USER MANUAL
400DH
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MRU GmbH, D-74172 Neckarsulm
3.2.
Terms and window designation
function
explanation
1 Connect probe!
In case of a communication error, check that the probe
is connected to the device via AUX connector and that
an interchangeable sensor is correctly plugged in.
2 SN
The serial number of the mounted sensor is displayed.
3 Warm-up time
Depending on the sensor, a certain time is required to
warm up the sensor to the required operating temper-
ature.
4 Numeric value
Display of the elapsed warm-up time
5 Function bar
Displays the functions available for the sensor used
3.3.
Context menu
Depending on the sensor type used, different functions are offered in the context
menu:
function
explanation
Signal ON (Key F1)
If the sensor has a signal threshold, signal ON appears
in the context menu and on the display (Key F1).
With this function the signal is switched on.
Signal OFF (Key F1)
If the sensor has a signal threshold, signal ON appears
in the context menu and on the display (F1).
This function turns off the signal.
Zero point (Key F2)
This function is sensor dependent.
With this function the sensor is zeroed.
Max = 0 (Key F3)
The value Max is set to zero.
Reset
This function resets the graphic.
Setting
Depending on the sensor, the units and Signal thresh-
olds are set.
Printout (Dr)
Printout is generated, a printer is required for this
function.
Measurement menu
(ESC)
Exit measuring program
Info
The information (sensor name, serial number, firmware
version) about the sensor is displayed here.
choice
( >>) "Arrows right"
choice
( <<) "Arrows left"
Varies by sensor
e.g. HC402:
Switching between CH4, C3H8 and H2
