M&C TechGroup MP-F10_R Operator's manual - Manual (Page 17)

10.1a-ME Gas sampling and gas conditioning technology 17
15 TROUBLE SHOOTING
Before working on the pump isolate the power supply securely, then check that the lines are not live.
Problem/Indication Possible cause Check/Action
Pump produces no
flow No main supply Check power supply; Check plug for correct
fit
Connections or lines are
blocked Remove blockade
An external valve is closed or
a filter is blocked Open valve or clean dirty/blocked filter
Liquid (condensate) has col-
lected in the pump head Let pump convey air a few minutes
Flow, pressure or
vakuum too low Diaphragm or valves are worn Change diaphragm or/and valves
Compare the actual perform-
ance with the figures in chap-
ter 9 The pump is not designed for this condition
There is pressure on the
pressure side and at the same
time vacuum on the suction
side The pump is not designed for this condition
The cross-section of the
pneumatic lines or connected
components is too small, or
they are restricted
To measure the performance, disconnect the
pump from the system (smaller diameter
tubing or a valve can significantly affect
performance)
A leak at the connectors, lines
or pump head. Bellows or
valve plate is damaged or
pump head is contaminated Insulate the leak, tighten the screws, clean
or exchange contaminated parts