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CABLE TYPE F2
Red = +Power
White = Common
Green = Output
CABLE TYPE C1
Red = + Power
White = Common
Green = Output
HIRSCHMANN TYPE
PIN-1 = +Power
PIN-2 = Common
PIN-4 = Output
BENDIX 4-PIN, 6-PIN
Pin A = +Power
Pin B = Output
Pin D = Common
Voltage Output Units 1-5, 1-6 Vdc
Current Output Units 4-20mA
Ratiometric (mV/V)
PX791 & PX792 SANITARY TRANSDUCERS –
ELECTRICAL CONNECTIONS
CABLE TYPE F2
Red = +Power
White = – Power
Green = +Output
Black = – Output
CABLE TYPE C1
Red = +Power
White = – Power
Green = +Output
Black = – Output
HIRSCHMANN TYPE
Pin A = +Power
Pin B = +Output
Pin C = –Output
Pin D = – Power
BENDIX 4-PIN, 6-PIN
Pin A = +Power
Pin B = – Power
Pin C = +Output
Pin D = – Output
Pin E = Shunt Cal.
Pin F = Shunt Cal.
CABLE TYPE F2
Red = +Power
Black = Power
CABLE TYPE C1
Red = +Power
Black = Power
HIRSCHMANN TYPE
Pin-1 = +Power
Pin-2 = Power
BENDIX 4-PIN, 6-PIN
Pin A = +Power
Pin B = Power
WARNING:
READ BEFORE
INSTALLATION
The diaphragm is very sensitive and fragile!
Do not let anything touch the diaphragm but
the fluid to be measured. Fluid hammer and
surges can destroy any pressure transducer
and must always be avoided. A pressure
snubber should be installed to eliminate the
damaging hammer effects. Fluid hammer
occurs when a liquid flow is suddenly
stopped, as with quick-closing solenoid
valves. Surges occur when flow is suddenly
begun, as when a pump is turned on at full
power or a valve is quickly opened.
Liquid surges are particularly damaging to
pressure transducers if the pipe is originally
empty. To avoid damaging surges, fluid lines
should remain full (if possible), pumps
should be brought up to power slowly, and
valves opened slowly. To avoid damage
from both fluid hammer and surges, a surge
chamber should be installed.
Symptoms of fluid hammer and surge's
damaging effects:
a) Pressure transducer exhibits an output
at zero pressure (large zero offset). If
zero offset is less than 10% FS, user
can usually re-zero transducer, install
proper snubber and continue
monitoring pressures.
b) Pressure transducer output remains
constant regardless of pressure.
c) In severe cases, there will be no
output.