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Location: Liaocheng , Shandong
Browsing times: 2775
Company address: Dongchangfu District, Liaocheng City, Shandong Province
李女士(女士) 13563567727 Ms. Li (Ms.)
Professional production of fixed, portable, handheld methane detectors, methane concentration detection alarms, methane leak alarms Manufacturer: Shandong Huada Instrument Co., Ltd. Model: HD-700 \ 800 \ 900 Detailed introduction: (TEL: \) Methane The alarm is characterized by high detection accuracy, stable performance, strong anti-poisoning, anti-interference ability, and reliable quality. The methane alarm can work for a long time in the place of flammable and explosive gas. It is used in conjunction with the alarm controller to monitor the gas concentration on site in real time. If the concentration exceeds the standard, an alarm signal will be sent out to eliminate the hidden danger in time.
Each channel of methane leakage alarm is automatically displayed, with LCD backlight, and each channel is automatically inspected, locked, and set. When the concentration of the detected gas in the environment reaches or exceeds the preset alarm value, an audible and visual alarm is issued immediately, and the exhaust air is driven. Cut off and spray the system to prevent occurrence, fire and poisoning accidents, thus ensuring safe production. To remind users to take safety measures!
Methane alarms are widely used in manufacturers of medicine, chemical industry, petroleum, fire protection, electric power, metallurgy, biopharmaceuticals, methane, mines, rare gas research, etc.
The detector detects that the gas leakage reaches the set alarm value and outputs a 4-20mA current signal to the alarm host. The alarm host displays the concentration change, and the sound and light alarm, and can link the fan, solenoid valve , exhaust fan and so on.
Detection principle: catalytic combustion type / electrochemical type / semiconductor type detection gas: methane gas / toxic gas measurement range: 0-100% LEL / 0-1000ppm
Accuracy: ± 2% FS
Response time: less than 30 seconds Recovery time: less than 30 seconds Explosion-proof method: Explosion-proof explosion-proof grade: Exd || CT6
Explosion-proof connection thread: G3 / 4 pipe thread Working voltage: DC24V ± 12V
Two-stage alarm relay contact output (contact capacity DC24V / 1A)
Working temperature: -40 ℃-+ 70 ℃ Relative humidity: 0≤95% RH
Output: Three-wire connection cable: ≥RWP3 × 0.5mm2
Specification: 180 * 140 * 92mm
Standby time ≥ 3 hours [Main performance]
1. High brightness digital tube display
2. High-performance sensor , high precision, accurate measurement and stable performance
3. Alarm time recording function
4. Probe fault alarm function, alarm hold, first alarm channel indication
5. Installation method: tube installation, wall installation, bracket installation
6. Alarm output: DCS, 485 signal, PLC, 4-20mA and other outputs can be connected as needed [Notes on installation]
1. Do not install in a place directly affected by neat and oily fumes.
2. Do not install in places with large air flow such as exhaust ports, ventilating fans, and room doors.
3. Do not install in a place where there is a lot of water vapor and water droplets (relative humidity is 90%).
4. Do not install in a place where the temperature is below -30 ℃ and above 90 ℃.
5. Don't press in strong electromagnetic place.
Of course, there is less introduction here. If you need more detailed professional technical indicators, please contact us. : Manager Li:: Email: QQ; 1246747578