Chapter Two: Installation
Setup
13
How to Wire a PDR Series Readout to a Type 722 Transducer with a 9-pin Type
“D” Connector.
Caution
DO NOT use the -15 VDC output of the PDR readout to power the
722 transducer. When the -15 VDC signal of the PDR is connected to
the power return of the transducer, a short between the -15 VDC of
the transducer and the A GND of the PDR occurs. The PDR readout
will blank out. Either unit may be damaged.
The correct cable to use to connect the 9 pin Type “D” connector to the PDR readout is a CB700-
2 cable. This cable has the mating Type “D” connector on the transducer end and flying leads on
the PDR end. Table 4 lists the pin assignments for the various colored wires on the flying leads
end of the cable.
Connections Between a Transducer with a Type “D” Connector and a PDR Readout
Pin Number
Transducer Signal
Flying Lead Color Code
PDR Signal
1
Pressure Output
Red
Pressure Input
4
+ Power Input
Green
+ 15 VDC
8
Pressure Return
Black
Signal Ground (A GND)
9
Power Return
White
Power Ground (D GND)
Table 4: Connections Between a Transducer with a Type “D” Connector and a PDR Readout
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