S4-PH3 Phosphine Sensor

High precision and long life

Fast response speed, fast return to zero

Low power consumption, high sensitivity

Wide linear range

Excellent repeatability and stability

Strong anti-interference ability

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Product Overview

S4-PH3 is a constant potential electrolytic sensor. Phosphine and oxygen undergo corresponding redox reaction on the working electrode and the counter electrode and release charge to form current. The generated current is proportional to the concentration of phosphine.The concentration of phosphine can be determined by measuring the current.

Application Field

  • Phosphine detector
  • Phosphine gas detection at industrial site
  • Animal husbandry phosphine detection
  • Intelligent municipal phosphine detection
  • Phosphine detection in the field of environmental protection

Product Characteristics

  • High precision and long life
  • Fast response speed, fast return to zero
  • Low power consumption, high sensitivity
  • Wide linear range
  • Excellent repeatability and stability
  • Strong anti-interference ability

Specification

Technical parameters

Item Parameters
model  S4-PH3
Detection principle  ELectrochemical Three Electrodes
Detection gas  PH3
Detection range  0-20PPM
Maximum load concentration  100PPM
output signal  1500±500nA/PPM
Zero drift  0~1PPM
Resolution  0.1PPM
Response time  <60s
Bias voltage  0
Load resistance  5~30Ω
Working Temperature  -30℃-50℃
Working Humidity  15%RH to 90%RH(no condensation)
Repeatability  <±2% output signalShanghai Sangbay Sensor
Long-term stability  <2% signal/month
Linearity  Linearity,regression coefficient R²=0.999
Work pressure  90 to 110 kPa
Shelf life  12 months after delivery
Service life  2 years

Sensor size chart

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