M&C TechGroup PSS-10_1 Operator's manual - Manual (Page 18)

18
Gas sampling and gas conditioning technology 4-2.1.2-ME
16 TROUBLE SHOOTING
The following table aims to point out possible operational problems and offer solutions to such
problems (not applicable during the starting procedure).
Indication Problem Possible Cause Check/Solution
Upper LED on
cooler does not
come on;
Middle LED on
cooler is green;
Alarm LED on
the LA electro-
nics is red Interruption of
gas flow;
Cooler in
operation but
gas flow
interrupted;
No voltage;
Cooler does not
function.
Cooler alarm registers
‘excess temperature’.
Cooler turns gas
measuring pump of
automatically.
Membrane pump
faulty;
Contamination of the
membrane pump;
Sample probe/hose
clogged up or lead
squashed;
Sample gas hose to
analyser clogged up or
squashed;
Optional liquid alarm
sensor:
Sensor turns
measuring pump off
automatically;
Optional flow meter:
Needle valve closed. Check supply voltage with model type plate;
OK?
Check whether the supply voltage plug is insert
correctly and if the main switch is turned in position
‘I’
OK?
Check the fine fuse in the power socket;
OK?
Ambient temperature too high.
OK?
Free convection in case impaired  case
temperature too high;
OK?
Cooler faulty (for check see manual ECP20-1,
3-1.10ME).
OK?
Check voltage on clamps X1/11 and X1/8 ;
OK?
Remove the hoses at head of pump and check;
OK?
Clean pump if necessary;
OK?
Remove sample hose at gas inlet;
Gas flow?
Clean contaminated lead or replace;
No gas flow?
Remove sample gas hose on analyser side and
check via hose thread if sample gas flows;
No gas flow?
Clean contaminated leads or replace;
Gas flows?
Momentary overloading of the cooler due to
excessive amount of condensate;
OK?
Check hoses for condensate removal;
OK?
Check Pre-filter and if necessary replace;
OK?
Check hoses of the peristaltic pump (see manual
SR25.1, 3-7.1-ME);
OK?
Check peristaltic pump SR25.1 (see manual
SR25.1, 3-7.1-ME);
OK?
Check cooler according to instruction manual;
Adjust needle valve(s) to the desired flow.