M S 3 0

M S 3 0
MMS3000-T4
Owner’s Manual
R
Reevviissiioonn 227700220011
ISE, Inc.
- 10100 Royalton Rd. - Cleveland, OH 44133 USA - Tel: (440) 237-3200 - Fax: (440) 237-1744 - http://instserv.com
Trademark Notice
Multi Measurement System, MMS, T4, MM3000-T4, MAS, and
PROFLASH are trademarks of COMMTEST INSTRUMENTS Ltd.
PROFLASH
Other trademarks and registered trademarks belong to their
respective owners.
COPYRIGHT – 2001 COMMTEST INSTRUMENTS Ltd.
All Rights Reserved
2
CONTENTS
INTRODUCTION _____________________________ 7
1.1 STANDARD FEATURES _______________________ 8
1.2 STANDARD KIT ITEMS ________________________ 9
1.3 SUMMARY OF PARTS ________________________ 10
1.4 PRECAUTIONS______________________________ 11
1.5 USING THIS MANUAL ________________________ 13
1.5.1 Warnings ____________________________________
1.5.2 Names ______________________________________
1.5.3 Instruction Sequences __________________________
1.5.4 Instruction Types ______________________________
13
13
14
14
BASIC OPERATION _________________________ 15
2.1 GENERAL __________________________________ 16
2.1.1 Powering Up __________________________________ 16
2.1.2 Accessing Main Menu __________________________ 16
2.2 Selecting a Main Menu Item ___________________ 17
2.2.1 Selecting an Option ____________________________ 17
2.2.2 Editing Names ________________________________ 19
2.2.3 Editing Numerical Values ________________________ 22
2.3 SETTING UP INPUTS _________________________ 23
2.3.1 Channel Selection & Setup ______________________
2.3.2 Temperature Channel Setup _____________________
2.3.3 Matching Inputs to Sensors ______________________
2.3.4 Modifying the Input boxes _______________________
2.3.5 Editing the Input Value: _________________________
2.3.6 Sampling the Input value:________________________
2.3.7 Modifying the Output boxes ______________________
2.3.8 Modifying the Units _____________________________
24
25
26
27
28
28
29
29
2.4 SETTING UP CHANNELS _____________________ 30
2.4.1 Setting Up Your Recording (The Trigger Menu) ______ 30
2.4.2 Setting Display Options _________________________ 36
2.4.3 Graph Controls ________________________________ 37
2.5 RECORDING DATA __________________________ 39
3
2.5.1 Setting Up the Filename_________________________
2.5.2 Choosing a Folder _____________________________
2.5.3 Starting a Recording____________________________
2.5.4 Auto-Repeating Recordings ______________________
2.5.5 Chained Recordings ____________________________
39
39
40
40
41
2.6 PLAYING BACK _____________________________ 42
2.7 FILE UTILITIES ______________________________ 43
2.8 OUTPUTTING SAMPLES FROM RS232 __________ 44
UTILITIES__________________________________ 45
3.1 RESETTING THE INSTRUMENT ________________ 46
3.2 ADJUSTING LCD ____________________________ 47
3.2.1 Adjusting Contrast _____________________________ 47
3.2.2 Turning Backlight On ___________________________ 47
3.3 SETTING CLOCK ____________________________ 48
3.3.1 Checking Date and Time ________________________ 48
3.3.2 Setting Date and Time __________________________ 48
3.4 MANAGING BATTERY________________________ 49
3.4.1 Instrument Battery _____________________________
3.4.2 Checking Battery Capacity _______________________
3.4.3 Charging Powered-up instrument__________________
3.4.4 Charging Powered-down instrument _______________
3.4.5 Reconditioning Battery Pack _____________________
3.4.6 Power Saver __________________________________
3.4.7 Replacing Battery Pack _________________________
49
50
50
50
51
51
52
3.5 ERASING MEMORY __________________________ 53
3.6 TROUBLESHOOTING ________________________ 54
3.6.1 Power Problems _______________________________
3.6.2 Data Problems ________________________________
3.6.3 Data-Transfer Problems _________________________
3.6.4 Other Problems _______________________________
54
54
55
55
ANALYSIS SOFTWARE ______________________ 57
4.1 INSTALLING MAS-3000 _______________________ 58
4.1.1 License Agreement ____________________________ 58
4.1.2 PC System Requirements _______________________ 58
4.1.3 Installing MAS on PC____________________________ 59
4
4.2 STARTING UP MAS___________________________ 60
4.2.1 Starting up ___________________________________ 60
4.2.2 Configuring PC COM port _______________________ 60
4.3 TRANSFERRING DATA TO THE PC _____________ 61
4.4 MANAGING DATA ___________________________ 62
4.4.1 Opening a File ________________________________
4.4.2 Merging Two Files _____________________________
4.4.3 Using the Navigator ____________________________
4.4.4 Deleting Data from a Folder ______________________
4.4.5 Editing Recording Details ________________________
4.4.6 Viewing and Printing Data Values _________________
4.4.7 Exporting data ________________________________
62
62
62
62
63
63
64
4.5 CALCULATING DATA ________________________ 65
4.6 PLOTTING DATA ____________________________ 66
4.6.1 Plotting Single and Individual Charts _______________
4.6.2 Zooming & Panning ____________________________
4.6.3 Printing Charts ________________________________
4.6.4 Reading and Comparing Values __________________
4.6.5 Plotting Waterfall Charts_________________________
66
67
67
68
70
4.7 UPGRADING FIRMWARE _____________________ 71
Appendix SPECIFICATIONS __________________ 73
Appendix Application Notes __________________ 75
6.1 Application Note 1 ___________________________ 75
Application Note 2 ______________________________ 78
Appendix Optimizing Temperature Accuracy ____ 79
Appendix MAS-3000 MATH ___________________ 81
8.1 FUNCTIONS ________________________________ 82
8.1.1 Mathematical Functions _________________________
8.1.2 Iterative Functions _____________________________
8.1.3 Logical Functions ______________________________
8.1.4 Conditional Functions ___________________________
8.1.5 Date and Time Functions ________________________
82
84
84
85
85
8.2 OPERATORS _______________________________ 86
8.2.1 Logical Operators ______________________________ 86
5
8.2.2 Arithmetic Operators ___________________________ 86
6
INTRODUCTION
Congratulations on purchasing the MMS3000-T4.
The T4 allows up to four channels of temperature measurement
o
o
ranging from –250 to +1370 C (-418 to +2498 F) depending on the
thermocouple type. Collected data can be transferred to a PC where
it can be analyzed in detail using the MAS Windowsbased software
supplied in the kit.
This manual has been formatted to allow you to quickly learn how to
use your T4. Please keep this manual for future reference and read it
before operating your T4.
7
1.1 STANDARD F EATURES
•
24-bit A/D converter providing high-precision measurements
•
512kB non-volatile memory capable of storing up to 400,000
sample points
•
Time and date stamped recordings
•
Temperature compensated graphical LCD (liquid crystal display)
with 240x128 pixels
•
Electro-luminescent LCD backlight
•
Built-in battery charger and conditioner
•
1500mAh Ni-Cad (Nickel-Cadmium) battery pack
•
Upgradeable firmware
•
RS232 interface to communicate with a PC (personal computer)
•
Windows based Measurment Analysis Software (MAS)
8
1.2 STANDARD K IT ITEMS
9
1.3 SUMMARY O F PARTS
10
1.4 PRECAUTION S
WARNING: Please read and understand this section fully before
operating your instrument. Not heeding the warnings or
recommendations could result in data loss, data inaccuracy, damage
to the instrument, or injury to yourself.
WARNING: To avoid electrical shock, do not
connect any sensor to a high voltage i.e. a voltage
that exceeds 50VDC or 32VAC or the “safety extra
low voltage” (SELV) defined by your local power
authority.
WARNING: Ensure the datatransfer cable and bootstrap
cannot be entangled with any
moving or rotating machinery.
WARNING: Do not operate the instrument in
an explosive environment.
WARNING: Do not detach the battery pack from
the instrument for more than 2 hours as data and
settings may be lost.
<
2 hours
WARNING: Transfer data stored in the instrument to
a PC before PROFLASHing
the instrument with new
PROFLASH
firmware – reprogramming the instrument erases all
data stored in the instrument (see section 4.6).
11
WARNING: Charge the battery pack up to at least 30%
capacity before taking a recording. If using the
instrument for 4 hours or more, first ensure that the
battery pack is fully charged.
>
30%
WARNING: Constantly charging the battery when it is not fully
drained will create a "Memory" effect and eventually shorten the
amount of charge that the battery can hold. Please read 3.4
Managing Battery to learn how to prevent this.
WARNING: Do not expose the instrument to large
impacts or pressure.
WARNING: Do not use alcohol or any organic
solvent to clean the instrument.
Kero
WARNING: Do not expose the instrument to wet
conditions or store it in a damp place where the relative
humidity exceeds 80% RH.
WARNING: Do not place the instrument in a hot
place where the temperature exceeds 140°F (60°C).
Otherwise, the battery pack will degrade.
WARNING: If the instrument malfunctions, return it
to an authorized dealer. Do not try to repair it
yourself, as this will invalidate the warranty.
AUTHORIZED
DEALER
WARNING: Ensure that the battery pack is securely
fastened – but not over-tightened – to the instrument
before operating the instrument.
WARNING: Use only an approved power transformer
and ensure its voltage and frequency rating matches
that of your mains AC power.
12
1.5 USING THIS M ANUAL
1.5.1 Warnings
In this manual, the word WARNING is displayed where certain
actions may lead to damaging consequences. Please heed all such
warnings.
1.5.2 Names
In this manual, window and screen names are italicized. These
names refer to the names appearing at the top of windows/screens.
MAS Window
The PC key names are shown as normal text, e.g. Shift refers to the
Shift key on the PC keyboard.
Keys on the instrument are shown as they appear on the instrument
keypad, e.g.
refers to the Shift key on the instrument.
Some instrument keys have more than one function, e.g. the
key which is used as either the ON key or the OFF key depending on
the state the instrument is operating in.
13
1.5.3 Instruction Sequen ces
The ! symbol is used to indicate the sequence of menu selections.
Instruction
Meaning
Click File ! Save.
Select the File menu and then
select Save.
1.5.4 Instruction Types
The word “press” refers to key presses or menu selections on the
instrument.
The word “click” refers to menu selections on the PC, and “push”
refers to key presses on the PC keyboard.
Instruction
Meaning
Click File ! Export.
Select File and then Export in
MAS-3000 software.
Push the Esc key.
Push the Esc key on the PC
keyboard.
Some operating instructions are illustrated with examples. Such
instructions are marked with the word EXAMPLE.
14
BASIC
OPERATION
This section outlines the procedure for performing basic operations
on your instrument. You will learn to:
•
•
•
use the instrument menu system;
record data; and
playback recorded data.
WARNING: Read section 1.4 before operating your instrument.
15
2.1 GENERAL
2.1.1 Powering Up*
•
Press
•
Press
. Measurement begins and the screen displays data
that is being measured (using previous settings).
•
To power down, press
and follow on-screen instructions. If
the instrument does not respond to any key press, reset it (see
section 3.1).
. The Initialization screen is displayed.
2.1.2 Accessing Main Me nu
To perform instrument operations, you need to access the main
menu. To access the main menu:
•
Press
.
. The main menu is displayed at the
You can alternatively press
top of the screen and consists of four items: File, Display, Trig(ger),
and Sys(tem). To cancel the main menu, press
again.
* Every time the instrument is powered up, the power saver (a power-saving feature)
is automatically turned on. See section 3.4.6 for more details.
16
2.2 Selecting a M ain Menu Item
•
Press the number preceding the menu item.
Alternatively, press
or
and
to cycle to the menu item then press
.
EXAMPLE: to select the main menu item Trig, press
.
The drop down menu above shows the available options for the
Trigger menu. To cancel a dropdown menu, press
.
2.2.1 Selecting an Optio n
The procedure for selecting an option in a dropdown menu is similar
to selecting a main menu item i.e.
•
Press the number preceding the option, or press
cycle to the option and then press
or
and
to
.
Selected options, where appropriate, are checked (!). Selecting
options with names ending with “…” brings up windows that provide
more options. These options, and any further options they provide,
can be selected in the same manner. Most windows have selfexplanatory instructions. If more than one window is displayed, the
topmost is the active one. To cancel a window, press
.
17
EXAMPLE: to select Level Based… in the example below, press
18
2.2.2 Editing Names
To enter characters in the text editing window:
•
Select Display from the main menu and then select Edit Channel
Units or Edit Channel Names.
•
Press the key with the character you want until it appears above
the flashing cursor.
e.g. to enter the letter B, press
•
until the B is displayed.
The cursor advances automatically when you press the next key.
e.g. if the next letter you want to enter is E, press
displayed.
•
until E is
If the next letter of the word is on the same key just pressed,
press
to advance the cursor position.
then press key
e.g. press
until the letter D appears.
(The cursor can be moved backwards by pressing
•
).
More editing options (and their shortcut keys) are available by
pressing
Note:
.
and
can be used to enter the space character.
19
Libraries are available to make entering text easier.
•
Press
•
Pressing
20
to access the library categories.
will show the last text library selected.
Table of Short Cut Keys
Short Cut Key
Meaning
Clear all text
!
or
Move cursor forward
!
or
Move cursor back
Insert a space
Delete character
or
(press twice)
Can be used to enter a space
Text Library
Last Text Library
To toggle from upper to lower case press
desired case from the pop-up menu.
and choose the
Folder, Recording and Channel names can have a maximum of 16
characters. Unit Names can have a maximum of 8 characters.
21
2.2.3 Editing Numerical Values
•
Select the numeric field to be edited (using the normal option
selection procedure outlined in section 2.1.4).
•
Press the appropriate digit keys to enter the desired value. Enter
a decimal point by pressing
.
•
To make the number negative/positive press
•
Clear floating point numbers by pressing
. Non-floating
point numbers can sometimes be incremented or decremented
, e.g. This is possible when setting the
or
by pressing
SAMPLING PERIOD.
22
.
2.3 SETTING UP INPUTS
The T4 module is capable of simultaneous measurements of up to
four channels of data at a time.
WARNING
1. Never allow voltages of more than 10V between any two
thermocouple inputs, or 5V between an input and module
ground. This may damage the instrument.
2. For best accuracy, all sources being measured should be
perfectly isolated from each other (including thermocouple
†
inputs) .
† See Appendix Optimizing Temperature Accuracy.
23
2.3.1 Channel Selection & Setup
The instrument needs to know what type of sensor is attached to
each input channel. You must set up the input channels one at a
time.
•
Access the main menu (see section 2.1.2).
•
Press Sys ! Setup Inputs… to display the “Setup Channel
Input” window.
•
Press
•
Select the channel you would like to setup.
or
to display the channel drop down menu.
Note: Channels can be named by choosing “Edit/Names” from the
”Display” menu on the main menu bar (see section 2.1.2).
These names appear when downloading to a PC.
24
2.3.2 Temperature Chann el Setup
The options available for setup are as follows;
Thermocouple type can be selected
•
This can be done by moving the cursor to the “K-type”
option in the “Setup Channel Input” window and
pressing
displayed.
•
or
. The following screen will be
All thermocouples attached to the instrument must be of
the same type.
Units can be selected
•
Move the cursor to the units displayed below the
thermocouple type and press
or
o
o
through the units, “ C”, “ F”, and “User”.
to cycle
25
2.3.3 Matching Inputs to Sensors
If you are using standard thermocouple, then no further setup is
required. However if you require to perform a correction or offset for
a particular thermocouple you can match the inputs from the sensor
to the values you would like displayed.
o
EXAMPLE: If you have a thermocouple that is out by 10 C;
The thermocouple is displaying:
o
o
10 C at
0C
o
o
and
110 C at
100 C
Then the following linear relationship is assumed:
o
100 C
Measurement
to display
o
C
o
50 C
o
0C
o
10 C
o
60 C
Thermocouple reading
o
C
26
o
110 C
2.3.4 Modifying the Inpu t boxes
In this example we will setup the channel to match the following
sensor inputs:
•
From the main menu, press Sys ! Setup Inputs… and select
the channel to be setup.
•
Use
to select the unit type and press
to cycle
or
through the options to select User type. The Input, Output, and
Units boxes will appear.
•
Use the
arrows to move the flashing cursor to the
or
input box you wish to edit.
•
Press
or
to display a list of edit options.
27
2.3.5 Editing the Input Value:
•
Select “Edit Input…” to enter the thermocouple input in C.
•
Press
o
or
to accept the entered value.
2.3.6 Sampling the Input value:
It is also possible to set the input boxes by sampling the temperature
being monitored by the instrument.
This is very useful if you know what you’re measuring, but do not
know what temperature your input thermocouple is providing.
•
To match the input box follow the steps from the previous
example, but choose “Sample Input”.
•
The input box will update with the sample taken being displayed
in the selected input box.
•
If you are not happy with the sampled value keep selecting
“Sample Input” until you are, then press
menu.
Note:
to close the options
• The first input box reading must be lower than the
second input box.
• Input box readings must be more than 50 apart.
o
28
2.3.7 Modifying the Outp ut boxes
•
Use the
arrows to move the flashing cursor to the
or
output box to be altered.
•
Press
or
to edit the value in this box. The box will
become highlighted, with its previous value cleared. Now enter in
the value, and press
or
to accept this value.
•
Now press
arrow to select the next output box (The cursor
should flash beneath it).
•
Press
or
Note:
to begin editing. Type in the number 3.4, and press
to accept this value.
Output box values • Can be positive or negative.
• Can contain decimal places.
• Can be in any order (i.e. box 1 can be
greater than box 2).
2.3.8 Modifying the Units
•
To change the units (e.g. to mm), press
arrow until two
flashing cursors appear below the unit boxes.
•
to begin editing the unit. The “Enter Channel Unit”
Press
window will appear (see section 2.1.5).
29
2.4 SETTING UP CHANNELS
2.4.1 Setting Up Your Re cording (The Trigger
Menu)
Most of the important information involved in your recording is
entered under the trigger menu. Trigger Type, which Channels are
enabled, Sample Period, and Recording length/time.
Below are examples of all the trigger menu items. Each item can be
configured by following the pop-up menus as per previous sections.
Timer and level based trigger options can be selected by the
or
arrows and pressing
or
.
The Trigger Type (how recordings are started).
There are three main types of trigger available:
30
•
Manual Trigger
•
Time Based Trigger
•
Level Based Trigger
1
Manual Trigger - recording started and stopped by pressing
button.
2
Timer Based Trigger - data is recorded at regular intervals.
e.g.
• Log data every day
Starting at 10:05:00am
• Record 5 samples
• Sample Period = 1 second
• After Recording
Power Down
(30 sec sensor warm up)
10:05:00am
10:05:00am
Logging Period = 1 day
Recording Period
Sampling Period
Stay Awake or Power
Down and Warm Up
Instructions
10:05:00am
The user selectable warm
up time can be used to
allow sensors to stabilize
before recording begins.
Recording Period
= 5 Samples
W
Log Period
W
W
Recording
Sample Period
= 1 second
Warm up time
= 30 seconds
Waiting
31
3
Level Based Trigger - data is recorded if a sensor reaches a
specified level.
e.g. Trigger if lake
o
temperature is above 6 C or
O
below 2 C.
Outside Window Level
Available level trigger options.
Trigger if signal is:
Above
Below
Inside
Outside Level(s)
The Level based triggering option also allows for two more
types of triggering to be used:
32
•
Pre-Triggering
•
Post-Triggering
4
Pre-Trigger - record data for a specified time before a level
trigger occurs (level trigger must also be selected).
e.g.
Chan 1
Water
temperature
Crater Lake
What is the temperture of a
crater lake 1 hour before the
earth temperture reaches
o
10 C?
Chan 2
Earth
temperature
Instrument Settings
Channel 1 – No trigger setting
Channel 2 – Trigger if temperature level is
o
above 10 C
Pre-Trigger set to 1 hour
Sample period = 1 second
Record for 2 hours
Quake triggers data logger
Pre-trigger
Days/weeks etc.
Press
1 hour data
recorded before
quake
Data after quake
2 hours data recorded
after quake
Once Pre-trigger is set, the data logger can be left for days, weeks
etc. When the specified trigger level occurs, pre-trigger data is
already saved in memory.
33
5
Post Trigger - start recording data to memory after a specified
time has elapsed once a level trigger has occurred.
Trigger occurs
Data recorded
Post-trigger time
Press
6
Enable Channels - select the channels you would like to
record.
Note:
• Faster sampling rates are available if fewer channels
are selected.
• Less memory is used if few channels are enabled.
7
Sampling Period - the amount of time between samples.
Water
temperature
Sample
recorded to
memory
Channel 1
1 second
sampling
period
Note:
34
1 second
sampling
period
1 second
sampling
period
There is a fraction of a second delay between channel 1, 2, 3
etc. recordings.
7
Record For… the amount of time to record for, or the number of
samples to take before recording automatically stops.
Note:
If “Auto Repeat Recordings” (under the file menu) is
selected and level trigger is also selected, a new file will
be created as soon as the recording time has finished.
This way you can get a separate file every time a lake
level goes into flood for example.
35
2.4.2 Setting Display Op tions
To specify how measured data is to be displayed:
•
Access the main menu (see section 2.1.2).
•
To display measured data in the form of text, press Display !
Text. The real-time readings are displayed for each enabled
channel.
•
To display measured data in a text with minimum and maximum
values, press Display ! Min/Max.
•
The min and max values are reset whenever a new recording is
started, or
•
is pressed.
To edit the measurement unit for a channel, press Display !
Edit Units… In the Enter Channel Unit window, select the
channel by pressing
or
unit (see section 2.1.5).
•
To edit the name of a channel, press Display ! Edit Names…
In the Enter Channel Name window, select the channel by
pressing
or
section 2.1.5).
•
, and then edit the name of the channel (see
To swap temperature units between degrees Celsius, degrees
Farenheit and User defined setup, press Display ! Temperature
Units:
Note:
36
and then edit the name of the
It is possible to change the displayed Temperature units
during a recording by using the Display menu, but any
triggers that have been applied to Temperature channels
may accidentally trigger. The trigger levels that have been
set for any of the temperature channels are not converted
when you change your selection of Temperature units.
2.4.3 Graph Controls
To view an xy-graph:
•
Press Display ! Graph.
The following controls are available when viewing a graph. When a
file is being played back, additional cursor and zoom controls are
available.
Option
Meaning
Active cursor moves right
(Playback only)*
Active cursor moves left
(Playback only)*
Toggle active cursor (Playback only)*
Zoom In and Out between cursors
(Playback only)*
KEYS 1 – 9, 0
Select channel 1 to 0
Increase y-axis scale
(quick key press)
Decrease y-axis scale
(quick key press)
Scroll graph up
(continuous key press)
Scroll graph down
(continuous key press)
Resets graph settings to default
37
(Playback only)* - Cursors are available only when playing back a
file. For more information on Playback mode please see sections 2.5
and 2.6.
Ch1
Channel being
examined
Note:
38
123.8
o
C
Value at
active cursor
!!
257
Sample
number at
active cursor
To leave the “Playback” environment either press
or select Display ! Exit Playback.
2.5 RECORDING DATA
2.5.1 Setting Up the File name
The data recorded in a single recording session is stored as a file.
The name of the file into which data will be recorded is displayed at
the bottom of the data-display screen.
•
To edit the name of the file, press File ! New Recording. In the
New Recording Setup window, select Filename and edit the
filename in the New File Name window (see section 2.1.5).
•
File names are automatically numbered after the first recording
e.g. Lake level, Lake level 1, Lake level 2… etc.
2.5.2 Choosing a Folder
For identification purposes, it is convenient to group files that are
related under a common folder.
•
To choose the folder under which the recording file is to be
grouped, press File ! New Recording. In the New Recording
Setup window, select Folder, and in the Save Recording in
Folder… window, select the folder.
•
If a new folder is required, press Folder in the Save Recording in
Folder… window, select the new folder, and then press Rename
to edit its name. Then select the newly created folder in order to
place the recording file in it.
39
2.5.3 Starting a Recordin g
•
From the main display screen press
to start the recording.
Data will be recorded and displayed according to how the inputs,
trigger, and display options were set up. The sample number is
updated on the bottom right of the screen as the samples are
collected.
The data is recorded into the file and folder you chose earlier (the
name of the file is displayed at the bottom of the screen).
2.5.4 Auto-Repeating Re cordings
If recordings are level-triggered, the instrument can be instructed to
take recordings repeatedly. This is useful for capturing the next level
trigger event.
To auto-repeat level-triggered recordings:
•
Press File ! Auto Repeat Recordings to check (!) the option.
•
To stop a recording press the
40
key.
2.5.5 Chained Recording s
The instrument has a maximum capability of approx 60,000 data
points per individual recording. When this size is reached, another
file is created and recording continues without intervention or loss of
data.
Note:
Each sample of each channel uses up a data point, e.g. a 4
channel recording of length 10,000 samples uses up
40,000 data points.
Chained recordings are denoted with an x/y extension. Which can be
interpreted as the xth number part of a total of y parts.
e.g.
Untitled 1/2
Untitled 2/2
When transferring to MAS, if the entire folder is selected and sent,
then the chained recordings will be recombined into a single long
recording.
41
2.6 PLAYING BAC K
To play back a recording:
•
Press File ! Examine files…
•
In the Playback File window, select the recording to be played
back and press
Note:
•
.
Recordings can be played back in either the text, bar or
graph display modes, irrespective of the mode that they were
recorded in.
In the data-display screen, press
to move forward through
to move backwards. Press
to return to
the samples and
the beginning of the recording (the sample number is displayed
at the bottom right of the screen). The instrument beeps when
you have reached the first and last samples.
•
The display type and units can be altered in the playback, any
changes made during playback are only for the duration of the
playback. This allows recordings to be viewed in an alternative
view from the way that they were recorded.
•
To exit Playback mode either press
Playback.
Note:
42
or Display! Exit
In the Playback File window, there are also options to
rename or erase a folder or recording, create a new folder
and collapse or expand the data tree.
2.7 FILE UTILITIE S
In the file selection window (File!Examine Files) the following
utilities are available:
Option
Meaning
1. Shrink /
Expand
Shrinks or Expands the File Folder structure to
make selecting a folder easier and quicker.
2. Folder
Creates a NEW FOLDER.
3. Rename
Renames a file or a folder.
4. Copy
Copies the selected file’s setup (channel names,
units, trigger type etc.) so that the next
recording’s setup is the same.
5. Lock
Prevents a file from being erased with the
“ERASE” option. This option can be used to lock
your recordings so their setups are protected and
can then be copied at a later date. WARNING:
File! Erase All Memory will erase a locked file.
6. Erase
Erases the selected file or folder (does not erase
locked files/folders).
7. Snd to PC
Sends the selected file or folder to the PC (see
section 4).
or
Selects a file for playback or selects the active
FOLDER to record into (if Window Title is “Save
Recordings in Folder…”).
43
2.8 OUTPUTTING SAMPLES
FROM RS232
Press File!Output Samples to RS232 to send real time data in
ASCII format from the instrument’s RS232 port.
This data can be captured by a PC (e.g. using HyperTerminal).
Channel Number
Values
1
4.5000
6.8251
100.02
99.800
4.6000
6.8252
100.00
200.00
Approximately 200ms between
channel readings
Cycle continuously repeats
Format of Data
<channel number><space><channel value><CR><LF>
(8 data bits, no parity bit, 1 stop bit)
The default bit rate is 9600 bits/second, but it is possible to have the
instrument send data at 57600 or 19200 bits/second.
To select a higher rate, send the instrument approximately 20 ’Q’
characters (e.g. press Q in HyperTerminal 20 times) at the bit rate
you desire.
Note:
44
• ‘∗’ characters will be echoed while the ‘Q’ characters are
being transmitted.
• Operating the instrument’s menus may temporary
disrupt the transmission of samples from the RS232
port.
• Transferring files to MAS cancels RS232 sample
transmission.
• When using Timer Trigger, COMs will default to 9600
bits/second after the first wakeup.
UTILITIES
This section outlines the procedure for performing utility functions on
your instrument . You will learn to:
•
reset the instrument ;
•
adjust the instrument LCD;
•
set the instrument clock;
•
manage the instrument battery pack;
•
manage memory usage on the instrument ; and
•
troubleshoot the instrument .
WARNING: Read section 1.4 before operating your instrument .
45
3.1 RESETTING T HE
INSTRUMENT
Sometimes, due to electrostatic discharge exceeding 8kV, the
instrument may not respond to any key presses (including
presses). In such cases, it is important to reset the instrument as
soon as possible. To reset the instrument :
•
Press
while holding down
and then release them both
simultaneously, once the initialization screen has been
displayed.
Once reset, the instrument displays the Initialization screen and
resumes normal operation. Resetting the instrument does not erase
data or settings stored in the instrument .
46
3.2 ADJUSTING L CD
3.2.1 Adjusting Contrast
•
Press Sys ! LCD-Contrast…
•
To darken the LCD, press
•
To restore the default contrast, press
. To lighten it, press
then
.
.
If the screen flickers when cursors are moved, make the LCD darker.
3.2.2 Turning Backlight O n
To toggle the backlight ON and OFF press
then
.
47
3.3 SETTING CLO CK
3.3.1 Checking Date and Time
•
Press Sys !Clock.
All recordings are date and time stamped according to the clock
shown in the Date & Time window.
3.3.2 Setting Date and Time
•
Press Sys ! Clock.
•
To cycle to a particular field, press
•
To edit the value of a field, press
•
Press
.
and
.
when you have finished.
If the am/pm hour format is chosen, the hour switches back to 1 at
the thirteenth hour. If the 24h format is chosen, the hour continues
incrementing until 23 before switching back to 0.
48
3.4 MANAGING B ATTERY
3.4.1 Instrument Battery
The instrument is powered by a rechargeable Nickel-Cadmium (NiCad) battery pack. The normal operating voltage is 6.0 to 8.5 Volts.
Some automatic features have been built into the instrument to help
ensure that the battery pack is always sufficiently charged. Below 6.6
icon at the bottom right
Volts, the instrument displays a flashing
corner of the screen and beeps once every minute as a reminder
that the battery pack needs to be charged. Below 6.1 Volts, the
instrument automatically turns off the backlight to prevent further
power draining. Below 80% battery capacity, the instrument
automatically begins to charge the battery pack (if external power is
supplied). At 5.5 Volts, the instrument automatically powers down.
The power saver is another feature that helps conserve power on the
instrument – see section 3.4.6.
There is also an internal backup battery that backs up data and
settings in the instrument in the event that the battery pack is
detached from the instrument . The backup battery is kept charged
by the battery pack if the battery pack is functioning normally.
WARNING: Do not detach the battery pack from the instrument for
more than 2 hours as this will drain the backup battery, thereby
causing data and settings to be lost.
The battery pack can be charged by supplying 13.5 ± 1.5VDC, 1A
power to the instrument charger socket. The power transformer
supplied in the kit provides this DC voltage. The optional car adapter
charging lead may also be used to charge the battery pack in a
vehicle with a 12-Volt negative-chassis power system.
WARNING: Before charging the battery pack, ensure that the power
transformer used is an approved instrument power transformer (13.5
± 1.5VDC, 1A output) and that the voltage and frequency of your
mains AC power match that of the power transformer.
49
3.4.2 Checking Battery C apacity
•
Press Sys
The remaining battery capacity and voltage are displayed.
3.4.3 Charging Powered -up instrument
WARNING: See the warnings in section 3.4.1.
•
Plug the instrument power transformer into a standard power
outlet and its connector to the instrument charger socket. If the
battery capacity is less than 80%, charging begins automatically.
•
If charging does not begin automatically, press Sys ! Charge
Batt Charging, as indicated by the icon in the dropdown menu,
begins.
If the icon is not displayed, check that the mains power is turned
on. Charging stops automatically when complete or you can press
Sys ! Charge Batt to stop it. A full charging cycle takes
approximately 150 minutes. All other functions are usable while the
battery pack is being charged.
3.4.4 Charging Powered -down instrument
WARNING: See the warnings in section 3.4.1.
•
Plug the instrument power transformer into a standard power
outlet and its connector to the instrument charger socket. The
instrument powers up and charging, as indicated by the flashing
“CHARGING” message beside the Charge Batt option in the Sys
dropdown menu, begins.
If the instrument does not power up, reset the instrument (see
section 3.1), or unplug the power transformer connector and re-plug
it in. See also section 3.4.3 notes.
50
3.4.5 Reconditioning Ba ttery Pack
WARNING: See the warnings in section 3.4.1.
Battery reconditioning is the process of first discharging and then
charging batteries. It reduces the undesirable memory effect in NiCad batteries. The battery pack should be reconditioned when it is
first used (for its capacity to be displayed correctly) and monthly
thereafter (to prevent battery degradation). To recondition the battery
pack:
•
Plug the instrument power transformer into a standard power
outlet and its connector to the instrument charger socket.
•
Press Sys ! Recondition Batt.
After discharging the battery pack, the instrument automatically
proceeds to charge it. See also section 3.4.3 notes.
3.4.6 Power Saver
Everytime the instrument is powered up, the power saver – a powersaving feature – is automatically turned on. With the power saver
turned on, the following occurs automatically if no keys are pressed
for a period of time, after 8 minutes the LCD is turned off (but any
key press will turn it on again) and after 15 minutes, the instrument is
powered down. To turn the power saver on or off:
•
Press Sys ! Power Saver.
51
3.4.7 Replacing Battery Pack
•
Lift the boot stand.
•
Unscrew the battery pack and screw in the new one using a
suitable screwdriver or coin.
WARNING: Ensure that the battery pack is securely fastened – but
not over-tightened – to the instrument .
52
3.5 ERASING ME MORY
WARNING: Following the procedure below erases ALL folders and
ALL recordings in the instrument .
Before erasing data, you may wish to archive it on your PC (see
section 4.3). To erase all folders and recordings:
•
Press File ! Erase ALL Memory…
•
In the Erase All ! window, press
for the data to be erased.
and
together and wait
To erase only one particular recording or folder, see section 2.5.
WARNING: Erase All Memory will reset the instrument to factory
default settings. All locked folders and files will be erased.
53
3.6 TROUBLESH OOTING
3.6.1 Power Problems
Symptom
Cause
Remedy
Instrument cannot power
up
Low battery capacity
Charge battery pack
Electrostatic discharge
(ESD) exceeding 8kV
Reset instrument
Instrument powers down
when backlight turned on
Low battery capacity
Charge battery pack
Instrument powers down
shortly after powering up
Low battery capacity
Charge battery pack
Flashing
icon and
beeping every minute
Low battery capacity
Charge battery pack
3.6.2 Data Problems
Symptom
Cause
Remedy
Data lost when battery
pack detached for more
than 2 hours
Flat backup battery
Charge battery pack
Data lost when battery
pack detached for less
than 2 hours
Faulty backup battery
Send instrument to
authorized dealer for
servicing
“Insufficient memory”
displayed
No memory space left
for recordings
Erase obsolete
recordings (transfer to
PC first if necessary)
Measured data seems
incorrect
Sensor wired wrongly
Wire as recommended
Faulty sensor
Replace sensor
54
3.6.3 Data-Transfer Prob lems
Symptom
Cause
Remedy
“No PC ?” displayed, and
data cannot be transferred
to PC
Data-transfer cable not
properly connected
Re-secure cable
connections
Data-transfer cable
connected to wrong PC
COM port
Test COM port
availability and use
available port
Baud rate setting in
MAS-3000 too high
Select a lower baud rate
in MAS-3000
Baud rate setting in
MAS-3000 too high
Select a lower baud rate
in MAS-3000
MAS-3000 unable to
transfer data and “Transfer
failed” or “MAS Error
Dialog” displayed on PC
3.6.4 Other Problems
Symptom
Cause
Remedy
Instrument does not
respond to any key press
Electrostatic discharge
exceeding 8kV
Reset instrument
“Module fault” displayed
Module‡ damaged
Send instrument to
authorized dealer for
servicing
“Switch off then connect
module” displayed
Module not properly
plugged into instrument
Power down instrument
then re-secure module,
making sure not to bend
the connection pins
‡ The “module” is the measurement hardware unit of the instrument . It has the six
temperature measurement channels and 4 voltage measurment channels attached to
it and is fastened to the rest of the instrument by means of two M3x0.5x12mm screws.
55
56
ANALYSIS
SOFTWARE
Recordings made on your instrument can be transferred to the MAS
software running on a Windows based PC. MAS stands for
Measurement Analysis Software. MAS can be used to store, graph,
analyse, print & export your recordings.
It is assumed that the user of MAS is already familiar with basic
Windows commands. Please refer to the appropriate literature on
Windows if clarification is needed on mouse and keyboard
commands.
Note
Throughout MAS, pressing F1 on your keyboard will bring up
a comprehensive topic-specific Help screen. Also, clicking
the right mouse button anywhere in MAS will bring up a popup menu of the applicable commands.
WARNING: Read section 1.4 before operating your instrument .
57
4.1 INSTALLING M AS-3000
4.1.1 License Agreemen t
Please read the license and warranty agreement printed on the CD
cover found in the jewel case that the MAS CD-Rom was supplied in.
MAS is licensed for individual use and for installation on one
computer. The software contained on the CD-Rom remains the
intellectual property of COMMTEST INSTRUMENTS who retain the title
and ownership of the software.
4.1.2 PC System Require ments
The following are the minimum system requirements for installing
MAS:
•
Pentium or better
•
32MB RAM (64MB recommended)
•
10MB hard disk space
•
CD-Rom drive
•
Windows 95, 98, Me, NT or 2000 operating system
•
Windows compatible display and printer
•
Windows compatible mouse or other pointing device
•
An unused COM Port for communication with the instrument
58
4.1.3 Installing MAS on P C
•
Close all programs on your PC.
•
Insert the MAS CD-Rom into the CD-Rom drive.
•
•
Wait for the MAS Installation program to automatically start.
OR
Run the MAS Install.exe program located on the CD-Rom.
Follow the instructions given to complete the installation.
59
4.2 STARTING UP MAS
4.2.1 Starting up
•
Click Start ! Programs ! MAS-3000 ! MAS-3000 5.00
4.2.2 Configuring PC CO M port
•
To allow data transfer between the instrument and the PC, you
must first configure your PC COM port as follows:
•
Connect the instrument to one of the COM ports using the datatransfer cable and power up the instrument .
•
Click Tools menu! Configure COM port.
•
Select the COM port that the instrument is connected to.
•
Select a baud rate. The baud rate is the speed (in bits/second) at
which data is transferred. The lower the baud rate, the less likely
are data-transfer errors. Automatic is the default choice as it is
sufficient for normal transfers.
•
Click Test port
•
Click Yes in the Confirm window to test the connection.
Connection failure may be due to the selection of the wrong
COM port in MAS, the instrument being not powered up,
connectors being not plugged in properly, or the PC serial port
being not set up properly. If the connection is good, continue as
follows:
•
Click OK in the second confirm window to acknowledge that the
instrument is attached to the COM port.
•
Click OK to leave the MAS Configuration window.
60
4.3 TRANSFERR ING DATA TO
THE PC
Data transferred to the PC is stored in MAS files. These are text files
and have the .mas extension.
To transfer data from the instrument to the PC:
•
Turn on the instrument Check its battery capacity and if less than
30%, charge the battery pack.
•
Connect the RS232 port of the instrument to the configured PC
COM port using the data-transfer cable. On the PC click the
Receive button.
•
On the instrument , press File menu! Examine Files… Use the
arrow keys to select the individual recording or folder to be
transfered. If a folder is highlighted, all recordings within the
folder will be transferred.
•
Press
SndToPC to send the selected recording or folder.
Once the data-transfer is complete, the data will appear in the
current file in MAS or if no files were open, the data will appear in
a new file.
•
To append more data from the instrument to the current file, click
the Receive button.
•
Alternatively, to receive more data but in its own new file, click
File menu ! Receive from MMS ! Transfer to a New File.
•
To save the data in the current file, click the Save button, name
the file and click Save. If the file was an already existing file,
clicking the Save button will automatically save the file under the
same name and in the same location on the PC.
61
4.4 MANAGING D ATA
4.4.1 Opening a File
•
Click Open button and select the file.
4.4.2 Merging Two Files
•
Open one of the files.
•
Click File menu! Import & Merge a file… and select the other
file to be merged into the open file.
The merged data can be viewed but is not automatically saved on
the computer. To save it, click File menu! Save or Save As.
4.4.3 Using the Navigato r
When a file is open, the navigator that consists of two boxes is
displayed on the left side of the screen. The top box shows all the
folders in the file. The bottom box shows all the recordings in the
selected (highlighted) folder above.
4.4.4 Deleting Data from a Folder
•
Select the folder in the Folder section of the navigator.
•
Using the navigator, select the individual recordings and/or
channels to be deleted.
•
Click File ! Delete, or press the Delete key. You will then be
prompted to confirm that you wish to delete the selected
recordings/channels
62
4.4.5 Editing Recording Details
•
Select the folder, and then the recordings and/or channels to be
edited.
•
Click the Info tab to access the Info page where you can edit the
User Details (eg. Company Name, instrument serial number…),
Folder Name, and the Recording Details (eg. recording name,
remarks, channel labels and units…).
•
From the Edit User Details screen there is access to edit the
Default User Details. These values are written to all future
recordings, while they are being transferred from the instrument .
4.4.6 Viewing and Printin g Data Values
•
Open the file and using the navigator, select the recordings
and/or channels to be viewed and/or printed.
•
Click the Values tab. The data in the selected recordings and/or
channels can now be viewed.
•
To change the value in a cell, click the cell and type in the new
value.
•
To reduce the amount of data by averaging, click the Average
button.
•
To print the data, click the Print button.
•
To copy the values to a spreadsheet program, click the Copy (to
clipboard) button, go to the Spreadsheet program and use its'
"Paste" command.
•
To print a report on the data, click File ! Summary Report or
Full Report** and select the print option in the Data Summary or
Report Generator window that appears.
§
§ The Summary report produces a data summary about the selected
recordings/channels. For more information consult the MAS help file.
63
4.4.7 Exporting data
•
In the Navigator select the folders or recordings to be exported
as a .mas file.
•
Click File ! Export and select the option required.
•
Provide the name and location of the export file to be produced
and then click the Save button.
** The Full report produces a printout of the pages selected in the report generator
window. For more information consult the MAS help file.
64
4.5 CALCULATIN G DATA
You can perform calculations on your recorded data by creating new
"calculated" channels:
•
Open the file and using the navigator, select the recordings
and/or channels to be used in calculations.
•
Click the Values tab to display the data and click the Calculate
button to access the Calculate window.
•
Each channel is automatically given a "tag" character that is
used to identify the channel. It is a letter of the alphabet that can
be used to reference the values of a recording for use in
calculations.
•
Expressions can then be derived using the provided functions
††
and the channel tags .
eg. TempChange = ChangePerHr(B) with units degC/hr
This example will create a channel called
"TempChange" which is calculated as the rate of
change per hour of the channel which has tag 'B'.
•
Constants can also be used in calculations. You may need to
use constants in your expressions, for example:
To find the "difference from the mean value" for a particular channel,
say the channel represented by "tag" 'D'.
A constant should be defined to provide the mean value of
channel 'D', "K0 = Mean(D)"
This constant is then used in the expression,
"DiffFromMean = D – K0"
†† See Appendix MAS-3000 MATH for a complete list of functions available.
65
4.6 PLOTTING DATA
4.6.1 Plotting Single and Individual Charts
•
Open the file and using the navigator, select the recordings
and/or channels to be plotted.
•
Select the Chart tab and click the Plot button. You can also plot a
recording or channel by double-clicking it in the navigator.
•
To display the selected recordings and/or channels on individual
charts, click the Individual button.
•
To change the format of charts, click the Adjust button to access
the Adjust Axes & Colors window. This window allows for
changes to be made to the axes and colors of the plotted
recordings displayed on the chart.
•
To clear all plotted recordings, click Chart menu ! Clear Chart.
To retain existing plots when adding to the chart, click the Hold
button. A maximum of 16 plots can be displayed at a time
To enlarge a chart, you can hide the legend by clicking Chart menu
! Show Legend. You can also Hide the navigator by clicking
Window menu ! Show Navigator.
66
4.6.2 Zooming & Pannin g
To zoom in on any part of a chart:
• Click a point to the left of that part of the chart and drag a
rectangle across and down to the right over the section to be
enlarged (while holding down the left mouse button). Release the
mouse button to perform the zoom.
To zoom in horizontally:
• Proceed as above, but only move the mouse directly up or down
to select the area to be enlarged. Two horizontal lines will be
displayed across the chart to indicate the selection.
To zoom in vertically:
• Proceed as above, but only move the mouse directly left or right
to select the area to be enlarged. Two vertical lines will be
displayed across the chart to indicate the selection.
To unzoom from any view:
• Left click on any point in the chart and drag a rectangle up and to
the left to display a rectangle with a cross in it. When the mouse
button is released all zooming will be undone and the chart will
be returned to its original view.
Panning
• The chart displayed can be dragged in any direction to display
sections that are hidden from the current view. To pan around
the chart click and hold down the right mouse button in the chart
display. The cursor will turn into a pointing hand icon. Drag the
mouse pointer in the direction that you wish to move the chart.
Note: If you move the cursor off the chart, you will have to release
the right mouse button and return it to within the chart
boundaries to continue panning.
4.6.3 Printing Charts
•
Click Print while the chart is displayed and choose the color
scheme for printing (e.g. Black & White, Full Color or Color on
White bkgnd)
67
4.6.4 Reading and Comp aring Values
To place cursors on charts to read the data values on curves:
•
Plot the recordings and/or channels on a single chart.
•
To place a cursor at a particular point on a curve, place the
mouse cursor at that point, follow the curve until a crosshair
appears, and then click the left mouse button. If the default
cursor options are used, the cursor comprises a horizontal and a
vertical dashed line, and the values indicated by the cursor are
displayed at the edge of the chart next to the dashed lines.
•
To move the cursor to a different point on the same curve, press
the horizontal arrow keys. To move in small steps, hold down the
Ctrl key when pressing the horizontal arrow keys. You can also
move the cursor by clicking the left mouse button on the new
point (first allowing a crosshair to appear).
•
To move the cursor to a different curve, push the vertical arrow
keys. Alternatively, click the left mouse button on the new curve,
or on the appropriate symbol on the legend.
•
To place a second cursor on the chart, place the mouse cursor
at the point of interest, follow the curve until a crosshair appears,
and then click the right mouse button. If the default cursor
options are used, the difference between the values indicated by
the cursors is shown at the top right corner of the chart. Cursor A
corresponds to left mouse button and cursor B to the right.
•
To toggle the focus between the cursors, push the space bar, a
cursor must be focused before it can be moved using the arrow
keys. A cursor is focused if it has a rectangular target.
•
To clear the cursors, push the Esc key.
•
To change cursor options, click Chart menu ! Cursor Options....
68
EXAMPLE: a two-channelled temperature recording with both
cursors displayed (using the default cursor options).
Each cursor displays the x and y axis values and the difference in
both the x and y axis values of the two cursors in the top right hand
side of the chart.
69
4.6.5 Plotting Waterfall C harts
•
Plot the recordings and/or channels on a single chart.
•
Click Chart menu ! Waterfall Chart and select the depth
required.
Waterfall charts are useful for trending data behaviour. As on
ordinary charts, cursor and zooming functions can be used on
waterfall charts.
EXAMPLE: the four curves on the waterfall chart below correspond
to three sets of data pertaining to the same measurement point. It
can be seen that the peak value has a rising trend.
70
4.7 UPGRADING FIRMWARE
When an upgraded instrument firmware version is available, it will be
posted on the COMMTEST INSTRUMENTS website. Once you have
obtained the firmware file, the firmware can be upgraded using the
PROFLASH procedure below.
WARNING: Upgrading the firmware erases all data in the instrument.
•
Check the instrument battery capacity and if it is less than 30%
charge the battery pack.
•
Connect the RS232 port of the instrument to the configured PC
COM port using the data-transfer cable.
•
Power up the instrument and transfer any data you wish to keep
to MAS on a PC.
•
In MAS click Tools menu! PROFLASH MMS. In the PROFLASH
window click the PROFLASH button! Automatic search.
•
Click Select Drive to Search and select the drive where the new
firmware version is located.
71
•
Click Start Search, and when the search is completed select the
new firmware file.
•
Click Start proflash using this file.
Once the proflashing is complete, the instrument will beep and the
Initialisation screen will appear. If an error occurs, check that the
data-transfer cable has been connected properly and that the
instrument is powered up.
72
Appendix
SPECIFICATIONS
The following are the specifications for:
•
instrument firmware version 2.10
•
MAS software version 5.00
These specifications may be changed in future versions.
73
Specifications
Model: MMS3000-T4
Incorporating 4 Temperature Channels
Remarks
Range
T Type Thermocouple
E Type Thermocouple
J Type Thermocouple
K Type Thermocouple
-418 to +743°F
-418 to +1823°F
-346 to +2183°F
-418 to +2498°F
Temperature
Resolution
Above -148°F (-100°C): 0.1°F or °C
At or below -148°F (-100°C): 1°F or °C
Temperature Accuracy
Above -148°F (-100°C): ±0.1% of reading ±0.9°F (0.5°C)
At or below -148°F (-100°C): ±1% of reading ±0.9°F (0.5°C)
Minimum
Interval
Sampling
Data Logging
Data Storage Format
(-250 to +395°C)
(-250 to +995°C)
(-210 to +1195°C)
(-250 to +1370°C)
Operating temperature range is determined by
operating
range of thermocouple.
Effective resolution decreases at or below -148°F (100°C).
Temperature measurement accuracy depends on
Only
MMS3000-T4 and thermocouple accuracy.
MMS3000-T4 accuracy is given here. MMS3000-T4
temperature 73 ± 9°F (23 ± 5°C), charger off. See
Appendix Optimizing Temperature Accuracy.
Number of channels selected
(user-selectable)
Temperature or temperature and
voltage channels selected
(seconds)
1
2
3
4
0.2
0.3
0.5
0.6
Minimum time to scan all selected channels - not
each channel.
Sampling interval is programmable from 0.2 seconds
to 60 hours.
Up to 50 named folders
Multiple recordings per folder
Recording length: 1 sample … entire memory
Data Storage
512 kilobytes – approximately 400,000 individual data points
Folder Name
Up to 16 alphanumeric characters
Display
Resolution
Viewing Area
Backlight
LCD with graphic capabilities
240 x 128 pixels
4.3" x 2.3" (110mm x 60mm)
Electro-luminescent
PROFL AS H
Allows internal firmware to be upgraded via built-in serial port
Communications
Baud Rate
RS232
9600, 19200, 57600 bits per second
Channel Organization
Any combination of up to 4 channels for any recording
User-specified name entered from keypad.
Each recording has unique time/date stamp.
Supports long recordings by chaining 60,000 data
point recordings. Each ample contains one data point
per channel.
Non-volatile memory (battery backup). Number of
samples depends on the number of recordings and
the variability of the readings.
Download firmware updates from the Commtest
website.
15kV ESD protected. Cable with DB9 connector
included. Automatic baud rate selection.
Input Termination
Input Impedance
Sockets accept miniature thermocouple twin blade plug
Blades spaced 5/16" (7.9mm) center-to-center.
Channels 1, 2, 3, & 4: greater than 100kΩ
Terminal-to-terminal.
Between inputs and MMS3000-T4 outputs e.g.
RS232 port. No isolation between channels.
Isolation
50VDC minimum
Battery
Type
Voltage
Capacity
Operating Time
Custom Nickel-Cadmium pack
7.2V nominal
1500mAh nominal
13 hours nominal with backlight off, 7 hours nominal with backlight on
Charger & Conditioner
Fast Charge Rate
Discharge Rate
Built-in dual rate charger – automatic and manual control
0.7A nominal
0.5A nominal
Power transformer (13.5 ± 1.5VDC, 1A output)
included in kit.
2.5 hours for complete charge nominal.
Combats Ni-Cad battery memory effect.
Mechanical
Size
Weight
9.7" W x 6.1" L x 3.0" H (247mm x 154mm x 75mm)
4.4lb (2kg)
Including protective boot.
Including protective boot and strap.
Environmental
Temperature/Humidity
Operating
32°F to 122°F (0°C to 50°C) / 80% RH 32°F to 86°F
70% RH 32°F to 122°F
14°F to 140°F (-10°C to 60°C) / 95% RH
EN50081-1
EN50082-1
© 2001 COMMTEST INSTRUMENTS Ltd.
Storage
EMC
74
Non-condensing.
Non-condensing.
Radiated and conducted emissions.
RF field, ESD and fast transient immunity.
The manufacturer reserves the right to modify specifications
Appendix
Application Notes
6.1 Application N ote 1
Using the T4 Module’s Inputs
The T4 module’s internal circuitry measures low level signals from one of
four differential input channels which are multiplexed into the A/D converter.
All channels are isolated from MMS3000 internal circuitry and the serial
cable, battery etc. If only one channel is connected, then there is no need to
consider the effects of common mode voltage or AC noise.
However, the channels are not isolated from each other. Each channel has
differential inputs (i.e. they measure the voltage between +ve to -ve), which
allows non-isolated thermocouples to be used provided that they are not
connected to electrical conductors of potentials greater than 10VDC relative
to each other.
Connecting non-isolated thermocouples to electrical
conductors of different potentials introduces an error called “common mode
error”.
WARNING:
Do not connect a non-isolated thermocouple to any
electrical conductor of voltage greater than SELV relative to earth (see
Section 5). The isolation within the T4 module is not intended to
protect the user from hazardous voltages.
To avoid damage: Do not apply more than 10V between any of the 4
thermocouple input pins (this would damage the protection diodes in the
multiplexer – see the “T4 module equivalent input circuit” diagram below).
Example: To measure the temperatures of both terminals of a 12V battery it
is essential to use isolated thermocouples.
75
To minimize common mode errors: Ensure the voltage difference between
channels is as small as possible. The best way to do this is to electrically
isolate (but thermally couple) the thermocouples from voltage sources. For
example, when measuring the temperature of both sides of a power diode
(less than 1V across it) that is continuously conducting, it is alright to solder
the thermocouples on. If however the diode is rectifying AC, at least one of
the thermocouples needs to be electrically isolated.
To avoid problems with common mode noise: (See Application Note 2)
When isolating thermocouples, ensure that the insulation impedance of this
isolation is significantly higher than the MMS3000’s input impedance (for AC
signals too). If this is not so, common mode voltages applied may be larger
than when they were not isolated. Example: thermocouple runs, when
isolated, may act as aerials and pick up large AC voltages (say 50VAC)
which would overload the input multiplexer, resulting in erroneous readings
or even damage.
T4 Module Equivalent Input Circuit
Protection
Diodes
+5V
Four dedicated
thermocouple
inputs like this
Switch
Array
1nF
1nF
Module Isolated Ground
-5V
A/D
Inputs
+
-
150kΩ
equivalent input
structure
76
Example on Application Note 1: Measuring case temperature of both
sides of a continuously forward conducting power diode while it is operating
at SELV (safety extra low voltage).
Thermocouple
1
2
+
3
+
4
+
+
See MENU for Thermocouple Types
77
Application Note 2
Grounding
In an industrial environment, it is common to have AC and/or DC voltages
between conductive surfaces that are not bonded together. Conductors that
are assumed to be isolated may in fact have a DC leakage, a 50Hz/60Hz AC
voltage from inductive or capacitive coupling, or a continual presence or
bursts of r.f. voltage (emc).
In such an environment, it is recommended that the metal surface to which
the thermocouple is connected, be grounded.
Example on Application Note 2: Connecting thermocouple to conductive
surfaces in a noisy environment.
Thermocouple 2
Metal Surface
Ground
Thermocouple 1
Metal Surface
Ground
1
2
3
4
See MENU for Thermocouple Types
78
Appendix
Optimizing Temperature
Accuracy
For optimum accuracy when measuring temperature, the instrument
internal temperature needs to be stabilized.
This is best achieved by connecting the thermocouple, turning the
instrument on and then leaving it on for 30 minutes‡‡.
Begin your actual measurement or recording immediately after the 30-minute
stabilization period.
For optimum accuracy, the battery charger should not be operated while
measuring temperature.
‡‡ The “power saver” must first be turned off – see Section 3.4.6 for more details.
79
80
Appendix
MAS-3000 MATH
The following are the mathematical functions and operators that can be used
in MAS-3000 calculations.
The symbols A,B,C,… represent channel tags; and L1, L2, …, Ln represent
logical expressions (e.g. int(A) > 3).
The notation used for functions and operators is similar to that used in
common computer-programming languages and spreadsheet programs.
81
8.1 FUNCTIONS
8.1.1 Mathematical Func tions
Function
Meaning
Abs(A)
Absolute value
Cos(A)
Cosine
Deg(A)
Convert from radians to degrees
DegC_to_DegF(A)
Converts Celsius to Fahrenheit
DegF_to_DegC(A)
Converts Fahrenheit to Celsius
Exp1
Base of natural logarithm, e (constant)
Exp(A)
Exponent
Frac(A)
Fractional part
Int(A)
Integer part
Ln(A)
Natural logarithm
Log(A)
Base 10 logarithm
Max(A, B, … )
Return the maximum value
Min(A, B, … )
Return the minimum value
N
Sample number (starting from zero)
Pi
π (constant)
Power(base, power)
base to the power of power e.g.
Pow(A,3) gives A
3
Pow(3,k1)
Pow(A,B)
Rad(A)
Convert from degrees to radians
Round(A)
Rounded value
Sgn(A)
Sign (-1 if negative; +1 if positive; 0 if zero)
Sin(A)
Sine
82
Function
Meaning
Sqr(A)
Square
Sqrt(A)
Square root
Tan(A)
Tangent
ChangePerDay(A)
Rate of change (differentiation)
ChangePerHrs(A)
e.g. If channel ‘A’ changes smoothly from 10 to
25
over
a
1
minute
period,
then
ChangePerMin(A) will be 15 over that period.
ChangePerMin
ChangePerSec
SumOverDays
Summation over time (integration)
SumOverHrs
e.g. If channel ‘A’ is a 2hr recording with all
values = 3.5, then SumOverHrs(A) changes
smoothly from 0 to 7 over the recording.
SumOverMins
SumOverSecs
83
8.1.2 Iterative Functions
The following iterative functions can be used for constants only. Cell level
expressions cannot contain iterative functions.
Function
Meaning
Count(A)
Number of samples
Maxsample(A)
Maximum sample value
Mean(A)
Mean
Minsample(A)
Minimum sample value
Stddev(A)
Standard deviation
Sum(A)
Sum
8.1.3 Logical Functions
Function
Meaning
AND(L1, L2, …, Ln)
Logical AND e.g.
AND(n = 10, k2 > 0.5, k3 > 0.5, k2 <> k3)
False
Logical constant, has value 0
OR(L1, L2, …, Ln)
Logical OR e.g.
OR(k0 = True, k1 < 3, n >= 30)
True
Logical constant, has value 1
AOR(L1, L2, …, Ln)
Logical AOR (exclusive OR) e.g.
AOR(k0 = True, k1 < 3, n >= 30)
NOT(L1, L2, …, Ln)
Logical NOT e.g.
NOT(k1 =True, k2< 10, n>30)
84
8.1.4 Conditional Functio ns
Function
Meaning
IF(L1, true result, false result)
If logical expression L1 is true,
execute true result, otherwise
execute false result e.g.
IF(k2 > k3, k2*A, k3*A)
IF(k0 = True, n, n*2)
IF(n < 10, n, Log(n))
8.1.5 Date and Time Fun ctions
In MAS-3000, the date and time value of when a sample is taken is a floatingpoint number. The integer part of the number represents the date: it is the
number of days since the first day of 1 AD. The fractional part of the number
represents the time: it is the proportion of time that has passed since the
beginning of the day.
Function
Meaning
Date(year, month, day)
Return the date in MAS-3000 format
e.g.
Date(1999, 07, 25)
Time(hour, minute, second, ms)
Return the time in MAS-3000 format
e.g.
Time(16, 59, 31, 965)
Elapsed(sample number)
Return the date and time of the
sample in MAS-3000 format e.g.
DAT(36)
SampleDate(n)
Date of the nth sample
SampleTime(n)
Time of the nth sample
85
8.2 OPERATORS
8.2.1 Logical Operators
Operator
Meaning
<
Less than
<=
Less than or equal to
<>
Not equal to
=
Equal to
>=
Greater than or equal to
>
Greater than
8.2.2 Arithmetic Operato rs
Operator
Meaning
+
Addition
–
Subtraction
/
Division
*
Multiplication
The order of precedence is as in standard arithmetic (i.e. /, *, +, –). An
operand between two operators of different precedence is bound to the
operator with higher precedence. An operand between two equal operators
is bound to the one on its left. Expressions within parentheses are evaluated
before being treated as a single operand.
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