Products

CHARGE OUTPUT PRESSURE SENSOR

Model 176M03

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Differential charge output pressure sensor with UHT-12™element, 17.0 pC/psi, +986 F, ATEX-CSA approved

When using Model EX682A40 or 421A30 differential charge amplifier, also use 045M21B cable.

Replaces Legacy Model Endevco 522M37A-120

Measurement Range: 20 psi (1.4 bar)
Sensing Element: UHT-12™
Temperature Range: -94 to 986 °F (-70 to 530 °C)
Electrical Connector: 7/16-27 2-Pin
Weight: 4.9 oz (140 gm)

Specification Notes

[1] Zero-based, least-squares, straight line method.
[2] Low frequency response is determined by external signal conditioning electronics.
[3] Upper frequency response is calculated from Resonant Frequency.
[4] Typical.
[5] Maximum.
[4] Typical.
[6] See PCB Declaration of Conformance PS058 for details.

	English:	SI:
Performance
Sensitivity (±20 %)	17 pC/psi	247 pC/bar
Sensitivity (±20 %)	17 pC/psi	247 pC/bar
Measurement Range	20 psi	1.4 bar
Maximum Pressure (Total)	400 psi	27.6 bar
Resonant Frequency	>50 kHz	>50 kHz
Transverse Resonance	≥5 kHz	≥5 kHz
Frequency Response	10 kHz	10 kHz	[2] [3]
Non-Linearity	≤1 % FS	≤1 % FS	[1]
Environmental
Acceleration Sensitivity	0.01 psi/g	.00069 bar/g	[5]
Acceleration Sensitivity	.003 psi/g	.00021 bar/g	[4]
Temperature Range (Continuous)	-94 to 986 °F	-70 to 530 °C
Temperature Range (Receptacle)	-76 to 500 °F	-60 to 260 °C
Temperature Response	See Graph	See Graph	[4]
Hazardous Area Approval	See Manual	See Manual
Radiation Exposure Limit (Integrated Gamma Flux)	1E8 rad	1E8 rad
Radiation Exposure Limit (Integrated Neutron Flux)	1E10 N/cm²	1E10 N/cm²
Electrical
Output Polarity (Differential)	Differential	Differential
Capacitance (with cable pin - pin)	165 pF	165 pF	[4]
Resistance(Pin-Pin) (Room Temp)	≥1000000000000 Ohm	≥1000000000000 Ohm
Resistance(Pin-Case) (Room Temp)	≥1000000000000 Ohm	≥1000000000000 Ohm
Resistance(Pin-Pin) (986°F/530°C)	≥50 kohm	≥50 kohm
Resistance(Pin-Case) (986°F/530°C)	≥100 kohm	≥100 kohm
Insulation Resistance	100	100
Physical
Sensing Element	UHT-12™	UHT-12™
Sensing Geometry	Compression	Compression
Housing Material	Nickel Alloy	Nickel Alloy
Sealing	Welded Hermetic	Welded Hermetic
Electrical Connector	7/16-27 2-Pin	7/16-27 2-Pin
Cable Type	Overbraided Hardline	Overbraided Hardline
Weight (with clamp nut & cable)	4.9 oz	140 gm