Conair GB User Manual
Page 83
Occasionally, the system gets STUCK doing retries of a component but
the retry time is so short that nothing gets dispensed.
* The LAG TIME parameter is set for too short a time. See KEYPAD,
TIME, and PARAMETER, _LA.
* A valve is sticking closed. Check for free operation when air
pressure is removed.
The system USED TO WORK but now it does unexplainable things.
* Static or a voltage surge has altered RAM memory. Do a CLEAR or
CLEAR ALL. See "CLEAR" RESTART or "CLEAR ALL" RESTART.
Then do a LOAD CELL CALIBRATION, and RATE CALIBRATION for ALL
materials.
The Display reads 3100.0 even with the bin empty. This is the upper
limit load cell readout.
* The Load Cells are not plugged in and the circuitry has drifted
to the top limit.
* The load cells have been overloaded way beyond their limit and
are now permanently deflected.
Dispenses from a slide gate are not as consistent as they should be. *
The slide gate is sticking slightly. With the hopper empty, move
the slide manually to see that it moves freely. Press up or down on
the air cylinder to adjust for proper alignment.
* The material does not flow very well. A bridge breaker adaptor
may be required.
Load Cell weight readings are not holding steady. They vary as much as
100 grams from second to second.
* This is static and improper grounding. See WIRING CONSIDERATIONS
* If readings drift slowly in one direction, requiring frequent
recalibration, a component on the circuit board is most likely
faulty. Call us.
* If TARE weights are not steady, something may be physically
interfering with free movement of the cells.
At the end of each cycle the MIX MOTOR runs for a fraction of a second
only.
* The MIX MOTOR pulls a heavy amp load on start up. If the power
supply is not adequate (like when using an extension cord), the
voltage will drop so low that the computer will reset and the
mix motor signal will shut off. The display will show this by
restarting as if power was just turned on. Provide a better
supply of power; remove extension cord or use larger gage wire.
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