User Manual

CLX (9/07) Page 24
REV 3.1
9.2 Clearing Faults
Every time SERVICE mode is exited, all faults are cleared. If the original fault or a new
fault occurs, it will be posted.
9.3 Diagnostic Chart
Symptom Cause Cure
Lower display shows MA
4-20 mA loop open Check wiring. See sections
4.4.4 and 7.2
Lower display shows FAIL
Major system fault Refer to section 9.1 & 9.2
Readings are erratic
(1) Bubbles in solution
(2) Debris in flow
(1) See above
(2) Install T strainer at inlet
Readings are lower than expected
(1) Condensate or leaky
measurement cuvette
(2) Measurement cuvette
dirty
(3) Reagents bad or expired
(1) Install desiccant cartridge
kit
(2) Replace or clean cuvette
(3) Replace reagents
Upper display flashes Sample Over-Range Check sample. Sample may be
too high to read.
Upper display shows nOnE while
attempting to calibrate
No current reading displayed Wait for CLX to post a reading
9.4 Technical and Customer Assistance
If for any reason assistance is needed regarding this instrument please do not hesitate to
contact either the HF scientific, inc. Technical Service Department or the HF scientific,
inc. Customer Service Department:
HF scientific, inc.
3170 Metro Parkway
Fort Myers, Florida 33916-7597
Phone: [phone]
Fax: [phone]
Email: [e-mail]
www.hfscientific.com