Siemens ULTRAMAT 23 Product Information page 10

Continuous gas analysis
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Temperature compensation of sensitivity
To do this, proceed as follows:
1. Select the menu screen 'TC parameter input' (see above).
2. Position the cursor on the second line
3. Then press the ENTER.
button. The following screen appears:
A: +4.2117e+0
B: -2.8547e-1
C: +5.5450e-3
D: -2.8001e-5
You can now view the factors of the TC parameters for the sensitivity, and change them if necessary.
Adjusting the zero point
You can use this function to re-adjust the zero point of the H
zero gas.
To do this, navigate as follows: Calibration -> Please enter code -> Calibrate probe -> Choose component -> H
Calibrate Zero Point. The following screen appears:
H2S Zero cal.
3.3 vpm
H
S
2
Nitrogen flow please
Calibrate with ENTER
Selecting this function switches from the sample gas inlet (inlet 1) to the zero gas inlet (Input 3). Now perform the zero point
calibration as follows:
1. Wait until the displayed value has stabilized.
2. Begin the correction of the calibration by pressing the ENTER key.
3. End the calibration by pressing the ESC key.
If an error is detected during the calibration, error number 29 is displayed (zero point of H
10
S sensor. You can use nitrogen or air containing no H
2
Supplement 1 for Operating Instructions C79000-G52xx-C216-03
S ->
2
S sensor outside tolerance limits).
2
A5E02769382-03, 03/2012
S as the
2

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