TROUBLE SHOOTING
1. Gauge does not indicate differential.
A. Check for proper hook up, high to “hi” and low
to “lo”.
B. Make certain block valves are open and, if using
a 3-valve manifold, that the equalizer (balance)
valve is closed.
C. If A & B check out correctly, loosen or disconnect
the high pressure line to determine if there is
pressure to the instrument.
D. If there is pressure to the instrument, check to
determine that there is differential across the
unit being monitored. If so, contact the factory
for assistance and/or an “RGA” (return goods
authorization) number to return the instrument
for repair or replacement.
2
.
Switch doesn't function
A. Make sure you have supplied power (proper voltage)
to the unit if you ordered the power relay unit. The
reed switch output units do not require power.
B. Check that you are wiring to the correct Interface
terminals.
C. Check the reed switch interfaces to the terminal board
for loose connections. For the power relay the reed
switch(es) connect to the terminal strip on the
underside of the PCB. For the reed switch outputs the
reed switch(es) connect to positions on the bottom row
of the terminal strip on the top of the PCB (see Figure
4).
D. Make sure that the switch load does not exceed the
specified wattage rating of the switch. (steady-
state and transient). For this condition you must
contact the factory
3. Gauge accuracy and set point problems:
A. Verify gauge is not in an electromagnetic /
magnetic environment. i.e.; close proximity to high
current power lines.
B. All others, contact the factory for assistance
FIGURE 6
