MAMAC SYSTEMS PR-243 Manual

Model PR-24
3
Technical Information
TI.243-0
2
7400 Flying Cloud Drive • Minneapolis, MN 55344-3720 • USA
800-843-5116 • 612-835-1626 • Fax [phone]
[e-mail] • www.mamacsys.com Pneumatic Pressure Transducer
Accuracy*: ±1%FS
Maximum Pressure: 40 psig
Supply Voltage:12-40 VDC
12-35 VAC (VDC output units only)
Supply Current: VDC Units - 10 mA max.
mA Units - 20 mA max.
Enclosure:18 Ga C. R. Steel NEMA 4(IP-65)
Finish: Baked on enamel-PMS2GR88B
Conformance: EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range: 0ºF-180ºF (-18ºC-82ºC)
T. C. Error: ±0.025%/ºF (.03%/ºC)
Media Compatibility: Dry air or inert gases
Port Connection: 5/32” I.D., 1/4” OD Hose Barb
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: 1.0 lbs. (.45 kg)
*Includes non-linearity, hysteresis and non-repeatability
FOR ADDITIONAL INFORMATION
SEE PR-243 DATA SHEET
SPECIFICATIONS
RANGE OUTPUT
Requirements
• 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
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.
NEMA Type 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.
Mounting ThePR-243mustbemountedonaverticalsurfacewith
the 1/4” brass hose barb pointing left or right. 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 cover and make pneumatic connections.
Wiring Use maximum 12 AWG wire for wiring terminals. Use
flexible 1/4” O.D., 5/32 I.D.tubing for pressure connections.
Refer to Figures 1, 2, 3, & 4 for wiring information and
Figures 5 & 6 for jumper designations.
Wiring PR-243 Units with mA Output
PR-243 pressure transducers are 4-20 mA output units
powered with a 12-40 VDC supply.
The following describes the proper wiring of these
pressure transducers with mA output:
1.Remove the blue 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.
!
R1 (psig)0TO20/0TO10/0TO5 mA (4-20 mA 2-wire)
R2 (psig)0TO30/0TO15/0TO7.5 VDC (0-5 VDC or 0-10 VDC
Field Selectable)
R3 (psig) 3 TO 15
R4 (kPa) 0 TO 140 / 0 TO 70 / 0 TO 35
R5 (kPa) 0 TO 200 / 0 TO 100 / 0 TO 50
R6 (kPa) 20 TO 100
INSTALLATION
Inspection 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.

Model PR-24
3
Technical Information
TI.243-0
2
Pneumatic Pressure Transducer
Caution: This product contains a half-wave rectifier power supply and
must not be powered off transformers used to power other devices
utilizing non-isolated full-wave rectifier power supplies.
Legend
S=SpanAdjust
Z=ZeroAdjust
+ = Supply Voltage
- = Output
Note: 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-243 transducer.
Wiring PR-243 Units with VDC Output
PR-243 pressure transducers with VDC output are field selectable 0-5
VDC or 0-10 VDC output and can be powered with either 12-40 VDC
or 12-35 VAC. The following describes the proper wiring of these pressure
transducers with VDC output:
1. Remove the blue terminal block by carefully pulling it off the circuit
board.
2. Locate the (+), (-), and (0) 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 (0) 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 (0) and (-) terminals.
TYPICAL APPLICATIONS (wiring diagrams)
Figure-1 and Figure-2
Illustrate typical wiring diagrams for the PR-243, 4-
20 mA, two-wire output pressure transducers.
+
–
+
–
+
–
mA Output
Transducer Only
12-40 VDC
Power Supply
Controller/
Meter/
Recorder
Shield/
Ground
Input Signa
l
Common
Figure-1 Wiring for mA Output
Pressure Transducers with
External DC Power Supply
+
–
mA Output
Transducer Only
+
–
Controller/
Meter/
Recorder
Shield/
Ground
Input Signal
Common
Figure-2 Wiring for mA Output Pressure
Transducers where Controller or Meter
has Internal DC Power Supply
Figure-3 and Figure-4
Illustrate typical wiring diagrams for the PR-243, 0-5/0-10 VDC
output pressure transducers.
+
–
Controller/
Meter/
Recorder
Shield/
Ground
Input
Signal
Commo
n
12-35 VAC
Transforme
r
Hot
Neutral
+
–
VDC Output
Transducer Only
Common
+
–
Supply
Signal 0
Figure-3 Wiring for VDC Output Pressure
Transducers when applied with
External AC Supply.
PR-243 Pressure Transducers with mA Output.
Caution: When multiple PR-243 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 transformer.
Page 2 of 4
1/4” Brass Hose Barb
(5/32 I.D. Tubing)
+– ZS
Legend
S = Span Adjust
Z=ZeroAdjust
+ = Supply Voltage
- = Common (Neutral)
0 = Output
1/4” Brass Hose Barb
(5/32 I.D. Tubing)
PR-243 Pressure Transducers with VDC Output.
+–0 ZS

+
–
Controller/
Meter/
Recorder
Shield/
Ground
Input Signal
Common
12-40 VDC
Power Supply
+
–
VDC Output
Transducer Only
Common
+
–
Supply
Signal 0
Figure-4 Wiring for VDC Output Pressure
Transducers when applied with
External DC Power Supply.
ADJUSTMENTS
Jumper Jumper selections vary according to the pressure
Selection transducer (mA or VDC).
The following describes the possible selections for
each model.
mA Selection Jumper Selections for PR-243 Pressure Transducers
with mA Outputs
The possible range configurations and jumper
selections for pressure transducers with mA outputs
are shown in Table-1 and Figure-5, respectively.
Caution:
• All jumpers must be in desired position before
powering unit. Never power unit without jumpers in
place.
• Disconnect power before any repositioning of
jumpers.
VDC Selection Jumper Selections for PR-243 Pressure Transducers
with VDC Outputs
The possible range configurations and jumper
selections for pressure transducers with VDC outputs
are shown in Table-2 and Figure-6, respectively.
Caution:
• All jumpers must be in desired position before
powering unit. Never power unit without jumpers in
place.
• Disconnect power before any repositioning of
jumpers.
Input Signal
Common
Figure-5 Jumper Selections for Pressure Transducers with mA Outputs.
0to5VDC 0to10VDC
+–0
ZS
+–0
ZS
RANGE
CONFIGURATIONS
OUTPUT
CONFIGURATIONS
Range A Range B
+–0
ZS
+–0
ZS
Range C
+–0
ZS
Figure-6 Jumper Selections for Pressure Transducers with
VDC Outputs.
Table-1 Range Configurations for Pressure Transducers
with mA Outputs
!
VDC Outputs
ZS
+–
Range: A Range: B
Range: C
mA Outputs
A
Range BC
Range Configurations (psig)
R1
R2
R3
0to20
0to30
3to15
0to10
0to15
---
0to5
0to7.5
---
A
Range BC
Range Configurations (kPa)
R4
R5
R6
0to140
0to200
20 to 100
0to70
0to100
---
0to35
0to50
---
ZS+–
ZS
+–
Model PR-24
3
Technical Information
TI.243-0
2
Pneumatic Pressure Transducer
Page 3 of 4
Table-2 Range Configurations for Pressure Transducers with
VDC Outputs
A
Range
BC
Range Configurations (psig)
R1
R2
R3
0to20
0to30
---
0to10
0to15
3to15
0to5
0to7.5
Output Configurations
0to5VDC 0to10
VDC
A
Range BC
Range Configurations (kPa)
R4
R5
R6
Output Configurations
0to5VDC 0to10
VDC
0to140
0to200
---
0to70
0to100
20 to 100
0to35
0to50
---
!

CHECKOUT 1. Verify that the unit is mounted in the correct
position.
2. Verify appropriate input signal and supply voltage.
Caution: Never connect 120 VAC to these
transducers. Never connect AC voltage to a unit
intended for DC supply.
3. Verify appropriate range configuration.
Transducer This is a rough functional check only.
Operation 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.
Note: The PR-243 is a highly accurate device. For
applications requiring a high degree of accuracy,
the use of laboratory quality meters and gauges
are recommended.
Figure-7 PR-243 Pressure Transducer Dimensions shown in inches and
millimeters (mm).
TI.243-02
CALIBRATION All units are factory calibrated to meet or exceed
published specifications. If field adjustment is
necessary, follow the instructions below.
Calibration of PR-243 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.
5. Repeat steps 3 and 4 until desired calibration is
achieved.
Calibration of PR-243 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.
5. Repeat steps 3 and 4 until desired calibration is
achieved.
For Technical / Application Assistance contact your nearest office.
Baird House, Units 6 & 7
Dudley Innovation Centre
Pensnett Estate • Kingswinford
West Midlands • DY6 8XZ
United Kingdom
01384-271113 • Fax 01384-
271114
[e-mail]
4 Armiger Court, Unit 2
Holden Hill • S. A. 5088
Australia
08-8359-4333 • Fax 08-8395-
4433
[e-mail]
5611 North Bridge Road
03-06 • Eng Cheong Tower
Singapore • 198782
65-3927273 • Fax [phone]
[e-mail]
155 McIntosh Drive, Unit 5
Markham • Ontario • L3R 0N6
Canada
905-474-9215 • Fax 905-474-
0876
[e-mail]
EUROPE AUSTRALIA
ASIA CANADA
MAMAC Systems Inc. reserves the right to change any specifications
without notice to improve performance, reliability, or function of our
products.
7400 Flying Cloud Drive • Minneapolis, MN 55344-3720 •USA
800-843-5116 • 612-835-1626 • Fax [phone]
[e-mail] • www.mamacsys.com
6.00”
(152.40)
5.00”
(127.00)
2.25”
(57.15)
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.
1/4” Brass Hose Bar
(5/32 I.D. Tubing)
DIMENSIONAL DATA
Model PR-24
3
Technical Information
TI.243-0
2
Pneumatic Pressure Transducer
Page 4 of 4
3.25”
(82.55)
3.00”
(76.21)
3.00”
(76.21)
2.658”
(67.51)
4.0
0
(101.
6