Easy Tech
关闭

Easy Tech · Piping as the foundation, Analysis as the insight

  • Phone:
    13764553949
    Fax:
    13764553949
  • Email:
    howard.huang@sh-easytech.com
    Address:
    Room 2007, Building 3, Jiefang Mansion, Zhucheng Road, Xinzhuang Town, Minhang District, Shanghai

For your privacy and security, we strictly keep your information confidential*

Gas monitoring system wiring project
Gas monitoring system wiring project

Gas monitoring system wiring project

The wiring of gas equipment and instruments in high-purity gas pipeline projects must meet three major requirements: material compatibility, sealing and leak-proofing, and signal accuracy. The core is to ensure gas purity and system safety.

  • High-purity material
  • Ultra-high sealing
  • Safety redundancy
  • Low-interference signal transmission
  • Clean-grade material
  • Safety interlock integration


CategoryCore moduleCore functionTechnical highlightsAdaptation Scenario
Gas detection instrument accessoriesSensor probe assemblyIt directly contacts the gas medium and converts the concentration signal into an electrical signal for outputDetection principle: Catalytic combustion/electrochemistry/infrared (optional)Atmospheric environment monitoring and gas sampling in confined Spaces
 Response time≤30s(T90)
Lifespan: 2 to 5 years (depending on the type of sensor)
Signal processing transmitterLinearize the sensor signal and output a standard industrial signalOutput signal:4-20mA/RS485Online analysis system, front end of gas alarm controller
Accuracy grade: 0.5
Support zero point/range self-calibration
Control valve accessoriesPneumatic/electric actuatorReceive control signals to drive the valve to open and close, achieving gas flow/pressure regulationAction time: 0.5-5 seconds (adjustable)Gas transmission pipeline and reactor feed control
Adjustment accuracy±1%FS
Protection grade IP67
Valve positionerPrecisely control the actuator stroke to enhance the valve regulation accuracyInput signal: 4-20mA/ FieldbusHigh-precision gas proportioning system, special gas conveying pipeline
Return difference≤0.5%
Supports HART protocol communication
Wiring engineering systemSignal transmission wiring unitRealize bidirectional signal transmission between gas detectors, sensors and the monitoring hostTwisted-pair shielded cable (anti-interference ≥80dBSemiconductor high-purity gas pipelines, laboratory gas distribution systems
The longest transmission distance 1000m(4-20mA)
Bus/star topology
Safety interlock control moduleInterlock valves/exhaust equipment to achieve emergency shut-off and alarm output in case of gas leakageRelay contact AC250V/10AChemical reactor area, LNG storage tank station, electronic specialty gas cabinet
Interlock response ≤50ms
Manual/automatic dual-mode switching
Explosion-proof wiring assemblyMeet the wiring safety requirements in explosive gas environmentsExplosion-proof grade Ex d IIB T6/Ex ia IIC T4Petrochemical workshop, gas boiler room, spraying operation area
Flameproof junction box +IP68 cable


Equipment/wiring typeCore parametersTechnical indicatorsApplication scenarios
Gas source pressure reducing deviceMaterial/Leakage rate/pressure reduction accuracy316L BA grade valve body, leakage rate ≤2×10⁻⁸ atm, pressure fluctuation ±0.5% after secondary pressure reductionTerminal pressure reduction of inert gases such as nitrogen and argon
Specialty gas cabinet(GC)Alarm pressure/Material/control modeThe pressure alarm threshold is 0.1-0.3MPa, the inner tube is SS316L-EP, and the PLC automatically switches the gas cylinderStorage and transportation of highly toxic gases such as SiH₄/PH₃
Gas distribution cabinet(VMB)Number of interfaces/gas compatibility/flow range8-12 interfaces, compatible with corrosive gases, maximum flow rate 500L/minGas distribution for lithography/deposition processes
Welded wiringMaterial/Insulation grade/temperature resistance range316L stainless steel sheath, FEP insulation layer, temperature resistance -60℃ to 200℃, grounding resistance of the shielding layer < 1ΩValve position feedback signal transmission
Ferrule wiringConnection method/pressure resistance grade/leakage rateVCR double ferrule joint, with a pressure resistance of 3000PSI and a leakage rate of ≤1×10⁻⁹ Pa·m³/sConnection of sampling pipelines for analytical instruments
Gas detection sensorDetection accuracy/response time/signal outputThe oxygen sensor has an accuracy of ±1%FS, a response time of less than 10 seconds, and a 4-20mA analog signal outputMain pipe leakage monitoring and safety interlock
Equipment/wiring typeCore parametersTechnical indicatorsApplication scenarios
Gas source pressure reducing deviceMaterial/Leakage rate/pressure reduction accuracy316L BA grade valve body, leakage rate ≤2×10⁻⁸ atm, pressure fluctuation ±0.5% after secondary pressure reductionTerminal pressure reduction of inert gases such as nitrogen and argon
Specialty gas cabinet(GC)Alarm pressure/Material/control modeThe pressure alarm threshold is 0.1-0.3MPa, the inner tube is SS316L-EP, and the PLC automatically switches the gas cylinderStorage and transportation of highly toxic gases such as SiH₄/PH₃
Gas distribution cabinet(VMB)Number of interfaces/gas compatibility/flow range8-12 interfaces, compatible with corrosive gases, maximum flow rate 500L/minGas distribution for lithography/deposition processes
Welded wiringMaterial/Insulation grade/temperature resistance range316L stainless steel sheath, FEP insulation layer, temperature resistance -60℃ to 200℃, grounding resistance of the shielding layer < 1ΩValve position feedback signal transmission
Valve position feedback signal transmissionConnection method/pressure resistance grade/leakage rateVCR double ferrule joint, with a pressure resistance of 3000PSI and a leakage rate of ≤1×10⁻⁹ Pa·m³/sConnection of sampling pipelines for analytical instruments
Gas detection sensorDetection accuracy/response time/signal outputThe oxygen sensor has an accuracy of ±1%FS, a response time of less than 10 seconds, and a 4-20mA analog signal outputMain pipe leakage monitoring and safety interlock

Download

Add:Room 2007, Building 3, Jiefang Mansion, Zhucheng Road, Xinzhuang Town, Minhang District, Shanghai
Tel:
13764553949
扫码关注
Copyright © 2025 Shanghai Easy Electronic Technology Co., LTD. All rights reserved     ICP: