Pressure Transducer
PX276 and PX279
Pressure Transducer
PX276 and PX279
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
M3505/0816
Pressure Transducer
PX276 and PX279
Pressure Transducer
PX276 and PX279
Pressure Transducer
PX276 and PX279
Pressure Transducer
PX276 and PX279
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
SPECIFICATIONS
Inspection
Requirements
Mounting
INSTALLATION
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. 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.
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.
• 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
PX276 Duct Pressure Transducer with mA Output
Wiring PX276 Units with mA Output
Wiring PX279 Units with VDC Output
PX279 Duct Pressure Transducer with VDC Output
TYPICAL APPLICATIONS (wiring diagrams)
Input Signal
+
Common
+
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
12–40 VDC Power Supply
Input Signal
+
Common
+
Shield/Ground
Controller / Meter / Recorder
mA Output Transducer Only
Figure 1
and
Figure 2
illustrate typical wiring diagrams for the PX276 Series, 4–20 mA,
two-wire output duct pressure transducers.
Figure 1
–
Wiring for mA Output Duct Pressure Transducers with External DC
Power Supply
Figure 2
–
Wiring for mA Output Duct Pressure Transducers where the Controller or
Meter has an Internal DC Power Supply
Figure 3
and
Figure 4
illustrate typical wiring diagrams for the PX279, 0–5/0–10 VDC
output duct pressure transducer.
Figure 3
–
Wiring for VDC Output Duct 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
Accuracy*:
± 1% FS
Overpressure:
10 PSID
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)
6061T aluminum probe
Finish:
Baked on enamel – PMS2GR88B
Conformance:
EMC Standards EN50082-1(1992)
EN55014(1993)/EN60730-1(1992)
Compensated Temp Range:
25°F to 150°F (-4°C to 65°C)
T. C. Error:
±0.0125%/°F (.02%/°C)
Operating Temp Range:
0°F to 175°F (-18°C to 80°C)
Media Compatibility:
Clean dry air or any inert gas
Environmental:
10–90%RH Non-Condensing
Termination:
Unpluggable screw terminal block
Wire Size:
12 Ga max.
Load Impedance:
3K 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
Wiring
Use maximum 12 AWG wire for wiring terminals. Refer to
Figures 1, 2, 3,
&
4
for wiring information and
Figures
5
&
6
for switch designations.
MAMA
C
9248
S1
S2
ON
ON
Zu
Zb
S
Zu
S
S1
S2
Zu
Zb
S
+
0
S3
ON
ON
ON
MAMA
C
9248
Zu
S
PX276 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 a DVM set on DC milliamps connected in
series with the [-] terminal.
PX279 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 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.
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