Phosphine PH3 gas alarm for circulating fumigation
What is circulating fumigation? Use advanced circulating fumigation equipment to promote fumigant gas circulation and force fumigant gas to quickly and evenly distribute in the Liliang heap.
Fumigation system is a kind of system with strong functions and good safety performance, which is based on the theory of grain storage related structure, combined with aerodynamic circulation theory and molecular diffusion, chemical control, microcomputer control technology, and reference to national GB / T17913-1999 , High-tech warehouse environmental protection products with ideal insecticidal effect and high degree of automation.
The circulation fumigation system is divided into fixed and mobile according to the fixed way of the circulation pipeline.
The fixed type means that the pipeline is fixed to the silo wall (fixed to the outer wall of the silo for external circulation and fixed to the inner wall of the silo for internal circulation), the mobile type is that the bleed air duct and air volume adjustment valve are fixed to the silo wall and the fan and air outlet air volume balance adjustment device Installed on a mobile cart (mobile circulation machine). The air piping and the circulation machine are connected by a hose.
The circulation fumigation system can be divided into whole warehouse circulation fumigation and sub-film circulation fumigation according to whether there is a pipeline under the grain surface. The whole warehouse is not covered with plastic film on the fumigation grain surface. The fumigant gas circulates in the whole warehouse composed of the space above the grain surface and the grain pile. Under-membrane circulation fumigation is the laying of pipes under the grain surface, covered with plastic film on the grain surface, and the fumigant gas is circulated in the grain pile below the grain surface.
For the circulating fumigation system in grain condition detection, Dong Ri Sun Energy Technology Co., Ltd. has specially developed a PH3 gas concentration detection alarm, which uses imported sensors with its own display and sound and light alarm. Our product sensor warranty is 3 years!
If there is any product quality problem within 3 years, you can replace the new product! Can provide project solutions, and provide life-long after-sales technical services! !!
Phosphine PH3 gas alarm is suitable for continuous on-line detection of phosphine PH3 concentration in various industrial environments and special environments. The instrument uses imported electrochemical sensors and microcontroller technology. It has stable signals, high accuracy and good repeatability. Advantages, meanwhile, the explosion-proof wiring method is suitable for various hazardous locations. The instrument is compatible with various control alarm systems, PLC, DCS and other control systems, and can realize remote monitoring, remote control, remote alarm, computer data storage, analysis and other functions.
1. On-site gas concentration liquid crystal display;
2. High-precision, long-life electrochemical and infrared imported sensors;
3.Powerful software setting support to meet customers' arbitrary range and all gas detection needs between 1.000-99999;
4. Alarm point adjustment, zero point adjustment and target point calibration can be performed on the detector without opening the cover through the controller or remote control;
5.Suitable for dozens of kinds of gas detection, and can choose to display dozens of kinds of common gas names;
6. Gas unit name PPM,% LEL,% VOL, can be set arbitrarily;
7. Program operation uses three-digit floating-point technology to ensure the accuracy of the operation;
8. Set the upper and lower limit alarm points arbitrarily within the full range;
9. RS485 bus communication, wiring is simple and convenient;
10.4 ～ 20mA current output signal, can be corrected, fully isolated, and the product has strong anti-interference ability;
11.2 group of normally open passive contact output, AC contactor for controlling fan or solenoid valve;
12. Exquisite power supply design, exquisite lightning protection design, and pure SMT component placement process, which make the product performance stable;
13. Ingenious structure design, the detector wiring is free of screws, and the installation is extremely easy;
Product name Phosphine PH3 alarm skyeaglee-600-PH3
Detection gas Phosphine PH3
Detection principle Electrochemical principle
Detection range: 0-5ppm, 0-20ppm, 0-500ppm, 0-1000ppm, 0-2000ppm, 0-4000ppm
Resolution 0.03ppm, 0.03ppm, 0.5ppm, 1ppm, 2ppm, 5ppm
Detection method: diffusion type, pump type
Display mode: LCD display
Output signal The user can decide according to the actual requirements, and can transmit up to 2000 meters (single core 1mm2 shielded cable)
① Two-wire 4-20mA current signal output (three-wire system optional)
② RS-485 digital signal output, with RS232 adapter card can store data on the computer (optional)
③ 2 groups of relay output: passive electric shock capacity 220VAC 3A, 24VDC 3A (optional)
④Alarm signal output: live sound and light alarm, alarm sound: <90dB (optional)
Detection accuracy ≤ ± 2% ()
Repeatability ≤ ± 1%
Zero drift ≤ ± 1% (/ year)
Alarm mode: sound and light alarm
Response time less than 20S
Recovery time: less than 20S
Explosion-proof type Intrinsically safe
Explosion-proof mark Ex ibdIICT4
Protection class IP65
Direct reading PPM,% LEL,% VOL
Sensor life: 24 months
Operating environment Temperature -20 ℃ ~ + 70 ℃; relative humidity ≤95% RH (non-condensing)
Working power 24VDC (normal working voltage range: 10 ～ 30VDC)
Overall dimensions (including probe length) 170 × 140 × 80mm
Housing Material Stainless Steel / Aluminum Alloy