Overview
GUOYUGRA GY/VGD-200-Ex-G (0-100% LEL) High Temperature Combustible Gas detector is a low power consumption Modular design using MCU chip, with intelligent Sensor detection technology, overall flameproof (d) structure, fixed Installation method detector. Standard configuration is LCDTFT high definition LCD display, three-wire 4~ 20mA analog, RS485 digital and switching signal output, provide customized products according to user requests, and also support Output signal fine-tuning and other functions, convenient system networking and maintenance.
Features
1. Customizable Range Intelligent Sensor with High Sensitivity, High Accuracy, Linear Stability and 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, or stand-alone 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 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 detector adopts the principle of catalytic combustion detection, detects the concentration of combustible gas through the diffusion Sampling method, and outputs standard signals such as 4-20mA, RS485, etc., to achieve accurate measurement and alarm of gas concentration.
Applications
Explosive environment, flammability dust environment, workplace environment Gas detection, 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. Install the detector to ensure that it is firmly fixed.
2. Connect the power supply and Operating voltage DC24V.
3. Set the alarm value, zero, calibrate, reset and modify the address code through the remote control free-opening lid.
4. Select Output signal type (e.g. 4-20mA, RS485) and connect to receiving device.
5. Start the detector and observe the LCDTFT display to confirm the working status.
6. Perform signal fine-tuning or wireless transmission settings as required.
Notice
• Operating ambient temperature range is -20~ 50 ℃, Humidity is 10-95% RH (no condensation).
• Sensor life is 2 to 3 years, depending on the Operating Environment.
When connecting cables, choose three-core Shielding cables for 4 to 20mA, and four-core cables for RS485. When the distance exceeds 1000 meters, the diameter of a single wire is ≥ 1.5mm. Shielding layer needs to be connected to the earth.
• Wireless transmission can choose built-in or external modules, and remote data transmission requires optional GPRS/4G modules.
The alarm setting supports conventional high and low alarms and interval control alarms, and the standard configuration is two-level alarms.
• Electrical interface default M20X1.5 internal thread, optional 3/4NPT, 1/2NPT.
• Optional Accessories include 220V to 24V Power Adapter, computer monitoring accessories, etc. Measurement certificate fee is paid by the user.
