1. Overview
G750-PID gas detector is a newly developed pump-type, sustainable detection photoionization (PID) gas detection instrument developed by the company. It adopts vacuum nano-ceramic tube photoionization detection technology to make the PID sensor have a service life of more than 3 years. It has built-in imported High-performance air pump, fast response, fast recovery time, dual air channel air intake system, automatic cleaning on site, automatic zero adjustment, simple and convenient maintenance.
The shell is made of aluminum alloy with Teflon spray coating or SS316L stainless steel, which has excellent corrosion resistance and is especially suitable for volatile organic gas (VOC) detection in harsh environments.
2. Specifications
Detection principle: Ceramic PID
Detection Gases: VOSs volatile gas or vapor
Detection method: Pumping active sampling type (built-in high-performance diaphragm air pump)
Measurement accuracy: ±2%F.S.@0~5/10/20μmol/mol(C6H6) / ±5%F.S.0~1000μmol/mol(C6H6)
Sensor life: 5 years (overall unit) / ≥3 years (Ceramic PID light source) / ≥5 years (PID) (The actual service life is related to the environment)
Response time: T90<10s (Isobutylene)
Display mode: Patented design color LED module
Alarm mode: Comes with red sounder beacon
Adjustment mode: Infrared remote control
Installation mode: Fixed installation, hold pipes, wall-mounted or ceiling-mounted
Operating voltage: 24Vdc ((18~32V)
Power consumption: ≤5W
Output: 4 sets of relay outputs (2A 30Vdc) and red sounder beacon
Communication mode: RS485(Modbus RTU) and 4~20mA current loop, Hart optional
Alarm threshold: Depends on specific gas type
Operating temperature: -40℃ ~+70℃
Humidity range: 10%~95%RH (no condensation)
Electrical interfaces: 3 * NPT3/4 (adapters can be customized according to needs)
Housing material: Aluminum alloy with Teflon PTFE spray coating (SS316L stainless steel material optional)
Explosion-proof type: Flameproof & Intrinsically safe
Explosion-proof rating: Ex db ib IIC T6 Gb & Ex tb ib IIIC T80°C Db
Ingress protection: IP66
Dimensions: 260*175*128mm
Weight: 2.8kg (Aluminum alloy) / 4.5kg (SS316L stainless steel)
Certification: SIL3, BV, CNEx
3. Main Features
Ceramic PID sensor uses: Vacuum nanoceramic tube photoionization detection (PID) technology to ensure response speed and accuracy
Temperature and humidity compensation: Built-in temperature and humidity compensation sensor, with better anti-water vapor interference ability
Self-cleaning: Dual air intake system, automatic cleaning and automatic zeroing on site, protecting equipment and easy maintenance
Data display: Gas concentration is intuitively visible on the instrument panel, and can be read from a distance, making it easy to operate.
Comes with sounder beacon: Dual independent sounder beacon design truly meets explosion-proof requirements
Special gas intake path design: Unique gas intake path and pretreatment design can work normally in harsh environments such as high humidity and high salt spray
Built-in air pump: Built-in high-performance air pump, active suction, quick response and fast recovery time
Multiple working modes: Automatically switches working modes according to the concentration of hazard gases, responds quickly, and effectively protects the sensor and extends its service life
Self-diagnosis: Complete self-diagnosis and self-test functions (diagnosis of sensor life, sensor pollution, air pump failure, gas intake path blockage, etc.), active alarm, and easy maintenance
Multiple interface design: 3 independent 3/4 NPT interfaces for easy expansion
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They are now widely exporting to 200 countries.