer to pressure modules as follows:
IPM200mC
which means that there is an internal pressure module installed with
a -200 to +200 mbar (-3 to +3 psi) pressure range.
The names of MC2's internal pressure modules start with the letters
IPM. The names also include numbers and possible additional
letters as follows:
•
•
•
The number defines the max. nominal pressure in the SI
pressure unit bar.
If the number is followed by a small &quot;m&quot;, the given max. nominal
pressure is given in mbar.
The additional letter C means the pressure module is a
compound module with an ability to also measure negative
gauge pressures.
Examples:
Name
IPM200mC
IPM20C
IPM160
Measurement range
&plusmn;200 mbar
-1 I 20 bar
0 I 160 bar
in psi
&plusmn;3
-14.5 I 300
0 I 2400
Notes.
Compound modules with a max. nominal pressure above 1 bar (e.g.
IPM20C) are able to measure negative pressures down to -1 bar.
Compound modules with a max. nominal pressure below 1 bar (e.g.
IPM200mC) are only able to measure as deep negative pressures
as positive pressures.
External pressure modules have a naming convention that is similar
to internal ones.
MC2 User Guide
109
Related Information
Square Rooting
Pressure transmitters or converters used for flow measurement often
have square rooting character. Here are a couple of examples on
how you can configure MC2 to take into account the instrument's
square rooting character:
1. Set the Display Mode of window that measures the
instrument's output signal to Error Percentage and make sure
the Transfer Function field is set to Square Rooting (√x).
2. Use Scaling to convert the instrument's output signal to a
suitable format and again, make sure the Transfer Function
field is set to Square Rooting (√x).
Display Modes as well as scaling is discussed in chapter Tools
Menu in part B of this User Guide.
110
MC2 User Guide
Thermocouple Measurement/Simulation, Connections and Troubleshooting
Thermocouple Measurement/Simulation, Connections and
Troubleshooting
To accurately measure the thermovoltage caused by the
temperature to be measured, the second thermovoltage caused by
the Reference Junction needs to be compensated. This is done
using one of the Reference Junction compensation methods
described in the subsequent chapters.
The Reference Junction compensation method has to be chosen
both when measuring and simulating thermocouples.
Internal Reference Junction
MC2's Internal Reference Junction makes thermocouple
measurement/simulation easy. No external connections are
required, just connect the thermocouple or a thermovoltage receiver
directly to MC2's &quot;T/C&quot; terminals. To select this compensation
method, set the window's Function to field &quot;T/C Sensor
Measurement&quot; or &quot;T/C Sensor Simulation&quot;, make sure the Unit
is a temperature unit and set the RJ Mode field to &quot;Internal&quot;.
Connection when measuring/simulating thermocouples using
Internal Reference Junction Mode:
T /C m a te r ia ls
( T /C , e x te n s io n o r
c o m p e n s a tio n w ir e s )
T e m p e r a t u r e /
T /C s e n s o r
o r a
T /C s ig n a l r e c e iv e r
T / C
m V
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
R
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
Refer to the Technical Data in Appendix 1 for specifications
concerning the Internal Reference Junction.
See also5
External Reference Junction on page 112
MC2 User Guide
111
Related Information
External Reference Junction
When using an external Reference Junction, MC2 measures or
simulates the thermovoltage using the &quot;T/C&quot; terminals. The following
external Reference Junction compensation methods are available:
External RTD:
To be used when:
•
The Reference Junction temperature is measured using an
RTD sensor connected to MC2's RTD terminals.
Connection when measuring/simulating thermocouples using
Reference Junction compensation method &quot;External RTD&quot;:
T /C
C o p p e r
m a te r ia ls
T
re f
T e m p e r a t u r e /
T /C s e n s o r
o r a
T /C s ig n a l r e c e iv e r
T / C
m V
R
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
M
m e a s
s e n s e
, 3 0
V
e a s u r e
V , I,
, 1 0 0
m A
Warning!
If you connect an RTD sensor to the RTD connectors, there is no
galvanic isolation between the thermocouple and the RTD
sensor.
None (0 &deg;C):
To be used when:
•
•
•
•
112
The Reference Junction temperature is fixed to 0&deg;C (using,
e.g. ice) and MC2 is not used for measuring the Reference
Junction temperature.
The Reference Junction temperature is controlled with 0 &deg;C
set point.
A compensation box is used and the Reference Junction
temperature setting is 0 &deg;C.
There is no Reference Junction compensation in the
measuring/simulation circuit but 0 &deg;C is a good enough
approximation.
MC2 User Guide
Thermocouple Measurement/Simulation, Connections and Troubleshooting
Manually Entered:
Usable when:
•
•
•
•
The Reference Junction temperature is fixed to a
temperature that differs from 0 &deg;C.
The Reference Junction temperature is controlled and the
controller's set point is not 0 &deg;C. Note: this method is of use
only if the accuracy of the controller is better than MC2's own
Reference Junction.
A compensation box is used and the Reference Junction
temperature setting is other than 0 &deg;C.
There is no Reference Junction compensation in the
measuring/simulation circuit, but you want to manually enter
another Reference Junction temperature than 0 &deg;C.
Connection when measuring/simulating thermovoltages using a
temperature controller and either of the following Reference
Junction compensation methods:
&quot;Manually Entered&quot; or &quot;None (0 &deg;C)&quot;:
T e m p e ra tu re
C o n tr o lle r
T re f
C o p p e r
T /C m a te r ia ls
T /C s e n s o r
o r a
T /C s ig n a l r e c e iv e r
T e m p e r a t u r e /
T / C
m V
MC2 User Guide
R
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
113
Related Information
Connection when measuring/simulating thermovoltages using a
fixed temperature and either of the following Reference
Junction compensation methods:
&quot;Manually Entered&quot; or &quot;None (0 &deg;C)&quot;:
T /C
m a te r ia ls
C o p p e r
T re f
T e m p e r a t u r e /
T /C s e n s o r
o r a
T /C s ig n a l r e c e iv e r
T / C
m V
G e n e r a t e
R
a x 6 0
V
e a s u r e
V , I,
m e a s
s e n s e
R , R T D
V , I,
M
M
, 3 0
V
, 1 0 0
m A
Connection when measuring/simulating thermovoltages using a
compensation box and either of the following Reference
Junction compensation methods:
&quot;Manually Entered&quot; or &quot;None (0 &deg;C)&quot;:
T /C m a te r ia ls
t
C o p p e r
T /C s e n s o r
o r a
T /C s ig n a l r e c e iv e r
T e m p e r a t u r e /
T / C
m V
R
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
See also5
Internal Reference Junction on page 111
114
MC2 User Guide
Thermocouple Measurement/Simulation, Connections and Troubleshooting
Error situations
The easiest way to avoid errors in thermocouple measurement and
simulation is to check carefully the used wiring and the Reference
Junction mode. The following table describes the typical error
situations and possible causes/corrections when working with
thermocouples:
PROBLEM
CAUSE
MC2 (or the instrument under test
when simulating thermovoltages)
measures the temperature/millivolt
signal, but the displayed
temperature reading is all wrong.
(The error may vary from 0 to
about &plusmn;50 &deg;C depending on the
type of the error)
•
MC2 (or the instrument under test)
displays random readings during
thermocouple measurement.
•
MC2 displays unstable readings
during thermocouple simulation.
•
MC2 User Guide
The thermocouple type selected in MC2
does not correspond with the used
thermocouple.
• The selected Reference Junction mode
is not in accordance with the used wiring.
• Extension or compensation cable type or
connections are incorrect.
• The polarity of the cables are incorrect.
Incorrect connections.
• The wiring is broken.
• Interference from a mobile phone or a
radio transmitter affects the
measurement.
The instrument to be calibrated uses
voltage pulses to detect an open sensor.
When MC2 detects these pulses, it tries
to compensate for them, which causes
the unstable output. Prevent these
pulses for the time of calibration. Refer to
the service manual of the instrument to
be calibrated on how to prevent these
open sensor detection pulses.
115
Related Information
Resistance and RTD Measurement, Connections
The two main problems in resistance and RTD measurement are the
effects of wiring resistances and thermovoltages in the resistance
measurement circuit. If possible, use 4-wire connection to eliminate
the effect of wiring resistance. The special resistance measurement
sequence of MC2 eliminates the thermovoltages of the resistance
measurement circuit.
MC2 continuously checks the connection type during resistance and
RTD measurement. The found connection type is displayed on the
resistance or RTD measurement window.
4-wire System
When 4-wire system is used, MC2
displays the symbol shown on the
left.
MC2 sources current through the
resistor from the two left side
terminals. MC2 measures the
voltage drop across the resistor
from the two right side terminals.
The 4-wire method gives the
resistance between the terminals
of the resistor, it is insensitive to
the resistance of the connection
wires.
T e m p e r a t u r e /
T / C
m V
G e n e r a t e
R , R T D
V , I,
M
a x 6 0
R
V
M
e a s u r e
V , I,
m e a s
s e n s e
, 3 0
V
, 1 0 0
m A
3-wire System
When 3-wire system is used, MC2
displays the symbol shown on the
left.
MC2 sources current through the
resistor from the two left side
terminals. MC2 measures the
voltage drop across the entire
current loop and across the low
side connection wire. If both left
side connection wires are
identical, MC2 can compensate
for the resistance of the
connection wires.
116
T e m p e r a t u r e /
T / C
m V
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
R
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
MC2 User Guide
Resistance and RTD Measurement, Connections
Using a Compensation Loop
When the compensation loop
wiring system is used, MC2
displays the symbol shown on the
left.
MC2 sources current through the
resistor and the compensation
loop from the two left side
terminals. MC2 measures the
voltage drop across the entire
current loop and across the
compensation loop.
T e m p e r a t u r e /
T / C
m V
G e n e r a t e
R , R T D
V , I,
M
a x 6 0
R
V
M
e a s u r e
V , I,
m e a s
s e n s e
, 3 0
V
, 1 0 0
m A
If the compensation loop and the connection wires of the resistor are
identical, MC2 can compensate for the resistance of the connection
wires.
2-wire System
When 2-wire system is used, MC2
displays the symbol shown on the
left.
Calibrator sources current through
the resistor and measures the
voltage drop across the same
terminals.
The result is acceptable, if the
resistance of the connection wires
is significantly smaller than actual
measured resistance.
T e m p e r a t u r e /
T / C
m V
R , R T D
V , I,
M
a x 6 0
G e n e r a t e
V
R
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
Hint!
To minimize the effect of connection wires in 2-wire system
measurement, use deviation measurement presented on page 87 as
follows:
Measure the resistance of only the connection wires. Set the
measured value as the Measure Deviation from value. Then the
resistance of the connection wires is subtracted from the total
resistance and the displayed deviation value is closer to the
resistance meant to be measured.
MC2 User Guide
117
Related Information
Current Measurement Parallel to a Test Diode, Connections
The impedance of MC2's milliampere input is low enough to enable
current measurement parallel to a test diode in a 20 mA circuit.
Plus Side Test
Diode
Connections:
T e m p e r a t u r e /
T / C
m V
R
R , R T D
V , I,
M
a x 6 0
V
e a s u r e
V , I,
m e a s
s e n s e
, 3 0
V
, 1 0 0
m A
P o w e r
S u p p ly
I
T e m p e r a t u r e /
R , R T D
V , I,
T / C
m V
M
In p u t
S ig n a l
M
X
In p u t
S ig n a l
Minus Side Test
Diode
Connections:
G e n e r a t e
X
I
a x 6 0
G e n e r a t e
V
R
M
V , I,
m e a s
s e n s e
, 3 0
V
e a s u r e
, 1 0 0
m A
P o w e r
S u p p ly
MC2 parallels the test diode of the transmitter and measures the
externally supplied output current of the transmitter.
Notes.
In higher temperatures: The leakage of the diode in the instrument
may affect the accuracy.
118
MC2 User Guide
Parallel Functions in MC2
Parallel Functions in MC2
This chapter explains what kind of simultaneous duties MC2 can do.
All of the following tasks may run independently, but the window
settings decide what is shown:
Each internal or external pressure measurement runs
independently.
One electrical measurement in the Measure terminals.
One electrical measurement and one electrical generation/simulation in the Temperature / Generate terminals.
Additionally, all of the connectors on the left side of MC2 may have
an independent task.
Notes.
The Barometric module can always be used for pressure type
conversion, even if it is already active in any window.
See Part D, Calibration, chapter Supported Input/Output Signal
Combinations for additional info on which Functions may
simultaneously be active during instrument calibration .
MC2 User Guide
119
Related Information
(Empty)
120
MC2 User Guide
Calibration
Things discussed in Part D:
• General presentation of what calibration is and the phases of a
typical calibration procedure.
• A description of a calibration
procedure using MC2.
• Some application examples on
how to perform the calibration of
certain instruments.
General
General
MC2 is a stand-alone calibrator. All calibration results are manually
entered either to a paper document or to a calibration software capable of making printed calibration certificates.
122
MC2 User Guide
Phases of Instrument Calibration
Phases of Instrument Calibration
S ta rt
A s F o u n d te s t
S a v e A s
F o u n d r e s u lts
n o
N o . o f
re p e a ts
d o n e ?
y e s
n o
A d ju s tm e n t
r e q u ir e d ?
y e s
A d ju s tm e n t
n o *
W ith in
lim its ?
y e s
* If it is n o t p o s s ib le
to a d ju s t th e
m a x im u m e r r o r
b e lo w th e r e je c t
lim it, c o n s id e r
r e p la c in g th e
in s tr u m e n t w ith
a m o re a c c u ra te
o n e .
A s L e ft te s t
S a v e A s L e ft
r e s u lts
n o
N o . o f
re p e a ts
d o n e ?
y e s
E n d
The picture gives a general view of the phases in a typical calibration
procedure.
MC2 User Guide
123
General
As Found Calibration
The As Found calibration documents the state of the instrument before carrying out any adjustments. The calibration specifies the
amount of drift in the instrument during the calibration period.
Below is an example of an error graph. It is used for evaluating the
instrument.
E rro r
0
0
2 5
5 0
7 5
1 0 0 %
Adjustment
If the found error is outside acceptable limits (reject limits), the instrument needs adjustment. Activate one of MC2's error display
modes to help you minimize the error (see chapter Tools Menu in
part B).
Use the instrument's ZERO adjustment at lower end of the range.
Adjust the higher end of the range with the instrument's SPAN adjustment. The two adjustment points do not necessarily need to be
the end points of the instrument range. You may want to use other
points to optimize the calibration at the most important part of the
range. Note, however, that if the points are very close to each other,
the error at other points of the range may be quite big (see As Left
Calibration on next page).
E rro r
S P A N
0
Z E R O
0
124
2 5
5 0
7 5
1 0 0 %
MC2 User Guide
Phases of Instrument Calibration
As Left Calibration
The As Left calibration document the state of the instrument after the
possible adjustment. If the As Found calibration proves to be good
and no adjustment is needed, you may omit the As Left calibration.
E rro r
E rro r
0
0
0
2 5
5 0
7 5
1 0 0 %
0
2 5
5 0
7 5
1 0 0 %
The pictures above display different As Left calibration graphs after
two different kinds of adjustments.
In the leftmost picture, the error is minimized at the end points of the
instrument range. This results in a relatively notable error in the middle of the span. If the middle of the span is the area, where the
measurement is usually situated, then this method is not recommended.
The rightmost picture displays the error graph when the maximum
error is minimized by &quot;lowering the graph&quot;. As a result, the error minimum is at approx. 30 % and 70 % of the span.
Note that these adjustment strategies are just examples. There is an
unlimited amount of &quot;correct&quot; ways to adjust an instrument.
MC2 User Guide
125
Calibrating an Instrument
Calibrating an Instrument
A Calibration Procedure Using MC2
The most convenient way to calibrate instruments with MC2 is using
one of the error display modes described in chapter Tools Menu
presented on page 67.
The picture above is an example where a pressure transmitter is calibrated using error percentage display mode for the output current.
The additional info row displays the actual output current of the instrument. Another useful method, especially while adjusting the instrument, is displaying the error bar graph in the additional info row.
A typical calibration procedure using MC2 is as follows:
1. Make the required connections, configure MC2's windows to
suit the needs of the instrument
2. Test the instrument, connections and calibrator settings by altering the instrument's input signal.
3. Start the calibration run by setting the instrument's input signal to a level needed for the first calibration point. Record the
input and output signals and also the error value, if applicable.
Advance to next calibration point.
4. When all points are done, do another repeat if needed or if
adjust the instrument, if that is required.
5. When all repeats/adjustments are done, the calibration is
ready.
126
MC2 User Guide
Examples of Instrument Calibration
Examples of Instrument Calibration
The following pages contain a few examples of how to calibrate an
instrument using MC2.
When uncertain, consult Part B of this manual for information on how
to connect instruments and configure the windows of MC2 to suit the
instrument's needs.
The following calibration examples are presented in this manual:
•
Pressure Transmitters on page 128,
•
Temperature Indicators and Recorders on page 130,
•
Electrical Limit Switches on page 132,
•
Temperature Sensors on page 134 and
•
Pneumatic Pressure Transmitters and Converters on page
136.
Warning!
Working with pressure instruments can be hazardous. Only
qualified personnel may use pressure instruments and pressure sources. See pressure measurement related warnings in
Part A of this manual.
MC2 User Guide
127
Calibrating an Instrument
Pressure Transmitters
This procedure suits all instruments with a pressure input and any
kind of electrical output signal. Both the input and output signal
range should be measurable with MC2.
All MC2 models (MC2-TE equipped with an external pressure module) are capable of calibrating a pressure transmitter.
Preparations
1. Connect the instrument's input to the selected pressure module (internal or external).
2. Connect a pressure source both to the instrument's input and
to the pressure module.
3. Connect the instrument's output signal to the terminals in
MC2.
4. Configure one of MC2's windows to measure pressure and
the other to measure the electrical output signal of the instrument. If the output signal is current, select whether MC2 provides the supply voltage or not (see Current Measurement in
Part B).
5. Test the connections.
E X T
M C 2 -P E
P re s s .
S o u rc e
P re s s .
S o u rc e
P
P
E
128
M C 2 -M F &amp;
(M C 2 -T E )
E X T
E
MC2 User Guide
Examples of Instrument Calibration
Calibration
1. Set the pressure using, e.g. a pressure pump.
2. Record the input and output signals and also the error value,
if applicable.
3. Proceed to next calibration point (step 1) if applicable.
4. Continue by either adjusting the instrument, starting another
Hint!
These instructions can be can be adapted for any kind of transmitters. Change the input signal connections/settings according to the
instruments input signal.
When calibrating another kind of pressure instrument, use this example as the source for the input signal part.
MC2 User Guide
129
Calibrating an Instrument
Temperature Indicators and Recorders
This procedure suits temperature indicators/recorders no matter if
the sensor is an RTD or a thermocouple. The instruments input signal is simulated using MC2.
MC2-TE and MC2-MF models are capable of calibrating temperature
indicators and recorders.
Preparations
1. Connect suitable terminals in MC2 to the input connectors of
the indicator/recorder.
2. If the sensor to be simulated is a thermocouple, select one of
the following reference junction methods:
•
•
•
•
MC2's internal reference junction is used.
The reference junction temperature is measured externally using an RTD connected to the RTD terminals.
The reference junction temperature is fixed to 0 &deg;C.
The reference junction temperature is manually entered.
Additional information about Reference Junction compensation methods can be found in chapters
Internal Reference Junction on page 111 and
External Reference Junction on page 112.
3. If the sensor to be simulated is an RTD, the used
wiring system depends on
the instrument to be calibrated. Remember to only
use the two leftmost RTD
terminals in MC2.
6. Configure one of MC2's
windows to simulate temperature (T/C Sensor
Simulation or RTD Sensor Simulation). Test the
connections.
130
MC2 User Guide
Examples of Instrument Calibration
Calibration
1. Enter the temperature to be simulated There are two different
strategies on how to set the temperature:
•
Adjust the simulated value until the reading of the indicator/recorder is exactly the same as the default output
value for the current calibration point. This method is
useful when calibrating analog indicators/recorders and
the input signal can be fine adjusted.
•
Do not adjust the simulated value, but enter the actual
reading as the output value. This method suits indicators with digital display. It is also handy when calibrating other types of indicators/recorders with an input
signal that do not support fine adjustment (e.g. pressure indicators).
2. Record the input signal and output reading/display.
3. Proceed to next calibration point (step 1) if applicable.
4. Continue by either adjusting the instrument, starting another
calibration repeat or ending the calibration.
Hint!
These instructions can be adapted for any kind of indicator/recorder.
Change the input signal connections/settings according to the instrument's input signal.
When calibrating a temperature instrument with a detachable sensor
(the input signal is simulated with MC2), use this example as the
source for the input signal part.
MC2 User Guide
131
Calibrating an Instrument
Electrical Limit Switches
This procedure suits limit switches with an electrical input. MC2 generates the switch's input signal and measures the switch's state.
MC2-TE and MC2-MF models are capable of calibrating electrical
limit switches.
Preparations
1. Connect the instrument's input to MC2's output terminals (see
picture).
2. Connect the switch's output to the measuring terminals in MC2.
3. Configure one of MC2's
windows to generate the
electrical signal and the
other to measure the
switch's output.
4. Test the connections.
132
MC2 User Guide
Examples of Instrument Calibration
Calibration
1. Slowly increase the instrument's input signal until the switch
actuates. See part B for help on how to change the generated
value. The extra info row of the window configured to measure the switch's state displays the actuation point.
2. Continue by decreasing the input signal until the switch deactuates. The deactuation point is also displayed on the extra info row.
3. Record the actuation and the deactuation point.
4. Redo the test (step 1) if applicable.
5. Continue by either adjusting the instrument, starting another
calibration repeat or ending the calibration
Note.
The slower you raise the input signal, the more accurate the observed actuation point is. Be equally careful when decreasing the input signal in order to get as accurate deactuation point as possible.
Hint!
These instructions can be can be adapted for any kind of switches.
Change the input signal connections/settings according to the instruments input signal.
When calibrating an electrical instrument and the input signal is generated with MC2, use this example as the source for the input signal
part.
MC2 User Guide
133
Calibrating an Instrument
Temperature Sensors
This procedure suits temperature sensors no matter if they are RTDs
or thermocouples. The sensor's output signal is measured with MC2.
The reference temperature also measured with MC2.
MC2-TE and MC2-MF models are capable of calibrating a temperature sensors .
Remember the following conditions:
• If the sensor to be calibrated is a thermocouple, the reference
thermometer needs to be an RTD sensor.
• If the sensor to be calibrated is an RTD sensor, the reference
thermometer needs to be a thermocouple.
Preparations
1. Place the sensor of the instrument and the reference sensor
into the calibration bath/dry block. Connect them to suitable
terminals in MC2. Select one of the available reference junction methods for the thermocouple:
•
•
•
•
MC2's internal reference junction is used.
The reference junction temperature is fixed to 0 &deg;C.
The reference junction temperature is manually entered.
The reference junction temperature is measured externally using an RTD connected to the RTD terminals.
See Part C for additional information concerning the
reference junction methods.
2. Configure one of MC2's
windows to measure T/C
temperature and the other
to measure RTD temperature.
3. Test the connections.
134
MC2 User Guide
Examples of Instrument Calibration
Calibration
1. Set the temperature of the bath/dry block to the required calibration point. Wait until the temperature stabilizes.
2. Record the input and output signals and also the error value,
if applicable.
3. Proceed to next calibration point (step 1) if applicable.
4. Continue by either adjusting the instrument, starting another
calibration repeat or ending the calibration.
Hint!
If one of the sensors cannot be detached from its transmitter, connect the transmitter's output signal to MC2's measuring terminals
and use one of the error display modes to convert the (standard)
output signal to a more usable format. See Part B for additional information concerning display modes.
MC2 User Guide
135
Calibrating an Instrument
Pneumatic Pressure Transmitters and Converters
This procedure suits all instruments with both a pressure input and a
pressure output signal. Both the input and output signal range
should be measurable with MC2.
To be able to perform the calibration, an internal pressure module
need to be installed and an external pressure module need also be
connected to MC2. The example picture below has the instrument's
input connected to the internal pressure module and the instrument's
output connected to the external pressure module. The pressure
modules may also be used the other way. All that matters is that the
pressure module's span and accuracy suits the pressure signal.
MC2-PE and MC2-MF models are capable of calibrating a pneumatic pressure transmitter/converter.
Preparations
1. Connect the instrument's input to the selected pressure module (internal or external).
2. Connect a pressure source both to the instrument's input and
to the pressure module.
3. Connect the instrument's
output to the selected
pressure module (internal
or external).
4. Configure one of MC2's
windows to measure the
input pressure and the
other to measure the output pressure .
E X T
5. Test the connections.
P re s s .
S o u rc e
P
P
136
MC2 User Guide
Examples of Instrument Calibration
Calibration
1. Set the pressure using, e.g. a pressure pump.
2. Record the input and output signals and also the error value,
if applicable.
3. Proceed to next calibration point (step 1) if applicable.
4. Continue by either adjusting the instrument, starting another
calibration repeat or ending the calibration.
MC2 User Guide
137
Calibrating an Instrument
(Empty)
138
MC2 User Guide
Appendixes
Appendix 1
Technical Data ........................ 140
Appendix 2
Index ........................................ 158
Appendix 1, Technical Data
Appendix 1, Technical
Data
MC2 General Specifications
140
Feature
Specification
Display
60 mm x 60 mm (2.36&quot; x 2.36&quot;),
160 x 160 pixels, back lit LCD
Weight
720 ... 830 g (1.59 ... 1.83 lbs), depending on
model and installed pressure modules.
Dimensions
215 mm (8.5&quot;) x 102 mm (4&quot;) x 49 mm (1.9&quot;)
(d/w/h)
Keyboard
Membrane keyboard
Battery type
Rechargeable NiMH, 4000 mAh, 3.6 VDC
Charging time
5 hours, with no load
Charger supply
100...240 VAC, 50-60 Hz
Battery operation
13 5 24 hours in measurement mode,
backlight off.
8 5 12 hours when sourcing an average of 12
mA to loop, with backlight on.
5 with optional Dry Battery
cartridge and 4 Alkaline AA
cells.
4 hours in measurement mode, backlight off.
2.5 hours when sourcing an average of 12 mA
to loop, with backlight on.
Operating temperature
-10...50&deg;C (14...122&deg;F)
Operating temperature
while charging batteries
0 5 35&deg;C (32...95&deg;F)
Storage temperature
-20 to 60&deg;C (-4 to 140&deg;F)
Humidity
0 to 80% R.H. non condensing
Warmup time
Specifications valid after a 5 minute warmup
period.
Max. input voltage
30 V AC, 60 V DC
Safety
Directive 73/23/EEC, EN 61010-1
EMC
Directive 89/336/EEC, EN 61326
MC2 User Guide
Appendix 1, Technical Data
Pressure Modules
Internal Pressure Modules (IPM)
Module(3
Unit
IPM200mC
kPa
mbar
iwc
IPM2C
IPM20C
IPM160
Range(2
Resolution
1 Year Uncertainty(1
&plusmn;20
&plusmn;200
&plusmn;80
0.001
0.01
0.01
kPa
bar
psi
-100 ... 200
-1 ... 2
-14.5 ... 30
0.01
0.0001
0.001
0.05% FS
kPa
bar
psi
-100 ... 2000
-1 ... 20
-14.5 ... 300
0.1
0.001
0.01
0.05% FS
0 ... 16
0 ... 160
0 ... 2400
0.001
0.01
0.1
0.05% FS
MPa
bar
psi
0.05% RDG + 0.05% FS
Term ’FS’:
'FS' is the Full Scale of the positive side range. E.g. for &plusmn;200 mbar module, the Full Scale is 200 mbar.
Barometric option:
Enables also absolute pressure measurement for above pressure inputs. With barometric option add 0.1
kPa (0.0146 psi) uncertainty for absolute pressure measurement.
1)
2)
3)
Feature
Specification
Temperature coefficient
&lt; &plusmn;0.001 % RDG /&deg;C outside 15 5 35 &deg;C.
&lt; &plusmn;0.0006 % RDG /&deg;F outside 59 5 95 &deg;F
Maximum overpressure
Barometric Option: 1200 mbar abs
Others: 2 &times; Range
Pressure port
Barometric option:
M5 (10/32&quot;) female
IPM200mC, IPM2C and IPM20C:
G 1/8” female with G 1/8 (ISO 228/1) 60&deg; internal cone adapter
INT 160:
G 1/8” female (parallel )
Media compatibility
Wetted parts: AISI316 stainless steel, Nitrile rubber.
Use of pressure media classified as dangerous is prohibited.
Supported pressure units
Pa, hPa, kPa, MPa, mbar, bar, lbf/ft2, psi, osi, gf/cm2, kgf/cm2,
kgf/m2, kp/cm2, at, mmH2O, cmH2O, mH2O, iwc, ftH2O, mmHg,
cmHg, mHg, inHg, mmHg(0&deg;C), inHg(0&deg;C), mmH2O(4&deg;C),
inH2O(4&deg;C), ftH2O(4&deg;C), inH2O(60&deg;F), mmH2O(68&deg;F),
inH2O(68&deg;F), ftH2O(68&deg;F), torr, atm and
user configurable units
Display update rate
2.5 / second
(35.4 inHg abs)
Uncertainty includes reference standard uncertainty, hysteresis, non-linearity, repeatability and typical long term
stability for mentioned period (k=2).
Every internal/external pressure module’s range may be displayed also in absolute pressure if the Barometric
Module (B) is installed.
MC2 Calibrator can hold one internal pressure module and the optional internal barometric module.
MC2 User Guide
141
Appendix 1, Technical Data
External Pressure Modules (EXT), High Accuracy
Module
Unit
Range 3)
Resolution
Accuracy 1) (&plusmn;)
1 Year Uncertainty 2) (&plusmn;)
EXT B
kPa a
mbar a
psi a
80 to 120
800 to 1200
11.6 to 17.4
0.01
0.1
0.001
0.03 kPa
0.3 mbar
0.0044 psi
0.05 kPa
0.5 mbar
0.0073 psi
EXT10mD
kPa diff
mbar diff
iwc diff
&plusmn;1
&plusmn; 10 mbar diff
&plusmn;4
0.001
0.05 % Span
(Span = 20mbar)
0.05 % Span + 0.1 % RDG
kPa
mbar
iwc
0 to 10
0 to 100
0 to 40
0.0001
0.001
0.001
0.015 % FS + 0.0125 % RDG
0.025 % FS + 0.025% RDG
kPa
mbar
iwc
&plusmn; 40
&plusmn; 400
&plusmn; 160
0.001
0.01
0.001
0.01 % FS + 0.0125 % RDG
0.02 % FS + 0.025% RDG
kPa
bar
psi
&plusmn; 100
&plusmn;1
-14.5 to 15
0.001
0.00001
0.0001
0.007 % FS + 0.0125 % RDG
0.015 % FS + 0.025% RDG
kPa
bar
psi
-100 to 200
-1 to 2
-14.5 to 30
0.001
0.00001
0.0001
0.005 % FS + 0.01 % RDG
0.01 % FS + 0.025% RDG
kPa
bar
psi
-100 to 600
-1 to 6
-14.5 to 90
0.01
0.0001
0.001
0.005 % FS + 0.01 % RDG
0.01 % FS + 0.025% RDG
kPa
bar
psi
-100 to 2000
-1 to 20
-14.5 to 300
0.01
0.0001
0.001
0.005 % FS + 0.01 % RDG
0.01 % FS + 0.025% RDG
kPa
bar
psi
0 to 6000
0 to 60
0 to 900
0.1
0.001
0.01
0.005 % FS + 0.0125 % RDG
0.01 % FS + 0.025% RDG
MPa
bar
psi
0 to 10
0 to 100
0 to 1500
0.0001
0.001
0.01
0.005 % FS + 0.0125 % RDG
0.01 % FS + 0.025% RDG
MPa
bar
psi
0 to 16
0 to 160
0 to 2400
0.0001
0.001
0.01
0.005 % FS + 0.0125 % RDG
0.01 % FS + 0.025% RDG
MPa
bar
psi
0 to 25
0 to 250
0 to 3700
0.001
0.01
0.1
0.007 % FS + 0.0125 % RDG
0.015 % FS + 0.025% RDG
MPa
bar
psi
0 to 60
0 to 600
0 to 9000
0.001
0.01
0.1
0.007 % FS + 0.01 % RDG
0.015 % FS + 0.025% RDG
MPa
bar
psi
0 to 100
0 to 1000
0 to 15000
0.001
0.01
0.1
0.007 % FS + 0.01 % RDG
0.015 % FS + 0.025% RDG
EXT100m
EXT400mC
EXT1C
EXT2C
EXT6C
EXT20C
EXT60
EXT100
EXT160
EXT250
EXT600
EXT1000
Term ’FS’:
'FS' is the Full Scale of the positive side range. E.g. for &plusmn;200 mbar module, the Full Scale is 200 mbar.
1)
2)
3)
Accuracy includes hysteresis, nonlinearity, repeatability and reference standard uncertainty (k=2).
1 Year Uncertainty includes hysteresis, nonlinearity, repeatability and typical long term stability for mentioned
period (k=2).
Every internal/external pressure module’s range may be displayed also in absolute pressure if the Barometric
Module (B) is installed.
142
MC2 User Guide
Appendix 1, Technical Data
Feature
Specification
Temperature coefficient
EXT10mD:
&lt; &plusmn;0.002 % Span/&deg;C outside 15 5 35 &deg;C (595 95 &deg;F)
All other modules:
&lt;&plusmn;0.001 % Rdg/&deg;C outside 15 5 35 &deg;C (595 95 &deg;F)
Maximum overpressure
See table below
Pressure port
EXT B:
M5 (10/32&quot;) female
EXT10mD:
Two M5 (10/32”) female threads.
Hose nipples for hoses with an inner diameter of
approx. 3.2 mm (1/8&quot;) included. Hose included.
EXT100m, EXT400mC, EXT1C, EXT2C, EXT6C, EXT20C:
G1/8” (ISO228/1) female. A conical 1/8” BSP male with
60&deg; internal cone adapter included for Beamex hose set.
EXT60 to EXT1000
G &frac14;” (ISO228/1) male
Wetted parts
AISI316 stainless steel, Hastelloy, Nitrile rubber.
Pressure media
EXT B to EXT 6C:
Dry clean air or other clean, inert, non-toxic,
non-corrosive gases
EXT60 to EXT1000:
Clean, inert, non-toxic, non-corrosive gases or liquids
Use of pressure media classified as dangerous is prohibited.
Dimensions,
length / width / depth
145 mm / 45 mm / 55 mm
(5.7&quot; / 1.8&quot; / 2.2&quot;)
Weight
0.5 kg
Operating temperature
-105+50&deg;C
(145122 &deg;F)
Storage temperature
-205+60&deg;C
(-45140 &deg;F)
Humidity range
0580 % R.H. non-condensing
(1.1 lb)
Module
Maximum overpressure
Module
Maximum overpressure
EXT B
1200 mbar abs
35.4 inHg abs
EXT20C
40 bar
600 psi
EXT10mD
200 mbar
80 iwc
EXT60
120 bar
1800 psi
EXT100m
200 mbar
80 iwc
EXT100
200 bar
3000 psi
EXT400mC
800 mbar
320 iwc
EXT160
320 bar
4800 psi
EXT1C
2 bar
30 psi
EXT250
500 bar
7400 psi
EXT2C
4 bar
60 psi
EXT600
900 bar
13000 psi
EXT6C
12 bar
180 psi
EXT1000
1000 bar
15000 psi
Note.
The sensor unit of EXT1000/EXT1000-IS withstands 10000 full range pressure cycles.
Exceeding the maximum amount of pressure cycles may result in leakage or even explosion.
MC2 User Guide
143
Appendix 1, Technical Data
External Pressure Modules (EXT), Standard Accuracy
Module
Unit
EXT200mC-s
kPa
mbar
iwc
EXT2C-s
EXT20C-s
EXT160-s
Range(2
Resolution
1 Year Uncertainty(1
&plusmn;20
&plusmn;200
&plusmn;80
0.001
0.01
0.01
kPa
bar
psi
-100 ... 200
-1 ... 2
-14.5 ... 30
0.01
0.0001
0.001
0.05% FS
kPa
bar
psi
-100 ... 2000
-1 ... 20
-14.5 ... 300
0.1
0.001
0.01
0.05% FS
0 ... 16
0 ... 160
0 ... 2400
0.001
0.01
0.1
0.05% FS
MPa
bar
psi
0.05% RDG + 0.05% FS
Term ’FS’:
'FS' is the Full Scale of the positive side range. E.g. for &plusmn;200 mbar module, the Full Scale is 200 mbar.
1)
2)
Feature
Specification
Temperature coefficient
&lt;&plusmn;0.001 % Rdg/&deg;C outside 15535&deg;C
Maximum overpressure
2 &times; Range
Pressure port
EXT160-s:
G 1/8” female (parallel )
All others:
G1/8” (ISO228/1) female. A conical 1/8” BSP male with
60&deg; internal cone adapter included for Beamex hose set.
Wetted parts
AISI316 stainless steel, Hastelloy, Nitrile rubber.
Pressure media
EXT200mC-s and EXT2C-s:
Dry clean air or other clean, inert, non-toxic,
non-corrosive gases
EXT20C-s and EXT160-s:
Clean, inert, non-toxic, non-corrosive gases or liquids
Use of pressure media classified as dangerous is prohibited.
Dimensions,
length / width / depth
145 mm / 45 mm / 55 mm
(5.7&quot; / 1.8&quot; / 2.2&quot;)
Weight
0.5 kg
Operating temperature
-105+50&deg;C
(145122 &deg;F)
Storage temperature
-205+60&deg;C
(-45140 &deg;F)
Humidity range
0580 % R.H. non-condensing
(59 5 95 &deg;F)
(1.1 lb)
Uncertainty includes reference standard uncertainty, hysteresis, non-linearity, repeatability and typical long term
stability for mentioned period (k=2).
Every internal/external pressure module’s range may be displayed also in absolute pressure if the Barometric
Module (B) is installed.
144
MC2 User Guide
Appendix 1, Technical Data
Electrical Measurements
The following electrical measurements are available in all MC2
models.
Voltage Measurement
Full Range: -1 ! 60 V DC
Sub Range
Resolution
1 Year Uncertainty(1
&plusmn; 0.25 V
0.001mV
0.02 % RDG + 5 &micro;V
&plusmn;(0.25 ... 1 V)
0.01 mV
(same as above)
1 ... 25 V
25 ... 60 V
0.1 mV
1.mV
0.02 % RDG + 0.25 mV
(same as above)
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Input impedance
&gt;1 Mohm
Supported units
V, mV, &micro;V
Display update rate
3 / second
Current Measurement
Full Range: &plusmn;100 mA
Sub Range
1)
MC2 User Guide
Resolution
&plusmn;25mA
0.0001 mA
&plusmn;(25..100 mA)
0.001 mA
1 Year Uncertainty(1
0.02 % RDG + 1.5 &micro;A
(same as above)
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Input impedance
&lt; 7.5 ohm
Supported units
mA, &micro;A
Display update rate
3 / second
Loop Supply
Specification
Max. output current
&gt; 25 mA, short circuit protected
Output voltage
24 V &plusmn; 10%
Output impedance
in HART&reg;
compatible mode
300 ohm &plusmn; 20%
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
145
Appendix 1, Technical Data
Frequency Measurement
Full Range: 0.0027 ! 50 000 Hz
Sub Range
Resolution
0.0027 .. 0.5 Hz
1 Year Uncertainty(1
0.000001 Hz
0.01 % RDG
0.5 .. 5 Hz
0.00001 Hz
(same as above)
5 .. 50 Hz
0.0001 Hz
(same as above)
50 .. 500 Hz
0.001 Hz
(same as above)
500 .. 5000 Hz
0.01 Hz
(same as above)
5000 .. 50000 Hz
0.1 Hz
(same as above)
Feature
Specification
Temperature
coefficient
Specification valid from –10 5 50&deg;C
(14 5 122&deg;F)
Input impedance
&gt; 1 Mohm
Trigger level
-1514 V in 1 V steps and open collector inputs
Minimum signal
amplitude
2 Vpp (&lt; 10 kHz),
3 Vpp (10...50 kHz)
Supported units
Hz, kHz, cph, cpm, 1/Hz (s), 1/kHz (ms), 1/MHz (&micro;s)
Gate period
267 ms + 1 signal period
Pulse Counting
Feature
Specification
Range
0 to 9,999,999 pulses
Input impedance
&gt; 1 Mohm
Trigger level
-1514 V in 1 V steps and open collector inputs
Minimum signal
amplitude
2 Vpp (pulse length &gt; 50 &micro;s)
3 Vpp (pulse length 10...50 &micro;s)
Switch Test
Potential free contacts
Test Voltage /
3V5
or
24 V
Current
0.13 mA 5
or
35 mA
Trigger level
1V5
or
2V
Voltage level detection
Input impedance
&gt; 1 Mohm
Trigger level
-1514 V in 1 V steps
1)
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
146
MC2 User Guide
Appendix 1, Technical Data
Electrical Generation, Sensor Measurement and Simulation
The following features are available in model MC2-MF and model
MC2-TE.
mV Measurement (T/C-Terminals)
Range
Resolution
-25 ... 150 mV
0.001mV
1 Year Uncertainty(1
0.02 % RDG + 4 &micro;V
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Input impedance
&gt;10 Mohm
Supported units
V, mV, &micro;V
Display update rate
3 / second
mV Generation (T/C-Terminals)
Range
-25 ... 150 mV
Resolution
0.001 mV
1 Year Uncertainty(1
0.02 % RDG + 4 &micro;V
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Max. load current
5 mA
Load effect
&lt; 5&micro;V/mA
Supported units
V, mV, &micro;V
1)
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
MC2 User Guide
147
Appendix 1, Technical Data
Voltage Generation
Full Range: –3 ... 12 V
Sub Range
-3 ... -0.25 V
&plusmn; 0.25 V
0.25 ... 12 V
Resolution
0.1 mV
1 Year Uncertainty(1
0.02 % RDG + 0.1 mV
0.01 mV
(same as above)
0.1 mV
(same as above)
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Max. load current
5 mA
Load effect
&lt; 50 uV/mA
Supported units
V, mV, &micro;V
mA Generation (Source/Sink)
Range
Resolution
0... 25 mA
0.0001mA
1 Year Uncertainty(1
0.02 % RDG + 1.5 &micro;A
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Max load
impedance (source)
750 ohm @20 mA,
600 ohm @25 mA
Max loop voltage
(sink)
60 V
Supported units
mA, &micro;A
1)
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
148
MC2 User Guide
Appendix 1, Technical Data
Resistance Measurement
Full Range: 0 ... 4000 ohm
Sub Range
Resolution
1 Year Uncertainty(1
0 ... 250 ohm
1 mohm
4 wire connection:
0.02 % RDG + 3.5 mohm
3 wire connection:
0.02 % RDG + 13.5 mohm
250 ... 2650 ohm
10 mohm
(same as above)
2650 ... 4000 ohm
100 mohm
(same as above)
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Measurement
current
Pulsed, bi-directional 1 mA (0 ... 500 ohm),
0.2 mA (&gt;500 ohm).
Supported units
ohm, kohm
Display update rate
3 / second
Resistance Simulation
Full Range: 0 ... 4000 ohm
Sub Range
1)
2)
MC2 User Guide
Resolution
0 ... 400 ohm
10 mohm
400 ... 4000 ohm
100 mohm
1 Year Uncertainty(1 (2
0.04 % RDG or 30 mohm
(Whichever is greater)
(same as above)
Feature
Specification
Temperature
coefficient
Add 0.0015 % RDG /&deg;C to spec. outside 18 5 28&deg;C
Add 0.0008 % RDG /&deg;F to spec. outside 64.4 5 82.4&deg;F
Max. Resistance
excitation current
5 mA (0 ... 650 ohm)
Iexc*Rsim &lt; 3.25 V (650 ... 4000 ohm)
Settling time
(pulsed currents)
1 ms
Supported units
ohm, kohm
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
Specification valid with an excitation current
&gt;0.2 mA (0...400 ohm),
&gt;0.1 mA (400...4000 ohm)
149
Appendix 1, Technical Data
Frequency Generation
Full Range: 0.0005 ... 10000 Hz
Sub Range
Resolution
1 Year Uncertainty(1
0.0005 ... 0.5 Hz
0.000001 Hz
0.01 % RDG
0.5 ... 5 Hz
0.00001 Hz
(same as above)
5 ... 50 Hz
0.0001 Hz
(same as above)
50 ... 500 Hz
0.001 Hz
(same as above)
500 ... 5000 Hz
0.01 Hz
(same as above)
5000 ... 10000 Hz
0.1 Hz
(same as above)
Feature
Specification
Temperature
coefficient
Specification valid from –10 to 50&deg;C (14...122&deg;F)
Max. load current
5 mA
Output amplitude
positive square
wave
0 .. 12 Vpp &plusmn;(0.2 V+5%)
Output amplitude
symmetric square
wave
0 .. 6 Vpp &plusmn;(0.2 V+5%)
Duty Cycle
1 ... 99 % (0.0009 5 500 Hz),
high/low time: minimum 25&micro;s, maximum 1165 s
Jitter
&lt; 0.28 &micro;s
Supported units
Hz, kHz, cph, cpm, 1/Hz (s), 1/kHz (ms), 1/MHz (&micro;s)
Pulse Generation
1)
150
Feature
Specification
Range
0 to 9 999 999 pulses
Resolution
1 pulse
Max. load current
5 mA
Output amplitude
positive pulse
0 .. 12 Vpp &plusmn;(0.2 V+5%)
Output amplitude
symmetric pulse
0 .. 6 Vpp &plusmn;(0.2 V+5%)
Pulse frequency
0.0005 ... 10000 Hz
Duty Cycle
1 ... 99 % (0.0009 5 500 Hz),
high/low time: minimum 25&micro;s, maximum 1165 s
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
MC2 User Guide
Appendix 1, Technical Data
Temperature Measurement and Simulation
The following features are available in model MC2-MF and model
MC2-TE.
RTD Measurement and Simulation
Common features for RTDs available as standard:
Feature
Specification
Temperature
coefficient
&lt; &plusmn;0.0015% of resistance / &deg;C outside of 18...28&deg;C
&lt; &plusmn;0.0008% of resistance / &deg;F outside of 64.4 ...82.4&deg;F
Supported units
&deg;C, &deg;F, K
Measurement
current
Pulsed, 1 mA (0..500 ohm), 0.2 mA (&gt;500 ohm).
Display update rate
(measurement)
3 / second
Max. Resistance
excitation current
(simulation)
5 mA (0 ... 650 ohm)
Iexc*Rsim &lt; 3.25 V (650 ... 4000 ohm)
Pt50 Pt1000
Full Range: -200 ! 850 &deg;C
Sub Range
1)
2)
MC2 User Guide
Resolution
1 Year Uncertainty(1
-200 ... 200 &deg;C
0.01 &deg;C
4-wire measurement:
0.1 &deg;C
Simulation(2:
0.15 &deg;C
200 ... 600 &deg;C
0.01 &deg;C
4-wire measurement:
0.2 &deg;C
Simulation(2:
0.25 &deg;C
600 ... 800 &deg;C
0.01 &deg;C
4-wire measurement:
0.03 &deg;C
Simulation(2:
0.35 &deg;C
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
Specification valid with an excitation current
&gt;0.2 mA (0...400 ohm),
&gt;0.1 mA (400...4000 ohm)
151
Appendix 1, Technical Data
Ni 100
Range
-60 ... 180 &deg;
Resolution
0.01 &deg;C
1 Year Uncertainty(1
4-wire measurement:
0.1 &deg;C
Simulation(2:
0.15 &deg;C
Ni 120
Range
-80 5 260 &deg;C
Resolution
0.01 &deg;C
1 Year Uncertainty(1
4-wire measurement:
0.1 &deg;C
Simulation(2:
0.15 &deg;C
Cu 10
Range
-200 5 260 &deg;C
Resolution
0.01 &deg;C
1 Year Uncertainty(1
4-wire measurement:
0.2 &deg;C
Simulation(2:
0.8 &deg;C
RTD Types Available as Standard
• Pt50 (385)
• Pt1000 (385)
• Ni100 (618)
• Pt100 (385)
• Pt100 (3926)
• Ni120 (672)
• Pt200 (385)
• Pt100 (391)
• Cu10 (427)
• Pt400 (385)
• Pt100 (375)
• Pt500 (385)
• Pt100 (3923)
1)
2)
152
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2)
Specification valid with an excitation current
&gt;0.2 mA (0...400 ohm),
&gt;0.1 mA (400...4000 ohm)
MC2 User Guide
Appendix 1, Technical Data
RTD Types Available as Option
• Pt25 (3926)
• Ni50 (618)
• Cu100 (427)
• Pt200 (3926)
• Ni120 (618)
• Cu10 (426)
• Pt470 (3926)
• Ni1000 (618)
• Cu50 (426)
• Pt500 (3926)
• Cu53 (426)
• Pt50 (3916)
• Ni50 (672)
• Pt100 (3916)
• Ni50 (672)
• Pt200 (3916)
• Ni100 (672)
• Cu 10M (428)
• Pt400 (3916)
• Ni1000 (672)
• Cu 50M (428)
• Pt500 (3916)
• Cu100 (426)
• Cu 100M (428)
• Pt1000 (3916)
• NiFe604 (518)
• Pt25 (391)
• NiFe1000 (527)
• Cu 10M (426)
• Pt120 (391)
• NiFe2000 (527)
• Cu 50M (426)
• Pt130 (391)
• NiFe3000 (262)
• Cu 53M (426)
• Pt500 (391)
• Cu 100M (426)
• Pt1000 (375)
• Pt100 (389)
• Pt10 (3923)
• Pt50 (3924)
• Pt100 (3924)
• Pt200 (3924)
• Pt500 (3924)
• Pt1000 (3924)
MC2 User Guide
153
Appendix 1, Technical Data
Thermocouple Measurement and Simulation
Common features for thermocouple types available as standard:
Feature
Specification
Temperature
coefficient
&lt; &plusmn;0.0015% of thermovoltage / &deg;C
outside of 18...28&deg;C
&lt; &plusmn;0.0008% of thermovoltage / &deg;F
outside of 64.4 ...82.4&deg;F
Supported units
&deg;C, &deg;F, K
Input impedance
(measurement)
&gt;10 Mohm
Display update rate
(measurement)
3 / second
Max. load current
(generation)
5 mA
Load effect
(generation)
&lt; 5&micro;V/mA
Type B(2
Full Range: 0 ... 1820 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
0 ... 200
0.01 &deg;C
(3
200 ... 400
0.01 &deg;C
2.0 &deg;C
400 ... 1820
0.01 &deg;C
1.0 &deg;C
Type R(2
Full Range: -50 ... 1768
Sub Range
1)
2)
3)
154
Resolution
1 Year Uncertainty(1 (&plusmn;)
-50 ... 0
0.01 &deg;C
1.0 &deg;C
0 ... 100
0.01 &deg;C
0.8 &deg;C
100 ... 1768
0.01 &deg;C
0.6 &deg;C
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2).
Uncertainty does not include reference junction uncertainty.
IEC 584, NIST MN 175, BS 4937, ANSI MC96.1
&plusmn;0.02 % of thermovoltage + 4 &micro;V
MC2 User Guide
Appendix 1, Technical Data
Type S(2
Full Range: -50 ... 1768
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
-50 ... 0
0.01 &deg;C
1.0 &deg;C
0 ... 1768
0.01 &deg;C
0.7 &deg;C
Type E(2
Full Range: -270 ... 1000 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
-270 ... 200
0.01 &deg;C
(3
200 5 1000
0.01 &deg;C
0.25 &deg;C
Type J(2
Full Range: -210 ... 1200 &deg;C
Sub Range
Resolution
-210 .. 1200
0.01 &deg;C
1 Year Uncertainty(1 (&plusmn;)
0.3 &deg;C
Type K(2
Full Range: -270 ... 1372 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
-270 ... -200
0.01 &deg;C
(3
-200 ... 1000
0.01 &deg;C
0.3 &deg;C
1000 ... 1372
0.01 &deg;C
0.4 &deg;C
Type N(2
Full Range: -270 ... 1300 &deg;C
Sub Range
1)
2)
3)
MC2 User Guide
Resolution
1 Year Uncertainty(1 (&plusmn;)
-270 ... -200
0.01 &deg;C
(3
-200 5 1300
0.01 &deg;C
0.4 &deg;C
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2).
Uncertainty does not include reference junction uncertainty.
IEC 584, NIST MN 175, BS 4937, ANSI MC96.1
&plusmn;0.02 % of thermovoltage + 4 &micro;V
155
Appendix 1, Technical Data
Type T(2
Full Range: -270 ... 400 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
-270 ... -200
0.01 &deg;C
(3
-250 ... 100
0.01 &deg;C
0.3 &deg;C
100 ... 400
0.01 &deg;C
0.2 &deg;C
Type U(4
Full Range: -200 ... 600 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
-200 ... -100 &deg;C
0.01 &deg;C
0.3 &deg;C
-100 ... 600 &deg;C
0.01 &deg;C
0.4 &deg;C
Type L(4
Range
Resolution
-200 ... 900
0.01 &deg;C
1 Year Uncertainty(1 (&plusmn;)
0.25 &deg;C
Type C(5
Full Range: 0 ... 2315 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
0 5 1000
0.01 &deg;C
0.4 &deg;C
1000 5 2000
0.01 &deg;C
0.8 &deg;C
2000 5 2315
0.01 &deg;C
1.2 &deg;C
Type G(6
Full Range: 0 ... 2315 &deg;C
Sub Range
1)
2)
3)
4)
5)
6)
156
Resolution
1 Year Uncertainty(1 (&plusmn;)
0 5 100
0.01 &deg;C
(3
100 5 2315
0.01 &deg;C
1.0 &deg;C
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2).
Uncertainty does not include reference junction uncertainty.
IEC 584, NIST MN 175, BS 4937, ANSI MC96.1
&plusmn;0.02 % of thermovoltage + 4 &micro;V
DIN 43710
ASTM E 988 - 96
ASTM E 1751 - 95e1
MC2 User Guide
Appendix 1, Technical Data
Type D(5
Full Range: 0 ... 2315 &deg;C
Sub Range
Resolution
1 Year Uncertainty(1 (&plusmn;)
0 ... 1000 &deg;C
0.01 &deg;C
0.4 &deg;C
1000 ... 2000 &deg;C
0.01 &deg;C
0.8 &deg;C
2000 ... 2315 &deg;C
0.01 &deg;C
1.2 &deg;C
Thermocouple Types Available as Option
• K+/Au0.07Fe (6
• Ni18Mo/Ni0.8Co (6
• Platinel II (6
• Au/Pt (6
• Pt40Rh/Pt20Rh (6
• Ir40Rh/Ir (6
• Pt5Mo/Pt0.1Mo (6
Internal Reference Junction
1)
5)
6)
Range
1 Year Uncertainty(1 (&plusmn;)
-10 ... 50 &deg;C
0.25 &deg;C
Uncertainty includes reference standard uncertainty, hysteresis, nonlinearity,
repeatability and typical long term stability for mentioned period. (k=2).
Uncertainty does not include reference junction uncertainty.
ASTM E 988 - 96
ASTM E 1751 - 95e1
All specifications are subject to change without prior notice
MC2 User Guide
157
Appendix 2, Index
Appendix 2, Index
As Found calibration...............................124
As Left calibration ...................................125
Auto-off Delays.........................................99
2
2-wire system......................................... 117
B
A
About MC2, Window ................................ 96
About This Manual ..................................... 3
Acknowledging Alarms ....................... 69, 70
Additional Info Row .................................. 90
Bar Graph ................................................... 93
Barometric Pressure ................................... 92
Clearing ...................................................... 93
Cumulative Average ................................... 91
Deviation Reference ................................... 91
Difference Measurement ............................ 91
Feedback Measurement ............................. 92
Icons ........................................................... 90
Internal Temperature .................................. 91
Maximum value .......................................... 90
Maximum-Minimum .................................... 91
Minimum value............................................ 90
Normal Reading .......................................... 91
Pulses Done ............................................... 93
Pulses Left .................................................. 93
Rate of Change .......................................... 90
Redundant Measurement ........................... 91
Redundant Reference ................................ 91
Resetting Calculations ................................ 93
RJ Temperature
Measurement .............................................. 92
RTD Measurement ..................................... 92
Sensor Resistance ..................................... 92
Thermovoltage Measurement..................... 92
Bag ..........................................................26
Bar Graph ................................................93
Barometric Pressure.................................92
Basic Mode, Defined ................................37
Batteries ............................................. 11, 25
Charging ..................................................... 12
Removing/Replacing .................................. 13
C
Calibration
Adjustment................................................ 124
As Found .................................................. 124
As Left ...................................................... 125
Examples .................................................. 127
Generally .................................................. 122
Phases ...................................................... 123
Pneumatic Pressure
Transmitter ............................................... 136
Pressure Converter .................................. 136
Pressure Electrical Limit
Switch ....................................................... 132
Pressure Transmitters .............................. 128
Procedure, Defined .................................. 126
Switch ....................................................... 132
Temperature Indicators ............................ 130
Temperature Recorders ........................... 130
Temperature Sensor ................................ 134
Additional Information ............................ 107
Adjustment of Instruments ..................... 124
Alarms ..................................................... 69
Calibration Points, Custom .....................101
Calibrator
Acknowledging ........................................... 70
Acknowledging ........................................... 69
Resetting..................................................... 70
Capacity indication ...................................14
Carrying Case ..........................................26
Case ........................................................26
Change Rate ............................................90
Recalibration............................................. 100
Resetting .................................................... 93
158
MC2 User Guide
Appendix 2, Index
Changing EXT Module
E
Basic Mode ................................................. 45
Changing
Generation/Simulation
Values ..................................................... 55
Charger ................................................... 33
Check Boxes ........................................... 24
Cleaning MC2 ......................................... 34
Clearing the Additional Info
Row ......................................................... 93
Communication ....................................... 15
Configuration Windows............................ 20
Connecting/Disconnecting a
Pressure Module ..................................... 45
Connections .............................................. 6
Electrical Limit Switch
Calibration ............................................. 132
Entering
Generation/Simulation
Values ..................................................... 55
Error % .................................................... 82
Error in Input Units ................................... 83
Error in Output Units ................................ 84
Error situations in
thermocouple measurement .................. 115
EXT Connector .......................................... 8
EXT Module
External Pressure Modules .......................... 7
Internal Pressure Modules ........................... 7
External Pressure Modules ........................ 7
External Reference Junction .................. 112
Extra Info Row ......................................... 90
Connectors ................................................ 8
Contrast of the Display .............................. 9
Cumulative Average ................................ 91
Current Generation.................................. 57
Current Measurement ............................. 41
Customizing
Auto Off Delays .......................................... 99
Date and Time Format ............................... 98
Language.................................................... 99
Net Frequency ............................................ 99
Owner Info .................................................. 99
Pressure Units .......................................... 106
Temperature Scale ..................................... 99
Temperaure Units ....................................... 99
Test Point Sets ......................................... 101
Transfer Functions ................................... 103
User Setups ................................................ 97
Volume ....................................................... 99
D
Damping .................................................. 70
Date Format ............................................ 98
Deviation Measurement........................... 87
Deviation Reference ................................ 91
Difference Measurement ....................89, 91
Display
Changing .................................................... 45
F
Feedback Measurement .......................... 92
Fields
Check Boxes .............................................. 24
Numeric Fields ........................................... 21
Selection Lists ............................................ 23
Text Fields .................................................. 22
Firmware
Basic Mode ................................................. 17
Check Boxes .............................................. 24
Configuration Windows .............................. 20
Function Keys ............................................. 19
Menu........................................................... 19
Numeric Fields ........................................... 21
Selection Lists ............................................ 23
Status Bar ................................................... 18
Text Fields .................................................. 22
Updating ............................................... 17, 33
User Interface ............................................. 18
Frequency Generation ............................. 59
Frequency Measurement ......................... 43
Function Info, Basic Mode ....................... 68
Function Keys .......................................... 19
Contrast ........................................................ 9
Display Modes ......................................... 81
Error % ....................................................... 82
Error in Input Units ..................................... 83
Error in Output Units ................................... 84
Percentage ................................................. 85
Scaling ........................................................ 86
Driver for USB ......................................... 15
Dry Batteries ........................................... 25
MC2 User Guide
159
Appendix 2, Index
Measurement
Test Diode Connections ........................... 118
G
Measuring
Current ........................................................ 41
Frequencies ................................................ 43
General Description .................................... 39
Pressure ..................................................... 44
Pulse Counting ........................................... 47
Resistance .................................................. 48
Switch State Sensing ................................. 49
Voltages...................................................... 53
General Settings ...................................... 99
Generating (see also
Simulating)
Current ........................................................ 57
Entering Values .......................................... 55
Frequency ................................................... 59
General Description .................................... 54
Manual Stepping ......................................... 55
Pulses ......................................................... 60
Spinning ...................................................... 55
Voltages ...................................................... 66
Memory ................................ 9, 97, 102, 105
Minimum value .........................................90
Minimum Value
Resetting .................................................... 93
Model, Indentifying .................................... 2
H
N
Hardware ................................................... 5
Net Frequency..........................................99
Normal Reading .......................................91
Numeric Fields .........................................21
I
Icons ........................................................ 90
Indentifying MC2 Model ............................. 2
Internal Pressure Modules ................. 141, 7
Internal Reference Junction ................... 111
Internal Temperature ............................... 91
O
Option Connector ...................................... 8
Options.....................................................25
Carrying Case............................................. 26
Dry Batteries ............................................... 25
EXT Connection Cable ............................... 26
Pressure Hose ............................................ 25
Pressure Modules ...................................... 25
Thermocouple Mini Plugs ........................... 26
K
Keyboard
Arrow Keys ................................................. 10
Backlight Key .............................................. 10
Enter Key .................................................... 10
Function Keys ............................................. 10
Numeric Keys ............................................. 10
On/Off Key .................................................. 10
L
Language ................................................. 99
Leak Test ................................................. 71
Limit Switch Calibration .......................... 132
Owner ......................................................99
P
Parallel Functions in MC2.......................119
PC Communication, Driver .......................15
Percentage Display ..................................85
Pneumatic Pressure
Transmitter Calibration ...........................136
Power Connector ...................................... 8
Pressure
Module Names ......................................... 109
Pressure Types ........................................ 108
Square Rooting Instruments..................... 110
M
Manual Stepping ................................ 55, 78
Maximum value ........................................ 90
Maximum Value
Resetting..................................................... 93
Maximum-Minimum.................................. 91
MC2
Indentifying the Model .................................. 2
160
Pressure Converter
Calibration ..............................................136
Pressure Hose .........................................25
Pressure Measurement ............................44
Pressure Module
Connecting/Disconnecting .......................... 45
Zeroing ....................................................... 46
Pressure Modules
MC2 User Guide
Appendix 2, Index
Barometric .................................................... 7
Connections.................................................. 7
External ........................................................ 7
Gauge ........................................................... 7
Pressure Transmitter
Calibration ............................................. 128
Pressure Units, Custom......................... 106
Pulse Counting ........................................ 47
Pulse Generation..................................... 60
Pulses Done ............................................ 93
Pulses Left .............................................. 93
R
Ramping .................................................. 76
Rate of Change ....................................... 90
Resetting .................................................... 93
Recalibrating MC2 ................................. 100
Redundant Measurement ...................88, 91
Redundant Reference ............................. 91
Reference Junction
External .................................................... 112
Internal ...................................................... 111
Modes ............................................... 111, 112
Related Information ............................... 107
Resetting Alarms ..................................... 70
Resetting MC2 ........................................ 33
Resetting min/max/rate
Calculations............................................. 93
Resistance Simulation ............................. 61
Resitance Measurement.......................... 48
RJ Temperature
Measurement .......................................... 92
RTD Connections .................................. 116
RTD Measurement .................................. 92
RTD Sensor Simulation ........................... 62
RTD Sensor Types
Optional .................................................... 153
Standard ................................................... 152
S
Safety ...................................................... 27
Scaling .................................................... 86
Selection Lists ......................................... 23
Sensor Resistance .................................. 92
Service .................................................... 33
Settings
Auto-off Delays ........................................... 99
Date and Time (Format) ............................. 98
Language.................................................... 99
Net Frequency ............................................ 99
Owner ......................................................... 99
Temperature Scale ..................................... 99
Temperature Unit........................................ 99
MC2 User Guide
User Setups ................................................ 97
Volumes ..................................................... 99
Simulating (see also
Generating)
Resistance .................................................. 61
RTD Sensors .............................................. 62
Thermocouples........................................... 64
Simultaneous
measurement/generation/sim
ulation .................................................... 119
Sinking Current ........................................ 57
Sleep Mode ............................................. 36
Software ............................................ 17, 33
Sourcing Current...................................... 57
Special Generations
Manual Stepping ........................................ 78
Ramping ..................................................... 76
Stepping ..................................................... 73
Special Measurements ............................ 81
Damping ..................................................... 70
Deviation Measurement ............................. 87
Difference Measurement ............................ 89
Redundant Measurement ........................... 88
Tare ............................................................ 87
Specifications
Current Generation................................... 148
Current Measurement .............................. 145
Frequency Generation.............................. 150
Frequency Measurement ......................... 146
General ..................................................... 140
Internal Reference Junction ..................... 157
Milliamp Generation ................................. 148
Millivolt Generation ................................... 147
Millivolt Measurement............................... 147
Pressure Modules, External,
High Accuracy .......................................... 142
Pressure Modules, External,
Standard Accuracy ................................... 144
Pressure Modules, Internal ...................... 141
Pulse Counting ......................................... 146
Pulse Generation...................................... 150
Resistance Measurement ........................ 149
Resistance Simulation .............................. 149
RTD
Cu10 .................................................... 152
Ni100 ................................................... 152
Ni120 ................................................... 152
RTD Measurement ................................... 151
RTD Simulation ........................................ 151
RTDPlatinum ............................................ 151
Switch Test ............................................... 146
Thermocouple
Type B ................................................. 154
Type C ................................................. 156
Type D ................................................. 157
Type E ................................................. 155
Type G................................................. 156
Type J.................................................. 155
Type L ................................................. 156
161
Appendix 2, Index
Type N ................................................. 155
Type R ................................................. 154
Type S ................................................. 155
Type T ................................................. 156
Type U ................................................. 156
Thermocouple Measurement.................... 154
Thermocouple Simulation ......................... 154
Voltage Generation ........................... 147, 148
Voltage Measurement ...................... 145, 147
Test Point Sets, Custom .........................101
Testing Leakage/Stability .........................71
Text Fields ...............................................22
Thermocouple Simulation .........................64
Thermocouple Types
Optional .................................................... 157
Thermovoltage Measurement...................92
Tools ........................................................67
Alarms ........................................................ 69
Damping ..................................................... 70
Deviation Measurement ............................. 87
Difference Measurement ............................ 89
Error % ....................................................... 82
Error in Input Units ..................................... 83
Error in Output Units ................................... 84
Function Info ............................................... 68
Leak/Stability Test ...................................... 71
Manual Stepping......................................... 78
Percentage Display .................................... 85
Ramping ..................................................... 76
Redundant Measurement ........................... 88
Scaling ........................................................ 86
Stepping ..................................................... 73
Tare ............................................................ 87
Spinning ................................................... 55
Stability Test ............................................ 71
Stand ......................................................... 9
Starting MC2 ...................................... 17, 36
Status Bar ................................................ 18
Stepping .................................................. 73
Support ...................................................... 9
Switch Calibration .................................. 132
Switch State Sensing ............................... 49
Symbols
2-Wire RTD Connection ........................... 117
3-Wire RTD Connection ........................... 116
4-Wire RTD Connection ........................... 116
Alarms......................................................... 69
Barometric Pressure ................................... 92
Compensation Loop, RTD ........................ 117
Cumulative Average ................................... 91
Deviation Reference ................................... 91
Difference ................................................... 91
Maximum Value .......................................... 90
Maximum-Minimum .................................... 91
Minimum Value ........................................... 90
Normal Reading .......................................... 91
Pulses Done ............................................... 93
Pulses Left .................................................. 93
Rate of Change .......................................... 90
Redundant Measurement ........................... 91
Redundant Reference ................................ 91
RJ Temperature .......................................... 92
Sensor Resistance ..................................... 92
Thermovoltage ............................................ 92
Transfer Functions, Custom ...................103
Troubleshooting
thermocouple measurement ...................115
Typographical Conventions ....................... 3
U
Unpacking and Inspection ......................... 4
Updating the Firmware ....................... 17, 33
USB Connector ......................................... 8
USB Driver ...............................................15
User Configurable Pressure
Units .......................................................106
User Interface...........................................18
User Setups .............................................97
T
V
Tare ......................................................... 87
Tasks, Simultaneous.............................. 119
Teaching capacity indication .................... 14
Temperature Indicator
Calibration.............................................. 130
Temperature recorder
calibration .............................................. 130
Temperature Scale .................................. 99
Temperature Sensor
Calibration.............................................. 134
Temperature Unit ..................................... 99
Terminals ................................................... 8
Test Diode, Measurement
Parallel to a ............................................ 118
162
Viewing Angle of the Display ..................... 9
Voltage Generation ..................................66
Voltage Measurement ..............................53
Volume Settings .......................................99
W
Warnings ..................................................28
Z
Zeroing a Pressure Module ......................46
MC2 User Guide
Notes
MC2 User Guide
163
Notes
Notes
164
MC2 User Guide
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