Intek RheoVac DR - Manual (Page 19)

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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
PROBA BLE CAUSE ACTION
M SG -0
Communications not
being received from
prob e(s)
1. Improper cable hoo kup
2. Blow n main fuse
3. Failed RS-4 85 c ircuit
4. Damaged flow sensor
1. Verify plug-in connector is mated
2. Check all cable connections
3. Check F1 fuse on prob e board
4. Contact factory
M SG -1
Invalid data received
from p robe(s)
1. Failed RS-485 com munications
compo nent 1. Check wiring
2. Contact factory
M SG -2
Flow sensor heater
“OFF”
1. Blow n heater fuse
2. Failed electronic component
1. Contact factory
M SG -3
Relative saturation
sensor power “OFF”
1. Probe temp erature too high
2. Liquid water on probe tips
1. Che ck to b e sure p rob e temp erature is
<16 0°F
2. Contact factory
M SG -4
RS heater “OFF”
1. Comp onent failure 1. Contact factory
M SG -5
Circuit issue
1. Problem with circuitry 1. Contact factory
M SG -6
Tem peratu re alarm
(above 210°F/99°C)
1. Steam in exhaust pipe
1. Remove probe or cool line ASAP!
On ce line h as co oled dow n and probe is
reinstalled, check unit for proper
function.
M SG -7
Wet probe
1. This usually indicates a vacuum dryer
design or operation problem that
requires corrective action.
1. Contact factory
M SG -8
RS sensor problem
1. RS sensor problem
1. Rem ove from line , allow 2 4 hrs w ith
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. Blow n heater fuse
3. Failed electronic component
1. Contact factory about re-ranging
instrument
2. Rep lace fuse
3. Co ntact fac tory
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