2002 by ELTRA GmbH Germany – January 2002 – Service Manual OH 900 / ON 900 / ONH 2000
3.6-1
3.6
3.6
Infrared cell temperature regulation
The temperature regulation of the infrared cell is made up of the circuit
boards TH 61 ( 1 ) and NR32 ( 2 ), the connecting wire ( 3 ),
the temperature sensor ( 5 ), and the heaters ( 4 ).
Replacing the TH 61:
The plug ( 4 ) should already have been removed during the removal of the infrared
cell from the analyser.
Unscrew and remove the power supply module ( 1 ), see
3. 4
Disconnect the plug ( 2 ).
Remove the four nuts ( 3 ).
Re-assemble in reverse order.
Make adjusts to the unit according to
2. 5
.
5
4
2
1
0 6 0 5 9
3
NR 32
TH61 06058
4
15037
3-6-1 -1 S
2
3
0 605 9
IR 1 3 0 64 21
T H6 1 0 60 58
ge
rt
sw
3-06-1-2 S
1
4
2
1
3 4