ProtEX-MAX PD8-6060 Explosion-Proof Dual-Input Meter Instruction Manual
62
Troubleshooting Tips
Symptom
Check/Action
SafeTouch buttons do not respond
If mechanical button was pushed. The SafeTouch buttons will be re-
enabled automatically
60 seconds
after the last button push.
If slide switch on connector board is in DISABLE position, switch to
ENABLE.
Strong direct sunlight may interfere with SafeTouch button operation. It is
recommended to operate the buttons by standing so as to block direct
sunlight.
Serial Communications Power LED
Indicator is off
1. Check modular cable connection
2. Check power to the device
If only the TX (or DATA IN) data
status LED is flashing when serial
communications attempted
1. Check serial cable
2. Check protocol selected on device
3. Check instrument address & baud rate
4.
Check program address & baud rate
If both data status LEDs (TX and RX)
are off when trying to communicate
Remove all unnecessary cables and instruments from the bus. Try getting
the system to work with only one device (to ease troubleshooting) and then
expand the system one device at a time.
Communications slow
Increase the baud rate
Random communication errors
1. Increase the TX delay time
2. Decrease the baud rate
Power LED is off
1. Check modular cable connection
2. Check power to instrument
No display at all
Check power at power connector
Not able to change setup or
programming,
Locd
is displayed
Meter is password-protected, enter correct six-digit password to unlock
Meter displays error message during
calibration (
Error
)
1. Check signal connections
2. Check input selected in
Setup
menu
3. Check minimum input span requirements
Meter displays
1.
999999
2.
-99999
1. Check input selected in
Setup
menu
2. Check corresponding signal at Signal connector
Display is unstable
1. Check input signal stability and value
2. Check display scaling vs. input signal
3. Check filter and bypass values (increase)
Display response is too slow
Check filter and bypass values
Display reading is not accurate
1. Check signal input conditioner selected: Linear, square root, etc.
2. Check 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 alternates between
1.
Hi
and a number
2.
Lo
and a number
Press Menu to exit max/min display readings.
Relay operation is reversed
1. Check fail-safe in
Setup
menu
2. Check wiring of relay contacts
Relay and status LED do not
respond to signal
1. Check relay action in
Setup
menu
2. Check set and reset points
Flashing relay status LEDs
Relays in manual control mode or relay interlock switches opened.
If the display locks up or the meter
does not respond at all
Cycle the power to reboot the microprocessor.
Other symptoms not described above Call Technical Support for assistance.
www.
GlobalTestSupply
.com
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