Watts HF scientific CLX- XT - 9.4 Reagent Clogs; 9.5 Diagnostic Chart; 9.6 Technical and Customer Assistance

CLX-XT (28652) Page 29
REV 5 (5/2020)
9.4 Reagent Clogs
If reagents fail to flow or Prime it may be due to a clog in either the tubing or at a check
valve. To alleviate this you may have to flush the system with Chlorine Free water,
preferably Deionized water. See section10.3 Check Valve Flushing Kit.
9.5 Diagnostic Chart
Symptom
Cause
Cure
Lower display shows MA
4-20 mA loop open
Check wiring. See sections
4.3.4 and 7.2
Lower display shows FAIL
Major system fault
Refer to section 9.1
Readings are erratic
(1) Bubbles in solution
(2) Debris in flow
(1) Install bubble elimination
chamber.
(2) Clean T-strainer
Readings are lower than expected
(1) Condensate or leaky
measurement cuvette
(2) Measurement cuvette
dirty
(3) Reagents bad or expired
(4)
Buffer reagent not being
dispensed
(1) Install desiccant cartridge
kit
(2) Replace or clean cuvette
(3) Replace reagents
(4) Check buffer lines and
check valves.
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-XT to post a
reading
9.6 Technical and Customer Assistance
If for any reason assistance is needed regarding this instrument please do not hesitate to
contact either the HF scientific Technical Service Department or the HF scientific
Customer Service Department:
HF scientific
16260 Airport Park Drive, Suite 140
Fort Myers, Florida 33913
Phone: (239) 337-2116
Toll Free (888) 203-7248
Fax: (239) 454-0694
Email: hf.info@wattswater.com
www.hfscientific.com