MAMAC SYSTEMS PR-264 Manual

Accuracy*: ± 1% FS
Overpressure: 300%
Burst Pressure: 500%
Supply Voltage: 12–40 VDC
12–35 VAC (VDC output units only)
Supply Current: VDC Units – 10 mAmax.
mAUnits – 20 mAmax.
Enclosure: 18 Ga C. R. Steel NEMA4 (IP-65)
Finish: Baked on enamel – PMS2GR88B
Conformance: EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range: 0°F to 180°F
(-18°C to 82°C)
T. C. Error: ±0.025%/°F (.03%/°C)
Media Compatibility: Liquid/gases compatible to
316L stainless steel
Port Connection: 1/8" NPT
Environmental: 10–90%RH Non-Condensing
Termination: Unpluggable screw terminal block
Wire Size: 12 Ga max.
Load Impedance: 1.6K ohms max. at 40 VDC (mA
output units)
1K ohms min. (VDC output units)
Weight: Enclosure 1.0 lbs. (.45 kg)
*Includes non-linearity, hysteresis and non-repeatability
RANGE OUTPUT
SPECIFICATIONS
Inspection
Requirements
Mounting
R1 (psig)
R2 (psig)
R3 (psig)
R4 (kPa)
0 to 100 / 0 to 50 / 0 to 25
0 to 300 / 0 to 150 / 0 to 75
0 to 500 / 0 to 250 / 0 to 125
0 to 700 / 0 to 350 / 0 to 175
(4–20 mA 2-wire)
(0–5 VDC/0–10 VDC
field selectable)
mA
VDC
For Additional Information See PR-264 Data Sheet
INSTALLATION
8189 Century Boulevard • Minneapolis, MN 55317-8002 • USA
800-843-5116 • 952-556-4900 • Fax [phone]
[email protected] • www.mamacsys.com
Model PR-264
Technical Information
TI.264-04
PRESSURE TRANSDUCER
Inspect the package for damage. If damaged, notify the
appropriate carrier immediately. If undamaged, open the
package and inspect the device for obvious damage.
Return damaged products.
Warning:
• Do not use on oxygen service, in an explosive/hazardous
environment, or with flammable/combustible media.
•Disconnect power supply before installation to prevent
electrical shock and equipment damage.
•Make all connections in accordance with the job wiring diagram
and in accordance with national and local electrical codes. Use
copper conductors only.
Caution:
•Use electrostatic discharge precautions (e.g., use of wrist
straps) during installation and wiring to prevent equipment
damage.
•Avoid locations where severe shock or vibration, excessive
moisture or corrosive fumes are present. NEMAType 4
housings are intended for outdoor use primarily to provide
a degree of protection against wind-blown dust, rain, and
hose-directed water.
•Do not exceed ratings of the device.
•Tools (not provided)
- Digital Volt-ohm Meter (DVM)
- Appropriate screwdriver for mounting screws
- Appropriate drill and drill bit for mounting screws
•Appropriate accessories
•Two #8 self-tapping mounting screws (not provided)
•Training: Installer must be a qualified, experienced technician
Wiring Use maximum 12 AWG wire for wiring terminals. Use copper or
stainless steel tubing for the connection to the transducer. Refer
to Figures 1, 2, 3, & 4 for wiring information and Figures 5& 6for
switch designations.
(Wiring Instructions continued on pages 2 and 3.)
ORDERING INFORMATION: PR-264-
R5 (kPa)
R6 (kPa)
0 to 2000 / 0 to 1000 / 0 to 500
0 to 3500 / 0 to 1750 / 0 to 875
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The PR-264 must be mounted on a vertical surface with the 1/8"
NPT connection pointed downward. Refer to Figure 7 for
mounting dimensions.
1. Remove the transducer cover using a Phillips head
screwdriver.
2. Select the mounting location.
3. Mount transducer on a vertical surface with two #8 self-tapping
screws (not provided).
4. Pull wires through bottom of enclosure and make necessary
connections.
5. Replace the unit cover and make pneumatic connections.

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 OutputWiring 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 VACTransformer
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 VDCPowerSupply
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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 mAoutput ([-] 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.

Model PR-264
Technical Information
TI.264-04
PRESSURE TRANSDUCER
Page 3 of 4
mA Output
VDC Output
S1
+ -
ON
1
2
Z S
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Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
ON
1
2
S2
S1
+ - O
ON
1
2
Z S
0–100 psig / 0–700 kPa (default)
0–300 psig / 0–2000 kPa (default)
0–50 psig / 0–350 kPa
0–25 psig / 0–175 kPa
0–150 psig / 0–1000 kPa
0–75 psig / 0–500 kPa
12
O N
O N
12
O N
O N
12
O N
O N
12
O N
O N
12
O N
O N
12
O N
O N
0–500 psig / 0–3500 kPa (default)
0–250 psig / 0–1750 kPa
0–125 psig / 0–875 kPa
12
O N
O N
12
O N
O N
12
O N
O N
0–100 psig / 0–700 kPa (default)
0–300 psig / 0–2000 kPa (default)
0–50 psig / 0–350 kPa
0–25 psig / 0–175 kPa
0–150 psig / 0–1000 kPa
0–75 psig / 0–500 kPa
12
O N
O N
12
O N
O N
12
O N
O N
12
O N
O N
12
O N
O N
12
O N
O N
0–500 psig / 0–3500 kPa (default)
0–250 psig / 0–1750 kPa
0–125 psig / 0–875 kPa
12
O N
O N
12
O N
O N
12
O N
O N
0–10 VDC (default)
0–5 VDC
12
O N
O N
12
O N
O N
R1 / R4
R2 / R5
R3 / R6
R1 / R4
R2 / R5
R3 / R6
Range Configuration: Switch 1 (S1)
Range Configuration: Switch 1 (S1)
Output Configuration: Switch 2 (S2)
Caution:
Caution:
Caution:

Model PR-264
Technical Information
TI.264-04
PRESSURE TRANSDUCER
Page 4 of 4
CHECKOUT DIMENSIONAL DATA
CALIBRATION
1. Verify that the unit is mounted in the correct position.
2. Verify appropriate input signal and supply voltage.
3. Verify appropriate configuration range.
CAUTION: Never connect 120 VAC to these transducers.
Never connect AC voltage to a unit intended for DC supply.
Transducer
Operation This is a rough functional check only.
1. Adjust the pressure to obtain maximum output signal for
appropriate range.
2. Output should be 20 mA or 5 or 10 VDC.
3. Adjust the pressure to obtain minimum output signal.
4. Output should be 4 mA or 0 VDC.
Calibration of PR-264 mA Units
1. Connect terminals [+] and [-] to the appropriate power
source.
2. Connect the DVM in series on the [-] terminal.
3. Apply low pressure to the unit and carefully adjust the zero
trimmer [Z] to obtain desired low output.
4. Apply high pressure to the unit and adjust span trimmer [S]
to obtain the desired high output pressure.
5. Repeat steps 3 and 4 until desired calibration is achieved.
All units are factory calibrated to meet or exceed published
specifications. If field adjustment is necessary, follow the
instructions below.
MAINTENANCE
Regular maintenance of the total system is recommended to
assure sustained optimum performance.
FIELD REPAIR
None. Replace with a functional unit.
WARRANTY
See Data Sheet for additional information.
Calibration of PR-264 VDC Units
1. Connect terminals [+] and [-] to the appropriate power
source. The [-] terminal is also the negative output terminal.
2. Connect the DVM on DC volts across [0] and [-] terminal.
3. Apply low pressure to the unit and carefully adjust the zero
trimmer [Z] to obtain desired low output.
4. Apply high pressure to the unit and adjust span trimmer [S]
to obtain the desired high output pressure.
5. Repeat steps 3 and 4 until desired calibration is achieved.
Figure 7 – PR-264 Pressure Transducer dimensions shown in inches and
millimeters (mm).
For Technical / Application Assistance call your nearest office
8189 Century Boulevard • Minneapolis, MN 55317-8002 • USA
800-843-5116 • 952-556-4900 • Fax [phone]
[email protected] • www.mamacsys.com
EUROPE
Baird House, Units 6 & 7
Dudley Innovation Centre
Pensnett Estate • Kingswinford
West Midlands • DY6 8XZ
United Kingdom
01384-271113 • Fax [phone]
AUSTRALIA
4Arminger Court, Unit 2
Holden Hill • S.A. 5088
Australia
08-8359-4333 • Fax [phone]
CANADA
155 McIntosh Drive, Unit 5
Markham • Ontario • L3R 0N6
Canada
905-474-9215 • Fax [phone]
ASIA
No. 22 Lorong 21AGeylang #11-02
Prosper Industrial Building
Singapore • 388421
656-3927273 • Fax [phone]
MAMAC Systems, Inc., reserves the right to change any specifications without
notice to improve performance, reliability, or function of our products.
NOTE: The PR-264 is a highly accurate device. For
applications requiring a high degree of accuracy, the use of
laboratory quality meters and gauges are recommended.
TI.264-04
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