PD6928 Ex-Proof & I.S. Loop-Powered Flow Rate/Totalizer
Instruction Manual
79
Troubleshooting Tips
Certain sequences of events can cause unexpected results. To solve these issues, it is best to start fresh from factory defau lts and
use the manual as a step by step programming guide, rather than a random approach to programming. To reset the meter to factory
defaults, see
on page
. In addition, for best results, we recommend using the free
for all programming needs.
Symptom
Check/Action
No display at all
Check:
1.
The 4-20 mA current loop is providing at least 3.5 mA to the meter.
2.
The voltage drop of all devices connected to the 4-20 mA current loop does not
exceed the max rating of the loop power supply.
Not able to change setup or
programming,
LOCKED
is
displayed
Meter is password-protected. Enter correct five-digit password to unlock or Master
Password of 50865.
Meter display flashes:
1.
99999
2.
-9999
Check that the number of digits required for the scaled value does not exceed the
maximum digits for the display. If it does, try adjusting the decimal point location for less
precision or changing the PV display to the bottom display.
Display is unstable
Check:
1.
Input signal stability and value.
2.
Display scaling vs. input signal.
3.
Filter and bypass values (increase).
Display response is too slow
Check filter and bypass values
Display reading is not accurate
Check:
1.
Input signal conditioner selected: Linear, square root, etc.
2.
Scaling or calibration
Display does not respond to input
changes, reading a fixed number
Check display assignment. It might be displaying max, min, or set point.
Display shows:
MAX
,
MIN
,
RATE
,
TOTAL
,
or
GTOT
and a number
Display has been locked. Press
Enter
to unlock the display readings.
Relay operation is reversed
Check fail-safe settings in
Output
menu
Relays do not respond to signal
Check:
1.
Relay action in
Output
menu
2.
Set and reset points
3.
Check manual control menu
If the display locks up or the meter
does not respond at all
Cycle the power to reboot the microprocessor.
CapTouch buttons do not respond
1.
If hand-symbol is flashing, multiple buttons were touch at the same time, wait a few
seconds until the hand symbol goes off.
2.
If
Delayed
mode has been set, press & hold any button for 5 seconds, the buttons
should respond normally.
3.
If the slide switch on the display module is in the Lock position, move the switch to
the Unlock position; see
Disabling the CapTouch Buttons
on page 26.
Other symptoms not described
above
Call Technical Support for assistance.
