Precision Digital PD6770 - Manual (Page 14)

PD6770 Loop-Powered Process Meter Instruction Manual
14
TROUBLESHOOTING
The rugged design and the user-friendly interface of the meter should make it
unusual for the installer or operator to refer to this section of the manual. If the meter
is not working as expected, refer to the recommendations below.
Troubleshooting Tips
Symptom Check/Action
No display Check input signal connections.
Rate display unsteady during
calibration Adjust LO FINE or HI FINE
controls to fine-tune the display.
Meter displays 1 on the left
most digit location
Check signal level is not over
range.
Dial down the HI control and re-
calibrate at 20 mA.
Display is faded Check input signal is not under
1 mA.
If the display locks up or the
meter does not respond at all Perform hard reset by shorting
S+ and S- terminals.
Backlight does not appear Verify backlight is installed.
Check signal connections are as
shown in Figure 3 on page 10.
Other symptoms not described
above Call Technical Support for
assistance.