ELTRA ONH-2000 - 2.12 TC Cell Zero Baseline Adjustment

 2002 by ELTRA GmbH Germany – January 2002 – Service Manual OH 900 / ON 900 / ONH 2000
2.12-1
2.12 2.12 TC zero baseline adjustment:
With the keys
the zero baseline of all channels is shown in the display.
The value of the third channel is the baseline of the high nitrogen channel. The value of
the sensitive channel is 20 times higher.
An adjustment is necessary, if the value of the high nitrogen channel is higher than ±0.2V.
The zero baseline of the sensitive channel is not displayed.
Adjust as follows:
 Type MENU CAL
 Turn trimmer 2 in a central position
 Search with jumper 3 a value close to 0
 Adjust exactly to 0 with trimmer 2
TC CELL
3
1 2
2-12
04000