Intek RheoVac 950A - Manual (Page 22)

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4.3 TROUBLESHOOTING
4.3.1 Diagnostic Messages
Table 6 provides a guide for plant personnel to identify causes of problems and determine
appropriate actions to resolve problems observed. If problems are encountered and factory
assistance is desired, please contact the factory.
Table 6 Troubleshooting Guide (Diagnostic Messages)
MESSAGE CODE
Description/Symptom
PROBABLE CAUSE ACTION
MSG-0
Communications not
being received from
probe(s)
1. Improper cable hookup
2. Blown main fuse
3. Failed RS-485 circuit
4. Damaged flow sensor
1. Verify plug-in connector is properly
mated
2. Check F1 fuse on probe board
3. Check all cable connections
4. Contact factory
MSG-1
Invalid data received
from probe(s)
1. Failed RS-485 communications
component
1. Check wiring
2. Contact
factory
MSG-2
Flow sensor heater
“OFF”
1. Blown heater fuse
2.
Failed electronic component
1. Contact factory
MSG-3
RS sensor power
“OFF”
1. Probe temperature too high
2.
Liquid water on probe tips
1. Check that probe temperature is
<160ºF
2. Contact factory
MSG-4
RS heater “OFF”
1. Component failure 1. Contact factory
MSG-5
Circuit issue
1. Problem with circuitry 1. Contact factory
MSG-6
Temperature alarm
(above 210ºF/99ºC)
1. Steam in exhaust pipe
1. Remove probe or cool line ASAP!
2.
Once line has cooled down and
probe is reinstalled, check unit for
proper function
MSG-7
Wet probe
1. Liquid water on probe tip
1. Remove probe ASAP!
2. Contact factory
MSG-8
RS sensor problem
1. RS sensor problem
1. Remove from line, allow 24 hrs with
power on to dry out RS sensor,
reinsert probe
2. Contact factory
Mass flow output
saturates high, will not
respond to flow changes
1. Flow rate is not within range of
calibration
2. Blown heater fuse
3.
Failed electronic component
1. Contact factory about re-ranging
instrument
2. Contact factory
Mass flow output
saturates low, will not
respond to flow changes
1. Flow rate is not within range of
calibration
2. Failed electronic component
1. Contact factory about re-ranging
instrument
2. Contact factory