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Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
External DC Supply.
External DC Supply.
External DC Supply.
External DC Supply.
Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
VDC Output Transducer Only
VDC Output Transducer Only
VDC Output Transducer Only
VDC Output Transducer Only
Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
External DC Supply.
+
+
+
Supply
Supply
Supply
External DC Supply.
+
Supply
Common
Common
Common
VDC Output Transducer Only
Common
VDC Output Transducer Only
O
O
Signal
Signal
Signal
O
O
+
Signal
Supply
+
Supply
Common
Common
O
Signal
O
Signal
Caution: If you are using grounded AC, the hot wire must be on the
Caution: If you are using grounded AC, the hot wire must be on the
Caution: If you are using grounded AC, the hot wire must be on the
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,
[+] terminal. Also, if you are using a controller without built-in isolation,
[+] terminal. Also, if you are using a controller without built-in isolation,
[+] terminal. Also, if you are using a controller without built-in isolation,
Caution: If you are using grounded AC, the hot wire must be on the
use an isolation transformer to supply the transducer.
use an isolation transformer to supply the transducer.
use an isolation transformer to supply the transducer.
use an isolation transformer to supply the transducer.
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,
[+] terminal. Also, if you are using a controller without built-in isolation,
Caution: This product contains a half-wave rectifier power supply and
use an isolation transformer to supply the transducer.
Caution: This product contains a half-wave rectifier power supply and
Caution: This product contains a half-wave rectifier power supply and
Caution: This product contains a half-wave rectifier power supply and
use an isolation transformer to supply the transducer.
must not be powered off transformers used to power other devices
must not be powered off transformers used to power other devices
must not be powered off transformers used to power other devices
must not be powered off transformers used to power other devices
Caution: This product contains a half-wave rectifier power supply and
utilizing non-isolated full-wave rectifier power supplies.
utilizing non-isolated full-wave rectifier power supplies.
utilizing non-isolated full-wave rectifier power supplies.
Caution: This product contains a half-wave rectifier power supply and
utilizing non-isolated full-wave rectifier power supplies.
must not be powered off transformers used to power other devices
must not be powered off transformers used to power other devices
utilizing non-isolated full-wave rectifier power supplies.
Caution: When multiple units are powered from the same transformer,
Caution: When multiple units are powered from the same transformer,
Caution: When multiple units are powered from the same transformer,
Caution: When multiple units are powered from the same transformer,
utilizing non-isolated full-wave rectifier power supplies.
damage will result unless all 24G power leads are connected to the
damage will result unless all 24G power leads are connected to the
damage will result unless all 24G power leads are connected to the
damage will result unless all 24G power leads are connected to the
Caution: When multiple units are powered from the same transformer,
same power lead on all devices. It is mandatory that correct phasing be
Caution: When multiple units are powered from the same transformer,
same power lead on all devices. It is mandatory that correct phasing be
same power lead on all devices. It is mandatory that correct phasing be
same power lead on all devices. It is mandatory that correct phasing be
damage will result unless all 24G power leads are connected to the
maintained when powering more than one device from a single transducer.
damage will result unless all 24G power leads are connected to the
maintained when powering more than one device from a single transducer.
maintained when powering more than one device from a single transducer.
maintained when powering more than one device from a single transducer.
same power lead on all devices. It is mandatory that correct phasing be
same power lead on all devices. It is mandatory that correct phasing be
maintained when powering more than one device from a single transducer.
maintained when powering more than one device from a single transducer.
Range Configuration:
Range Configuration:
Range Configuration:
Range Configuration:
Range Configuration:
Range Configuration:
Range 05
0 – 5.0 "wc / 1250 pa (default)
Range 05
Range 05
0 – 5.0 "wc / 1250 pa (default)
0 – 5.0 "wc / 1250 pa (default)
Range 05
0 – 5.0 "wc / 1250 pa (default)
Range 05
0 – 5.0 "wc / 1250 pa (default)
Range 05
0 – 5.0 "wc / 1250 pa (default)
0 – 2.5 "wc / 625 pa
0 – 2.5 "wc / 625 pa
0 – 2.5 "wc / 625 pa
0 – 2.5 "wc / 625 pa
0 – 2.5 "wc / 625 pa
0 – 2.5 "wc / 625 pa
0 – 1.25 "wc / 312.5 pa
0 – 1.25 "wc / 312.5 pa
0 – 1.25 "wc / 312.5 pa
0 – 1.25 "wc / 312.5 pa
0 – 1.25 "wc / 312.5 pa
0 – 1.25 "wc / 312.5 pa
Range 15
0 – 15.0 "wc / 3750 pa (default)
Range 15
Range 15
0 – 15.0 "wc / 3750 pa (default)
0 – 15.0 "wc / 3750 pa (default)
Range 15
0 – 15.0 "wc / 3750 pa (default)
Range 15
0 – 15.0 "wc / 3750 pa (default)
Range 15
0 – 15.0 "wc / 3750 pa (default)
0 – 7.5 "wc / 1875 pa
0 – 7.5 "wc / 1875 pa
0 – 7.5 "wc / 1875 pa
0 – 7.5 "wc / 1875 pa
0 – 7.5 "wc / 1875 pa
0 – 7.5 "wc / 1875 pa
0 – 3.75 "wc / 937.5 pa
0 – 3.75 "wc / 937.5 pa
0 – 3.75 "wc / 937.5 pa
0 – 3.75 "wc / 937.5 pa
0 – 3.75 "wc / 937.5 pa
0 – 3.75 "wc / 937.5 pa
Factory Sealed
Factory Sealed
Factory Sealed
Factory Sealed
Factory Sealed
Factory Sealed
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
Output Configuration:
Output Configuration:
Output Configuration:
Output Configuration:
Output Configuration:
Output Configuration:
0 – 10 VDC (default)
0 – 10 VDC (default)
0 – 10 VDC (default)
0 – 10 VDC (default)
0 – 10 VDC (default)
0 – 10 VDC (default)
0 – 5 VDC
0 – 5 VDC
0 – 5 VDC
0 – 5 VDC
0 – 5 VDC
0 – 5 VDC
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
CHECKOUT
1. Verify that the unit is mounted in the correct position.
CHECKOUT
1. Verify that the unit is mounted in the correct position.
CHECKOUT
1. Verify that the unit is mounted in the correct position.
2. Verify appropriate input signal and supply voltage.
CHECKOUT
CHECKOUT
1. Verify that the unit is mounted in the correct position.
1. Verify that the unit is mounted in the correct position.
2. Verify appropriate input signal and supply voltage.
CHECKOUT
1. Verify that the unit is mounted in the correct position.
2. Verify appropriate input signal and supply voltage.
2. Verify appropriate input signal and supply voltage.
2. Verify appropriate input signal and supply voltage.
2. Verify appropriate input signal and supply voltage.
Caution: Never connect 120 VAC to these transducers. Never
Caution: Never connect 120 VAC to these transducers. Never
Caution: Never connect 120 VAC to these transducers. Never
connect AC voltage to a unit intended for DC supply.
connect AC voltage to a unit intended for DC supply.
Caution: Never connect 120 VAC to these transducers. Never
Caution: Never connect 120 VAC to these transducers. Never
Caution: Never connect 120 VAC to these transducers. Never
connect AC voltage to a unit intended for DC supply.
connect AC voltage to a unit intended for DC supply.
connect AC voltage to a unit intended for DC supply.
connect AC voltage to a unit intended for DC supply.
3. Verify appropriate configuration range.
3. Verify appropriate configuration range.
3. Verify appropriate configuration range.
3. Verify appropriate configuration range.
3. Verify appropriate configuration range.
3. Verify appropriate configuration range.
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 37 months from date of purchase. OMEGA's WARRANTY
adds an additional one (1) month grace period to the normal three (3) year product warranty to cover handling and shipping time. This ensures that OMEGA's customers
receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA's Customer Service Department will issue an Authorized Return (AR) number immediately
upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA's WARRANTY does
not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper
repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a
result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA's control.
Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance
with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of
defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of
purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable
for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a "Basic Component" under 10 CFR 21 (NRC), used in or with any nuclear
installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used
on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST
OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA'S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR
number should then be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
FOR WARRANTY RETURNS, please have the
following information available BEFORE contacting OMEGA:
1.
Purchase Order number under which the product was PURCHASED,
2.
Model and serial number of the product under warranty, and
3.
Repair instructions and/or specific problems
relative to the product.
OMEGA's policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2016 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic
medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
12–40 VDC Power Supply
12–40 VDC Power Supply
12–40 VDC Power Supply
12–40 VDC Power Supply
+
+
+
Input Signal
Input Signal
Input Signal
+
Input Signal
Common
Common
Common
12–40 VDC Power Supply
Common
12–40 VDC Power Supply
+
Input Signal
Controller / Meter / Recorder
Controller / Meter / Recorder
Controller / Meter / Recorder
+
Controller / Meter / Recorder
Input Signal
Common
+
+
+
Input Signal
Figure 4 – Wiring for VDC Output Duct Pressure Transducers when applied with
+
Input Signal
Input Signal
Common
Input Signal
External DC Supply.
Common
Controller / Meter / Recorder
Common
Common
Common
Controller / Meter / Recorder
Shield/Ground
+
Shield/Ground
Shield/Ground
VDC Output Transducer Only
Input Signal
Shield/Ground
+
Input Signal
+
Supply
Common
Common
Common
Shield/Ground
O
Signal
Shield/Ground
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 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.
Caution: When multiple 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.
Switch 1 (S1)
Switch 1 (S1)
Switch 1 (S1)
Switch 1 (S1)
Switch 1 (S1)
Range Configuration:
O N
Switch 1 (S1)
O N
O N
O N
O N
Range 05
0 – 5.0 "wc / 1250 pa (default)
O N
1
1
1
2
2
1
2
O N
1
2
O N
O N
O N
1
2
0 – 2.5 "wc / 625 pa
O N
O N
1
1
1
2
2
1
2
O N
1
2
0 – 1.25 "wc / 312.5 pa
O N
O N
1
2
O N
O N
O N
1
Range 15
0 – 15.0 "wc / 3750 pa (default)
1
1
2
2
1
2
O N
1
2
O N
O N
1
2
O N
O N
O N
0 – 7.5 "wc / 1875 pa
1
1
1
2
2
1
2
O N
1
2
1
2
O N
O N
O N
O N
0 – 3.75 "wc / 937.5 pa
O N
1
1
1
2
2
1
2
1
2
O N
1
2
Factory Sealed
O N
O N
O N
O N
O N
1
Figure 5 – Range Configurations for Pressure Transducers with mA Outputs
1
1
1
2
2
2
1
2
1
2
Switch 2 (S2)
Output Configuration:
Switch 2 (S2)
Switch 2 (S2)
Switch 2 (S2)
Switch 2 (S2)
Switch 2 (S2)
0 – 10 VDC (default)
0 – 5 VDC
Switch 3 (S3)
Switch 3 (S3)
Switch 3 (S3)
Switch 3 (S3)
Switch 3 (S3)
Switch 3 (S3)
O N
Figure 6 – Range Configurations for Pressure Transducers with VDC Outputs
O N
O N
O N
O N
O N
1
CHECKOUT
1. Verify that the unit is mounted in the correct position.
1
2
2. Verify appropriate input signal and supply voltage.
O N
1
1
2
1
2
2
1
2
O N
O N
O N
O N
O N
Caution: Never connect 120 VAC to these transducers. Never
1
connect AC voltage to a unit intended for DC supply.
1
2
1
2
1
1
2
2
1
2
3. Verify appropriate configuration range.
WARRANTY/DISCLAIMER
RETURN REQUESTS/INQUIRIES
Transducer
Transducer
This is a rough functional check only.
This is a rough functional check only.
Transducer
Transducer
This is a rough functional check only.
Operation
Operation
Operation
1. Adjust the pressure to obtain maximum output signal for appropriate
1. Adjust the pressure to obtain maximum output signal for appropriate
Operation
1. Adjust the pressure to obtain maximum output signal for appropriate
range.
range.
range.
Transducer
This is a rough functional check only.
2. Output should be 20 mA or 5 or 10 VDC.
2. Output should be 20 mA or 5 or 10 VDC.
Transducer
This is a rough functional check only.
2. Output should be 20 mA or 5 or 10 VDC.
Operation
1. Adjust the pressure to obtain maximum output signal for appropriate
Operation
3. Adjust the pressure to obtain minimum output signal.
3. Adjust the pressure to obtain minimum output signal.
1. Adjust the pressure to obtain maximum output signal for appropriate
3. Adjust the pressure to obtain minimum output signal.
range.
range.
4. Output should be 4 mA or 0 VDC.
4. Output should be 4 mA or 0 VDC.
2. Output should be 20 mA or 5 or 10 VDC.
4. Output should be 4 mA or 0 VDC.
2. Output should be 20 mA or 5 or 10 VDC.
3. Adjust the pressure to obtain minimum output signal.
3. Adjust the pressure to obtain minimum output signal.
NOTE: The PX276/PX279 is a highly accurate device. For
NOTE: The PX276/PX279 is a highly accurate device. For
4. Output should be 4 mA or 0 VDC.
NOTE: The PX276/PX279 is a highly accurate device. For
Transducer
4. Output should be 4 mA or 0 VDC.
applications requiring a high degree of accuracy, the use of
applications requiring a high degree of accuracy, the use of
applications requiring a high degree of accuracy, the use of
Operation
laboratory quality meters and gauges are recommended.
laboratory quality meters and gauges are recommended.
laboratory quality meters and gauges are recommended.
NOTE: The PX276/PX279 is a highly accurate device. For
12–40 VDC Power Supply
NOTE: The PX276/PX279 is a highly accurate device. For
applications requiring a high degree of accuracy, the use of
+
Input Signal
applications requiring a high degree of accuracy, the use of
laboratory quality meters and gauges are recommended.
Common
laboratory quality meters and gauges are recommended.
CALIBRATION
All units are factory calibrated to meet or exceed published specifications.
All units are factory calibrated to meet or exceed published specifications.
CALIBRATION
CALIBRATION
All units are factory calibrated to meet or exceed published specifications.
CALIBRATION
Controller / Meter / Recorder
If field adjustment is necessary, follow the instructions below.
If field adjustment is necessary, follow the instructions below.
If field adjustment is necessary, follow the instructions below.
+
Input Signal
All units are factory calibrated to meet or exceed published specifications.
CALIBRATION
Common
All units are factory calibrated to meet or exceed published specifications.
CALIBRATION
If field adjustment is necessary, follow the instructions below.
Calibration of PX276 mA Units
Calibration of PX276 mA Units
Calibration of PX276 mA Units
Shield/Ground
If field adjustment is necessary, follow the instructions below.
Calibration of PX276 mA Units
1. Connect terminals [+] and [-] to the appropriate power source.
1. Connect terminals [+] and [-] to the appropriate power source.
1. Connect terminals [+] and [-] to the appropriate power source.
CALIBRATION
Calibration of PX276 mA Units
2. Connect the DVM in series on the [-] terminal.
2. Connect the DVM in series on the [-] terminal.
2. Connect the DVM in series on the [-] terminal.
1. Connect terminals [+] and [-] to the appropriate power source.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
3. Apply low pressure to the unit and carefully adjust the zero trimmer
1. Connect terminals [+] and [-] to the appropriate power source.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
2. Connect the DVM in series on the [-] terminal.
[Zu] to obtain desired low output.
[Zu] to obtain desired low output.
2. Connect the DVM in series on the [-] terminal.
[Zu] to obtain desired low output.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
3. Apply low pressure to the unit and carefully adjust the zero trimmer
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
[Zu] to obtain desired low output.
the desired high output pressure.
the desired high output pressure.
[Zu] to obtain desired low output.
the desired high output pressure.
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
5. Repeat steps 3 and 4 until desired calibration is achieved
5. Repeat steps 3 and 4 until desired calibration is achieved
the desired high output pressure.
5. Repeat steps 3 and 4 until desired calibration is achieved
the desired high output pressure.
5. Repeat steps 3 and 4 until desired calibration is achieved
5. Repeat steps 3 and 4 until desired calibration is achieved
Calibration of PX279 VDC Units
Calibration of PX279 VDC Units
Calibration of PX279 VDC Units
Calibration of PX279 VDC Units
Calibration of PX279 VDC Units
1. Connect terminals [+] and [-] to the appropriate power source.
1. Connect terminals [+] and [-] to the appropriate power source.
1. Connect terminals [+] and [-] to the appropriate power source.
The [-] terminal is also the negative output terminal.
The [-] terminal is also the negative output terminal.
Switch 1 (S1)
1. Connect terminals [+] and [-] to the appropriate power source.
The [-] terminal is also the negative output terminal.
1. Connect terminals [+] and [-] to the appropriate power source.
2. Connect the DVM on DC volts across [0] and [-] terminal.
The [-] terminal is also the negative output terminal.
2. Connect the DVM on DC volts across [0] and [-] terminal.
2. Connect the DVM on DC volts across [0] and [-] terminal.
O N
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
3. Apply low pressure to the unit and carefully adjust the zero trimmer
3. Apply low pressure to the unit and carefully adjust the zero trimmer
2
2. Connect the DVM on DC volts across [0] and [-] terminal.
[Zu] to obtain desired low output.
[Zu] to obtain desired low output.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
1
2
[Zu] to obtain desired low output.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
[Zu] to obtain desired low output.
O N
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
[Zu] to obtain desired low output.
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
the desired high output pressure.
the desired high output pressure.
the desired high output pressure.
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
2
1
2
the desired high output pressure.
5. Repeat steps 3 and 4 until desired calibration is achieved.
5. Repeat steps 3 and 4 until desired calibration is achieved.
5. Repeat steps 3 and 4 until desired calibration is achieved.
the desired high output pressure.
O N
5. Repeat steps 3 and 4 until desired calibration is achieved.
5. Repeat steps 3 and 4 until desired calibration is achieved.
MAINTENANCE
1
2
MAINTENANCE
Regular maintenance of the total system is recommended to assure
Regular maintenance of the total system is recommended to assure
MAINTENANCE
MAINTENANCE
2
Regular maintenance of the total system is recommended to assure
MAINTENANCE
O N
Regular maintenance of the total system is recommended to assure
MAINTENANCE
FIELD REPAIR
sustained optimum performance.
sustained optimum performance.
sustained optimum performance.
Regular maintenance of the total system is recommended to assure
MAINTENANCE
sustained optimum performance.
FIELD REPAIR
1
sustained optimum performance.
2
WARRANTY
FIELD REPAIR
FIELD REPAIR
None. Replace with a functional unit.
None. Replace with a functional unit.
None. Replace with a functional unit.
FIELD REPAIR
O N
FIELD REPAIR
None. Replace with a functional unit.
FIELD REPAIR
None. Replace with a functional unit.
2
WARRANTY
See Data Sheet for additional information.
See Data Sheet for additional information.
WARRANTY
WARRANTY
See Data Sheet for additional information.
1
WARRANTY
2
See Data Sheet for additional information.
WARRANTY
See Data Sheet for additional information.
WARRANTY
O N
2
1
2
Switch 2 (S2)
2
Switch 3 (S3)
8.00"
O N
8.00"
(203)
8.00"
8.00"
8.00"
8.00"
(203)
(203)
(203)
(203)
(203)
1
2
O N
1
2
2.25"
2.25"
2
(57.2)
2.25"
2.25"
2.25"
(57.2)
2.25"
(57.2)
(57.2)
(57.2)
(57.2)
3.25"
2
(82.6)
3.25"
3.25"
U.S.A.
Omega Engineering, Inc.
3.25"
(82.6)
(82.6)
Headquarters: Toll-Free: 1-800-826-6342 (USA & Canada only)
3.25"
3.25"
(82.6)
3.25"
(82.6)
(82.6)
Customer Service: 1-800-622-2378 (USA & Canada only)
(82.6)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660 • Fax: (203) 359-7700 • e-mail: info@omega.com
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
FOR NON-WARRANTY REPAIRS, consult OMEGA for current repair charges.
Have the following information available BEFORE contacting OMEGA:
1.
Purchase Order number to cover the COST of the repair,
2.
Model and serial number of the product, and
3.
Repair instructions and/or specific problems
relative to the product.
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.
NOTE: The PX276/PX279 is a highly accurate device. For
This is a rough functional check only.
applications requiring a high degree of accuracy, the use of
1. Adjust the pressure to obtain maximum output signal for appropriate
laboratory quality meters and gauges are recommended.
range.
2. Output should be 20 mA or 5 or 10 VDC.
3. Adjust the pressure to obtain minimum output signal.
All units are factory calibrated to meet or exceed published specifications.
4. Output should be 4 mA or 0 VDC.
If field adjustment is necessary, follow the instructions below.
NOTE: The PX276/PX279 is a highly accurate device. For
applications requiring a high degree of accuracy, the use of
Calibration of PX276 mA Units
laboratory quality meters and gauges are recommended.
1. Connect terminals [+] and [-] to the appropriate power source.
All units are factory calibrated to meet or exceed published specifications.
2. Connect the DVM in series on the [-] terminal.
If field adjustment is necessary, follow the instructions below.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
Calibration of PX276 mA Units
[Zu] to obtain desired low output.
1. Connect terminals [+] and [-] to the appropriate power source.
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
2. Connect the DVM in series on the [-] terminal.
the desired high output pressure.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
5. Repeat steps 3 and 4 until desired calibration is achieved
[Zu] to obtain desired low output.
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
the desired high output pressure.
Calibration of PX279 VDC Units
5. Repeat steps 3 and 4 until desired calibration is achieved
1. Connect terminals [+] and [-] to the appropriate power source.
Calibration of PX279 VDC Units
The [-] terminal is also the negative output terminal.
1. Connect terminals [+] and [-] to the appropriate power source.
2. Connect the DVM on DC volts across [0] and [-] terminal.
The [-] terminal is also the negative output terminal.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
2. Connect the DVM on DC volts across [0] and [-] terminal.
[Zu] to obtain desired low output.
3. Apply low pressure to the unit and carefully adjust the zero trimmer
[Zu] to obtain desired low output.
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
4. Apply high pressure to the unit and adjust span trimmer [S] to obtain
the desired high output pressure.
the desired high output pressure.
5. Repeat steps 3 and 4 until desired calibration is achieved.
5. Repeat steps 3 and 4 until desired calibration is achieved.
Regular maintenance of the total system is recommended to assure
Regular maintenance of the total system is recommended to assure
sustained optimum performance.
sustained optimum performance.
None. Replace with a functional unit.
None. Replace with a functional unit.
See Data Sheet for additional information.
See Data Sheet for additional information.
8.00"
(203)
2.25"
(57.2)
5.00" (127)
5.00" (127)
5.00" (127)
5.00" (127)
5.00" (127)
5.00" (127)
5.00" (127)
3.00" (76.2)
3.00" (76.2)
Servicing North America:
2.66"
2.66"
(67.5)
(67.5)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
3.00" (76.2)
.
.
.
.
.
.
.
4.00"
2.66"
(102)
(67.5)
4.00"
4.00"
2.66"
4.00"
(102)
(102)
(67.5)
4.00"
4.00"
(102)
4.00"
2.66"
2.66"
2.66"
(102)
(102)
(102)
(67.5)
(67.5)
(67.5)
M3505/0816
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