Portable composite gas detector
The portable composite gas detector is used for the need to quickly and accurately detect the concentration and temperature and humidity of a variety of gases in the field and alarm exceeding the standard. Portable composite gas detector adopts 2.5-inch HD color screen to display the concentration in real time. It selects the most famous brand of electrochemical or infrared, catalytic combustion, thermal conductivity, PID photoion principle gas sensor, Swiss high-precision capacitive digital temperature and humidity sensor, advanced circuit design, mature core algorithm processing. Obtained a number of software work patents and appearance patents. It can detect the gas concentration in the pipeline or confined space, atmospheric environment can also detect gas leakage, detect more than 500 types of gas, and can also detect a variety of background gas for nitrogen or oxygen high concentration of single gas purity.
Features:
1．Completely waterproof, dustproof, explosion-proof, shock-proof, intrinsic safety circuit design, anti-static, anti-electromagnetic interference,
2．Passed national standard test and CMC measuring instruments production license certification
3．Protection level IP67, can prevent rain and short time soaking, built-in replaceable water vapor, dust filter,
4．It can be used in high humidity and high dust situations without damaging sensors and instruments
5．Built-in pump suction measurement, integrated water vapor, dust filter, optional professional accessories for high temperature, high humidity, high dust environment, rapid response; Special road design, sampling distance is higher than 10 meters.
6．HD 2.5-inch color screen displays real-time concentration, alarm, time, temperature, humidity, storage, communication, printing,
7．Electricity, charging status and other information, the menu interface uses high-definition simulation ICONS to display the function name of each menu
8．Large capacity data storage function, standard with 100,000 data storage capacity, larger capacity can be customized. optional
9．SD card storage function, support real-time storage, timing storage or only store alarm concentration data and time, support
10．The machine can view and delete data, and the data can also be uploaded through USB, Bluetooth communication, RS232 interface
11．Computer, computer software analysis data and storage, printing. Support for remote wireless transmission (optional)
12．Bluetooth communication interface (optional), USB interface, RS232 interface automatic recognition, optional external micro wireless
13．Bluetooth printer, print: company name, gas name, date and time, ambient temperature and humidity, concentration data, test results (whether qualified)
14．USB charging interface, can be charged by computer or power bank, compatible with mobile phone charger, overcharge, overdischarge, overvoltage, short circuit, overheat protection, 5 level precision
15．Quasi-power display, support USB hot swap, the detector can work normally when charging
16．Using 6000mAH high-capacity rechargeable polymer battery, can work continuously for a long time
17．Sound and light alarm, vibration alarm, visual alarm, undervoltage alarm, fault alarm, fall alarm (optional)
18．Alarm value can be set, alarm mode can be selected low alarm, high alarm, interval alarm, weighted average alarm
19．High precision temperature and humidity measurement (optional), and temperature compensation for the sensor, the instrument uses a temperature range of -40 ~ 70 degrees, can detect 1300 degrees of gas (optional high temperature sampling and cooling filter handle or high temperature and humidity pretreatment system)
20．Can be real-time detection or timing detection (for the amount of measured gas is relatively small), the pump can be turned off to extend the startup time when not detected.
21．Can detect 6 ~ 8 kinds of gas at the same time, the unit is free to switch, conventional gas does not need to input molecular weight, special gas needs to input molecular weight automatically
22．The unit can be PPM, mg/m3, Vol%, LEL%, PPHM, ppb, or mg/L
23．Three display modes can be switched: display six gas concentrations at the same time, large font circulation display single-channel gas concentration, real-time curve, each channel

24．Between the automatic cycle or manual cycle can be switched, you can set whether to display the maximum value, minimum value, gas name, you can view the history curve.
25．Chinese and English interface can be switched, the default Chinese interface, simple Chinese or English operation tips, users of all ages can easily operate
26．Data recovery function, optional recovery or full recovery. Concentration calibration misoperation is automatically identified and prevented to avoid bad human factors.
27．Zero automatic tracking, multi-stage calibration of target point, perfect measurement linearity and accuracy. It can meet the national standard and the local metrology bureau standard
28．Can record calibration log, maintenance log, troubleshooting countermeasures, sensor life expiration reminder, the next concentration calibration time reminder function
Technical parameters:

Detection gas: composite gas (carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, combustible gas Ex, carbon dioxide CO2, nitrogen oxide NOX),

Optional: Can detect any 6 kinds of gas concentration and temperature and humidity, up to 8 kinds of gas, depending on the sensor and the field environment

Detection range: CO(0 ~ 1000ppm), H2S(0 ~ 100ppm), O2(0 ~ 30%Vol), Ex(0 ~ 100%LEL), CO2(0 ~ 5000ppm),

NOX(0 ~ 1000ppm), other ranges can be customized

Resolution: CO(0.1ppm), H2S(0.01ppm), O2(0.01%Vol), Ex(0.1%LEL), CO2(1ppm),

NOX(0.1ppm), 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

Detection method: Built-in pump suction, flow rate of 500 ml/min

Display mode: 2.5-inch 320X240 HD color display,8 button operation

Detection accuracy: ≤±1%(F.S)

Linearity: ≤±1%

Repeatability: ≤±1%

Alarm mode: sound and light alarm, vibration alarm, visual alarm, sound and light + vibration + visual alarm, close alarm

Response time: T90≤20 seconds

Recovery time: ≤30 seconds

Power supply: DC3.7V

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

Operating environment: temperature -40℃~+70℃; Relative humidity ≤0-99%RH(built-in filter can be used in high humidity or high dust environment)

Sample temperature: -40℃~+70℃, optional high temperature sampling and cooling filter handle or high temperature and high humidity pretreatment system can detect the smoke concentration at 1300℃

Temperature measurement: -40℃~+70℃(optional) Accuracy 0.3℃

Humidity measurement: 0-100%RH(optional) Accuracy 2%RH

Battery capacity: DC3.7V,6000mAH large capacity rechargeable polymer battery, with overcharge, overdischarge, overvoltage, overheating, short circuit protection

Data storage: Standard capacity 100,000 data, support SD card storage, unlimited capacity, support local view, delete or data export,

Free communication software for upper computer, storage function is off by default, can be set to open, storage interval can be set arbitrarily

Communication interface: USB(charging and communication), other optional interface RS232, Bluetooth communication, GPRS wireless transmission, automatic identification

Printer: Optional, external micro wireless Bluetooth printer

Explosion-proof type: intrinsically safe

Explosion-proof mark: Exia II CT4

Protection level: IP67, rain and short time soaking, dust

Size: 195×77×46mm(L×W×H)

Weight: 350g

Standard accessories: manual, certificate, warranty card, USB charger (including data cable), crocodile clip, lanyard, high-grade aluminum alloy instrument box,

CD (PC communication software), 1 humidity dust filter

Optional accessories: 0.9m adjustable sampling handle (standard length 1 m), temperature and humidity measurement function, external micro wireless Bluetooth printer, high temperature

Sampling and cooling filter handle, high temperature and high humidity pretreatment system, multiple humidity dust filters, SD card storage, wireless data communication