Overview
GUOYUGRA GY/VGD-200-CH4O-G (0-50ppm) methanol detector is a low-power Modular design using MCU chip, with intelligent Sensor detection technology, overall explosion-proof (d) structure, fixed Installation method of gas concentration detector. The standard configuration is LCDTFT high definition LCD display, three-wire system 4~ 20mA analog, RS485 digital and switching signal output, support customized products and Output signal fine-tuning and other functions, convenient system networking and maintenance.
Features
1. Customizable Range Intelligent Sensor, High Sensitivity, High Accuracy, Linear Stability, Fast Response
2. Using MCU chip, low power consumption, safe and reliable performance, accurate data conversion, stable signal output
3. Support 4-20mA, RS485, switch and other signal output, easy access to PLC, DCS, DDC and other industrial control systems
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 can be carried out by remote control without opening the lid
7. Local integrated sound and light alarm indication, support remote mobile phone, computer, monitoring room, third-party platform alarm prompt, infrared remote control one-click muffler
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
10. Explosion-proof certificate grade: Ex db IIC T6 Gb; explosion-proof certificate number: SYEx23.04100
Principle
The methanol detector adopts the principle of catalytic combustion detection and detects CH4O gas by diffusion Sampling method. The detector converts the gas concentration signal into an electrical signal output, and supports various output methods such as 4-20mA analog signal, RS485 digital signal and switch signal.
Applications
Workplace environment Gas detection, industrial process control, safety monitoring, electrical installation in dangerous places
Standards
GB/T3836.1-2021、GB/T3836.31-2021、GB3836.15-2000、GB12476.1-2013、GB12358-2006、GBZ2.1-2007、GB4208-2008
Steps
1. Set the alarm value of the detector by remote control without opening the lid
2. Zero adjustment operation by remote control without opening the lid
3. By remote control without opening the lid for calibrating operation
4. Reset operation by remote control without opening the lid
5. Modify the address code through the remote control free lid
6. One-click noise reduction through infrared remote control
Notice
• Operating voltage range DC12V~ 30V
• Ambient Temperature -20~ 50 ℃
• Environmental humidity of 10-95% RH (non-condensing)
• Sensor life is 2~ 3 years (depending on the environment used)
• Connecting cable selection: 4~ 20mA choose three-core Shielding cable, RS485 choose four-core
• When the distance exceeds 1000 meters, the diameter of a single wire is ≥ 1.5mm, and the Shielding layer is connected to the earth
• Explosion-proof form is Probe Transmitter and Sensor are flameproof
• Electrical interface default M20X1.5 internal thread, optional 3/4NPT, 1/2NPT
