Trouble Shooting - M&C PSS SS-5 Instruction Manual

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
Interruption of
gas flow;
Upper LED on
cooler does not
come on;
Middle LED on
Cooler in
cooler is green;
operation but
gas flow
interrupted;
Alarm LED on
the LA electro-
nics is red (see
4);
www.mc-techgroup.com
Possible Cause
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 flowmeter(s):
Needle valve closed.
SS-5, SS-5/3 | 1.00.01
Check/Solution
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 on connector block  (fig. 2);
OK?
Ambient temperature too high.
OK?
Free convection in
temperature too high;
OK?
Cooler faulty (for check see manual ECP1000/3000,
3.1.1-ME).
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 (see 9.);
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
peristaltic pump SR25.1, 3-7.1-ME );
OK?
Check peristaltic pump SR25.1 (see manual
peristaltic pump SR25.1, 3-7.1-ME);
OK?
Check cooler according to instruction manual;
Adjust needle valve(s) to the desired flow.

case impaired case
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