H40.0.01.6C-09
Operating Manual GMH 3330
Page 11 of 16
8
Notes to Special Functions
8.1
Zero Displacement (’Offset’)
A zero displacement can be carried out for each of the two temperature channels T1 (TFS0100 only)
and T2:
temperature displayed = temperature measured - offset
Standard setting: 'off' = 0.0°, i.e. no zero displacement will be carried out. The zero displacement is mainly
used to compensate for sensor deviations. Unless 'off' is set, this value will be displayed shortly after the
device is switched on; during operation it will be identified by means of the Corr-arrow in the display.
8.2
Display Correction Factor (’Corr’)
This factor is applied only to the NiCr-Ni-input T2.
temperature displayed [°C] = temperature measured [°C] * Corr
or temperature displayed [°F] = (temperature measured [°F]-32°F) * Corr + 32°F
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 de-
vice is switched on; during operation it will be identified by means of the Corr-arrow in the display.
8.3
Base Address (’Adr.’)
Using the interface converter GRS3105 it is possible to connect several instruments to a single interface.
As a precondition the base addresses of all devices must not be identical. In case several devices will be
connected via one interface make sure to configurate the base addresses accordingly.
Channel 1 will be addressed by the base address set, channels 2 - 6 will have the following addresses.
(Example: base address 21 - channel 1 = 21, channel 2 = 22,
…, channel 6 = 26)
9
How to Calibrate Meas. of Rel. Humidity Using TFS 0100
Due to the natural aging process of the polymer humidity sensor we recommend to calibrate the sensor at
least once a year to ensure optimum measuring accuracy. For optimum recalibration and linearity check,
please return device to manufacturer.
Use integrated calibration function for 2-point on-site calibration:
How to calibrate sensor with the calibration device GFN xx
The following humidity variables are acceptable for the automatic buffer detection:
Name
RH at 20°C
Calibration device
The calibration device GFN XX have been optimized for ap-
plication with TFS 0100. To ensure highly accurate calibra-
tion, we recommend to use these humidity variables only. For
more detailed information please refer to the relevant operat-
ing manual.
KNO3
93%
---
NaCl
76%
GFN 76
MgCl2
33%
GFN 33
Silica-Gel
0%
---
Please note: Automatic temperature compensation during calibration
The rel. humidity to be found in the calibration equipment is quite often highly dependent on temperature.
This dependence is automatically compensated for when calibrating with the integrated calibration equip-
ment and automatic detection. In case you want to enter calibration values manually, make sure to enter
the respective temperature with the values.
