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T14.0.1X.6C-04

Operating Manual GLMU 400 MP

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1 Intended 

use

The GLMU 400 MP is a transmitter for measuring conductivity or other units based on conductivity measur-
ing in liquids.
The measurement is performed by means of alternating current flow between the poles of the measurement
cell, being in direct contact with the liquid.
The measurement is displayed via analogue standard signal output and a liquid crystal display.
The 4-20 mA model is supplied only by the current loop, the 0-.. V model required a separate power supply.
The configuration of the various parameters has to be checked prior to use.

2 General 

Advice

Read through this document attentively and make yourself familiar to the operation of the device before you
use it. Keep this document in a ready-to-hand way in order to be able to look up in the case of doubt.

3 Safety 

Requirements

This device has been designed and tested in accordance with the safety regulations for electronic devices.
However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures
and special safety advises given in this manual will be adhered to when using the device.
1. Trouble-free operation and reliability of the device can only be guaranteed if the device is not subjected to

any other climatic conditions than those stated under "Specification".
If the device is transported from a cold to a warm environment condensation may cause in a failure of the
function. In such a case make sure the device temperature has adjusted to the ambient temperature be-
fore trying a new start-up.

2. General instructions and safety regulations for electric, light and heavy current plants, including domestic

safety regulations (e.g. VDE), have to be observed.

3. If device is to be connected to other devices (e.g. via PC) the circuitry has to be designed most carefully.

Internal connection in third party devices (e.g. connection GND and earth) may result in not-permissible
voltages impairing or destroying the device or another device connected.

4. If there is a risk whatsoever involved in running it, the device has to be switched off immediately and to be

marked accordingly to avoid re-starting.
Operator safety may be a risk if:
- there is visible damage to the device
- the device is not working as specified
- the device has been stored under unsuitable conditions for a longer time
In case of doubt, please return device to manufacturer for repair or maintenance.

5. Warning:

Do not use these products as safety or emergency stop devices, or in any other application where failure of
the product could result in personal injury or material damage. Failure to comply with these instructions
could result in death or serious injury and material damage.

4 Disposal 

instructions

This device must not be disposed as ‘residual waste’.
To dispose this device, please send it directly to us (adequately stamped).
We will dispose it appropriately and environmentally friendly.

5 Calibration 

Services

Factory calibration certificate - DKD certificate - official certifications:
If the measuring instrument is supposed to receive a factory calibration certificate, it has to be sent to the
manufacturer.
Just the manufacturer can check the factory settings and correct them if necessary.

Summary of Contents for GLMU 400 MP

Page 1: ...Conductivity Transmitter with 4 pole measuring cell graphite as of version 2 1 Operating Manual GLMU 400 MP Contents 1 Intended use 2 2 General Advice 2 3 Safety Requirements 2 4 Disposal instructions 2 5 Calibration Service 2 6 Installation 3 7 Operation 4 8 Display functions 5 9 Error and system messages 5 10 Configuration 6 11 Specification 8 ...

Page 2: ...adjusted to the ambient temperature be fore trying a new start up 2 General instructions and safety regulations for electric light and heavy current plants including domestic safety regulations e g VDE have to be observed 3 If device is to be connected to other devices e g via PC the circuitry has to be designed most carefully Internal connection in third party devices e g connection GND and earth...

Page 3: ...6 1 Assignment of elbow type plug 4 20 mA 2 wire connection voltage 3 wire connection 1 supply 2 GND signal 1 signal 3 supply voltage Uv 4 supply voltage Uv The type current or voltage output is set by works and cannot be changed 6 2 Terminal assignment of meas cell socket contact no 4 pole cell K 0 55 1 temperature 2 temperature GND 3 supply 1 4 signal 1 5 signal 2 6 supply 2 7 not used 6 3 Usage...

Page 4: ... should be controlled or improved this is done by means of suitable reference solutions and the adjusting of the cell factor Attention Wrong handling of reference solution can make them useless very fast Measuring procedure Especially when measuring low conductivity Before immersion to the measuring solution rinse the measur ing cell with deionised water The measuring is speeded up considerably if...

Page 5: ...CLr After 10 seconds the currently measured values will be displayed again 9 Error and system messages Display Description Possible fault cause Remedy Err 1 measuring range ex ceeded Wrong signal Temperature above 140 C not allowed Choose right measuring range for con ductivity Err 2 Measuring value below measuring range Wrong signal Temperature below 5 C not allowed Choose right measuring range f...

Page 6: ...set above Possible inputs Range rAnG r 4 Range rAnG r 3 Range rAnG r 2 Range rAnG r 1 Range rAnG r 0 Conductivity cond 0 500 mS cm 0 0 200 0 mS cm 0 00 20 00 mS cm 0 2000 µS cm 0 0 200 0 µS cm Resistivity rESi 1 00 50 00 Ohm cm 1 0 500 0 Ohm cm 1 5000 Ohm cm 0 00 20 00 kOhm cm 0 200 kOhm cm TDS tdS 0 1000 g l 0 0 200 0 g l 0 00 20 00 g l 0 2000 mg l 0 0 200 0 mg l Salinity SAL 0 0 70 0 10 4 t Cor ...

Page 7: ...e measuring The offset of the measuring will be shifted by this value the input is in C Calculation see below Max input range 5 0 5 0 C or oFF 0 0 factory setting off 10 12 SCAL with Temp arrow Scale correction of temperature measuring The scale of the measuring is changed by this value Calculation see below Max input range 5 00 5 00 or oFF 0 00 factory setting off The adjusting of the temperature...

Page 8: ... mA type 2 wire output signal electrically isolated options AV01 0 1 V AV10 0 10 V 3 wire output signal electrically isolated Auxiliary energy supply voltage Uv 12 30 V DC 4 20 mA Uv 12 30 V DC max 10mA 0 1V Uv 18 30 V DC max 10 mA 0 10 V or refer to type plate Rev voltage protection 50 V permanent Perm impedance at 4 20mA RA Ohm Uv 12 V 0 02 A Example for Uv 18V RA 18 V 12 V 0 02 A RA 300 Ohm Per...

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