Explosion proof hydrogen sulfide detector

1Explosion proof hydrogen sulfide detectorProduct Introduction

1.1 Overview

The toxic and harmful gas detector is a new type of gas detection instrument produced by our company. This machine adopts high-performance catalytic combustion gas sensing components and microcontroller technology, combined with excellent SMD process manufacturing. It has good repeatability and temperature and humidity characteristics, long service life, and easy operation. Suitable for detecting the concentrations of methane (CH4), oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), and hydrogen (H2) in industrial environments, especially underground pipe galleries, as well as temperature and humidity.

The toxic and harmful gas detector converts the gas concentration signal in the air into a digital signal and is equipped with RS485 interface and WIFI transmission function. The gas concentration and temperature/humidity data measured in the detector can be accessed through RS485 interface or WIFI signal (can be customized according to requirements).

Local display version without local display

1.2 Meaning of Explosion proof Signs

Explosion proof mark refers to the identification used to describe the explosion-proof level, temperature group, explosion-proof type, and applicable area of explosion-proof electrical equipment.

Example: Exd IIC T6 Gb (explosion-proof type)

Ex d IIC T6 Gb - Device Protection Level

|| | | -------- Temperature group

|| | ----------- Class II Explosion proof Category

|| ---------------- Explosion proof type

|-------------------------Explosion proof label

Ex - Explosion proof General Sign;

D - Explosion proof electrical equipment with the ability to withstand the explosive pressure of internal explosive gas mixtures and prevent the spread of internal explosions to the surrounding explosive mixture of the shell, marked as "d".

The IIC explosion-proof group is: Class II electrical equipment used in places other than mines

T6- Temperature Class: T6=Refers to the maximum surface temperature of the equipment not exceeding 85 ℃.

Gb device protection level: It has a high device protection level and will not explode under normal operation or expected failure.

According to the current national standard GB3836.1-2010 "Explosive Atmosphere Part 1: General Requirements for Equipment", under the same conditions, electrical equipment with explosion-proof markings meeting the Ex d IIC T6 Gb standard shall have a higher explosion-proof rating than electrical equipment with explosion-proof markings meeting the Ex d IIC T6 Gb standard.

IIExplosion proof hydrogen sulfide detectorTechnical Specifications

2.1 Main technical indicators

Detection principle: electrochemistry;

Gas detection: hydrogen sulfide (H2S);

Sampling method: natural diffusion;

Test range: Hydrogen sulfide: 0-1000ppm;

Resolution: Hydrogen sulfide: 1ppm;

Measurement error: Hydrogen sulfide: ± 5% FS

Expected lifespan: 2 years (calculated from the date of manufacture)

Status indication: LED, digital display (customizable);

Debugging methods: PC, mobile phone, etc;

Response time:<30s;

Recovery time:<30s;

Environmental temperature: -20 ℃ to 50 ℃;

Relative humidity:<95%;

Explosion proof method: Explosion proof type;

Explosion proof grade: ExeICT6Gb;

Protection level: IP65;

Power supply: DC24V;

Output signal: RS485; WIFI（2.4G）;

Power consumption: ≤ 10W;

Whole machine weight: ≤ 2Kg;

Pressure limit: 86kPa~106kPa;

Usage: Used in hazardous areas with explosive flammable gases IIA~IIC and temperature groups T1~T6

3、 Wiring Definition

3.1 Wiring Color Description

Reserve one four core wire for the toxic and harmful gas detector, with the following color definitions: