Ametek 5000 Manual page 41

Possible Cause
Analyzer Reads High
Incorrect flow rate
Incorrect back pressure
Incorrect operating parameters
Leaks in sample tubing
Low oven temperature
Moisture Generator Output Reading Incorrect
Incorrect flow rate or back pressure
Incorrect operating parameters
Incorrect calibration values entered
Dry moisture generator reservoir
Incorrect moisture generator
temperature
Faulty reservoir tubing bundle
Cell_Temp_Alert
Environmental Temp
Faulty electronic control ampplifier
Troubleshooting Guide for 5000 Analyzer
Isolation Procedure
Calibration has exceeded Max_Span
and/or Max_Cal_Err limits.
Check flow rates, generator temp-
erature, and back pressure unit
board.
Measure temperature of moisture
generator J2 Pins 2 and 3 of field
unit board.
Check for CR1 blinking
Remove cell oven connector J1,
CR1 will go on short pins 1 and 4
together on the electronic control
amplifier PCB and CR1 will go off.
Essential Health & Safety Requirements
Corrective Action
Check, and if necessary, reset flow rate.
Check, and if necessary, reset back
pressure.
Check all values against Calibration
Data Sheet.
Correct leaks as necessary.
Set oven temp to 60 °C ± 0.25 °C.
Check, and if necessary, reset flow rate
or back pressure.
Check all values against Calibration
Data Sheet.
Run display routine and check all values
against those listed on Calibration Data
Sheet. Re-enter values if necessary.
Recalculate Span values.
If reading are OK, check, and if
necessary, fill the reservoir.
Adjust R26 on field unit board as
necessary to obtain 60 °C.
Replace generator.
Housing or ambient temperature is too
hot or too cold for the electronic control
amplifier to control cell temperature.
If not, replace electronic control
amplifier PCB.
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