Ecotech Acoem Serinus 10 - Page 165

Troubleshooting
Page 165
Low Span
Leaks
Selective scrubber
A leak in the instrument or calibration system
dilutes the sample stream and causes low span
readings and noise.
Preform Ozone scrubber check (refer to
Section 6.4.4).
Span calibration out
Adjust the span using the calibration procedure
(refer to Section 5.5).
No Response to Span
Gas
Leaks/blockages
Leak or blockages in tubes or valves. Perform leak
check and flow check and repair any
leaks/blockages.
Faulty calibration source
Check calibration system for the following:
Gas is plumbed correctly.
Is not contaminated.
Has no leaks and is an Ozone transfer standard
with current certification (ensure excess source
flow is generated).
Hardware fault
Faulty optical bench assembly.
Instrument gain set too
low
Edit the instrument gain to 1.00 before preforming
transfer standard calibration.
Zero Drift
No flow
Check sample flow.
Faulty zero air
Ensure zero air sources are not overly polluted.
Leak
Perform leak test.
A/D Conversion Error
Temperature/pressure
error
Replace main controller PCA.
Input Pot Limited to 0 or
255
Damaged UV lamp
Replace UV lamp, if that is unsuccessful replace
lamp driver PCA.
Non Liner Response
Leak
Perform leak test (refer to Section 6.4.3).
Selective Scrubber
Preform Ozone scrubber check (refer to
Section 6.4.4).