Fisher-Rosemount 180-1300-01, Instruction Manual

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CHEMPURE MANUAL SECTION 11
TROUBLESHOOTING
The troubleshooting chapter is divided into two sec-
tions:
• Troubleshooting Chart – A list of symptoms, proba-
ble causes, and remedies.
• Test Functions – Series of self test functions for
diagnostic information.
11.1 TROUBLESHOOTING CHART
Symptoms observed during operation are generally
enough to identify a faulty component. Such symptoms,
together with probable causes and remedies are listed
in the following troubleshooting chart.
SECTION 11
TROUBLESHOOTING
11.1.1 SYMPTOM CHART
Problem Probable Cause Remedy
No power Power switch OFF Press power switch ON
Pump inoperative Pump switch OFF Press switch ON
Pump fuse blown Replace fuse
Pump platen not Lift off and replace platen properly seated
Leak detector activated Find and fix leaking connector, tubing, etc. and dry contacts
Lamp detector activated Verify that colorimeter lamp is on, if not replace lamp bulb
Defective pump. Call Rosemount Analytical
Leak detector LED Leak in fluidics Repair leak and dry leak detector contacts;
lights up turn main power OFF for 20 seconds
High humidity Adjust set screw on the fault/analog circuit board; turn
clockwise to decrease sensitivity
Display reads –LO– Reading is below baseline On silica systems, check for proper operation of molybdate
valve
All reagents are not flowing Check flow of all reagents
Improper reagents or baseline Check reagents and tubing connections solution
Display reads –HI– Reading is above chemistry Very high sample or contamination
linearity
Debris in flowcell
Clean flowcell
Display reads E–LO Flow cell coated Clean the flow cell with 0.5 N NaOH followed by deionized
wate r and then with 0.5 N H2SO4 for three minutes each
Broken flow cell Replace flow cell
Improper reagents Check reagents, replace if necessary
Improper connection Check connections
of reagents to reaction
vessel assembly
Standard solutions
Check preparation
improperly prepared
or contaminated
Display reads E–HI Analyzer not in calibration Press auto cal
Defective Analog PC board Call Rosemount Analytical
Decreased flow rate Tube pinched shut or Replace tubing
or surging clogged from deposits
Pump tubes deteriorated
Replace tubing
Pump tubes worn Pump tubes stored Replace tubes and store replacements
prematurely improperly. at 50 - 80°F.
Blocked or pinched tubing Check flow in all lines
lines on suction side of pump