130
System Manual SCK Gas Sampling System
42/23-81 EN Rev. 4
The electric heating of probe H is driven by a fixed voltage generated by the trans-
former installed in the control cabinet. Excessively long supply lines or incorrectly
chosen cross-sections of the supply lines can lead to massive voltage drops en
route to the gas sampling probe. This leads to reduced heating output and prob-
lems with probe operation.
Proceed as follows:
Step
Procedure
1
Check voltage between Ground and the probe-side terminal con-
nections
(1)
or
(2)
.
2
The following minimum values must be reached:
Probe length / m
1,5
2
2,5
3
3,5
Minimum voltage / V
24
26
26
28
30
If these values are not reached, the system must not be put into
operation in this set-up as adequate heating of the integrated metal
filter cannot be guaranteed and this may lead to condensation and
clogging of the probe.
Check the following possibilities for adequate supply:
Lay larger cross-sections
Reduce lengths of supply lines
Checking the probe H
heating power supply
Summary of Contents for SCK
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