User manual

T20.0.24.6C-05 page 3 of 4
Arrow to Temp
indicates
tem
p
erature dis
p
la
y
Display functions (only available for devices with option -VO)
Currently measured values
During normal operation the relative air humidity in [%RH] is displayed alternating to the temperature in [°C] or [°F].
display relative air humidity display temperature
Min/Max Value Memory
watch Min values (Lo): press ‘down‘(middle key) shortly once display changes between ‘Lo‘ and Min values
watch Max values (Hi): press ‘up‘(right key) shortly once display changes between ‘Hi‘ and Max values
restore current values: press ‘down‘ or ’up’ once again current values are displayed
clear Min-values: press ‘down’ for 2 seconds Min values are cleared. The display shows shortly ‘CLr‘.
clear Max-values: press ‘up’ for 2 seconds Max values are cleared. The display shows shortly ‘CLr‘.
After 10 seconds the currently measured values will be displayed again.
Error and system messages
Display Description Possible fault cause Remedy
Err.1
measuring range exceeded Wrong signal Temperature above 70°C not allowed.
Err.2
Measuring value below
measuring range
Wrong signal Temperature below -25°C not allowed.
Err.7
System fault Error in device
Disconnect from supply and reconnect. If error
remains: return to manufacturer
Err.9
Sensor error Sensor or cable defective Check sensor, cable and connections
Er.11
Calculation not possible
Calculation variable missing
or invalid
Check temperature
8.8.8.8
Segment test
The transducer performs a display test for 2 seconds after power up. After
that it will change to the display of the measuring.
Configuration of the device
The configuration of the device is done by means of the PC-software EbxKonfig or EASYBUS-Konfigurator.
The following parameters can be changed:
- Display unit of temperature measuring
- Adjusting of humidity and temperature display (offset and scale correction)
- Setting of the alarm function for humidity and temperature
The adjusting by means of offset and scale is intended to be used to compensate errors of the measurings. It is
recommended to keep the scale correction deactivated. The display value is given by following formula:
Display = measured value - offset
With a scale correction (just for calibration laboratories, etc) the formula changes:
Display = (measured value - offset) * ( 1 + scale adjustment/100)
Configuration at the device (only available for devices with option -VO)
Attention: If EASYBUS sensor modules are operated by a data acquisition software, there
can be problems if the configuration is changed during a running acquisition.
Therefore it is recommended not to change configuration values during a
running recording and furthermore to protect it against manipulation by
unauthorised persons. If the jumper connecting the contacts shown in the
figure is removed, the configuration is not accessible, the settings are
protected. Never connect the other contacts!
Jumper
1 2 3