Overview
GUOYUGRA GY/VGD-200-H2S-G (0-10ppm) hydrogen sulfide detector is a low-power Modular design using MCU chip, with intelligent Sensor detection technology, overall flameproof (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, provide customized products according to user requests, and also support Output signal fine-tuning and other functions, which is convenient for 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 detector adopts the principle of catalytic combustion detection and detects hydrogen sulfide gas by diffusion Sampling method. The detected gas concentration signal is processed by MCU chip, and 4-20mA analog signal, RS485 digital signal and switching signal are output to realize accurate measurement of gas concentration and alarm function.
Applications
Workplace environment Gas detection, industrial process control, safety monitoring system, electrical installation in hazardous places, flammability dust environment detection
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 the electrical interface is connected correctly
2. Connect DC24V Power Supply
3. Set the alarm value, zero adjustment, calibrating and other parameters through the remote control or Operating interface
4. The detector starts to work and displays the gas concentration in real time
5. Connect PLC, DCS, DDC and other Control systems or remote monitoring platforms as needed
6. Regular calibrating and maintenance
Notice
• Operating voltage range is DC12V~ 30V, DC24V is recommended
• Working Ambient Temperature -20~ 50 ℃, Humidity 10-95% RH (non-condensing)
Sensor life is 2-3 years depending on Operating Environment
• Connecting cable selection: 4~ 20mA choose three-core Shielding cable, RS485 choose four-core cable
• When the transmission distance exceeds 1000 meters, the diameter of a single wire should be ≥ 1.5mm, and the Shielding layer needs to be connected to the earth
• Explosion-proof form is Probe Transmitter and Sensor are flameproof
Periodically calibrated to ensure detection accuracy
• Pay attention to the electrical interface specifications when installing: default M20X1.5 internal thread, optional 3/4NPT, 1/2NPT
