Operating instructions

8
TROUBLESHOOTING
Should trouble develop, proceed as follows:
1. Check AC input power to the control module
2. Check the fuse, accessible at the lower left side of the PD100 housing.
3. When powers is applied, if the green and amber indicators show a response to the metal
condition in front of the probe and the output relay does not switch, check that the reset
jumper is installed (if you want the relay to follow the metal condition). The jumper is
installed between RESET and COM. on the terminal strip. If the unit is reset by an external
machine START button, check wiring across the Reset and COM terminals or the START
button contacts.
4. When power is applied, if the OUT indicator is on solidly while the OK indicator is flashing,
check for a missing, disconnected, open, or shorted probe.
5. If both indicators flash in unison, the system is indicating an invalid calibration. The causes
can be many. Among them, an attempt to calibrate with the target too far from the probe, a
shorted receiver probe, incorrect probes for the material being gauged. If the problem
cannot be resolved, call the factory for assistance.
For further information or service assistance, contact Prime Controls, Inc., 4551 Gateway
Circle, Dayton, Ohio 45440-1711. Phone: [phone], Fax: [phone]. Mention
model number and serial number.