- Model NumberQB2000T
- Brand NameHNCCDQ
- Payment TermsT/T, paypal
Product introduction:
QB2000T modular nitrogen dioxide detector has the characteristics of excellent performance, stable and reliable operation, convenient installation and maintenance, complete gas types, etc., which greatly meets the requirements of high reliability and stable operation of equipment and diversified gas types required by industrial field safety monitoring. It has been widely used in petroleum, chemical, metallurgy, refining, gas transmission and distribution, biochemical medicine and water treatment industries.
The detector is composed of cast aluminum shell, stainless steel sensor breathing device, sensor module, main control module, dust cover, calibration cover.
The modular intelligent gas detector (hereinafter referred to as the detector) is a fixed instrument that can continuously detect the concentration of gas, oxygen or toxic and harmful gas in the operating environment.
The detector USES imported electrochemical sensor, catalytic combustion sensor, infrared sensor or PID detector to detect gas concentration in a natural diffusion way. It has excellent sensitivity and repeatability. Start the sound and light alarm signal or drive the exhaust air system immediately beyond the preset alarm point; International standard 4-20ma signal can be directly connected to the factory DCS system or RS485 digital signal to connect with the upper computer; The instrument adopts embedded micro-control technology, simple operation, complete functions, high reliability, reliable performance of the whole machine.
The detector has the characteristics of excellent performance, stable and reliable operation, convenient installation and maintenance, complete types of gas measurement, etc., which greatly meets the requirements of high reliability and stable operation of equipment and diversified types of gas measurement for safety monitoring on the industrial site. It has been widely used in petroleum, chemical, metallurgy, refining, gas transmission and distribution, biochemical medicine and water treatment industries.
Main functions:
1. Support free combination of various modules, that is, gas detectors with different functions can be formed. Ordinary gas detector is composed of the main control module and intelligent sensor module. It can be optionally equipped with the RS485 communication module that has isolated RS485 signal output, and the LCD or digital tube display module that has digital display, high-low light alarm, fault status indication and infrared remote control function
2. RS485 signal output with signal isolation, standard Modbus_RTU communication protocol. Support direct connection with Siemens PLC or PLC or acquisition module at home and abroad, no need to add RS485 isolation module.
3. Liquid crystal display module and digital tube display module can be switched freely, and quick hot plug and plug, namely plug and play.
4. The new gas detector adopts standard interface, each module has interchangeability, and it is simple and convenient to replace the sensor module.
5. The sensor module and detector have anti-misplug interfaces, which will not be misplugged.
And positioning plug only gently spinning, can be easily aligned with the insertion.
6. The detector can be replaced with the same type of sensor, different types of gas sensor and different range sensor modules, and the operation and identification are completed automatically. Catalytic combustion sensor and electrochemical sensor can be replaced at will.
7. No calibration setting is required after any sensor module is inserted. Detector automatically identifies, reads the factory calibration data and relevant setting values, and runs immediately after the completion of self-inspection.
8. Replace the new factory sensor module with the old detector, so that the detector can have the same detection and alarm accuracy as the factory, and meet the measurement and other detection requirements.
9. Once the most vulnerable to damage and expired sensors fail, customers can find and solve problems by themselves through the convenient replacement of integrated detectors, thus avoiding the delay of door-to-door service and labor costs.
10. Inventory sensor module and detector module components, combined production, greatly shorten the production and delivery cycle under the same inventory.
Technical parameters:
Applicable gas: combustible gas, oxygen, toxic and harmful gas
Working environment: - 30 ℃ ~ + 50 ℃;
Humidity <90%RH no condensation
Working voltage: DC24 plus or minus 15%
Response time: T90<30s
Explosion-proof grade :ExdIICT6
Alarm point: first-level alarm user can change the setting;
Secondary alarm users can change the Settings
Protection level: IP66
Alarm output: passive switch output, capacity AC 220VA;
Independent acoustooptic alarm output **(optional)
Mounting thread: M20 * 1.5, g1/2 **
Signal output: standard 4-20ma signal;
RS485 isolated digital signal (optional)
Use cable: 3 x 1.5mm2 or 4 x 2.5mm2 shielded cable
Transmission distance: less than or equal to 1000m
Weight: about 1200g
