H72.0.01.6C-02
Operating Manual GMH 3431
page 9 of 14
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7 Configuration
Some menu points depend on current device settings.
To change device’s settings, press
„Menu“
for 2 seconds. This will activate the configuration menu
(main display: “SEt”). Pressing
„Menu“
changes between the menus points, pressing
jumps to
the referring parameters, which can be selected with key
.
The parameter value can be changed with
or
. Pressing
„Menu“
again jumps back to the main
configuration menu and saves the settings.
Pressing „Quit“
finishes the configuration.
Pressing “menu” and “store” at the same time for more than 2 seconds will reset the
device to factory defaults.
If no key is pressed for more than 2 minutes the configuration will be aborted. All changes will
be discarded!
Menu Parameter
Value Description
or
Set Configuration: General configuration
I
nput: Selection of measured variable
Cond Conductivity
rESi
Resistivity
tdS
Total dissolved solids
SAL
Salinity
SEt
Change-over measured variables by Set-key
TDS measurement: conversion factor (only if Inp = tdS)
0.40 - 1.00
Conversion factor for TDS measurement
Cell Corr: Adjustment of cell correction: multiplication factor
0.800 -
1.200
Multiplication factor of cell correction
Factory setting: 1.000
Range: Selection of display range (conductivity, resistivity or tdS)
Auto
Automatic range selection
200.0 µS/cm
Lowest selectable range (conductivity)
… …
400 mS/cm
Highest selectable range (conductivity)
Automatic adjustment/calibration with reference solution (only if Inp = Cond)
Edit
Manual adjustment to reference value
REF.S
Choice of standard reference solutions
REF.S: Choice of standard reference solutions for automatic adjustment/cal.
1413 µS/cm
Reference solution 0.01 M KCL
2760 µS/cm
0.02 M KCL
12.88 mS/cm 0.1 M KCL
50 mS/cm
Sea-water reference solution KCL
111.8 mS/cm 1 M KCL
Unit t: Selection of temperature unit
°C
All temperature values in degree Celsius
°F
All temperature values in degree Fahrenheit
Temperature compensation (not for InP = SAL)
oFF
No temperature compensation of conductivity measurement
nLF
Non-linear function for natural waters according to EN 27888
(ISO 7888), ground, surface and drinking water
Lin
Linear temperature compensation
Compensation coefficient (only if t.Cor = Lin)
0.300 3.000
Temperature compensation coefficient in %/K