ELTRA CS-2000, Service Manual

Page: 110 / 160

Service
110
Pos : 7. 12 /0025 Übersc hrift en/ELTRA 1.1 Übersc hrift en/11 Fl ow s ensor r epl ac ement Eltr a @ 8 \ mod_1396941567775_9. doc x @ 60384 @ 2 @ 1
5.6 Flow sensor replacement
Pos : 7. 13 /0010 ELTR A/ 0015 s ervic e_ins truc tions/C S-2000_s er vice/ 15 Ser vic e_C S-2000/1535 Modul Flow sens or replac ement @ 9\ mod_1425543539438_9. doc x @ 74778 @ @ 1
Fig. 94: Flow sensor(3-14)
–
Set the power switch to pos. 0.
– Remove the left side panel of the analyzer’s cabinet.
–
Remove the tubes (10) and (11) at the bottom-side of the infrared module.
–
Remove the plastic tubes from the left hand side of the IR module.
–
Remove the two plugs from the left hand side of the IR module.
–
Remove the screw fixing the IR module in the analyzer. Take the infrared module out of
the analyzer.
–
Remove the two tubes (5) and (6) from the flow sensor (9).
CAUTION
They shouldn’t be interchanged when reassembling! In case of doubt see chapter
“
IR-paths cleaning and replacing
”
–
Remove the two screws (7) underneath the flow sensor.
–
Remove the old flow sensor (9) and install a new one.
–
Reassemble the infrared rack in reverse order.
–
Pay particular attention to the position of the tubes (5), (6), (10) and (11). In case of doubt
see chapter “
IR-paths cleaning and replacing
”
–
Adjus
t the flow sensor. See chapter “
Gas flow controller
” where is written:
“Set the flow rate with P1 of the HF 42, to about 180 l/h. Observe the flow rate on the lower flow
meter of the analyzer.
Wait until the value is stable.”
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9
5
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7
11
10