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PCB Piezotronics 122A21 Installation And Operating Manual

Helium bleed, icp dynamic pressure sensor
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Model 122A21
Helium Bleed, ICP® Dynamic Pressure Sensor
Installation and Operating Manual
For assistance with the operation of this product , contact the Pressure
Division of PCB Piezotronics, Inc.
Division toll-free 888-684-0015
SM
24-hour SensorLine
716-684-0001
Fax 716-686-9129
E-mail pressure@pcb.com

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Summary of Contents for PCB Piezotronics 122A21

  • Page 1 Model 122A21 Helium Bleed, ICP® Dynamic Pressure Sensor Installation and Operating Manual For assistance with the operation of this product , contact the Pressure Division of PCB Piezotronics, Inc. Division toll-free 888-684-0015 24-hour SensorLine 716-684-0001 Fax 716-686-9129 E-mail pressure@pcb.com...
  • Page 2 The information contained in this document supersedes all similar information that may be found elsewhere in this manual. Total Customer Satisfaction – PCB Piezotronics guarantees Total Customer Satisfaction. If, at any time, for any reason, you are not completely satisfied with any PCB product, PCB will repair, replace, or exchange it at no charge.
  • Page 3 Materials Authorization Number. This RMA number should be clearly marked on the outside of all package(s) and on the packing list(s) accompanying the shipment. A detailed account of the nature of the problem(s) being experienced with the equipment should also be included inside the package(s) containing materials.
  • Page 4 Do not attempt removal of this probe. Contact the factory should any questions or problems arise concerning the sensor probe. The Models 122A21, A22, and A23 Sensors use low output-impedance probes (ICP the insulation resistance cautions described for Model 122A.

  • Page 5: Installation

    MODELS 122A, 122A21, 122A22, and 122A24 HELIUM BLEED PRESSURE SENSOR INSTALLATION Prepare mounting port accordance instructions on installation drawing 122-1010-90. Inspect the mounting port for burrs and tool marks at the conical seal surface. NOTE: A 75 end-cutting reamer, Model 040A02, is available from PCB.
  • Page 6 PCB. The Models 122A21, 122A22 and 122A24 are identical except for sensitivity. The Model 122A21 has a sensitivity of 20mV/psi which gives a full-scale range (for +5 V out) of 250 psi. The Model 122A22 has a sensitivity of 1.0 mV/psi and a full-scale range of 5000 psi.

  • Page 7: Ground Isolation

    MODELS 122A, 122A21, 122A22, and 122A24 HELIUM BLEED PRESSURE SENSOR GROUND ISOLATION All sensor probes in this series are mounted in an "OFF GROUND" configuration. That is, the probe body is electrically insulated from the sensor outer body to avoid ground loops.
  • Page 10 MODELS 122A, 122A21, 122A22, and 122A24 Sensor Model ________________________ Initial Calibration: Input (PSI) System Output (V) Burst Test to 5000 PSI - Failed Final Calibration: Input (PSI) System Output (V) Helium Flow Test: Input Pressure _________ PSIG Flow Rate _________ SCFH...