- Industrial & lab equipment
- Measuring, testing & control
- M4 Instruments
- Axis 15
- Quick start Guide
- 48 Pages
M4 Instruments Axis 15 Multi-Parameter Analyzer Quick Start Guide
The Axis 15 is a 4-wire analyzer for process analysis applications. It comes as a basic device for measurement with digital sensors (Memosens, optical oxygen measurement, inductive conductivity measurement). All measuring functions are stored in an internal memory. You select a measuring function to configure the analyzer for a specific measuring task. Additional measuring modules can be connected to allow measurement with analog sensors. The Model A402B allows applications in hazardous-area Zone 2.
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MULTI-PARAMETER ANALYZER
MULTI-PARAMETER ANALYZER
Axis 15
Quick Start Guide
Quick Start Guide
Before operating this unit, please read the quick start guide
A full version of the manual is available at www.m4instruments.com.
A full version of the manual is available at www.m4instruments.com.
50 W. Technecenter Dr., Suite B-1 | Milford, OH 45150 toll: (888) 483-7532 | fax: (513) 833-2507 | www.m4instruments.com
50 W. Technecenter Dr., Suite B-1 | Milford, OH 45150 toll: (888) 483-7532 | fax: (513) 833-2507 | www.m4instruments.com
2
Introduction
3
AXIS 15 is a 4-wire analyzer for process analysis applications.
The analyzer comes as basic device for measurement with digital sensors
( Memosens, optical oxygen measurement, inductive conductivity measurement).
All measuring functions are stored in an internal memory. You select a measuring function to confi gure the analyzer for a specifi c measuring task. Additional measuring modules can be connected to allow measurement with analog sensors.
The Model A402B allows applications in hazardous-area Zone 2.
Current is provided through a universal power supply 80 ... 230 V AC, 45 ... 65 Hz /
24 ... 60 V DC. The analyzer provides two 0 (4) .... 20 mA current outputs for transmission of measured value and temperature, for example. Four fl oating relay contacts are available for free confi guration. A PID controller and a time-controlled cleaning function can be confi gured. Two parameter sets are provided. You can externally switch between them via the Control input, for example. The HOLD input allows setting the HOLD mode from the outside. The analyzer also provides power supply and allows signal processing for additional 2-wire transmitters, e.g. for pressure and temperature.
You can select one of the following measuring functions:
• pH
• ORP
• Dissolved oxygen (also supply and operation of optical DO sensors, e.g. SE 740)
• Contacting conductivity measurement
• Electrodeless (inductive) conductivity measurement
• Dual measurement of pH/pH and pH/Oxy using two Memosens sensors
Enclosure and mounting possibilities
• The sturdy molded enclosure is rated IP 67/NEMA 4X outdoor.
Material of front unit: PBT, rear unit: PC.
Dimensions: H 148 mm, W 148 mm, D 117 mm.
It is provided with knockouts for:
• panel mounting (138 mm x 138 mm cutout to DIN 43700)
• wall mounting (with sealing plugs to seal the enclosure)
• post/pipe mounting (dia. 40 … 60 mm, 30 … 45 mm)
Connection of sensors, cable glands
For connecting the cables, the enclosure provides
• 3 knockouts for cable glands M20x1.5
• 2 knockouts for NPT 1/2” or rigid metallic conduit
4
Introduction
Display
Plain-text messages in a large, backlit LC display allow intuitive operation.
You can specify which values are to be displayed in standard measuring mode
(“Main Display”).
Color-coded user interface
The colored display backlighting signals diff erent operating states (e.g. alarm: red,
HOLD mode: orange).
Diagnostics functions
Diagnostics functions are provided by the “Sensocheck“ automatic monitoring of glass and reference electrode and the “Sensoface“ function for clear indication of the sensor condition.
Data Logger
The internal logbook (additional function, TAN SW-A002) can handle up to
100 entries – up to 200 with AuditTrail (additional function, TAN SW-A003).
2 parameter sets A/B
The device provides two parameter sets which can be switched manually or via a control input for diff erent process adaptations or diff erent process conditions.
For an overview of parameter sets (original for copy), refer to www.m4instruments.com.
Password protection
Password protection (passcode) for granting access rights during operation can be confi gured.
Automatic calibration with Calimatic
You can choose from the most commonly used buff er solutions.
In addition, you can enter an individual buff er set.
4
Introduction
Display
Plain-text messages in a large, backlit LC display allow intuitive operation.
You can specify which values are to be displayed in standard measuring mode
(“Main Display”).
Color-coded user interface
The colored display backlighting signals diff erent operating states (e.g. alarm: red,
HOLD mode: orange).
Diagnostics functions
Diagnostics functions are provided by the “Sensocheck“ automatic monitoring of glass and reference electrode and the “Sensoface“ function for clear indication of the sensor condition.
Data Logger
The internal logbook (additional function, TAN SW-A002) can handle up to
100 entries – up to 200 with AuditTrail (additional function, TAN SW-A003).
2 parameter sets A/B
The device provides two parameter sets which can be switched manually or via a control input for diff erent process adaptations or diff erent process conditions.
For an overview of parameter sets (original for copy), refer to www.m4instruments.com.
Password protection
Password protection (passcode) for granting access rights during operation can be confi gured.
Automatic calibration with Calimatic
You can choose from the most commonly used buff er solutions.
In addition, you can enter an individual buff er set.
Introduction
5
Control inputs
6
7
Current
input
I input
The analog (0) 4 ... 20 mA current input can be used for external pressure or temperature compensation
(TAN required).
11
HOLD
input
12
CONTROL
13
input
HOLD
(floating digital control input)
The HOLD input can be used for external activation of the HOLD mode.
CONTROL
(floating digital control input)
The CONTROL input can be used either for parameter set selection (A/B) or for flow monitoring.
The “Wash” contact can be used for indicating the active parameter set.
Power supply
Current is provided through a universal power supply 80 ... 230 V AC,
45 ... 65 Hz/ 24 ... 60 V DC.
Options
Additional functions can be activated by entering a TAN.
6
Introduction
Signal outputs
The analyzer provides two 0 (4) .... 20 mA current outputs for transmission of
measured value and temperature, for example.
Relay contacts
Four fl oating relay contacts are available.
Current outputs
The floating current outputs (0) 4 ... 20 mA are used for transmitting measured values. An output filter can be programmed, the fault current value can be specified.
Output 1
10
Output 2
Alarm
Wash
9
8
14
15
16
17
18
19
20
Relay contacts
2 relay contacts for limit values. Adjustable for the selected process variable: hysteresis, switching
behavior (MIN/MAX limit), contact type (N/O, N/C) and delay.
Alarm
An alarm can be generated by Sensocheck, flow monitoring or current failure.
Wash (cleaning function)
This contact can be used for controlling a rinsing probe or for indicating the active parameter set.
PID controller
Confi gurable as pulse length or pulse frequency controller.
6
Introduction
Signal outputs
The analyzer provides two 0 (4) .... 20 mA current outputs for transmission of
measured value and temperature, for example.
Relay contacts
Four fl oating relay contacts are available.
Current outputs
The floating current outputs (0) 4 ... 20 mA are used for transmitting measured values. An output filter can be programmed, the fault current value can be specified.
Output 1
10
Output 2
Alarm
Wash
9
8
14
15
16
17
18
19
20
Relay contacts
2 relay contacts for limit values. Adjustable for the selected process variable: hysteresis, switching
behavior (MIN/MAX limit), contact type (N/O, N/C) and delay.
Alarm
An alarm can be generated by Sensocheck, flow monitoring or current failure.
Wash (cleaning function)
This contact can be used for controlling a rinsing probe or for indicating the active parameter set.
PID controller
Confi gurable as pulse length or pulse frequency controller.
Typical Application of AXIS 15
7
or M
Sensor Rinsing sy
8
Overview of the AXIS 15
Package Contents
Check the shipment for transport damage and completeness.
The package should contain:
Front unit, rear unit, bag containing small parts
Specifi c test report
Documentation
11
10
9
8
7 6 5 4
Fig.: Assembling the enclosure
1) Jumper (3 x)
2) Washer (1 x), for conduit mounting:
Place washer between enclosure and nut
3) Cable tie (3 x)
4) Hinge pin (1 x), insertable from either side
5) Enclosure screw (4 x)
6) Sealing insert (1 x)
7) Rubber reducer (1 x)
8) Cable gland (3 x)
9) Filler plug (3 x)
10) Hexagon nut (5 x)
11) Sealing plug (2 x), for sealing in case of wall mounting
1
2
3
8
Overview of the AXIS 15
Package Contents
Check the shipment for transport damage and completeness.
The package should contain:
Front unit, rear unit, bag containing small parts
Specifi c test report
Documentation
11
10
9
8
7 6 5 4
Fig.: Assembling the enclosure
1) Jumper (3 x)
2) Washer (1 x), for conduit mounting:
Place washer between enclosure and nut
3) Cable tie (3 x)
4) Hinge pin (1 x), insertable from either side
5) Enclosure screw (4 x)
6) Sealing insert (1 x)
7) Rubber reducer (1 x)
8) Cable gland (3 x)
9) Filler plug (3 x)
10) Hexagon nut (5 x)
11) Sealing plug (2 x), for sealing in case of wall mounting
1
2
3
Overview of the AXIS 15
Mounting Plan, Dimensions
5.8" (148 mm)
4.6" (117 mm)
1.6" (41 mm)
1.3" (34 mm)
1.6" (42 mm)
1.6" (42 mm) 1.6" (42 mm)
3.1" (80 mm)
1.7" (43 mm)
1) Cable gland (3 x)
2) Knockout for cable gland or ½“ conduit, dia. 21.5 mm (2 knockouts).
Conduits not included!
3) Knockout for pipe mounting
(4 x)
4) Knockout for wall mounting
(2 x)
Mounting Accessories
Pipe-mount kit, accessory ZU 0274
Protective hood for wall and pipe mounting, accessory ZU 0737
Panel-mount kit, accessory ZU 0738
9
10
For connection of analog sensors:
Insert interchangeable module
(measuring module)
Slot for measuring module
Output 1
Output 2
R1
R2
10
9
8
14
15
16
Alarm
3
4
1
2
RS 485
Wash
17
18
19
20
5
6
7
11
12
13
HOLD
input
Control
input
Power
21
22
Modular Concept
10
For connection of analog sensors:
Insert interchangeable module
(measuring module)
Slot for measuring module
Output 1
Output 2
R1
R2
10
9
8
14
15
16
Alarm
3
4
1
2
RS 485
Wash
17
18
19
20
5
6
7
11
12
13
HOLD
input
Control
input
Power
21
22
Modular Concept Inserting a Module
11
Measuring modules for connection of analog sensors: pH, dissolved oxygen, conductivity
Measuring modules for the connection of analog sensors are simply inserted into the module slot. Upon initial start-up, the analyzer automatically recognizes the module and adjusts the software correspondingly. When you replace the measuring module, you must select the corresponding measuring function in the “Service” menu.
Multi-channel module for connection of analog sensors:
Dual conductivity
For this module, you must select the operating mode (“device type”) in the
confi guration menu.
Measuring module for 2nd Memosens channel
If you want to measure two process variables using Memosens sensors, you must insert a Memosens module for the second channel. The operating mode for multichannel measurement (“device type”) must be selected in the confi guration menu.
The following combinations are possible:
Memosens pH + Memosens pH
Memosens pH + Memosens Oxy
12
pH, DO Modules
A
B
C
D
E
F
I
K
G
H
pH/mV/ temp input
+3 V/
–3 V for ISFET adapter
G
H
I
D
E
F
A
B
C
Oxy input
Module for pH measurement
Order code MK-PH015
For wiring examples, see www.m4instruments.com.
Module for dissolved-oxygen measurement
Order code MK-OXY045
For wiring examples, see www.m4instruments.com.
Terminal plate of pH module
The terminals are suitable for single or
stranded wires up to 2.5 mm
2
(AWG 14).
Terminal plate of DO module
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
12
pH, DO Modules
A
B
C
D
E
F
I
K
G
H
pH/mV/ temp input
+3 V/
–3 V for ISFET adapter
G
H
I
D
E
F
A
B
C
Oxy input
Module for pH measurement
Order code MK-PH015
For wiring examples, see www.m4instruments.com.
Module for dissolved-oxygen measurement
Order code MK-OXY045
For wiring examples, see www.m4instruments.com.
Conductivity Modules
13
D
E
F
G
H
A
B
C
Cond input
Module for contacting conductivity
measurement (COND)
Order code MK-COND025
For wiring examples, www.m4instruments.com.
F
G
H
A
B
C
D
E
CONDI input
Module for inductive conductivity
measurement (CONDI)
Order code MK-CONDI035
For wiring examples, see www.m4instruments.com.
Terminal plate of pH module
The terminals are suitable for single or
stranded wires up to 2.5 mm
2
(AWG 14).
Terminal plate of DO module
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
Terminal plate of COND module
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
Terminal plate of CONDI module
The terminals are suitable for single or
stranded wires up to 2.5 mm 2 (AWG 14).
14
Multi-Channel Modules
I
K
D
E
F
G
H
A
B
C
CC input
Power supply
A
B
C
D
E
Sensor B
“MK-MS“ module
Module for 2 x conductivity measurement
Order code MK-CC065
For wiring examples, see www.m4instruments.com.
Module for 2nd Memosens channel
Order code MK-MS
For wiring examples, see www.m4instruments.com.
Terminal plate for 2 x conductivity measurement
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
Terminal plate of module for 2nd Memosens channel
The terminals are suitable for single or
stranded wires up to 2.5 mm
2
(AWG 14).
14
Multi-Channel Modules
I
K
D
E
F
G
H
A
B
C
CC input
Power supply
A
B
C
D
E
Sensor B
“MK-MS“ module
Module for 2 x conductivity measurement
Order code MK-CC065
For wiring examples, see www.m4instruments.com.
Module for 2nd Memosens channel
Order code MK-MS
For wiring examples, see www.m4instruments.com.
Digital Sensors: Memosens
15
Start-Up
When an MS sensor is connected, you will be prompted to select the desired
measuring function (a connected sensor will not be identifi ed automatically).
Changing the Measuring Function
In the “Service” menu you can select another measuring function at any time.
Calibration and Maintenance in the Lab
HandyLab Pilot software allows calibrating Memosens sensors under reproducible conditions at a PC in the lab. The sensor parameters are registered in a database.
Documenting and archiving meet the demands of FDA CFR 21 Part 11.
Detailed reports can be output as csv export for Excel. HandyLab Pilot is available as an accessory: www.m4instruments.com.
Terminal plate for 2 x conductivity measurement
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
Terminal plate of module for 2nd Memosens channel
The terminals are suitable for single or
stranded wires up to 2.5 mm
2
(AWG 14).
16
Connecting a Memosens Sensor
Standard connection (sensor A)
Brown
Green
Yellow
White/Transp.
Areas for placing the screwdriver to pull out the terminals
For dual devices
(2 measuring channels):
(MK-MS095 module)
Connection of sensor B
Brown
Green
Yellow
White
Transp.
Memosens Cable
Brown
Green
Yellow
White
Transparent
Power supply +
RS485 (A)
RS485 (B)
Power supply – (GND)
Shield
16
Connecting a Memosens Sensor
Standard connection (sensor A)
Brown
Green
Yellow
White/Transp.
Areas for placing the screwdriver to pull out the terminals
For dual devices
(2 measuring channels):
(MK-MS095 module)
Connection of sensor B
Brown
Green
Yellow
White
Transp.
Memosens Cable
Brown
Green
Yellow
White
Transparent
Power supply +
RS485 (A)
RS485 (B)
Power supply – (GND)
Shield
Memosens Cable CA/MS-...
17
Connecting cable for contactless inductive digital transmission of measured signals
(Memosens).
The connecting cable consists of an inductive connector for digital Memosens
sensors (bayonet lock). It allows connecting the ferrule-terminated wires from the sensor loop of the transmitter. Contactless inductive digital transmission of signals and energy eliminates the infl uence of humidity, electromagnetic fi elds and corrosion.
Specifi cations
Material
Cable diameter
Cable
Length
Process temperature
Ingress protection
TPE
6.3 mm
2x2, twisted wire pairs up to 100 m
–20 °C ... 135° C
IP 68
Order Codes
Cable type
Memosens cable
Memosens cable, Ex*
Cable length
3 m
5 m
10 m
20 m
3 m
5 m
Order code
MC-03
MC-05
MC-10
MC-20
MC-03X
MC-05X
10 m
20 m
MC-10X
MC-20X
Other lengths available on request.
*) Ex-certifi ed, ATEX II IG Ex ia IIC T3/T4/T6
The Type-Examination Certifi cate is enclosed with each Ex sensor.
18
Terminal Plate and Rating Plates
Terminal Assignments
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
A402N Rating Plate
A402B Rating Plate
18
Terminal Plate and Rating Plates
Terminal Assignments
The terminals are suitable for single or stranded wires up to 2.5 mm
2
(AWG 14).
A402N Rating Plate
A402B Rating Plate
Power Supply, Signal Assignments
19
Power Supply
Connect the power supply for AXIS 15 to terminals 21 and 22
(24 ... 230 V AC, 45 ... 65 Hz / 24 ... 80 V DC)
Terminal assignments
Memosens connection
Brown
Green
Yellow
White /
Shield
Areas for placing the screwdriver to pull out the terminals
Current outputs OUT1, OUT2
1 22
Figure:
Terminals, device opened, back of front unit
Relay contacts REL1, REL2
Connecting the Memosens Sensor
Connect the Memosens sensor to the RS-485 interface of the device.
Then select the measuring function. (When you change to another sensor type, you can change the measuring function in the “Service” menu.)
When you select the sensor in the Confi guration menu, the calibration data are read from the
sensor. They can later be modifi ed by calibration.
Power supply
20
Selecting the Measuring Function
Start-Up
Upon initial start-up, the analyzer automatically recognizes a connected module and adjusts the software correspondingly. When you replace the measuring module, you must select the corresponding measuring function in the “Service” menu.
This does not apply to the multi-channel module for dual conductivity measurement and to the connection of Memosens sensors. Here, you will be prompted to select the desired measuring function upon fi rst start-up.
Changing the Measuring Function
In the “Service” menu you can select another measuring function at any time.
20
Selecting the Measuring Function
Start-Up
Upon initial start-up, the analyzer automatically recognizes a connected module and adjusts the software correspondingly. When you replace the measuring module, you must select the corresponding measuring function in the “Service” menu.
This does not apply to the multi-channel module for dual conductivity measurement and to the connection of Memosens sensors. Here, you will be prompted to select the desired measuring function upon fi rst start-up.
Changing the Measuring Function
In the “Service” menu you can select another measuring function at any time.
Operation
21
Measuring Mode
Prerequisite: A Memosens sensor is connected or a measuring module is installed with a corresponding conventional sensor connected.
After the operating voltage has been connected, the analyzer automatically goes to
“Measuring“ mode. To call the measuring mode from another operating mode (e.g.
Diagnostics, Service): Hold meas key depressed (> 2 s).
Sensoface indicator
(sensor status)
Active parameter set
(confi guration)
Time
Mode indicator (measuring)
Hold meas key depressed for calling the measuring mode
(pressing once more switches the display)
Display indicates
OUT1: e.g. measured value
Display indicates
OUT2: e.g. temperature
enter key
Depending on the confi guration, one of the following displays can be set as
standard display for the measuring mode:
• Measured value, time and temperature (default setting)
• Measured value and tag number (“TAG”)
• Time and Date
• Output currents
Note: By pressing the meas key in measuring mode you can view the displays for approx. 60 sec.
Caution:
You must confi gure the analyzer for the respective measurement task.
22
The Keys and Their Function
Up / Down arrows
• Menu:
Increase/decrease a numeral
• Menu: Selection
meas
• Return to last menu level
• Directly to
measuring mode
(press > 2 s)
• Measuring mode: other display
enter
• Confi guration:
Confi rm entries, next confi guration step
• Calibration:
Continue program fl ow
IrDA
Interface
Left / Right arrows
• Menu:
Previous/next menu group
• Number entry:
Move between digits
info
• Retrieve information
• Show error messages
menu
• Measuring mode:
Call menu
22
The Keys and Their Function
Up / Down arrows
• Menu:
Increase/decrease a numeral
• Menu: Selection
meas
• Return to last menu level
• Directly to
measuring mode
(press > 2 s)
• Measuring mode: other display
enter
• Confi guration:
Confi rm entries, next confi guration step
• Calibration:
Continue program fl ow
IrDA
Interface
Left / Right arrows
• Menu:
Previous/next menu group
• Number entry:
Move between digits
info
• Retrieve information
• Show error messages
menu
• Measuring mode:
Call menu
The Display
MEMO SENS
1 Temperature
2 Sensocheck
3 Interval/response time
4 Sensor data
5 Sensocheck
6 Limit message:
Limit 1 or Limit 2
7 Alarm
8 Service
9 Parameter set
10 Calibration
11 Digital sensor
12 Waiting time running
13 Info available
14 HOLD mode active
15 Unit symbols
16 Main display
17 Secondary display
18 Proceed using enter
19 ISM sensor
20 Diagnostics
21 Confi guration mode
22 Calibration mode
23 Measuring mode
24 Sensoface
Signal Colors (Display Backlighting)
Red
Red blinking
Orange
Turquoise
Green
Purple
Alarm (in case of fault: display values blink)
Input error: illegal value or wrong passcode
HOLD mode (Calibration, Confi guration, Service)
Diagnostics
Info
Sensoface message
23
24
Display in Measuring Mode
The MAIN DISPLAY is the display which is shown in measuring mode. To call the
measuring mode from any other mode, hold the meas key depressed for at least 2 sec.
meas key
enter key
By pressing meas briefl y you can step through further displays such as tag number (TAG) or fl ow (L/h).
These displays are turquoise. After 60 sec they switch back to the main display.
approx. 2 s
Press enter to select a display as MAIN DIS-
PLAY.
The secondary display shows
“MAIN DISPLAY – NO”.
Use the UP / DOWN arrows to select
“MAIN DISPLAY – YES” and confi rm by pressing enter.
The display color changes to white.
This display is now shown in measuring mode.
24
Display in Measuring Mode
The MAIN DISPLAY is the display which is shown in measuring mode. To call the
measuring mode from any other mode, hold the meas key depressed for at least 2 sec.
meas key
enter key
By pressing meas briefl y you can step through further displays such as tag number (TAG) or fl ow (L/h).
These displays are turquoise. After 60 sec they switch back to the main display.
approx. 2 s
Press enter to select a display as MAIN DIS-
PLAY.
The secondary display shows
“MAIN DISPLAY – NO”.
Use the UP / DOWN arrows to select
“MAIN DISPLAY – YES” and confi rm by pressing enter.
The display color changes to white.
This display is now shown in measuring mode.
Color-Coded User Interface
25
The color-coded user interface guarantees increased operating safety.
Operating modes are clearly signaled.
The normal measuring mode is white. Information text appears on a green screen and the diagnostic menu appears on turquoise. The orange HOLD mode (e.g. during calibration) is quickly visible as is the magenta screen which indicates asset management messages for predictive diagnostics – such as maintenance request, pre-alarm and sensor wear.
The alarm status has a particularly noticeable red display color and is also signaled by fl ashing display values. Invalid inputs or false passcodes cause the entire display to blink red so that operating errors are noticeably reduced.
White:
Measuring mode
Red blinking:
Alarm, errors
Orange:
HOLD mode
Magenta:
Maintenance request
Turquoise:
Diagnostics
Green:
Information texts
26
Selecting the Mode / Entering Values
To select the operating mode:
1) Hold meas key depressed (> 2 s) (measuring mode)
2) Press menu key: the selection menu appears
3) Select operating mode using left / right arrow key
4) Press enter to confi rm the selected mode
Selection menu
Selected mode
(blinks)
4
1
3
2
To enter a value:
5) Select numeral: left / right arrow
6) Change numeral: up / down arrow
7) Confi rm entry by pressing enter
5
7
6
26
Selecting the Mode / Entering Values
To select the operating mode:
1) Hold meas key depressed (> 2 s) (measuring mode)
2) Press menu key: the selection menu appears
3) Select operating mode using left / right arrow key
4) Press enter to confi rm the selected mode
Selection menu
Selected mode
(blinks)
4
1
3
2
To enter a value:
5) Select numeral: left / right arrow
6) Change numeral: up / down arrow
7) Confi rm entry by pressing enter
5
7
6
Operating Modes
27
Diagnostics
Display of calibration data, display of sensor data, sensor monitor, performing a device self-test, viewing the logbook entries, display of hardware/software versions of the individual components. The logbook can store 100 events (00...99). They can be displayed directly on the device. The logbook can be extended to 200 entries using a
TAN (Option).
HOLD
Manual activation of HOLD mode, e.g. for replacing a sensor. The signal outputs adopt a defi ned state.
Calibration
Every sensor has typical characteristic values, which change in the course of the operating time. Calibration is required to supply a correct measured value. The device checks which value the sensor delivers when measuring in a known solution. When there is a deviation, the device can be “adjusted“. In that case, the device displays the
“actual“ value and internally corrects the measurement error of the sensor. Calibration must be repeated at regular intervals. The time between the calibration cycles depends on the load on the sensor. During calibration the device is in HOLD mode.
During calibration the device remains in the HOLD mode until it is stopped by the operator.
Confi guration
You must confi gure the analyzer for the respective measurement task. In the “Confi guration“ mode you select the measurement method, the connected sensor, the measuring range to be transmitted, and the conditions for warning and alarm messages. During confi guration the device is in HOLD mode.
Confi guration mode is automatically exited 20 minutes after the last keystroke.
The device returns to measuring mode.
Service
Maintenance functions (current source, relay test, controller test), IrDA operation, passcode assignment, device type selection, reset to factory settings, enabling of options (TAN).
28
HOLD Mode
The HOLD mode is a safety state during confi guration and calibration.
Output current is frozen (LAST) or set to a fi xed value (FIX).
Alarm and limit contacts are disabled.
The display backlighting turns orange, display icon:
Output signal response
• LAST: The output current is frozen at its last value. Recommended for short
confi guration procedures. The process should not change decisively during
confi guration. Changes are not noticed with this setting!
• FIX: The output current is set to a value that is noticeably diff erent from the
process value to signal the control system that the device is being worked at.
Output signal during HOLD:
Output current
[mA]
Output signal for HOLD
FIX setting = 21.0 mA
Output signal for HOLD
LAST setting
HOLD active HOLD active
Terminating the HOLD mode
The HOLD mode is exited by switching to measuring mode (hold meas key
depressed). The display reads “Good Bye“. After that, the HOLD mode is exited.
When the calibration mode is exited, a confi rmation prompt ensures that the
installation is ready for operation (e.g.: sensor reinstalled, located in process).
External activation of HOLD
The HOLD mode can be activated from outside by sending a signal to the HOLD input (e.g. from the process control system).
HOLD inactive
HOLD active
0...2 V AC/DC
10...30 V AC/DC
28
HOLD Mode
The HOLD mode is a safety state during confi guration and calibration.
Output current is frozen (LAST) or set to a fi xed value (FIX).
Alarm and limit contacts are disabled.
The display backlighting turns orange, display icon:
Output signal response
• LAST: The output current is frozen at its last value. Recommended for short
confi guration procedures. The process should not change decisively during
confi guration. Changes are not noticed with this setting!
• FIX: The output current is set to a value that is noticeably diff erent from the
process value to signal the control system that the device is being worked at.
Output signal during HOLD:
Output current
[mA]
Output signal for HOLD
FIX setting = 21.0 mA
Output signal for HOLD
LAST setting
HOLD active HOLD active
Terminating the HOLD mode
The HOLD mode is exited by switching to measuring mode (hold meas key
depressed). The display reads “Good Bye“. After that, the HOLD mode is exited.
When the calibration mode is exited, a confi rmation prompt ensures that the
installation is ready for operation (e.g.: sensor reinstalled, located in process).
External activation of HOLD
The HOLD mode can be activated from outside by sending a signal to the HOLD input (e.g. from the process control system).
HOLD inactive
HOLD active
0...2 V AC/DC
10...30 V AC/DC
Alarm and HOLD Messages
29
Alarm
When an error has occurred, Err xx is displayed immediately.
Only after expiry of a user-defi ned delay time will the alarm be registered and
entered in the logbook.
During an alarm the display blinks, the display backlighting turns red.
Error messages can also be signaled by a 22 mA output current (when confi gured correspondingly).
The alarm contact is activated by alarm or power failure. 2 sec after the failure event is corrected, the alarm status will be deleted.
The 22-mA signal can also be triggered by Sensoface messages (confi gurable).
Generating a message via the CONTROL input
(min. fl ow / max. fl ow)
The CONTROL input can be used for parameter set selection or for fl ow measurement (pulse principle), depending on its assignment in the “Confi guration” menu.
When preset to fl ow measurement an alarm can be generated when the measured fl ow exceeds a specifi ed range:
(specify value, default: 5 liters/h)
(specify value, default: 25 liters/h)
Power supply (PWR out)
12...24 V AC/DC
CONTROL
13
12
input
AXIS 15 A402
30
Operating Modes / Functions

Measuring mode
(main display selectable)
TAG display after 60 s
CLK display after 60 s
Controller parameter display
(if configured)
Pressing the menu key (down arrow) opens the selection menu.
Select the menu group using the left/right arrow keys.
Pressing enter opens a menu item. Press meas to return.
Display of calibration data
Display of sensor data
Self test: RAM, ROM, EEPROM, module
100 events with date and time
Display of direct sensor values
Display of software version, model designation, serial number

Manual activation of HOLD mode, e.g. for sensor replacement.
The signal outputs behave as configured (e.g. last measured value, 21 mA)
 pH adjustment / ORP adjustment / product calibration
Adjustment (WTR/AIR) / zero adjustment / prod. cal.
Adjustment with solution / cell factor input / prod. cal.
Adjustment of temperature probe

For configuring parameter set A / B see “Overview of Configuration” on next page.

(Access via code, factory setting:
5555)
Display of measured values for validation (simulators)
Sensor (resetting diagnostics messages)
Selecting the output voltage (3.1 V / 12 V / 15 V / 24 V)
Current source, output 1
Current source, output 2
Relay test
Controller: manual specification of controller output
IrDA activation
Specifying access codes for operating modes
Selecting the device type
Reset to factory setting
Enabling an option via TAN
30
Operating Modes / Functions

Measuring mode
(main display selectable)
TAG display after 60 s
CLK display after 60 s
Controller parameter display
(if configured)
Pressing the menu key (down arrow) opens the selection menu.
Select the menu group using the left/right arrow keys.
Pressing enter opens a menu item. Press meas to return.
Display of calibration data
Display of sensor data
Self test: RAM, ROM, EEPROM, module
100 events with date and time
Display of direct sensor values
Display of software version, model designation, serial number

Manual activation of HOLD mode, e.g. for sensor replacement.
The signal outputs behave as configured (e.g. last measured value, 21 mA)
 pH adjustment / ORP adjustment / product calibration
Adjustment (WTR/AIR) / zero adjustment / prod. cal.
Adjustment with solution / cell factor input / prod. cal.
Adjustment of temperature probe

For configuring parameter set A / B see “Overview of Configuration” on next page.

(Access via code, factory setting:
5555)
Display of measured values for validation (simulators)
Sensor (resetting diagnostics messages)
Selecting the output voltage (3.1 V / 12 V / 15 V / 24 V)
Current source, output 1
Current source, output 2
Relay test
Controller: manual specification of controller output
IrDA activation
Specifying access codes for operating modes
Selecting the device type
Reset to factory setting
Enabling an option via TAN
Overview of Confi guration
31
The confi guration steps are assigned to diff erent menu groups. Using the left/right arrow keys, you can jump between the individual menu groups. Each menu group contains menu items for setting the parameters. Pressing enter opens a menu item.
Use the arrow keys to edit a value. Press enter to confi rm/save the settings.
Return to measurement: Hold meas key depressed (> 2 s).
Select menu group
Menu group
Sensor selection
(multi-channel device: select sensor A / sensor B)
Code
Menu item 1
Display
Menu item ...
Current output 1
Current output 2
Compensation
Control input
(parameter set or flow measurement)
Alarm mode
Relay outputs
Cleaning
Setting the clock
Tag number
Select menu item
32
Switching Parameter Sets A/B
Parameter Set A/B: Confi gurable Menu Groups
The device provides 2 parameter sets “A“ and “B“. By switching between the parameter sets you can adapt the device to different measurement situations, for example. Parameter set “B“ only permits setting of process-related parameters.
Menu group Parameter set A
Sensor selection
Current output 1
Current output 2
Compensation
Control input
Alarm mode
Relay outputs
Cleaning
Parameter set selection
Setting the clock
Tag number
Parameter set B
---
---
---
---
Current output 1
Current output 2
Compensation
---
Alarm mode
Relay outputs
---
External switchover of parameter sets A/B
You can switch between parameter sets A and B by applying a signal to the
CONTROL input (setting: ).
Max. 30 V AC/DC
(PWR out)
CONTROL
12
13
input
AXIS 15 A402 e.g. process control system
Parameter set A active 0...2 V AC/DC
Parameter set B active 10...30 V AC/DC
32
Switching Parameter Sets A/B
Parameter Set A/B: Confi gurable Menu Groups
The device provides 2 parameter sets “A“ and “B“. By switching between the parameter sets you can adapt the device to different measurement situations, for example. Parameter set “B“ only permits setting of process-related parameters.
Menu group Parameter set A
Sensor selection
Current output 1
Current output 2
Compensation
Control input
Alarm mode
Relay outputs
Cleaning
Parameter set selection
Setting the clock
Tag number
Parameter set B
---
---
---
---
Current output 1
Current output 2
Compensation
---
Alarm mode
Relay outputs
---
External switchover of parameter sets A/B
You can switch between parameter sets A and B by applying a signal to the
CONTROL input (setting: ).
Max. 30 V AC/DC
(PWR out)
CONTROL
12
13
input
AXIS 15 A402 e.g. process control system
Parameter set A active 0...2 V AC/DC
Parameter set B active 10...30 V AC/DC
Signaling Parameter Set
33
Parameter Set A/B: Manual Switchover
Display Action
To switch between
parameter sets:
Press meas
Remark
Manual selection of parameter sets must have been preset in
CONFIG mode. Default setting is a fixed parameter set A.
Wrong settings change the measurement properties!
PARSET blinks in the lower line.
Select parameter set using andkeys.
Select
PARSET A / PARSET B
The currently active parameter set is read on the display:
Press enter to confi rm.
Cancel by pressing meas
Parameter Set A/B: Signaling via WASH Contact
Wash
19
20
The active parameter set can be signaled using the WASH contact:
If confi gured correspondingly, the WASH contact signals:
Parameter set A: Contact open
Parameter set B: Contact closed
34
Error Messages
Error
Info text
(is displayed in case of fault when the Info key is pressed)
Problem
Possible causes
Error in factory settings
EEPROM or RAM defective
This error message only occurs in the case of a total defect. The device must be repaired and recalibrated at the factory.
Error in confi guration or
calibration data
Configuration or calibration data
defective; completely reconfigure and recalibrate the device.
System error
Restart required.
If error still persists, send in the device for repair.
pH sensor
Sensor defective
Sensor not connected
Break in sensor cable
Wrong sensor
Failure in sensor
Error in cal data
For a complete list of errors, please refer to the user manual
(included on CD-ROM available for download at: www.m4instruments.com).
34
Error Messages
Error
Info text
(is displayed in case of fault when the Info key is pressed)
Problem
Possible causes
Error in factory settings
EEPROM or RAM defective
This error message only occurs in the case of a total defect. The device must be repaired and recalibrated at the factory.
Error in confi guration or
calibration data
Configuration or calibration data
defective; completely reconfigure and recalibrate the device.
System error
Restart required.
If error still persists, send in the device for repair.
pH sensor
Sensor defective
Sensor not connected
Break in sensor cable
Wrong sensor
Failure in sensor
Error in cal data
For a complete list of errors, please refer to the user manual
(included on CD-ROM available for download at: www.m4instruments.com).
Error Messages
35
Error
Info text
(is displayed in case of fault when the Info key is pressed)
Problem
Possible causes
Display range violation
ORP: < -1999 mV or > 1999 mV
Conductivity:
Conductance > 3500 mS
Display range violation mV range
Temperature range violation
Glass Sensocheck (pH)
Load error
Note: Place enclosed jumper(s) across any unused 4…20 mA output terminals.
Output current 1
< 0 (3.8) mA
Output current 1
> 20.5 mA
Output current 2
< 0 (3.8) mA
Output current 2
> 20.5 mA
36
Sensocheck and Sensoface
Sensocheck, Sensoface Sensor Monitoring
Sensocheck continuously monitors the sensor.
The three Sensoface indicators provide information on required
maintenance of the sensor. Additional icons refer to the error cause.
Pressing the info key shows an information text.
Note:
The worsening of a Sensoface criterion leads to the devaluation of the Sensoface indicator (Smiley gets “sad”). An improvement of the Sensoface indicator can only take place after calibration or removal of the sensor defect.
Sensoface message
The Sensocheck message is also output as error message Err 15. The alarm contact is active, the display backlighting turns red, output current OUT is set to 22 mA (when confi gured correspondingly).
Disabling Sensocheck and Sensoface
Sensocheck can be switched off in the confi guration menu (then Sensoface is also disabled).
Exception:
After a calibration, a smiley is always displayed for confi rmation.
36
Sensocheck and Sensoface
Sensocheck, Sensoface Sensor Monitoring
Sensocheck continuously monitors the sensor.
The three Sensoface indicators provide information on required
maintenance of the sensor. Additional icons refer to the error cause.
Pressing the info key shows an information text.
Note:
The worsening of a Sensoface criterion leads to the devaluation of the Sensoface indicator (Smiley gets “sad”). An improvement of the Sensoface indicator can only take place after calibration or removal of the sensor defect.
Sensoface message
The Sensocheck message is also output as error message Err 15. The alarm contact is active, the display backlighting turns red, output current OUT is set to 22 mA (when confi gured correspondingly).
Disabling Sensocheck and Sensoface
Sensocheck can be switched off in the confi guration menu (then Sensoface is also disabled).
Exception:
After a calibration, a smiley is always displayed for confi rmation.
Operating States
Operating status
Measuring
DIAG
CAL
CONF
SERVICE
SERVICE OUT 1
SERVICE OUT 2
SERVICE RELAIS
SERVICE CONTROL
Cleaning function
HOLD
Explanation: as configured (Last/Fix or Last/Off)
active
manual
37
-
60 s
No
20 min
20 min
20 min
No
20 min
20 min
20 min
No
38
Product Calibration
Calibration by sampling (one-point calibration).
During product calibration the sensor remains in the process.
The measurement process is only interrupted briefl y.
Procedure:
1) The sample is measured in the lab or directly on the site using a portable meter.
To ensure an exact calibration, the sample temperature must correspond to the measured process temperature.
During sampling the device saves the currently measured value and then returns to measuring mode. The “calibration“ mode indicator blinks.
2) In the second step you enter the measured sample value in the device. From the diff erence between the stored measured value and entered sample value, the device calculates the new asymmetry potential.
If the sample is invalid, you can take over the value stored during sampling. In that case the old calibration values are stored. Afterwards, you can start a new product calibration.
Display Action
Select product calibration:
P_CAL
Press enter to proceed.
Remark
Ready for calibration.
Hourglass blinks.
Press enter to proceed.
Display (3 sec)
Now the device is in
HOLD mode.
Take sample and save value.
Press enter to proceed.
Now the sample can be measured in the lab.
38
Product Calibration
Calibration by sampling (one-point calibration).
During product calibration the sensor remains in the process.
The measurement process is only interrupted briefl y.
Procedure:
1) The sample is measured in the lab or directly on the site using a portable meter.
To ensure an exact calibration, the sample temperature must correspond to the measured process temperature.
During sampling the device saves the currently measured value and then returns to measuring mode. The “calibration“ mode indicator blinks.
2) In the second step you enter the measured sample value in the device. From the diff erence between the stored measured value and entered sample value, the device calculates the new asymmetry potential.
If the sample is invalid, you can take over the value stored during sampling. In that case the old calibration values are stored. Afterwards, you can start a new product calibration.
Display Action
Select product calibration:
P_CAL
Press enter to proceed.
Remark
Ready for calibration.
Hourglass blinks.
Press enter to proceed.
Display (3 sec)
Now the device is in
HOLD mode.
Take sample and save value.
Press enter to proceed.
Now the sample can be measured in the lab.
Product Calibration
39
Display
Calibration fi nished
Action
The device returns to
measuring mode.
Product calibration step 2:
When the sample value has been determined, open the product calibration once more (P_CAL).
The stored value is displayed
(blinking) and can be overwritten with the measured sample value.
Press enter to proceed.
Remark
From the blinking
CAL mode indicator, you see that product calibration has not been
terminated.
Display (3 sec)
Now the device is in
HOLD mode.
Display of new asymmetry potential (based on 25°C).
Sensoface is active.
To exit calibration:
Select MEAS, then enter
To repeat calibration:
Select REPEAT, then
enter
After end of calibration, the outputs remain in HOLD mode for a short time.
40
pH: Automatic Calibration
The AUTO calibration mode must have been preset during confi guration. Make sure that the buff er solutions used correspond to the confi gured buff er set. Other buff er solutions, even those with the same nominal values, may demonstrate a diff erent temperature response. This leads to measurement errors.
Display Action
Select Calibration.
Press enter to proceed.
Remark
Ready for calibration.
Hourglass blinks.
Select calibration method:
CAL_PH
Press enter to proceed.
Remove the sensor, clean it, and immerse it in the fi rst buff er solution (it does not matter which solution is taken fi rst).
Press enter to start.
Buff er recognition.
While the “hourglass” icon is blinking, the sensor remains in the fi rst buff er solution.
Display (3 sec)
Now the device is in
HOLD mode.
To reduce the sensor response time, fi rst move it about in the buff er solution and then hold it still.
Buff er recognition terminated, the nominal buff er value is displayed, then zero point and temperature.
40
pH: Automatic Calibration
The AUTO calibration mode must have been preset during confi guration. Make sure that the buff er solutions used correspond to the confi gured buff er set. Other buff er solutions, even those with the same nominal values, may demonstrate a diff erent temperature response. This leads to measurement errors.
Display Action
Select Calibration.
Press enter to proceed.
Remark
Ready for calibration.
Hourglass blinks.
Select calibration method:
CAL_PH
Press enter to proceed.
Remove the sensor, clean it, and immerse it in the fi rst buff er solution (it does not matter which solution is taken fi rst).
Press enter to start.
Buff er recognition.
While the “hourglass” icon is blinking, the sensor remains in the fi rst buff er solution.
Display (3 sec)
Now the device is in
HOLD mode.
To reduce the sensor response time, fi rst move it about in the buff er solution and then hold it still.
Buff er recognition terminated, the nominal buff er value is displayed, then zero point and temperature.
pH: Automatic Calibration
Display
41
Action
Stability check.
The measured value [mV] is displayed, “CAL2” and “enter” are blinking.
Calibration with the fi rst buff er is terminated. Remove the sensor from the fi rst buff er solution and rinse it thoroughly.
Use the arrow keys to select:
• END (1-point cal)
• CAL2 (2-point cal)
• REPEAT
Press enter to proceed.
Remark
Note:
Stability check can be stopped after 10 sec (by pressing enter).
However, this reduces calibration accuracy.
Display for 1-point cal:
Sensoface is active.
Exit by pressing enter
2-point calibration:
Immerse sensor in second buff er solution.
Press enter to start.
The calibration process runs as for the fi rst
buff er.
Retract sensor out of second buff er, rinse off , re-install.
Press enter to proceed.
The slope and asymmetry potential of the sensor (based on 25 °C) are displayed.
Use the arrow keys to select:
• MEAS (exit)
• REPEAT
Press enter to proceed.
Exit: HOLD is deactivated with delay.
When 2-point cal is exited:
42
Oxy: Calibration
Calibration adapts the device to the individual sensor characteristics.
It is always recommended to calibrate in air.
Compared to water, air is a calibration medium which is easy to handle, stable, and thus safe. In the most cases, however, the sensor must be removed for a calibration in air.
When dealing with biotechnological processes which require sterile conditions, the sensor cannot be removed for calibration. Here, calibration must be performed directly in the process medium (e.g. after sterilization and aeration).
In the fi eld of biotechnology, for example, often saturation is measured and
calibration is performed in the process medium for reasons of sterility.
For other applications where concentration is measured (water control etc.),
calibration in air has proved to be useful.
NOTICE
• All calibration procedures must be performed by trained personnel. Incorrectly set parameters may go unnoticed, but change the measuring properties.
• If a 2-point calibration is prescribed for trace-oxygen measurement, the zero
calibration should be performed prior to slope calibration. See user manual.
Common Combination:
Process Variable / Calibration Mode
Measurement
Saturation
Calibration
Water
Application
Biotechnology; sensor cannot be removed for calibration (sterility)
Waters, open basins Concentration Air
Below, the calibration procedure for a slope calibration in air is described. Of course, other combinations of process variable and calibration mode are possible.
42
Oxy: Calibration
Calibration adapts the device to the individual sensor characteristics.
It is always recommended to calibrate in air.
Compared to water, air is a calibration medium which is easy to handle, stable, and thus safe. In the most cases, however, the sensor must be removed for a calibration in air.
When dealing with biotechnological processes which require sterile conditions, the sensor cannot be removed for calibration. Here, calibration must be performed directly in the process medium (e.g. after sterilization and aeration).
In the fi eld of biotechnology, for example, often saturation is measured and
calibration is performed in the process medium for reasons of sterility.
For other applications where concentration is measured (water control etc.),
calibration in air has proved to be useful.
NOTICE
• All calibration procedures must be performed by trained personnel. Incorrectly set parameters may go unnoticed, but change the measuring properties.
• If a 2-point calibration is prescribed for trace-oxygen measurement, the zero
calibration should be performed prior to slope calibration. See user manual.
Common Combination:
Process Variable / Calibration Mode
Measurement
Saturation
Calibration
Water
Application
Biotechnology; sensor cannot be removed for calibration (sterility)
Waters, open basins Concentration Air
Below, the calibration procedure for a slope calibration in air is described. Of course, other combinations of process variable and calibration mode are possible.
Slope Calibration
Display
(Medium: Air)
43
Action
Select calibration.
Place sensor in air, press enter to start.
Device goes to HOLD mode.
Remark
“Medium water“ or
“Medium air“ is selected in the confi guration.
Enter relative humidity using
arrow keys
Default for relative
humidity in air: rH = 50%
Press enter to proceed.
Enter cal pressure using
arrow keys.
Press enter to proceed.
Default: 1.000 bars
Unit: bar/kpa/PSI
Drift check:
Display of: sensor current (nA), response time (s), temperature (°C/°F)
Press enter to proceed.
Display of calibration data
(slope and zero).
Press enter to proceed.
The drift check can take some minutes.
Display of selected process variable (here: %vol). Now the device is in HOLD mode:
Reinstall the sensor and check whether the measurement is OK.
MEAS exits calibration,
REPEAT permits repetition.
After end of calibration, the outputs remain in
HOLD mode for a short time.
44
Conductivity: Calibration
Input of temperature-corrected value of calibration solution with simultaneous display of cell factor.
Display Remark Action
Select Calibration.
Press enter to proceed.
Select CAL_SOL calibration method.
Press enter to proceed.
Ready for calibration.
Hourglass blinks.
Display (3 sec)
Now the device is in
HOLD mode.
Immerse sensor in calibration solution. Enter the temperature-corrected value of the calibration solution using the arrow keys (see table).
Press enter to confi rm.
Conductivity measurement, contacting (A402 COND)
The determined cell factor is displayed.
The “hourglass” icon is
blinking.
Proceed by pressing enter
Conductivity measurement, electrodeless (A405 CONDI)
The determined cell factor and zero point are displayed.
The “hourglass” icon is
blinking.
Proceed by pressing enter
Lower line: display of cell factor and temperature
44
Conductivity: Calibration
Input of temperature-corrected value of calibration solution with simultaneous display of cell factor.
Display Remark Action
Select Calibration.
Press enter to proceed.
Select CAL_SOL calibration method.
Press enter to proceed.
Ready for calibration.
Hourglass blinks.
Display (3 sec)
Now the device is in
HOLD mode.
Immerse sensor in calibration solution. Enter the temperature-corrected value of the calibration solution using the arrow keys (see table).
Press enter to confi rm.
Conductivity measurement, contacting (A402 COND)
The determined cell factor is displayed.
The “hourglass” icon is
blinking.
Proceed by pressing enter
Conductivity measurement, electrodeless (A405 CONDI)
The determined cell factor and zero point are displayed.
The “hourglass” icon is
blinking.
Proceed by pressing enter
Lower line: display of cell factor and temperature
Calibration with Cal Solution
45
Display Action
Display of selected process variable (here: mS/cm). Now the device is in HOLD mode:
Reinstall the sensor and check whether the measurement is OK.
MEAS exits calibration,
REPEAT permits repetition.
With MEAS selected:
Press enter to exit
calibration.
Remark
Display of conductivity and temperature,
Sensoface is active.
After end of calibration, the outputs remain in
HOLD mode for a short time.
After display of GOOD
BYE, the device automatically returns to
measuring mode.
Please note:
• Be sure to use known calibration solutions and the respective temperature- corrected conductivity values (see table on calibration solution).
• Make sure that the temperature does not change during the calibration
procedure.
46
46 47
M4 Instruments
50 West Technecenter Dr.,
Suite B-1
Milford, OH 45150
USA
Toll Free: 1-888-483-7532
Telephone: 513-833-2500
Fax: 513-833-2507
Email: [email protected]
www.m4instruments.com
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Key Features
- 4-wire Analyzer
- Digital Sensors Support
- Analog Sensors Support
- Hazardous Area Zone 2
- PID Controller
- Data Logger
- Two Parameter Sets
- Password Protection
- Automatic Calibration