Fisher FIELDVUE DVC6200 Instruction Manual page 87

Symptom
3d. I/P converter ass'y damaged/corroded/clogged.
3e. I/P converter ass'y out of spec.
3f. Defective module base seal.
3g. Defective relay.
3h. Defective 67CFR regulator, supply pressure gauge
jumps around.
4. ValveLink diagnostic tests
4a. Bent or defective pressure sensor.
provide erroneous results.
4b. Pressure sensor O-ring missing.
5. Field Communicator does 5a. Battery pack not charged.
not turn on.
September 2010
Maintenance and Troubleshooting
Table 7-3. Instrument Troubleshooting (Continued)
Possible Cause Action
3l. Check for bent flapper, open coil (continuity),
contamination, staining, or dirty air supply. Coil resistance
should be between 1680 - 1860 ohms. Replace I/P assy if
damaged, corroded, clogged, or open coil.
3m. I/P converter ass'y nozzle may have been adjusted. Verify
drive signal (55 to 80% for double-acting; 60 to 85% for
single-acting) with the valve off the stops. Replace I/P
converter ass'y if drive signal is continuously high or low.
3n. Check module base seal for condition and position. If
necessary, replace seal.
3p. 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. Check relay adjustment.
3q. Replace 67CFR regulator.
4a. Replace PWB.
4b. Replace O-ring.
5a. Charge battery pack.
Note: Battery pack can be charged while attached to the Field
communicator or separately. The Field Communicator is fully
operable while the battery pack is charging. Do not attempt to
charge the battery pack in a hazardous area.
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