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Fixed multifunctional methane detector
The fixed multi-function methane detector can be used for remote real-time monitoring by wire or wireless. The data can be uploaded to the mobile phon
Product details
| brand | NGP/High Quality Technology | price range | Negotiable |
|---|---|---|---|
| Origin category | domestic | Application field | Medical and health care, environmental protection, chemical industry, biotechnology, petroleum industry |
2. Intrinsic safety circuit design, explosion-proof certification, secondary lightning protection and anti-static, lightning protection and anti-static capabilities exceeding national standards, and resistance to high-intensity pulse surge current impact. High reliability and stability. Anti reverse connection design, any form of reverse connection will not damage the instrument
3. Compatible with various secondary meters, data acquisition modules, PLC, DCS systems, it can directly drive electromagnetic valves, fans, alarms and other equipment, and can also drive high-power equipment by driving intermediate relays. The optional NGP2000 controller can monitor 1000 detectors simultaneously.
4. Large capacity data storage function, which can record real-time concentration values, temperature and humidity, or only record alarm values and time. Supports local storage or SD card storage. The standard capacity for local storage is 100000 records, and larger capacity should be specified when ordering. The storage capacity of SD card can be customized. Through free upper computer software for data export and analysis, it supports viewing or deleting data on the local machine. It can be set to automatically overwrite or not overwrite data when the capacity is insufficient, and the recording function will automatically stop.
5. Infrared remote control can achieve cover free operation in dangerous situations, such as modifying alarm points, concentration calibration, zero calibration, noise reduction, factory reset, entering menus, viewing records, 4mA output, 20mA output (this function is required for calibrating other acquisition devices).
6. The interface is selectable in both Chinese and English, with a default Chinese interface that supports free switching of gas concentration units. Conventional gases do not require input of molecular weight, while special gases automatically calculate and switch when molecular weight is input. Units can be selected: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L
7. The 2.5-inch high-definition color screen (LCM) displays real-time concentration, time, temperature, humidity, storage status, and other information, and can simultaneously detect 1-6 gas concentrations and temperature/humidity. The menu interface uses high-definition simulation icons to display the function names of each menu, with concise Chinese or English operation instructions.
8. Three display modes can be switched: simultaneous display of multiple gas concentrations, large font cyclic display of single channel gas concentration, real-time curve, automatic or manual cycling between channels can be switched, whether to display the maximum value, minimum value, gas name can be set, and historical record curve graphs can be viewed.
9. Automatic zero tracking to prevent drift, temperature compensation, multi-level calibration, able to simultaneously comply with national standards and local and provincial metrology bureau standards in various regions
10. The data recovery function and automatic identification and prevention of concentration calibration errors can avoid adverse effects caused by improper operation.
11. Capable of recording calibration logs, maintenance logs, troubleshooting solutions, sensor lifespan expiration reminders, and next concentration calibration time reminders. Fixed online multifunctional all-in-one detector
Detection principles: electrochemistry, catalytic combustion, infrared, thermal conductivity, PID photoionization, depending on gas, range, on-site environment, and user requirements
Detection method: Built in pump suction, flow rate of 500 milliliters per minute
Temperature detection: -40 ℃~+120 ℃ (optional), humidity detection: 0-100% RH (optional), resolution: temperature 0.1 ℃, humidity: 1% RH
Detection accuracy: ≤± 2% F.S (2% over full range), temperature 0.5 ℃, humidity 3% RH, higher accuracy can be customized
Detection methods: fixed installation, online detection, diffusion measurement, pipeline type (M45X1.5 external thread), flow type, pump suction type optional
Installation methods: pipeline type, wall mounted type. The working pressure of pipeline type is atmospheric pressure ± 30%. If it exceeds the range, it needs to be depressurized
Response time: T90 ≤ 20 seconds
Recovery time: ≤ 30 seconds
Output signal: Bus based RS485 (RTU), three (four) wire system 4-20mA, optional 0-20mA, 1-5V, 0-5V, 0-10V, wireless transmission
Working environment: -40 ℃~+70 ℃
Sample gas temperature: -40 ℃~+70 ℃ (conventional), optional: -40 ℃~+400 ℃, -40 ℃~+800 ℃ (maximum 1300 ℃)
Relative humidity: ≤ 10-95% RH (conventional) for non condensing occasions, optional: 10-99% RH for high temperature and high humidity occasions, when ordering
Please note that a preprocessing system is required
Working voltage: 12~30V (DC, standard power supply for a single device is 24V, 1A or greater DC switching power supply)
Power reference: A 24V, 2.1A switch power supply can drive 40 toxic gas detectors or 15 flammable and infrared gas detectors
Explosion proof form: Explosion proof Exd Ⅱ CT6
Connection cable: Choose a three core shielded cable for 4-20mA, a four core shielded cable for RS485, and a single wire diameter of ≥ 1.5mm when the distance exceeds 1000 meters; the shielding layer is grounded
Electrical interface: 3/4NPT, optional M20X1.5 internal thread, 1/2NPT
Protection level: IP66 waterproof splash and short-term rain. For long-term rain, a rain cover should be selected or a shell without display should be chosen or specified when ordering
Dimensions: 210 × 170 × 85mm
Weight: 1.8Kg
Optional accessories: wall mounting bracket, mounting bracket fixed on the pipeline (four branch, six branch), DN50 flange pipeline installation or stainless steel threaded welding seat (pipeline size should be specified, such as DN50, DN15...), room temperature and high humidity pretreatment system, high temperature and high humidity pretreatment system
High temperature, high humidity, and high dust pretreatment system, pressure reducing valve, flow meter, temperature and humidity measurement, large capacity SD storage card, rain cover, 24VDC or 220AC sampling pump (sampling distance of 10 meters), vacuum pump (sampling distance greater than 40 meters), 24V switch power supply.
Accessories required for computer monitoring: upper computer software, RS485/RS232 converter, USB/RS232 conversion cable for laptops without RS232 interface, and TCP/IP converter for network transmission
Application scenarios of fixed multifunctional methane detector: chemical, petroleum, pharmaceutical, environmental flue gas analysis, pipeline, boiler gas analysis, air treatment and all other occasions that require gas concentration detection
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