Mostec M4036 User manual

M4036OM V1.11e/20.09.2023
Operating manual
Conductivity meter
Type M4036

Operating instruction manual M4036
Chapter: Revision
Page 2
Revision
Version Date Changes
V1.10 05.09.2023 Valid for M4036 as of firmware version 1.00.18

Operating instruction manual M4036
Chapter: Content
Page 3
Content
Revision .................................................................................................................................................................................... 2
Content ..................................................................................................................................................................................... 3
Operating notes ........................................................................................................................................................................ 4
Warranty ...................................................................................................................................................................................... 4
Technical description ................................................................................................................................................................... 4
Technical support ........................................................................................................................................................................ 4
Contact details ....................................................................................................................................................................... 4
Safety instructions ....................................................................................................................................................................... 5
Operating regulations .................................................................................................................................................................. 5
Wiring diagram ............................................................................................................................................................................ 6
Connections ................................................................................................................................................................................. 7
Additional clamp (optional) ................................................................................................................................................... 7
Instrument overview ................................................................................................................................................................ 8
Instrument elements ................................................................................................................................................................... 8
Measurement screen ............................................................................................................................................................. 8
Meaning of the symbols ........................................................................................................................................................ 8
User menu ................................................................................................................................................................................ 9
Settings ........................................................................................................................................................................................ 9
Measurement settings ............................................................................................................................................................... 10
Signal output 1 & 2 settings ................................................................................................................................................. 11
Temperature settings ........................................................................................................................................................... 11
Device settings ........................................................................................................................................................................... 12
Limit settings ............................................................................................................................................................................. 12
Limit contact 1 & 2 settings ................................................................................................................................................. 13
Alarm settings ...................................................................................................................................................................... 14
Alarm SP1 & SP2 settings ..................................................................................................................................................... 14
USB settings ............................................................................................................................................................................... 15
Modbus settings ........................................................................................................................................................................ 15
Devices Info ............................................................................................................................................................................... 15
Operation of the device .......................................................................................................................................................... 16
Alarm Log ................................................................................................................................................................................... 16
Explanation of the Alarm Log Symbols ................................................................................................................................ 16
USB Logger ................................................................................................................................................................................ 17
Features of the USB Logger .................................................................................................................................................. 17
File name / file format ......................................................................................................................................................... 17
Example................................................................................................................................................................................ 17
Saving and restoring the device settings ................................................................................................................................... 17
Firmware update ....................................................................................................................................................................... 17
Appendix ................................................................................................................................................................................ 18
Dimensions ................................................................................................................................................................................ 18
Side view: ............................................................................................................................................................................. 18
Rear view: ............................................................................................................................................................................ 18
Technical data ............................................................................................................................................................................ 19

Operating instruction manual M4036
Chapter: Operating notes
Page 4
Operating notes
Warranty
Mostec AG grants a warranty of 2 years on the measuring device mentioned. The period for calculating the warranty period
begins with the invoice date. During the warranty period, defects which are not due to improper use will be repaired free of
charge. Excluded are damages caused by use, for example such as scratched front panels and displays, corroded
potentiometers, entry of water or similar defects.
There is an extended warranty of additional 2 years on long term damages, should they be due to faulty manufacturing. This
includes bad and cold solder joints, as well as assembly errors, which only become noticeable after a longer period of
operation.
The warranty repair must in any case be carried out at Mostec. Postage and packaging expenses shall be paid by the customer.
In the event of a warranty claim, the repaired unit will be returned at Mostec's expense. Transport damages are excluded from
any warranty service and must be reported to the delivering carrier.
Technical description
The very compact conductivity meter type M4036 was developed for applications for automatic dosing or monitoring purposes.
A bright and sunlight readable 3.5 inch IPS display allows reading of the measured value even in bright environments. The touch
screen can be operated smoothly and enables intuitive and uncomplicated use.
The two-point controller consists of two potential-free limit contacts which can be electronically adjusted over the entire range.
In order to control alarm devices, dosing valves and dosing pumps, among other things, these limit contacts can be used. The
current measured value, the temperature, as well as the device status are continuously displayed.
A galvanically isolated wide range power supply from 20 to 253VAC/DC supplies the device and only a conductivity electrode is
needed for the instrument to be ready for operation. Commercially available probes with K-factors 0.01, 0.1, 1.0 and 10.0 cover
a dynamic range from 1µS to 200mS (example: M8836S). The cable length of the probe is internally automatically compensated
has no influence on the measurement.
Temperature compensation is done either manually or with an external Pt-100 sensor. Defects of the Pt-100 sensor are
immediately indicated and trigger an alarm. The conditions for such an alarm trigger can be defined. All device settings can be
protected by means of an access code.
A USB stick can be used to automatically log the measured values. Two programmable, galvanically isolated signal outputs are
available to send for example the measurement value and the temperature to a PLC.
Technical support
For questions or concerns, we can be reached by email or phone.
Current operating instructions can be found on our website www.mostec.swiss.
Contact details
Mostec AG
Lausenerstrasse 13a
CH-4410 Liestal BL
Phone: [phone]
E-mail: [e-mail]

Operating instruction manual M4036
Chapter: Operating notes
Page 5
Safety instructions
Observe the customary national regulations and safety requirements for electrical, light and heavy current
installations.
Read and observe the safety regulations of these operating instructions before using the device.
The device must be mounted in such a way that it is protected from moisture, vibrations and heavy soiling.
When working on the control panel, all lines leading to the device must be de-energized if there is a risk that the
terminals located on the device could be touched.
The limit values for the variables specified in the data sheet must not be exceeded under any circumstances.
Wiring, commissioning and operation of the equipment must be carried out by suitably qualified personnel in
accordance with local regulations.
If it can be assumed that the device can no longer be operated without danger, it must be taken out of service and
secured against further operation by labeling.
Failure to follow the safety instructions may result in damage to the device and injury to the operator.
Operating regulations
1. Connect the device according to the wiring diagram.
2. After all necessary connections have been made, the supply voltage of the system can be switched on.
3. Make the appropriate settings for the respective operation.

Operating instruction manual M4036
Chapter: Operating notes
Page 6
Wiring diagram

Operating instruction manual M4036
Chapter: Operating notes
Page 7
Connections
5 Probe + input 6 Probe - input 7 Hold input 8 GND
9 Pt-100 probe (-) 10 Pt-100 probe sense(-) 11 Pt-100 probe (+)
21 Protective earth PE 22 Supply power (-) 23 Supply power (+)
24 Limit value 1: normally
open contact (NO) 25 Limit value 1: changeover contact 26 Limit value 1: normally closed contact (NC)
27 Limit value 2: normally
open contact (NO) 28 Limit value 2: changeover contact 29 Limit value 2: normally closed contact (NC)
30
Alarm contact:
normally open contact
(NO)
31
Alarm contact:
changeover contact 32
Alarm contact:
normally closed contact
(NC)
33 Signal output GND 34 Signal output 1 35 Signal output 2
41 Modbus RS485-A 42 Modbus RS485-B 43 Modbus RS485-GND
Additional clamp (optional)
61 Limit value 3: normally
open contact (NO) 62 Limit value 3: normally closed contact (NC) 63 Limit value 3: Changeover contact
64 Limit value 4: normally
open contact (NO) 65 Limit value 4: normally closed contact (NC) 66 Limit value 4: Changeover contact
67 Modbus RS485 Master-
A 68 Modbus RS485 Master- B

Operating instruction manual M4036
Chapter: Instrument overview
Page 8
Instrument overview
Instrument elements
Measurement screen
1. Current measured values
2. Logo and "Device info" entry
3. Device label
4. Status bar with current time
5. Settings
6. Measuring range
7. Measurement unit
8. Temperature measurement source
9. Auto / manual operation
10. Alarm display and alarm log
11. Status limit contacts
All symbols marked with can be selected
Meaning of the symbols
Conductivity probe type
Analog conductivity probe
4...20mA input (not available)
Modbus (not available)
USB
USB storage medium connected
USB storage medium is currently being accessed
Modbus
RS-485 communication connected to bus
RS-485 communication active
Other
Temperature source manual mode
Temperature source Pt-100 mode
Temperature source digital mode (only possible with probe type Modbus)
Instrument in manual mode
Instrument in automatic mode
No alarm active
Alarm active (flashing symbol)
Alarm acknowledged (steady symbol)
Switching contact open
Switching contact closed

Operating instruction manual M4036
Chapter: User menu
Page 9
User menu
The user menu has the following submenus. In these submenus, device-specific settings can be made.
The bar on the right side is a scroll bar
The default values are shown [Bold]
Settings
Enter the Settings menu by pressing the icon .
Menu item Submenu items Section
Measurement settings Current output 1
Current output 2
Range
Cell constant
Conductivity cell type
Temperature
Broken wire conductivity cell
Seite 10
Device settings Language
Access code
Brightness screen
Device label
Seite 12
Limit contact settings Limit value 1
Limit value 2
Limit value 3 (optional)
Limit value 4 (optional)
Alarm contact
Seite 12
USB settings Log interval
Time
Date
Log
Device settings
Seite 15
Modbus settings Modbus address
Modbus baud rate
Modbus mode
Page 15
Device Info Firmware version
Serial number
Device type
Hardware
Firmware update
Seite 15

Operating instruction manual M4036
Chapter: User menu
Page 10
Measurement settings
In this submenu, measurement-specific settings as well as settings for the current output can be made.
Menu item Function/Comment Possible values
Current output 1 Settings for signal output 1 See
Signal output 1 & 2 settings
Current output 2 Settings for signal output 2 See
Signal output 1 & 2 settings
Range Current measuring range, depending on
cell constant
2µS
20µS
200µS
2000µS
20mS
200mS
auto
[auto]
Cell constant Setting the cell constant including
correction value
Adjustable from:
0.0000 to 11.0000
[1.0000]
Conductivity cell type Selects the conductivity cell type analog
4-20mA (not available)
modbus (not available)
[analog]
Temperature Temperature settings See Temperature settings
(Seite 11)
Broken wire conductivity cell Sets the lower threshold for the broken
wire detection of the conductivity cell.
Adjustable from:
0.0 to 25.5% of the measuring range
[1.0%]
0.0 = Off