Electrochemical (ECD) FIXED H2S GAS

Product catalog summary

Introduction
This document provides technical specifications and installation guidelines for the Electrochemical (ECD) Fixed H2S Gas Transmitter developed by Wuhan Cubic Optoelectronics Co., Ltd. The transmitter is designed for industrial applications to detect hydrogen sulfide (H2S) gas concentrations.

Features

Utilizes proprietary infrared gas analysis technology for high accuracy and resolution.
Equipped with high and low alarm settings, featuring both audio and visual alerts.
Automatic zero calibration with air and diffusion-type sampling methods.
Fast response time and resistance to sensor poisoning.
Real-time gas concentration display via LED.
Durable metal casing suitable for industrial environments.

Specifications

Measuring Method: Electrochemical
Power Supply: DC 8-25V
Range: 0-100ppm (customizable)
Resolution: 1ppm
Display: 4-digit LED
Max Error: ≤±3% FS
Zero Repeatability: ±1% FS at 20°C
Zero Drift: 1% per month
Operating Temperature: -20°C to 55°C
Storage Temperature: -40°C to 85°C
Warming Time: 30 seconds
Output: Digital (RS485, 2-way TTL level); Analog (4-20mA)
Humidity: 0-95% RH non-condensing
Lifetime: 2 years in air
Sampling Method: Diffusion sampling

Application and Installation

Remote controller provided for zeroing, alarm setting, and adjustments.
Installation height depends on the gas's weight relative to air; typically 30cm from the ceiling for lighter gases.
Installation location should consider potential gas leakage sources and working structure.
Detection probe radius: 7.5m indoors, 15m outdoors; transmitter should be 5-7.5m from leakage source.
Power supply connections include terminals for high/low concentration alarms and current output.

Instrument Configurations

Gas Transmitter Model: CJH-5
Remote Controller: For operating the detector
Calibration Cover: Used for calibration
Expansion Bolt: For installation and equipment fixation

Catalog excerpts

Electrochemical (ECD) FIXED H2S GAS TRANSMITTER Jun. 10th 2011 Wuhan Cubic Optoelectronics Co. , Ltd Add:Fenghuang No.3 Road, Fenghuang Industrial Park,Eastlake Hi-tech Development Zone, Wuhan 430205, China Tel: 86-27-81628831 Fax: 86-27-87405251 www.GasSensor.com.cn

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FEATURES  Proprietary infrared gas analysis technology, with high accuracy, high resolution, long life and easy maintenance;  High and low alarm settings, two levels of audio and light alarms;  Automatic zero calibration with air; Diffusion-type sampling methods;  Fast response and Immune from “poisoning”;  Real-time displaying gas concentration with LED;  Audible alarm device to prevent accidents and ensure the safety of life;  Metal case for industrial online monitor 1 – Power cord port 2 - Ground Hole 3 - Enclosure 4- Bolt hole 5 - Digital display 6 - Infrared receiver 7 -

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Measuring method

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ION ■Transmitter mounting height is decided by the measured gas weight ratio. If the measured gas is less than air, the transmitter is usually installed in the up place, 30cm from the ceiling; if the ceiling is high (higher than 5 meters), the proper installation height should be considered by the gas leakage speed; ■Transmitter installation place is determined by gas leakage source and working structure. 1) Firstly to check the area of working place and possible leakage points to determine required quantity of gas detector. In general, the detection probe radius of 7.5 m indoor; outside radius...

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