Product Overview
The SFD-Ex-PID Series Point VOC Gas Detector is fitted with an imported photoionization sensor. Photoionization detectors measure low concentrations of VOCs and other toxic gases. As a highly sensitive wide-range detector, PID can be considered a low-concentration LEL detector. VOCs are common industrial chemicals, covering organic compounds (major sources of emergency hazards), fuels, lubricating oils, greases, degreasing solvents, paints, plastics and resins. This detector delivers high measurement accuracy, excellent stability and strong anti-interference capability.
Integrated with microprocessor-based intelligent processing, it achieves accurate readings and dependable alarm performance. The TFT variant comes with a color screen, Chinese menu interface and alarm record storage. Its sampling pump adopts an imported brushless motor with adjustable flow rate, featuring explosion-proof design and long service life. An on-site integrated audible and visual alarm is available as an option.
Working on a 3-wire system, the digital transmitter module provides high-quality 4~20mA standard industrial output. It can be seamlessly connected to digital acquisition systems to realize remote real-time monitoring.
Constructed with cast aluminum and stainless steel housing, the detector boasts outstanding corrosion resistance. Its flameproof structure is suitable for continuous monitoring of volatile organic compounds in ambient air across various industrial settings.
This series offers a pump-sampling model designated SFD-Ex-PID-01L. One set of sensor protective cover, calibration hood, magnetic wand and mounting bracket is included as standard. Calibration gas is available as an optional accessory.
Product Features
This product adopts high-precision imported photoionization sensors to guarantee accurate gas detection. It is equipped with intelligent temperature compensation function and real-time fault prompt alarm, effectively avoiding detection errors caused by temperature changes and equipment faults.
Adopting professional SMT surface mounting technology, the device achieves excellent operational stability and low failure rate. Equipped with a full-color TFT LCD display screen, it features superior strong light interference resistance, ensuring clear and stable screen display even in high-brightness working environments.
Users can optionally equip the detector with an imported high-performance built-in brushless air pump for pump-sampling detection. All parameter configuration and equipment calibration can be completed conveniently with a magnetic wand. The product has obtained official national explosion-proof certification, meeting the safety standards for industrial explosive environments.
Technical Parameters
| Item | Specification |
|---|---|
| Detection Gas | Volatile Organic Compounds (VOCs), e.g. benzene, toluene, xylene, naphthalene, ketones, ammonia and amines, etc. |
| Measurement Range | 0~100 ppm or 0~1000 ppm |
| Accuracy | 2% F.S |
| Repeatability | ±2% |
| Long-term Stability | <±2% |
| Pump Flow Rate | 0~1000 mL/min, ten-level adjustable |
| Response Time | T90 < 20 s |
| Service Life | > 1 year |
| Explosion-proof Rating | Ex db IIC T6 Gb; Ex ib IIC T85°C Db |
| Power Supply | 24V DC |
| Voltage Range | 18~30V DC; Power consumption < 1.5W |
| Output | 3-wire system + relay output + integrated sound-light alarm, or 485 output |
| HART Protocol | Meets HART protocol requirements |
| Housing Material | Cast aluminum + stainless steel |
| Electrical Interface | 3/4" NPT(F), G1/2" internal thread |
| Detectable Gas Types | Customizable upon request |
| Protection Rating | IP66 |
| Operating Temperature | -40°C ~ 80°C |
| Ambient Humidity | < 95% RH |
| Dimensions | 196 × 230 × 105 mm |
| Weight | Approx. 2 kg |
