ZJAH-MIC-300 Online Single Gas Detection and Alarm Device from Zhongjiaohua-Fornitore globale

Room 14612, Building 3, No. 1800 Panyuan Road, Changxing Town, Chongming District, Shanghai (Taihe Economic Development Zone, Shanghai)

Zhongjiaohua

ZJAH-MIC-300 Online Single Gas Detection and Alarm Device by Zhongqiohua Product Introduction:
Product model: MIC-300
Product brand: Zhongjiaohua
Product category: Single gas detector
Product note: Single gas detector

Product Overview of ZJAH-MIC-300 Online Single Gas Detection Alarm Device by Zhongjiaohua:
The online toxic and harmful gas detector is applied for 24-hour continuous online monitoring of gas concentration on site, with on-site sound and light alarm (optional) for exceeding the standard, and remote signal transmission. Using internationally renowned gas sensors, the main detection principles include electrochemical, infrared, catalytic combustion, thermal conductivity, PID photoionization, and other principles of gas sensors..
Suitable for detecting gas concentration in pipelines, confined spaces, and atmospheric environments; Gas leakage alarm. More than 500 types have been tested. The sturdy and durable explosion-proof shell is suitable for various hazardous locations and harsh industrial environments, and is widely used in industries such as petroleum, chemical, metallurgical, refining, gas transmission and distribution, and biomedicine.

Product Features of ZJAH-MIC-300 Online Single Gas Detection Alarm Device by Zhongjiaohua:
★ Diversified communication methods
Real time monitoring can be achieved through wired or wireless remote transmission, network transmission; Three wire system 4-20mA standard signal and standard bus RS485 (modbus RTU) output simultaneously; Compatible with secondary instruments, data acquisition modules, PLC, DCS systems, and capable of driving related equipment.
● Data recovery function, in case of misoperation, partial or full recovery can be selected
● Multiple alarm methods, with multi-dimensional three-dimensional indication of alarm status during alarm
Includes: 2 sets of relay switch output, sound and light alarm (optional).
The types of alarms include concentration alarms and fault alarms.
● Misoperation recognition function: automatic recognition and prevention of concentration calibration misoperations to avoid human factors causing adverse effects
● Zero point automatic tracking, long-term use is not affected by zero drift
Multi level calibration of target points to ensure measurement linearity and accuracy
● Wide working temperature: -40~+70 ℃, supports temperature compensation
● Intrinsic safety circuit design, explosion-proof, with secondary lightning protection and anti-static capabilities. Meet national standards and resist high-intensity pulse surge current impact. It has anti reverse connection function. Compliant with EMI and EMC standards.

ZJAH-MIC-300 Online Single Gas Detection and Alarm Device by Zhongjiaohua Product Parameters:

Gas detection	Toxic gases, oxygen, carbon dioxide, flammable and explosive gases, TVOC, etc
Application scenarios	All occasions that require fixed installation and online detection of gas concentration, such as petroleum, chemical, pharmaceutical, environmental protection, gas distribution, warehousing, flue gas analysis, air treatment, etc.
Testing Scope	0～1、10、100、1000、5000、50000、100000ppm、、
	100% LEL, 20%, 50%, and 100% Vol are optional, and other ranges can be customized.
resolution	0.01ppm（0～100 ppm），
	0.1ppm (0-1000 ppm), 1ppm (above 0-1000 ppm),
	0.1%LEL、0.01%Vol。
Detection Principle	Electrochemistry, catalytic combustion, infrared, thermal conductivity, PID photoionization, etc., depending on the gas type
	It depends on the measurement range, on-site environment, and user requirements.
Sensor lifespan	Electrochemical principle takes 2-3 years, oxygen can be used for 2 or 6 years, infrared principle takes 5-10 years,
	Catalytic combustion for 3 years, thermal conductivity for 5 years.
detection accuracy	≤± 3% F.S (higher precision can be customized)
Linearity	≤±2%	Repeatability	≤±2%	uncertainty	≤±2%
response time	T90 ≤ 30 seconds			recovery time	≤ 30 seconds
signal output	Bus based RS485 (RTU), three (four) wire system 4-20mA, optional: 0-20mA
	1～5V、0～5V、0～10V。
working environment	Temperature: -40 ℃~+70 ℃, humidity: ≤ 10~95% RH (conventional) Non condensing occasions
	When used in condensation situations, it is necessary to customize or specify the usage environment when ordering
Working Voltage	12-36VDC DC, the standard power supply for a single device is 24V, 1A or greater
	DC stabilized switching power supply
Power reference	A 24V, 2.1A switching power supply can drive 40 toxic gas detectors or 15 detectors
	Combustible and infrared gas detector
working method	Fixed installation, online detection, diffusion measurement; Optional pipeline type, flow type
	Pump suction measurement.
Installation method	Pipeline and wall mounted. The working pressure of pipeline type is atmospheric pressure ± 30%. If it exceeds the range, it needs to be depressurized.
alarm method	Default 1 channel, optional 2 passive contact (dry node) outputs, three-level alarm,
	Alarm points can be set. On site sound and light alarm (optional).
connecting cable	Choose three core shielded cable for 4-20mA, four core for RS485, when the distance exceeds 1000 meters
	Single wire diameter ≥ 1.5mm; shielding layer grounded.
Protection level	IP65
Explosion proof type	Explosion proof type
Explosion-proof marking	Ex d IIC T6 Gb
Overall dimensions	203 × 180 × 65mm (L × H × W) without light
	203 × 238 × 65mm (L × H × W) with light
Weight	1.0Kg
Standard Appendix	Instruction manual, certificate of conformity, warranty card, outer packaging box
Optional items	Integrated sound and light alarm, split sound and light alarm, 24V DC stabilized power supply
	Accessories for computer monitoring: free upper computer software, RS485/RS232 converter
	Laptops without RS232 interfaces also require USB/RS232 conversion cables. If
	TCP/IP converters are also required for network transmission.
wireless transmission	Optional function, can wirelessly transmit data to mobile phones, remote monitoring centers, and monitoring
	Computer and other monitoring equipment, using the upper computer on the computer for data analysis, storage
	Printing and other functions
Preprocessing system	Optional: Room temperature and high humidity pretreatment system, high temperature and high humidity pretreatment system
	High temperature, high humidity, and high dust pretreatment system
Installation type accessories	Optional: Wall mounting bracket, installation buckle fixed on the pipeline (four or six branch)
	Pipeline installation includes stainless steel threaded welding sockets or flanges (with pipe or flange dimensions specified, such as DN50, DN15, etc.), rain covers, 24VDC or 220AC sampling pumps (with a sampling distance of 10 meters), vacuum pumps (with a sampling distance greater than 40 meters), 24V switch power supplies, pressure reducing valves, and flow meters.