Emerson Fisher FIELDVUE DVC6000f Instruction Manual page 285

Symptom
14. Instrument will not calibrate, has
sluggish performance or oscillates.
15. Instrument will not calibrate.
16. ValveLink diagnostic tests provide
erroneous results.
17. Cannot perform advanced
diagnostics.
18. A PlantWeb alert is active, but not
reported (broadcast) automatically.
19. Field Communicator does not turn
on.
December 2009
Maintenance and Troubleshooting
Table 7-2. Instrument Troubleshooting (Continued)
Possible Cause
14.p Defective relay.
14.q Defective 67CFR regulator, supply pressure gauge
jumps around.
15.a Configuration errors.
15.b Feedback arm bent/damaged or bias spring
missing/damaged.
15.c Feedback arm loose on travel sensor.
15.d Travel sensor mis-adjusted.
15.e Cables not plugged into PWB correctly.
15.f Broken travel sensor wire(s).
15.g Open travel sensor.
15.h Travel sensor "frozen", will not turn.
16.a Defective pressure sensor(s).
16.b Pressure sensor O-ring(s) missing.
17.a Instrument does not have proper tiering.
18.a PlantWeb alerts in firmware 1.5 and higher are
mode-based. Transducer block mode may be in MAN
or OOS.
19.a Battery pack not charged.
Action
14.p Depress relay beam at adjustment location in
shroud, look for increase in output pressure. Remove
relay, inspect relay seal. Replace relay seal or relay if
I/P converter ass'y good and air passages not blocked
(refer to Replacing the Pneumatic Relay on page
7-8). Check relay adjustment (refer to page 5-4 of the
Calibration Section).
14.q Replace 67CFR regulator.
15.a Verify configuration.
15.b Replace feedback arm and bias spring (see the
Maintenance section). Perform Device Setup (see
page 3-2 of the Basic Setup Section).
15.c Perform Travel Sensor Calibration procedure
(refer to the Travel Sensor section on page 7-10).
15.d Perform Travel Sensor calibration procedure
(refer to the Travel Sensor section on page 7-10).
15.e Inspect connections and correct.
15.f Inspect wires for broken solder joint at pot
or broken wire. Replace travel sensor (refer to the
Travel Sensor section on page 7-10).
15.g Check for continuity in electrical travel range. If
necessary, replace travel sensor (refer to the Travel
Sensor section on page 7-10).
15.h Rotate feedback arm to ensure it moves freely.
If not, replace the travel sensor (refer to the Travel
Sensor section on page 7-10).
16.a Replace PWB (see Replacing the PWB
Assembly on page 7-7).
16.b Replace O-ring(s).
17.a Upgrade tiering.
18.a Check transducer block mode. Change to AUTO
if appropriate.
19.a Charge battery pack.
Note: Battery pack can be charged while attached to
the Field communicator or separately. The 475 Field
Communicator is fully operable while the battery pack
is charging. Do not attempt to charge the battery pack
in a hazardous area.
7
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