|product name:||Dimethylacetamide gas alarm|
|Measurement object:||Dimethylacetamide in the air|
Dimethylacetamide, full name is N, N-dimethylacetamide (chemical formula: CH3C (O) N (CH3) 2 is abbreviated as DMAC or DMA. A commonly used as aprotic polar solvent. On-line formula Dimethylacetamide gas alarm, suitable for real-time and accurate detection of dimethylacetamide gas concentration and leakage in various environments, using PID light particle detection principle sensor and microcontroller technology. Fast response speed, high measurement accuracy, Good stability and repeatability. Explosion-proof wiring method is suitable for various hazardous locations, and is compatible with various control alarms, PLC, DCS and other control systems. It is widely used in petrochemical, industrial production, smelting and forging, power, coal mines, Tunnel engineering, environmental monitoring, sewage treatment, bio-pharmaceuticals, household environmental protection, livestock breeding, greenhouse cultivation, warehousing and logistics, brewing and fermentation, agricultural production, fire protection, gas, building construction, municipal enterprises, school laboratories, scientific research centers and other industries;
The product uses original imported sensors: using intelligent processing platform and PID light particle detection technology, excellent stability and strong anti-interference ability. The smallest volume in the world, fast response speed and high measurement accuracy! Infrared remote control: The alarm can be set without opening the cover, which is safe and convenient. Three-wire system 4-20mA standard current output: perfectly connected with control instrument and DCS, PLC system. Intelligent modular sensor: easy to replace and maintain, no calibration required during replacement.
Detection range: 0-1, 10, 100, 1000, 10000PPM, etc. (customizable range, please contact online customer service for details)
Resolution: 0.1ppm, 0.01PPM, 1PPM (depending on range and sensor)
Display mode: LCD display
Detection method: Diffusion type, flow type, pumping type are optional
Signal output: ① 4-20mA signal: standard 16-bit precision 4-20mA output chip, transmission distance 1Km
② RS485 signal: using standard MODBUS RTU protocol, transmission distance 2Km
③ Voltage signal: 0-5V, 0-10V output, can be set by yourself
④ Pulse signal: also known as frequency signal, adjustable frequency range (optional)
⑤ On-off signal: 2 groups of relays as standard, optional third group of relays, passive contacts of relays
Transmission method: ① Cable transmission: 3 core, 4 core cable, long distance transmission (1-2 km)
② GPRS transmission: can be built-in GPRS module, real-time remote transmission of data without distance limitation (optional)
Receiving equipment: user computer, control alarm, PLC, DCS, etc.
Alarm method: live sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, etc.
Alarm settings: Standard configuration of two-level alarm, optional three-level alarm; alarm modes can be set: conventional high-low alarm, interval control alarm
Electrical interface: 3/4 ″ NPT internal thread, 1/2 ″ NPT internal thread, and supports 2 electrical connection methods
Housing material: Die-cast aluminum + sandblasted oxidation / fluorocarbon paint, explosion-proof and anti-corrosion
Working power: 24VDC (12 ～ 30VDC)
Dimension and weight: 183 × 143 × 107mm (L × W × H) 1.5Kg (net weight of the instrument)
① The detection probe of the gas alarm should be cleaned regularly to prevent dust and impurities from blocking the ventilation holes and reducing the sensitivity of the sensor.
② When the gas alarm is about to expire, the sensor needs to be replaced. After replacing the sensor, the product should be recalibrated.
③ When using online, you should check whether the gas alarm and the host are connected correctly and provide a stable power supply for the gas alarm. It is forbidden to switch the power on and off frequently to avoid affecting the stable operation of the gas alarm.
④The gas alarm should be calibrated regularly, and the calibration records should be kept. The gas alarm must be operated for more than 3 hours when it is stable, and then calibrated. (The calibration interval depends on the product's operating environment.)