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Emerson Process Management GmbH & Co. OHG 8-11
Instruction Manual
HASAxE-IM-HS
05/2006
Effect Potential Cause How to Solve
8 Troubleshooting
8-3 Solving Problems Not Indicated by Status Messages
Readout damping
time too long
1. Wrong signal damping settings
2. Pump rate too low
3. Gas path(s) polluted
1. Check signal damping
(
5-4-3-3-1, page 5-27)
2. Distance between sampling
point and analyzer too long
Replace pump by external
model with higher pump rate
(operate in bypass mode,
4-2, page 4-4)
3. Check gas path and sample
handling system for pollution
Clean gas path
No gas flow 1. Sample gas pump (option)
switched off
2. Membrane of sample gas
pump defective
3. Sample gas pump defective
4. Solenoid valves (option) not
opened / defective
5. Gas path(s) polluted
1. Switch on sample gas pump
( 5-4-3-4, page 5-30)
2. Replace sample pump
membrane
3. Replace sample gas pump
4. External valves:
Check connection between
valves and digital outputs
Check valve seat and replace
if need be
Replace solenoid valves
For valve control via serial
interface or digital inputs:
Any valve activated?
5. Check gas path and sample
handling system for pollution
Clean gas path