15
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSES
SOLUTIONS
Power is applied to unit but
the display does not light.
Unit works but occasionally
the display freezes or skips
counts.
Input signal is connected but
the display reading is inaccu-
rate.
Any display (A,B or C)
reading FFFFF.
Display C reading 0
1. AC or DC power wiring is
incorrect.
1. Line noise is effecting the
processor due to a current
spike or surge.
1. Input wiring is incorrect
2. Scaling K factors are incor-
rect.
3. Transmitting device is de-
fective.
4. Unit is defective.
1. Display is in overflow con-
dition.
1. This will be displayed if:
A-B = 0 or when the unit is set
for A
÷
B or A-B
÷
B where A or B
equals 0.
1. Recheck power wiring.
1. Use a different power sup-
ply or install a surge suppres-
sor.
1. Recheck input wiring.
2. Recheck K factor settings.
3. Replace transmitting device.
4.To confirm, set K factors @
1. Apply a 3-30V signal @
1Hz to input A (pin 5). When
viewing the A display the unit
should display the frequency
value that is applied. If not call
factory for an RMA#.
1. Change the decimal point
location.
1. Check input wiring.
2. Be sure display C is set at
desired reading.
IF YOU HAVE ANY OTHER PROBLEMS, PLEASE CALL THE FACTORY.
