Apex Instruments, Inc.
52
XD-502 Digital Console
Issue Resolution
- Filters are dirty and need to be replaced
- Obstruction in sample flow path
- Blockage or kinks in plumbing
- Leak in console plumbing or sample train
Maximum vacuum or flow rate
decreases
Pump motor fails to start or hums
Probe doesn’t heat or heats
slowly
Oven doesn’t heat or heats slowly
User display doesn’t power on
Console doesn’t power on
- Check for correct current (5 to 6 Amperes)
- Check to see if fuse is blown
- Unit has frozen due to ambient temperature, move pump to a warmer environment
to “heat” it up and then return to the sampling location
- Unit has overheated
- Console is connected to incorrect voltage power source (240V console powered by
120V power source, for example)
- Verify that the correct thermocouple is plugged in
- Verify that the Fuji controller settings are correct and adjusted to the correct set
point
- Auto-tune the temperature controller
- Check all connections for probe power (output on console end, output on oven end,
power plug from probe to oven, and TCs)
- Verify that the correct thermocouple is plugged in
- Verify that the Fuji temperature controller settings are correct and adjusted to the
correct set point
- Check all connections for the oven power (output on console end, output on sample
case end, and TCs)
- Check connections on the board for proper power input
- Ensure console is being used in operational range of -13 to 158 °F (-25 to 70 °C)
- Check the position of the circuit breaker switch, if pop-out switch is popped out and
red is showing, push it back in
- Check to make sure the console is plugged in to a working power source
5.4 Additional Common Console Problems
!
CAUTION