Overview
GUOYUGRA GY/VGD-200-R407a-G (0-1000ppm) refrigerant, refrigerant detector (infrared) is a low-power 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 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, convenient system networking and maintenance.
Features
1. Adopt Customizable Range Intelligent Sensor, which guarantees the advantages of high Sensitivity, high accuracy, linear stability and fast Response of the detector;
2. The use of MCU chip highlights the low power consumption of the detector, safe and reliable performance, accurate data conversion, stable signal output, etc.;
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 detector can be operated by remote control without opening the lid to perform function menu operations such as alarm value, zero adjustment, calibrating, reset, and modification of the address code;
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 body 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 infrared NDIR detection, and detects gas concentration through diffusion Sampling method to achieve High Accuracy measurement.
Applications
Industrial environment Gas detection, refrigerant leakage monitoring, refrigeration system safety monitoring, dangerous place gas alarm
Standards
GB/T3836.1-2021、GB/T3836.31-2021、GB3836.15-2000、GB12476.1-2013、GB12358-2006、GBZ2.1-2007、GB4208-2008
Steps
1. Installation of the detector: fixed installation according to the product size drawing and installation suggestions;
2. Connection cable: Select three-core Shielding cable (4~ 20mA) or four-core cable (RS485) according to the Output signal type, when the distance exceeds 1000 meters, the single wire diameter is ≥ 1.5mm, and the Shielding layer is connected to the earth;
3. Power supply: DC24V Operating voltage (range 12V~ 30V);
4. The signal output settings: according to the need to configure 4-20mA, RS485, switch or wireless signal output;
5. Alarm settings: Set the alarm value and Alarm mode (conventional high and low alarm, interval control alarm) through the remote control free opening lid;
6. calibrate and zero: use remote control for zero and calibrate operations;
7. Monitoring and data viewing: View real-time data and historical records through a computer, mobile phone, or monitoring room.
Notice
• Working ambient temperature range is -20~ 50 ℃, Humidity range is 10-95% RH (no condensation);
• Sensor life is about 10 years, depending on the Operating Environment;
• Explosion-proof form Probe Transmitter and Sensor are flameproof;
• Wireless transmission is optional, and remote data transmission requires an external GPRS/4G module;
• Optional Accessories such as 220V to 24V Power Adapter need to be purchased separately;
• Measurement certificate is optional, the user pays the fee;
• Output signal voltage output and current output choose one;
• Make sure the electrical interface matches, the default M20X1.5 internal thread, optional 3/4NPT, 1/2NPT.
