1、 Introduction to Industrial Explosion proof Temperature and Humidity Detection Transmitter

The BYG500-RHT industrial explosion-proof temperature and humidity detection transmitter not only controls gas concentration in special occasions by continuously detecting temperature and humidity gases in the atmosphere online and providing sound and light alarms. The instrument is widely used in industries such as urban pipe galleries, petroleum, chemical, metallurgical, fire protection, coal mining, electricity, shipbuilding, environmental protection, telecommunications, and medical care. The BYG500-RHT detector adopts imported capacitive principle sensors combined with high-speed and high-precision processing circuits, which have the advantages of stable signals, high accuracy, and good repeatability. It also adopts explosion-proof design and is suitable for various hazardous situations. The instrument outputs various standard signals and is compatible with various alarm systems, PLC, DCS and other control systems.

2、 Design basis for industrial explosion-proof temperature and humidity detection transmitter

This product is designed, manufactured, and calibrated in accordance with the following relevant national standards and corresponding regulations:

GB3836.1-83 General Requirements for Explosion proof Electrical Equipment for Explosive Environments

GB3836.4-83 Inherent Safety Circuits and Electrical Equipment "i"

GB2423.4-81 "Basic Environmental Testing Procedures for Electrical and Electronic Products - Alternating Damp Heat Test Method"

3、 Characteristics of industrial explosion-proof temperature and humidity detection transmitter

1. Stable and reliable communication, wide range power supply DC12-24V;

2. Using high-speed and high-precision processing circuits to process sensor signals, with fast response speed, high measurement accuracy, good stability and repeatability;

3. Full range temperature digital automatic tracking compensation ensures measurement accuracy;

4. Software calibration with button settings, simple and user-friendly operation;

5. Equipped with data recovery function, there is no need to worry about misoperation;

6 RS485、 The four wire 4-20mA output, relay output, and optional sound and light alarm fully realize the digitization and intelligence of the four wire gas transmitter;

7. The three explosion-proof buttons enable the transmitter to be freely configured on site, such as viewing, setting, and calibration;

8. Design of intrinsically safe circuits and explosion-proof enclosures, ensuring safe, convenient, and fast on-site maintenance;

9. The entire shell can rotate 360 degrees according to installation requirements.

4、 Technical parameters of industrial explosion-proof temperature and humidity detection transmitter

Technical Parameter	BYG500-RHT
Detect gas	Temperature and Humidity (RHT)
Temperature measurement range	-40-60 ℃ (conventional); -20-80℃； 0-100℃
Humidity measurement range	0-100%RH
resolution	Temperature: 0.1 ℃; Humidity: 0.1% RH
check the accuracy	±0.5℃（@25℃）； ±3%RH（10RH～90%RH，23±2℃）
Sensor lifespan	More than 5 years
Warm-up time	＜60S
sampling interval	3S
Response time (T90)	＜120S
Supply Voltage	DC 24V(12～30VDC)， The standard for a single device is a stable power supply of 24V, 1A, or greater than 1A
signal output	Four wire 4-20mA, RS485 Modbus RTU (wireless network transmission methods such as GPRS, RF, WIFI can be customized according to customer needs)
Alarm method	A set of relay outputs（ 2A@30V ）Sound and light alarm (optional)
Display mode	Without display, optional gas alarm host for remote display, control, and alarm
Installation method	Wall mounted, pipeline type (working pressure is atmospheric pressure ± 30%, pressure reduction is required if exceeding the pressure range)
Shell material	Aluminum alloy explosion-proof shell
Explosion proof grade	ExdII CT6
protection grade	IP65
work environment	-20～50℃； 0-95% RH (no condensation)
Environment	-40～60℃； 0-100% RH (no condensation)
Weight/Size	1.5kg/ 125mm×106mm×153mm
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