INFICON HAPSITE ER Chemical Identification System User Manual

Page 481

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HAPSITE ER Operating Manual

9d. Check turbo speed in Service
Module program, If less then 1480
Hz, Service Module pumps may
need maintenance or the system
may have an air leak.

9d. Contact INFICON (see

Chapter 17

).

10. “Pressure too low to
read”
message at user
interfaces.

10a. Pressure is too low to read.
The system has a lower pressure
limit of 1x10

-4

Pa.

10a. Open membrane isolation
valve. This will bring the pressure
to 1-3x10

-3

Pa.

10b. Ion pump has failed to turn
on.

10b. Close and open the
membrane valve a few times. If
this fails to shock the ion pump into
starting. Contact Customer
Support (see

Chapter 17

).

11. Sample carrier over from one
run to the next.

11a. Cold spot in the sampling
system.

11a. Check to see if heat zones are
at temperature.

12. Internal Standard in back
ground.

12a. Low pneumatic (carrier gas)
pressure at GC 10-port valve.

12a. Check carrier gas pressure,
and replace canister if low.

13. Temperature zones read 99.8

o

C or higher.

13a. Component in the zone is hot. 13a. There is a problem with the

GCC card and it cannot control the
temperature.
Contact Customer Support (see

Chapter 17

).

13b. Zone is cold.

13b. Sensor could be bad. Contact
Customer Support (see

Chapter

17

).

14. Unable to read memory chips
on gas canister.

14a. Poor connections, or
damaged contact.

14a. Try re-seating canister, or try
a known good can. If this fails,
contact Customer Support (see

Chapter 17

).

14b. Processor card failure.

14b. Contact Customer Support
(see

Chapter 17

).

15. Water enters system during
decontamination.

15a. Dirt on the gaskets, or
improper seal. Clean gasket and
check seals.

15a. If problem can not be
corrected, contact Customer
Support (see

Chapter 17

).

16. Poor Gas Chromatographic
Peaks/ Poor GC sensitivity.

16a. GC column has degraded.

16a. Contact Customer Support
(see

Chapter 17

).

16b. Loose connections at sample
loop, concentrator or ferrules.

16b. Check to see if fittings and
ferrules are properly installed.

Table 16-1 Diagnosing Problems - HAPSITE

Symptom

Cause

Remedy

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