Hydrogen Sulfide Sensor Amphenol EC4-1000-H2S Featuring Linear Response and Operating Humidity Range
Product Overview
The EC4-1000-H2S is a Hydrogen Sulfide (H2S) electrochemical sensor designed for performance and reliability. It offers a measurement range of 0 - 1000 ppm with a sensitivity of 50 - 130 nA/ppm H2S. The sensor exhibits a linear response across its range and a fast t90 response time of less than 45 seconds. It is suitable for operation within a temperature range of -20 to +50 C and humidity levels of 15 - 90% RH (non-condensing). This RoHS compliant device is intended for use in various gas sensing applications.
Product Attributes
- Brand: SGX Sensortech
- Model: EC4-1000-H2S
- Label Colour: Silver
- RoHS Compliant: Yes
- Origin: Registered in England
Technical Specifications
| Specification | Value |
|---|---|
| PERFORMANCE Range | 0 - 1000 ppm |
| Sensitivity | 50 - 130 nA/ppm H2S |
| Zero in air at 20 C | <8 ppm H2S |
| Resolution | 1 ppm H2S |
| Expected lifetime | 2 years |
| Linearity | linear across range |
| Response time, t90 | <45 s |
| Long-term output drift | change in output per month |
| OPERATING CONDITIONS Temperature range | -20 to +50 C |
| Temperature coefficient | <0.5% signal per C |
| Operating humidity | 15 - 90% RH (non-condensing) |
| Pressure range | 90 - 110 kPa (nominal) |
| Operating circuit | see Electrochemical Toxic Sensor Application Note |
| Applied potential | 0 V |
| Storage life | 6 months in original packaging (0 - 25 C) |
| Weight | 6 g |
| Dimensions | see outline |
Cross-Sensitivity Data
| GAS | Concentration (ppm) | Sensor Response (As ppm H2S) |
|---|---|---|
| Carbon Monoxide | 300 | 0 |
| Sulfur Dioxide | 5 | 0 |
| Nitric Oxide | 35 | <3 |
| Nitrogen Dioxide | 5 | 0 |
| Hydrogen | 1000 | 0 |
| Isobutylene | 100 | 0 |
Important Note
Do not solder to the connector pins as this may damage the sensor and thereby invalidate the warranty. Details on recommended connector pins can be found in the Frequently Asked Questions within the Gas Sensor section of the SGX website.
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