H76.0.02.6C-04
Operating Manual GMH 3251
page 15 of 18
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9.2 Analogue Output
– Scaling with DAC.0 and DAC.1
Note: Analogue output can not be used during logger recordings
With the DAC.0 and DAC.1 values the output can be rapidly scaled to your efforts.
Keep in mind not to connect low-resistive loads to the output, otherwise the output
value will be wrong and battery life is decreased. Loads above ca 10kOhm are
uncritical. The connection cable may not be longer than 3m.
If the display exceeds the value set by DAC.1, then the device will apply 1V to the
output
If the display falls below the value set by DAC.0, then the device will apply 0V to the
output
In case of an error (Err.1, Err.2, no sensor, etc.) the device will apply slightly above
1V to the output.
plug wiring:
GND
Attention!
the 3
rd
contact has to be left floating!
Only stereo plugs are allowed!
+Uout
10
Adjustment
10.1 Zero Displacement Sensor 1 ('OFS.1') or Sensor 2 ('OFS.2')
A zero displacement can be carried out for the measured value:
value displayed = value measured - offset
Standard setting: 'off' = 0.0°, i.e. no zero displacement will be carried out. Together
with the scale correction (see below) this factor is mainly used to compensate for
sensor deviations. Input is in the display unit.
10.2 Scale Correction Sensor 1 ('SCL.1') or Sensor 2 ('SCL.2')
This setting influences the scale of the measuring (factor is in %):
displayed value = measured value * (1+Scal/100)
Standard setting: 'off' =0.000, i.e. value is not corrected. Together with the zero
displacement (see above) this factor is mainly used to compensate for sensor
deviations.
10.3 Correction for surface measuring
Sensor 1(’SCF.1’)
o
r Sensor 2 (’SCF.2’)
The correction value refers to the temperature difference between the device- /
ambient temperature and the temperature determined by the thermocouple.
Display = device tempe (measured temperature
– device temperature) * Corr
Standard setting
: ’off’ =1.000
This factor is used to compensate for losses of transfer in case of surface
measurements, occurring if the object to be measured is extremely hot but will be
cooled by lower ambient temperatures. The same can be true for sensors with a large
mass. Unless ’off’ is set, this value will be displayed shortly after the device is