PCB 122A

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PCB 122A

PERFORMANCE ENGLISH SI
Sensitivity(± 20 %) 1.1 pC/psi
0.159 pC/kPa
Measurement Range 3 kpsi
20,685 kPa [1][2][3]
Maximum Pressure 5 kpsi
34,475 kPa [1][2][3]
Resolution 20 mpsi
0.138 kPa [4]
Resonant Frequency ≥ 25 kHz
≥ 25 kHz [5]
Rise Time(Reflected) ≤ 20 µ sec
≤ 20 µ sec [5]
Non-Linearity ≤ 1 % FS
≤ 1 % FS [6]
ENVIRONMENTAL    
Acceleration Sensitivity ≤ 0.002 psi/g
≤ 1.41E-3 kPa/(m/s²)
Temperature Range(Operating) -450 to +500 °F
-268 to +260 °C
Temperature Coefficient of Sensitivity ≤ 0.01 %/°F
≤ 0.018 %/°C
Maximum Flash Temperature 4000 °F
2204 °C
Maximum Shock 10,000 g pk
98,070 m/s² pk
ELECTRICAL    
Output Polarity(Positive Pressure) Negative
Negative
Capacitance 18 pF
18 pF
Electrical Isolation ≥ 108 ohm
≥ 108 ohm
Insulation Resistance(at room temp) ≥ 1012 ohm
≥ 1012 ohm
PHYSICAL    
Sensing Element Quartz
Quartz
Sensing Geometry Compression
Compression
Housing Material 17-4 Stainless Steel
17-4 Stainless Steel
Diaphragm Invar
Invar
Sealing Epoxy
Epoxy
Electrical Connector 10-32 Coaxial Jack
10-32 Coaxial Jack
Helium Flow Rate(at 1,500 psi) 40 scf/hr
1.13 m³/hr
Weight 4.2 oz
120 gm
SUPPLIED ACCESSORIES:
Model 070A08 Cable adaptor (micro 10-32 jack to BNC jack) (1)

All specifications are at room temperature unless otherwise specified.
NOTES:
[1] This pressure applies to sensor probe and adaptor assembly.
[2] Maximum working pressure may be limited by helium source.
[3] Source pressure should be at least twice the peak pressure but not more than 10 times the lowest pressure
[4] Resolution dependent on range setting and cable length used in charge system.
[5] With helium flow.
[6] Zero-based, least-squares, straight line method.

Keywords:
Rocket motor pressure probe, 3000 psi, 1 pC/psi, Helium bleed, conical end seal, 7/16 thd

Measurement Range: 3000 psi (20685 kPa)
Sensitivity: (±20%) 1.1 pC/psi (0.159 pC/kPa)
Temperature Range: (Operating) -450 to +500 °F (-268 to +260 °C)
Electrical Connector: 10-32 Coaxial Jack
Weight: 4.2 oz (120 gm)
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