Model PR-264
Technical Information
TI.264-04
PRESSURE TRANSDUCER
Page 2 of 4
PR-264 Pressure Transducer with mA Output
TYPICAL APPLICATIONS (wiring diagrams)
Wiring PR-264 Units with VDC Output
Wiring PR-264 Units with mA Output
PR-264 Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PR-264,
4–20 mA, two-wire output pressure transducers.
Figure 1 – Wiring for mA Output Pressure Transducers with an External DC
Power Supply
Figure 2
–
Wiring for mA Output Transducers where the Controller or
Meter has Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PR-264,
0–5/0–10 VDC output pressure transducers.
Figure 3
–
Wiring for VDC Output Pressure Transducers When Applied with
External AC Supply
Signal
+
Common
Supply
Neutral
Hot
O
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
VDC Output Transducer Only
12–35 VAC Transformer
Figure 4
–
Wiring for VDC Output Pressure Transducers When Applied with
External DC Power Supply
Signal
+
Common
Supply
Common
Input Signal
O
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
VDC Output Transducer Only
12–40 VDC Power Supply
RoHS
RoHS
RoHS
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
O N
LEGEND
+
-
O
S
Z
Supply Voltage
Common
Output
Span Adjust
Zero Adjust
LEGEND
+
-
S
Z
Supply Voltage
Output
Span Adjust
Zero Adjust
ZERO
SPAN
+ -
Z S
S1
ON
1/8" NPT
Female
ZERO
SPAN
+
-
O
Z S
S2
ON
S1
ON
1/8" NPT
Female
PR-264 pressure transducers with 4–20 mA output units are powered with a
12–40 VDC supply.
The following describes the proper wiring of these pressure transducers with
mA output:
1. Remove the terminal block by carefully pulling it off the circuit board.
2. Locate the [+] and [-] terminal markings on the board.
3. Attach the supply voltage to the [+] lead.
4. Connect the 4–20 mA output ([-] terminal) to the controller’s input terminal.
5. Ensure that the power supply common is attached to the common bus of the
controller.
6. Re-insert the terminal block to the circuit board and apply power to the unit.
7. Check for the appropriate output signal using an ampmeter set on DC
milliamps connected in series with the [-] terminal.
PR-264 pressure transducers with VDC output are field selectable 0–5 VDC or
0–10 VDC output and can be powered with either a 12–40 VDC or 12–35 VAC.
The following describes the proper wiring of these pressure transducers with
VDC output:
1. Remove the terminal block by carefully pulling it off the circuit board.
2. Locate the [+], [-] and [O] terminal markings on the board.
3. Attach the power wires to the [+] and [-] terminals. The [-] terminal is also the
negative output terminal.
4. Connect the [O] terminal, which is the positive VDC output terminal, to the
controller’s input terminal.
5. Re-insert the terminal block to the circuit board and apply power to the unit.
6. Check the appropriate VDC output using a voltmeter set on DC volts across
the [O] and [-] terminals.
Caution:
Caution:
If you are using grounded AC, the hot wire must be on the [+] terminal. Also, if you are using a controller without built-in isolation, use an
isolation transformer to supply the PR-264 transducer.
Caution:
Caution:
This product contains a half-wave rectifier power supply and must not be powered off transformers used to power other devices utilizing
non-insolated full-wave rectifier power supplies.
Caution:
Caution:
When multiple PR-264 units are powered from the same transformer, damage will result unless all 24G power leads are connected to the same
power lead on all devices. It is mandatory that correct phasing be maintained when powering more than one device from a single transducer.
