Trouble Shooting And Elimination - Buhler Egk 2 Ex Bedienungs- Und Installationsanleitung

Bedienungs- und Installationsanleitung
Installation- and Operation Instruction
Meßgaskühler / Sample gas cooler EGK 2 Ex
9

Trouble shooting and elimination

!
Risk due to defective device
!
Personal injury or damage to property
In case of failure switch off the device immediately and it should not be turned
on again before elimination of the failure.
Problem / Failure
no display
display blinks red
display permanently red
directly after start-
up
during operation
condensate at gas out-
let
reduced gas flow
safety device released
For replacement of parts see chapter 8.2 Replacement of parts.
CAUTION
Possible cause
no power
safety device (motor protection
switch) has released
electronics defect
cooler not yet started or accidently
„Test"-key pressed
pressure control released
at first start-up
later
operating range not yet reached
heat insertion by sample gas too
high: dew point / flow rate / gas tem-
perature or combination too high
ambient temperature too high
aeration of cooler reduced
low temperature: sensor or elec-
tronic defect
Condensate vessel full
valve in automatic condensate dis-
charge stucked
overload of cooler / heat exchanger
gas way clogged
heat exchanger icy
motorcoil or terminal short
starting time exceeded
BX450008, 10/2006
check power supply
see there
replace (have it done)
if repeated, check power supply
start-up as described in chapter
7.2
see description in 9.2
reset pressure switch, see 9.1
wait some minutes
observe / check specifications
observe / check specifications
regard hints in chapter 6.1
dismount cooler and send in
empty condensate vessel
flush in both directions
obeserve parameter range
remove and clean or replace heat
exchanger, see 8.2.4
dismount cooler and send in
measure isolation resistance
check start-up conditions
Art. Nr. 90 31 085
Solution
37