Overview
GUOYUGRA GY/VGD-200-CH3Br-G (0-50ppm) Methyl Bromide Detector is a low-power Modular design using MCU chip, with intelligent Sensor detection technology, overall flameproof (d) structure, fixed Installation method detector. The standard configuration is LCDTFT high definition LCD display, three-wire 4~ 20mA analog, RS485 digital and switching signal output, customized products are provided according to user requests, and Output signal fine-tuning and other functions are also supported, which is convenient for system networking and maintenance.
Features
1. Customizable Range Intelligent Sensor is adopted to ensure the advantages of high Sensitivity, high accuracy, linear stability and fast Response of the detector
2. The MCU chip is used, which highlights the low power consumption, safe and reliable performance, accurate data conversion and stable signal output of the detector
3.4-20mA, RS485, switch and other signal output, easy access to PLC, DCS, DDC and other industrial control systems, can also be a single machine through the switch linkage fan, solenoid valve and other control equipment
4. Support customized wireless signal transmission: Zigbee, LORA, 433M, 4G, WiFi, NB, GPRS, etc
5 point array high definition LCDTFT LCD screen, Chinese and English Operating interface can be switched
6. The alarm value, zero adjustment, calibrate, reset, modify the address code and other function menu operations of the detector can be performed by remote control without opening the lid
7. Local integrated sound and light alarm indication, remote mobile phones, computers, monitoring rooms, third-party platforms and other alarm prompts can be realized through alarm control host or wireless signal, and infrared remote control can also be silenced with one click
8. Aluminum alloy cast explosion-proof shell, sturdy and durable
9. Passed a variety of CMA, CNAS, CE, ROHS, SIL, UL, ECM safety and other international certifications
Principle
The detector adopts the principle of PID photoion detection, and detects methyl bromide gas by diffusion Sampling method. The detection range is 0~ 50ppm (optional 100ppm, 200ppm, 1000ppm, 2000ppm), and the Response Time is ≤ 30S.
Applications
User computer, control alarm, PLC, DCS, DDC, etc
Standards
GB/T3836.1-2021 "Explosive environment Part 1: General requirements", GB/T3836.31-2021 "Explosive environment Part 31: Equipment protected by anti-dust ignition enclosure" t ", GB3836.15-2000" Electrical equipment for explosive gas environment Part 15: Electrical installation in hazardous places (except coal mines) ", GB 1 2476.1 - 20 1 3" Electrical equipment for flammability dust environment Part 1: General requirements ", GB12358-2006" General technical requirements for workplace environment Gas detection alarms ", GBZ2.1-2007" Occupational exposure limits for hazardous factors in the workplace ", GB4208-2008" Shell Protection Rating (IP code) "
Steps
1. Set the alarm value of the detector by remote control without opening the lid
2. Zero the detector by remote control without opening the lid
3. The detector is calibrated by remote control without opening the lid
4. Reset the detector by remote control without opening the lid
5. Modify the address code through the remote control free lid
Notice
• Operating voltage: DC24V (12V~ 30V)
• Ambient Temperature: -20~ 50 ℃
• Environmental humidity: 10-95% RH (non-condensing)
Sensor life: 2~ 3 years (depending on the environment used)
Explosion-proof form: Probe Transmitters and Sensors are flameproof
• Connecting cable: 4~ 20mA choose three-core Shielding cable, RS485 choose four-core, when the distance exceeds 1000 meters (with a detector), the single wire diameter is ≥ 1.5mm, and the Shielding layer is connected to the earth
• Electrical interface: default M20X1.5 internal thread, optional 3/4NPT, 1/2NPT
