Instruction Manual
ExTox IMC-8/-4
Page 18 of 24
BA_IMC-8_-4_e_2011-09-20.doc
5.3.2
Calibration and Adjustment
Calibration shows the following specific features: In case there is no
H
2
S
-Transmitter for meas-
urement after ACF configured calibration is done as usual. Configuration of a
H
2
S
-Transmitter
with low measuring range is recognized by the software and calibration menu is automatically
extended:
CALIBRATION FLOW= 31 l/h
F1:CAL. H2S 0-3000 ppm
F2:CAL. H2S 0- 100 ppm
H2S-HI H2S-LO ESC
In case calibration is started with F1 (H2S-HI) the IMC expects a H
2
S-test gas concentration for
high measuring range, the gas flow is switched correspondingly. When starting with F2 (H2S-
LOW) a test gas concentration for calibration of the low H
2
S-measuring range is expected. To
calibrate both transmitters you have to perform the calibration process for both measuring
ranges.
