Precision Digital Corporation ProtEX-MAX PD8-6300, Instruction Manual

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PD8-6300 Pulse Input Rate/Totalizer, Counter & Tachometer
Instruction Manual
60
Troubleshooting Tips
This meter is a highly sophisticated instrument with an extensive list of features and capabilities. If the programming
buttons are used to program the meter, it may be a difficult task to keep everything straight. That is why we strongly
recommend the use of the free
MeterView Pro software for all programming activities. A USB cable is provided with
the meter for programming with MeterView Pro software.
If you have programmed the meter with the programming buttons and it is not working as intended, try re-programming
the meter using MeterView Pro software.
Symptom Check/Action
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 or Master Password of 508655.
Meter does not respond to input change
If a Low-Flow Cutoff Value has been programmed, the meter will
display zero below that point, regardless of the input
– which can
appear like the meter is not responding to an input change. Check
to make sure the problem is not being caused by an undesired
low-flow cutoff value.
To prevent the display from showing a negative value, set the
low-flow cutoff to a value greater than zero.
Meter displays error message during
calibration (
Error
)
Check:
1. Signal connections
2. Minimum input span requirements
Meter displays
1.
99999
2.
-9999
Check:
1. Input selected in Setup menu
2. Corresponding signal at Signal connector
Display is unstable Check:
1. Input signal stability and value
2. Display scaling vs. input signal
3. Filter and gate values
Display response is too slow Check filter and gate values
Display reading is not accurate Check scaling or calibration
Display does not respond to input
changes, reading a fixed number Check the 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 Check:
1. Fail-safe in Setup menu
2. Wiring of relay contacts
Relay and status LED do not
respond to signal Check:
1. Relay action in Setup menu
2. Set and reset points
Flashing relay status LEDs Relays in manual control mode or relay interlock switches opened.
Meter not communicating with
application programs Check:
1. M-Link Connector installed between P
RO
V
U
electronics and
ProtEX-MAX connector board. See Figure 4 : Integrated
P
RO
V
U
Required Connections on page 24
2. Serial settings
3. Meter address and baud rate
If the display locks up or the meter does
not respond at all Cycle the power to reboot the
microprocessor.
SafeTouch buttons do not respond
1. If mechanical button was pushed, the SafeTouch buttons will be
re-enabled automatically 60 seconds after the last button push.
2. If slide switch on connector board is in DISABLE position,
switch to ENABLE.
3. Strong direct sunlight may interfere with SafeTouch button
operation. It is recommended to operate the buttons by
standing so as to block direct sunlight.