Owner's manual

- 17 -
Go to the main electronics enclosure and slide the power switch back to the “ON” position to enable
power to the electronics and the probe(s). Close hinged lid and verify display backlight is on. Clamp
close the enclosure lid, and tighten the latch screws.
4.4 TROUBLESHOOTING
Table VI 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 VI. 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 mated
2. Check all cable connections
3. Check F1 fuse on probe board
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
Relative saturation
sensor power “OFF”
1. Probe temperature too high
2. Liquid water on probe tips
1. Check to be sure probe temperature is
<160°F
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 210°F/99°C)
1. Steam in exhaust pipe
1. Remove probe or cool line ASAP!
Once line has cooled down and probe is
reinstalled, check unit for proper
function.
MSG-7
Wet probe
1. This usually indicates a vacuum dryer
design or operation problem that
requires corrective action.
1. 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. Replace fuse
3. 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