SemeaTech 4-Electrode H2S Sensor - 7E4-H2S-10

This 4-electrode sensor is designed for air quality monitoring to measure the low-concentration H2S gas with ultra-high resolutions.

  • Model Number: 7E4-H2S-10
  • Data Sheet: Date Sheet File
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  • SemeaTech  4-Electrode H2S Sensor
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Product Specification

Product Description

    This 4-electrode sensor is designed for air quality monitoring to measure the low-concentration H2S gas with ultra-high resolutions. The design optimizes the sensor sensitivity, accuracy and long-term stability and enables the sensor to detect ozone variations at parts per billion (ppb) levels.

 

Performance Characteristics

Nominal Range

0 ~ 10 ppm

Maximum Overload

30 ppm

Sensitivity (20)

1.5 ± 0.5 μA/ppm

Response Time (T90)

 90 s

Zero Signal (20)

< ±300 nA

Baseline Shift (-30~ 50)

< 100 ppb (After compensation)

Resolution

2 ppb

Linearity

Linear up to 10 ppm

Bias Voltage

0 mV

 

Environmental

Temperature Range

-30~ 50

Pressure Range

1 ± 0.1 atm

Humidity Range

15% ~ 90%RH non-condensing

 

Life Time

Long Time Output Drift

< 2% signal/month

Recommended Storage Temp

10~ 30

Expected Operating Life

2 years in clean air

Storage Life

6 months in original packaging

Warranty

24 months

 

Intrinsic Safety Data

Max. Current at 30ppm H2S

< 0.2 mA

Max. O/C Voltage

1.3 V

Max. S/C Current

< 1.0 A

 

Physical Characteristics:

Housing Material

ABS

Weight (Nominal)

8 g

Orientation

None

 

Product Dimensions:

 

All dimensions in mm

All tolerances ±0.10mm unless otherwise stated

 

Temperature Data:

 

 

Safety Note:

    The sensor is designed to be used in certain instruments for life critical applications. To ensure the sensor functions per its specifications inside the instrument, it is required to read the instrument user's guide carefully and comply with the calibration procedures by using certified target calibration gas before each use. Failure to do so may cause serious injury and fatality. Please do not open the sensor plastic enclosure because the electrolyte and other chemicals stored inside are harmful.

    It is highly recommended for customers to validate the sensor performance using this document as a reference for their product designs or applications.

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