Measuring The Temperature; Orp Calibration - wtw VWR MU 6100 H Operating Manual

MU 6100 H
Freezes the mea-
sured value (HOLD
function)
ba77077e06 05/2021
With the HOLD function, you can freeze the current measured value. The dis-
played measured value stops changing until you switch the HOLD function off.
1. Freeze the measured value with
The [HOLD] status indicator is displayed.
2. Release the frozen measured value again with
The HOLD function is switched off.
The [HOLD] status display disappears.
7.1.2

Measuring the temperature

For reproducible ORP measurements, it is essential to measure the tempera-
ture of the test sample.
You have the following options to measure the temperature:
 Automatic measurement of the temperature by the temperature sensor
(NTC30 or Pt1000) integrated in electrode.
 Manual determination and input of the temperature.
The measuring instrument recognizes whether a suitable sensor is connected
and automatically switches on the temperature measurement.
The display of the temperature indicates the active temperature measuring
mode:
Temperature Resolution of the
sensor temp. display
yes 0.1 °C
- 1 °C
If you wish to measure without temperature sensor, proceed as follows:
1. Measure the current temperature of the test sample.
2. Set the temperature value with
or
<OK>
In the /U/Man. temperature menu, set the temperature value with
< >< >
  .
7.2

ORP calibration

ORP electrodes are not calibrated. You can, however, check ORP
electrodes by measuring the ORP of a test solution and comparing
the value with the nominal value.
<HOLD>
.
<HOLD>
Temp. measurement
Automatic with temperature sensor
Manual
< >< >
  .
ORP voltage
<MODE>
or .
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