Flammable Gas Detection and Alarm System

The Flammable Gas Detection and Alarm System of OKet consists of flammable gas detectors and flammable gas alarm controllers.
  • System Introduction


OKet's flammable gas detection and alarm system includes wired and wireless versions.

The system has two parts: the flammable gas detector (wired or wireless) and the alarm controller (wired or wireless). The detector uses NDlR technology to detect flammable gases like gasoline vapor and hydrocarbons. When gas levels reach the set alarm threshold, it triggers an alarm and sends a signal to the alarm controller and control platform. This allows managers to monitor all sites in real time from one place.


  • System Composition


888-01-01

  • Product Advantages


1. Complies with national standards and is applicable to multiple scenarios.

2. High range and long service life.

The flammable gas detector is based on the non-dispersive infrared absorption principle, with no loss during the detection process and stable status.

3. Friendly display and acousto-optic warning.

Real-time display of flammable gas concentration, multi-level alarm status, and equipped with acousto-optic alarm function.

4. Fault self-inspection, safe and reliable.

Supporting self-inspection of fault status, including power failure, circuit failure, etc.

5. Diverse communication, real-time and efficient.

The wired flammable gas detector can support RS485/4-20mA/relay communication methods, and the wireless flammable gas detector transmits signals via LoRa, the alarm controller reserves a communication interface, supports uploading of alarm information, and can be used in interlock with other monitoring and early-warning systems.

6. Flexible installation, simple and easy to use.

Supports multiple installation methods. The wireless flammable gas detector can achieve wireless communication without being restricted by on-site wiring.


  • Parameters

   

Technical parameters of Flammable Gas Alarm Controller 
Technical SpecificationsLM-G1 Flammable Gas Alarm ControllerLM-G2 Flammable Gas Alarm Controller 
Detector Input Signal4-20mA or RS485Wireless (LoRa) 
Communication MethodRS485RS485
Maximum Number of Detectors SupportedStandard configuration: 24 units, maximum of 40 units Standard configuration: 24 units, maximum of 64 units (Wireless) 
Operating Voltage220VAC±10%220VAC±10%
Dimensions345mm*410mm*183mm240mm*350mm*134mm
Operating Ambient Temperature-10°C~45°C-10°C~45°C
Storage Ambient Temperature-30°C~55°C-30°C~55°C
Relative Humidity<95%RH<95%RH
Power Consumption24VDC,15W24VDC,15W
Standby Power Supply24V 7Ah, Lead-acid batter24V 1.3Ah, Lead-acid batter
Response TimeAlarm response time <10s, Fault response time <40s Alarm response time <2s, Fault response time <20s 


Technical Parameters of Flammable Gas Detector 
Technical SpecificationsET01 Flammable Gas Detector GT-ET01 Flammable Gas Detector (Wireless- Universal Type)BTYQ-ET01 Flammable Gas Detector(Wireless-Magnetic)
Operating Temperature-40°C ~70°C-40°C ~70°C-40°C ~70°C
Measurement Range(0~100)%LEL(0~100)%LEL(0~100)%LEL
Communication MethodResolutionRS485/4-20mA/RelayWireless (LoRa) LoRa 
Resolution1%LEL1%LEL1%LEL
High Limit Alarm50%LEL50%LEL50%LEL
Low Limit Alarm (5~25)%LEL(adjustable)(5~25)%LEL(adjustable)(5~25)%LEL(adjustable)
Measurement Accuracy±3%F.S.±3%F.S.±3%F.S.
Response Time≤30s(T90)≤30s(T90)≤15s(T90)
Protection Level IP66IP65IP68
Explosion-proof TypeExplosion-proof TypeIntrinsically Safe TypeIntrinsically Safe Type
Explosion-proof Ex d IIC T6 GbEx ib IIC T6 GbEx ia IIC T4 Ga
Battery and Charging Frequency 24V power supply

Disposable lithium battery

/Rechargeable lithium battery (can last 6-12 months on a single charge)

Powered by disposable lithium batteries, with a lifespan of 3-5 years
Common Detectable GasesGasoline, isobutane, propane, alcohols, n-butane, ethane, methane, natural gas, etc. 

 

 

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