Zhongjiaohua

Zhongjiaohua Mobile Composite Gas Detection Alarm ZJAH-MIC-600-A Product Introduction:
Product model: ZJAH-MIC-600-A
Product brand: Zhongjiaohua
Product category: Multi gas detector
Product note: Gas detection alarm

Zhongjiaohua Mobile Composite Gas Detection Alarm ZJAH-MIC-600-A Product Overview:
The ZJAH-MIC-600-A online composite gas detection alarm is used for 24-hour continuous online monitoring of various gas concentrations and temperature and humidity measurement on site. It displays concentration and over limit sound and light alarms on site, and remote data transmission. Adopting a 2.5-inch high-definition color screen to display concentration in real time, and selecting the best brands of electrochemical, infrared, catalytic combustion, thermal conductivity, PID photoionization principle gas sensors, Swiss high-precision capacitive digital temperature and humidity sensors according to different detection gases, ZJAH-MIC-600-A advanced circuit design, mature core algorithm processing, has obtained multiple software copyright patents and appearance patents, thus giving birth to the leading new generation of multifunctional fixed online composite gas detection alarm in the industry. ZJAH-MIC-600-A can detect gas concentrations in pipelines, confined spaces, and atmospheric environments, as well as detect gas leaks and the purity of high concentration single gases. The sturdy and durable explosion-proof shell and fluorocarbon paint surface treatment process are suitable for various hazardous areas and corrosive environments with strong acids and alkalis. They are wear-resistant and will not fade or peel off the paint within 10 years.

Zhongjiaohua Mobile Composite Gas Detection Alarm ZJAH-MIC-600-A Product Features:
● Intrinsic safety circuit design, explosion-proof certification, secondary lightning protection, anti-static, lightning protection and anti-static capabilities
Exceeding national standards, resistant to high-intensity pulse surge current impact. High reliability and stability.
Anti reverse connection design, any form of reverse connection will not damage the instrument
Compliant with EMI and EMC standards, passed national standard testing and CMC measuring instrument license certification.
Execution standard: GB15322.1-2003
GB 3836.1-2010 General Requirements for Electrical Equipment Used in Explosive Gas Environments
GB 3836.2-2010 "Explosion proof type" d "for electrical equipment used in explosive gas environments"
GB 3836.4-2010 "Inherent Safety Type 'i' of Electrical Equipment for Explosive Gas Environments"
Standard bus RS485 (RTU) and 4-20mA standard signal are simultaneously output, with 3 sets of relay switch output and on-site sound and light alarm. Optional frequency output of 200-1000Hz, Hart protocol signal, 1-5V output, wireless transmission (2-5 kilometers or unlimited distance). Wired or wireless remote real-time monitoring is available. The data can be uploaded to the mobile phone or transmitted to the environmental protection bureau, other monitoring centers, monitoring equipment, and monitoring computers through the LAN and Internet. The on-site concentration can be monitored in real time through free upper computer software or gas alarm controller.
Compatible with various secondary meters, data acquisition modules, PLC, DCS systems, it can directly drive electromagnetic valves, fans, detectors and other equipment, and can also drive high-power equipment by driving intermediate relays. The optional MIC2000 controller can monitor 1000 detectors simultaneously.
● Large capacity data storage function, which can record real-time concentration values, temperature and humidity, or only record alarm values and time. Supports local storage or SD card storage. The standard capacity for local storage is 100000 records, and larger capacity should be specified when ordering. The storage capacity of SD card can be customized. Through free upper computer software for data export and analysis, it supports viewing or deleting data on the local machine. It can be set to automatically overwrite or not overwrite data when the capacity is insufficient, and the recording function will automatically stop.
Equipped with an infrared remote control, it can achieve cover free operation in dangerous situations, such as modifying alarm points, concentration calibration, zero calibration, noise reduction, factory reset, entering menus, viewing records, 4mA output, 20mA output (this function is required for calibrating other acquisition devices).
The interface is selectable in both Chinese and English, with a default Chinese interface that supports free switching of gas concentration units. Conventional gases do not require input of molecular weight, while special gases automatically calculate and switch when molecular weight is input. Units can be selected: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L
The 2.5-inch high-definition color screen (LCM) displays real-time information such as concentration, time, temperature, humidity, storage status, etc. It can simultaneously detect 4-6 gas concentrations and temperature and humidity. The menu interface uses high-definition simulation icons to display the function names of each menu, and provides concise Chinese or English operation prompts.
Three display modes can be switched: simultaneously displaying multiple gas concentrations, large font cyclic display of single channel gas concentration, real-time curve, automatic or manual cyclic switching between channels, setting whether to display maximum value, minimum value, gas name, and viewing historical curve graphs.
● Automatic zero tracking to prevent drift, temperature compensation, multi-level calibration, able to simultaneously comply with national standards and local and provincial metrology bureau standards in various regions
The data recovery function and automatic identification and prevention of concentration calibration errors can avoid adverse effects caused by improper operation.
● It can record calibration logs, maintenance logs, troubleshooting solutions, remind sensor life expiration, and remind the next concentration calibration time

Zhongjiaohua Mobile Composite Gas Detection Alarm ZJAH-MIC-600-A Product Parameters:
Detecting gases: composite gases (carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, combustible gas Ex),
Optional: Can detect up to 4-6 gases and temperature/humidity simultaneously
Detection range: CO (0-1000ppm), H2S (0-1000ppm), O2 (0-30% Vol), Ex (0-100% LEL), other ranges can be customized
Resolution: CO (0.1ppm), H2S (0.01ppm), O2 (0.01% Vol), Ex (0.1% LEL), higher resolution can be customized
Detection principles: electrochemistry, catalytic combustion, infrared, thermal conductivity, PID photoionization, depending on gas, range, on-site environment, and user requirements
Sensor lifespan: electrochemical principle 2-3 years, oxygen 2 years or 6 years optional, infrared principle 5-10 years, catalytic combustion 3 years, thermal conductivity 5 years
Temperature detection: -40 ℃~+120 ℃ (optional), humidity detection: 0-100% RH (optional), resolution: temperature 0.1 ℃, humidity: 1% RH
Detection accuracy: ≤± 2% F.S (within the full range ≤ 2%), temperature 0.5 ℃, humidity: 3% RH, higher accuracy can be customized
Working mode: fixed installation, online detection, diffusion measurement, pipeline, circulation, pump suction optional
Installation methods: pipeline type, wall mounted type. The working pressure of pipeline type is atmospheric pressure ± 30%. If it exceeds the range, it needs to be depressurized
Response time: T90 ≤ 20 seconds
Recovery time: ≤ 30 seconds
Output signal: Bus based RS485 (RTU), optional three (four) wire system 4-20mA, 0-20mA, 1-5V, 0-5V, 0-10V, wireless transmission
Alarm mode: on-site sound and light alarm (optional), default 1 channel, optional 3 passive contact (dry node) outputs, three-level alarm, alarm points can be set
Working environment: -40 ℃~+70 ℃
Sample gas temperature: -40 ℃~+70 ℃ (conventional), optional: -40 ℃~+400 ℃, -40 ℃~+800 ℃ (up to 1300 ℃)
Relative humidity: ≤ 10-95% RH (conventional) for non condensing applications, optional: 10-99% RH for high temperature and high humidity applications. Please specify when ordering, and a pre-treatment system is required
Working voltage: 12~30V (DC, standard power supply for a single device is 24V, 1A or greater DC switching power supply)
Power reference: A 24V, 2.1A switch power supply can drive 40 toxic gas detectors or 15 flammable and infrared gas detectors
Explosion proof form: Explosion proof Exd Ⅱ CT6
Connection cable: Choose a three core shielded cable for 4-20mA, a four core shielded cable for RS485, and a single wire diameter of ≥ 1.5mm when the distance exceeds 1000 meters; the shielding layer is grounded
Electrical interface: 3/4NPT, optional M20X1.5 internal thread, 1/2NPT
Protection level: IP66 waterproof splash and short-term rain. For long-term rain, a rain cover should be selected or a shell without display should be chosen or specified when ordering
Dimensions: 210 × 170 × 85mm
Weight: 1.8Kg
Optional accessories: wall mounting bracket, mounting bracket fixed on the pipeline (four or six branch), DN50 flange pipeline installation or stainless steel threaded welding seat (pipeline size should be specified, such as DN50, DN15...), room temperature and high humidity pretreatment system, high temperature and high humidity pretreatment system, high temperature and high humidity and high dust pretreatment system, pressure reducing valve, flow meter, temperature and humidity measurement, large capacity SD storage card, rain cover, 24VDC or 220AC sampling pump (sampling distance of 10 meters), vacuum pump (sampling distance greater than 40 meters), 24V switch power supply.
Accessories required for computer monitoring: free upper computer software, RS485/RS232 converter, USB/RS232 conversion cable for laptops without RS232 interface, and TCP/IP converter for network transmission
Application scenarios: Petroleum, chemical, pharmaceutical, environmental protection, flue gas analysis, air treatment, and all other applications that require fixed installation and online detection of gas concentration