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Phosphine Sensor (PH3 Sensor) - PH3/M-20

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• Nominal Range: 0 - 20 ppm
• Maximum Overload: 100 ppm
• Expected Operation Life: 2 years in air
• Output Signal: 1000 ± 300 nA/ppm
• Resolution: 0.1 ppm
• Temperature Range: -20°C to 50°C
• T90 Response Time: < 25 sec
• Relative Humidity Range: 15 % to 90 % R.H. non-condensing

Model Number: PH3/M-20
Data Sheet:

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Product Specification

Miniature Gas Sensors
Industry standard for portable gas detectors. Widely-used format for personal safety.

Features
Smallest size

Dimensions
Conforms to 4-Series
Diameter: 20 mm
Height: 16.6 mm
Pin diameter: 1.5 mm

PH3/M-20 Phosphine Sensor (PH3 Sensor) Applications
• Safety and Environmental Control
• For Portable Gas Detectors

PH3/M-20 Phosphine Sensor (PH3 Sensor) Performance Characteristics
Performance data conditions: 20°C, 50% RH and 1013 mbar

Nominal Range	0 - 20 ppm
Maximum Overload	100 ppm
Expected Operation Life	2 years in air
Output Signal	1000 ± 300 nA/ppm
Resolution	0.1 ppm
Temperature Range	-20°C to 50°C
Pressure Range	Atmospheric ± 10%
Pressure Coefficient	No data
T90 Response Time	< 25 sec
Relative Humidity Range	15 % to 90 % R.H. non-condensing
Typical Baseline Range (pure air, 20°C)	0 ppm ± 0.2 ppm
Maximum Zero Shift	N.D.
Long Term Output Drift	< 2% signal loss/month
Recommended Load Resistor	10 Ohm
Bias Voltage	Not required
Repeatability	< 2 % of signal
Output Linearity	Linear

PH3/M-20 Phosphine Sensor (PH3 Sensor) Physical Characteristics

Weight	~ 5,6 g
Position Sensitivity	None
Storage Life	Six months in container
Recommended Storage Temperature	5°C - 20°C
Warranty Period	12 months from date of dispatch

PH3/M-20 Phosphine Sensor (PH3 Sensor) Cross Sensitivity Data

Interfering Gas	Concentration	Reading
CO	100 ppm	0 ppm
H2S	34 ppm	~ 8 ppm
NO	100 ppm	0 ppm
NO2	100 ppm	~ -30 ppm
H2	100 ppm	0 ppm
Ethylene	100 ppm	0 ppm
SO2	100 ppm	25 ppm
SiH4	10 ppm	5 ppm