Fixed gas detector

Fixed Multi Gas Detector
Applied to: on-site 24-hour continuous online monitoring of various gas concentrations and temperature and humidity measurement, on-site concentration display, excessive sound and light alarm (optional), remote signal transmission. Use 2.5-inch HD color screen real-time display,International well-known brands of gas sensors, the main detection principles are: electrochemical, infrared, catalytic combustion, thermal conductivity, PID photoion and other principles of gas sensors, Swiss high-precision capacitive digital temperature and humidity sensor. Advanced circuit design, mature kernel algorithm processing,

Unique shape design, obtained a number of software works and appearance patents. Suitable for detecting gas concentrations in pipelines or confined Spaces and atmospheric environments; Gas leaks and various background gases are nitrogen or oxygen with a high concentration of single gas purity. More than 500 kinds of detection. Durable explosion-proof shell and fluorocarbon paint surface treatment process for a variety of dangerous places and strong corrosive environment, wear resistance.
Features:

★ Can detect 1 ~ 6 kinds of gas at the same time, the unit is free to switch.

★ Diversified communication methods.

Can be real-time monitoring through wired or wireless remote transmission, network transmission; Standard bus RS485 (modbus-RTU) and 4 ~ 20mA standard signal output simultaneously; Optional frequency output 200-1000Hz, Hart protocol signal, 1 ~ 5V output, wireless transmission (2 ~ 5km or unlimited distance); Compatible with secondary instrument, data acquisition module, PLC, DCS system, can drive related equipment. The optional MIC2000 controller can monitor 1000 detectors simultaneously.

★ Infrared remote control.

The standard infrared remote control is equipped with one-click operation through the function key of the infrared remote control, which can realize the operation without opening the cover in dangerous situations, such as: modifying the alarm point, concentration calibration, zero calibration, noise reduction, and factory restoration.

★ Rich man-machine interface.

2.5-inch HD color screen, display real-time concentration, alarm, time, temperature, humidity, storage and other information; The menu interface uses HD simulation graphics to display the function names of each menu.

★ Large capacity data storage function, support a variety of storage methods.

The standard data storage capacity of 100,000 pieces; Optional SD card storage function, support real-time storage, timing storage, or only store alarm concentration data; Support local view, delete data, can also be uploaded to the computer through the RS485 interface for data analysis or printing.

★ High temperature gas detection (optional).

Optional high temperature sampling and cooling filter handle or high temperature and high humidity pretreatment system can detect smoke at 1300 degrees. Gas detection at other temperatures can be customized.

★ Three display modes can be switched.

At the same time display a variety of gas concentrations, large character circulation display single-channel gas concentration, real-time curve display.

★ Graphical display, reflecting the trend of gas concentration change over a period of time in the form of a curve.

● Data recovery function, you can choose partial or full recovery, eliminating the worry caused by misoperation.

● Can set whether to display the maximum value, minimum value, average value.

● High precision temperature and humidity measurement (optional).

● A variety of alarm methods, when the alarm multi-directional three-dimensional indication alarm status.

Includes: 3 groups of relay switching output, sound and light alarm, display visual alarm. Alarm types include:

Concentration alarm, undervoltage alarm, fault alarm.

● Multiple alarm mode Settings: low alarm, high alarm, interval alarm, weighted average alarm.

● Misoperation identification function: The concentration calibration misoperation is automatically identified and prevented, which can avoid the bad caused by human factors.

● Zero automatic tracking, long-term use is not affected by zero drift.

● Multi-stage calibration of the target point to maximize the linearity and accuracy of the measurement.

● English and Chinese interface is optional.

● Wide operating temperature: -40 ~ +70℃, support temperature compensation.

● Log recording.

Record calibration log, maintenance log, fault record, fault resolution, sensor life expiration reminder, the next concentration calibration time reminder function.

● Intrinsic safety circuit design, explosion-proof, with two levels of lightning protection, anti-static ability. Meet national standards, resist

High intensity impulse surge current impact. It has anti-reverse connection function. Meet EMI and EMC standards.
Technical parameters:

Detection gas: composite gas (carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, combustible gas Ex),

Optional: Can detect any 4 ~ 6 kinds of gas and temperature and humidity at the same time

Detection range: CO(0 ~ 1000ppm), H2S(0 ~ 100ppm), O2(0 ~ 30%Vol), Ex(0 ~ 100%LEL), other ranges can be customized

Resolution: CO(0.1ppm), H2S(0.01ppm), O2(0.01%Vol), Ex(0.1%LEL), higher resolution can be customized

Detection principle: electrochemistry, catalytic combustion, infrared, thermal conductivity, PID photoion, according to the gas, range, site environment and user needs

Sensor life: electrochemical principle 2 ~ 3 years, oxygen 2 or 6 years optional, infrared principle 5 ~ 10 years, catalytic combustion 3 years, thermal conductivity 5 years

Temperature detection: -40℃~+120℃(optional), humidity detection: 0 ~ 100%RH (optional), resolution: temperature 0.1℃, humidity: 1%RH

Detection accuracy: ≤± 2%f.s (≤2% in the full range), temperature 0.5℃, humidity: 3%RH, higher accuracy can be customized

Working mode: fixed installation, online detection, diffusion measurement, pipeline, flow, pump type optional

Installation method: pipe type, wall hanging type. The working pressure of the pipeline is ±30% of atmospheric pressure, and the pressure reduction treatment is required beyond the range

Response time: T90≤20 seconds

Recovery time: ≤30 seconds

Output signal: bus RS485(RTU), optional three (four) wire system 4 ~ 20mA, 0 ~ 20mA, 1 ~ 5V, 0 ~ 5V, 0 ~ 10V, wireless transmission

Alarm mode: on-site audible and visual alarm (optional), default 1, optional 3 passive contact (dry node) output, three-level alarm, alarm point can be set

Working environment: -40℃ ~ +70℃

Sample temperature: – 40 ℃ ~ + 70 ℃ (regular), matching: – 40 ℃ ~ + 400 ℃ and 40 ℃ ~ + 800 ℃ (1300 ℃) * * *

Relative humidity: ≤10-95%RH (conventional) non-condensing occasions, optional: 10-99%RH for high temperature and high humidity occasions, when ordering

Need to indicate, need to be equipped with pretreatment system)

Operating voltage: 12~30V(DC DC, the standard power supply of a single device is 24V, 1A or greater than 1A DC switching power supply)

Power reference: 24V, 2.1A switching power supply can drive 40 toxic gas detectors, or 15 combustible, infrared gas detectors

Explosion-proof form: flameproof type ExdⅡCT6

Connection cable: 4~20mA select three core shielded cable, RS485 select four core, when the distance exceeds 1000 meters, a single wire diameter ≥1.5mm; The shield is grounded

Protection level: IP66 waterproof splash and short time rain, long time rain need to choose rainproof cover or choose the shell without display or indicate when ordering

Dimensions: 210×170×85mm

Weight: 1.8Kg

Optional accessories: wall mounting bracket, installation bracket fixed on the pipe (four points, six points), stainless steel thread welding base for pipe installation

(Need to indicate the pipe size, such as DN50, DN15…) Normal 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 memory card, rain cover,

24VDC or 220AC sampling pump (sampling distance is 10 meters), vacuum pump (sampling distance is greater than 40 meters), 24V switching power supply.

Accessories needed for computer monitoring: free upper computer software, RS485/RS232 converter, laptop without RS232 interface

The brain also needs a USB/RS232 conversion cable, and a TCP/IP converter is required for network transmission

Applications: petroleum, chemical, pharmaceutical, environmental protection, flue gas analysis, air treatment and other need to be fixed installation, online detection of gas concentration

occasion