Gas detector

Portable 4-in-1 toxic and harmful gas detector

First, portable four-in-one toxic and harmful gas detector overview

Portable four-in-one toxic and harmful gas detector is used for: rapid detection of a variety of gas concentrations and environmental temperature and humidity measurement, measurement exceeds the limit value, sound and light vibration alarm. 2.31 inch HD color screen real-time display, the use of well-known brands of gas sensors, the main detection principles are: electrochemistry, infrared, catalytic combustion, thermal conductivity, PID photoion and so on. Advanced circuit design, mature kernel algorithm processing, unique shape design, has obtained a number of software works and appearance patents. Suitable for detecting gas concentrations in pipelines or confined Spaces and atmospheric environments; Gas leaks or various background gases are nitrogen or oxygen with a high concentration of single gas purity. More than 500 kinds of gases are detected.

Second, portable four-in-one toxic and harmful gas detector product features

★ Can detect 1 ~ 4 kinds of gas at the same time, the unit is free to switch

The unit can be PPM, mg/m3, Vol%, LEL%, PPHM, ppb, or mg/L.

★ Built-in pump suction measurement, integrated water vapor, dust filter, prevent damage due to water vapor and dust sensors and instruments, can be used in high humidity, high dust environment response quickly; Special gas path design, sampling distance is greater than 10 meters, optional accessories can detect negative pressure or positive pressure -0.5 ~ 2 kg of gas

★ Rich man-machine interface

2.31 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 (capacity can be customized), support a variety of storage methods, optional RS485 communication

The standard data storage capacity of 100,000 pieces; Support real-time storage, timing storage, or only store alarm concentration data; Support local view, delete data, and via USB interface to the computer 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 400 degrees. Higher temperature gas detection can be customized.

★ Three display modes can be switched

The concentration of four gases is displayed at the same time, and the concentration of single-channel gas is displayed in large font circulation, and the real-time curve is displayed.

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

● Data recovery function, in case of misoperation can select partial or full recovery

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

● Standard USB charging interface, with charging protection function, support USB hot swap, charging state instrument can work normally

● Using 4600mA high-capacity rechargeable polymer battery, can work continuously for a long time

● High precision temperature and humidity measurement (optional)

● Support real-time detection or timing detection, long press “ Menu ” Key for 5 seconds to turn the pump off or on

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

Including sound and light alarm, vibration 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 target points to ensure measurement linearity and accuracy

● English and Chinese interface is optional

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

● Log recording

Record calibration logs, maintenance logs, troubleshooting countermeasures, sensor expiration reminders, and reminder of the next concentration calibration time.

● Meet the requirements of intrinsic safety circuit design, anti-static, anti-electromagnetic interference.

● Protection level up to IP65, waterproof splash, dustproof, explosion-proof, shock-proof.

Three, portable four-in-one toxic and harmful gas detector technical parameters

Detection of toxic gases, oxygen, carbon dioxide, flammable and explosive gases, TVOC, etc.

1 ~ 4 kinds of gas can be combined at will.

Optional: Temperature and humidity measurement.

Applications Petroleum, chemical industry, medicine, environmental protection, gas distribution, storage, gas analysis, air treatment and other need to portable rapid detection of gas concentration occasions.

Detection range 0 ~ 1, 10, 100, 1000, 5000, 50000, 100000ppm, 200 mg/L, 100%LEL, 20%, 50%, 100%Vol optional, other ranges can be customized.

Resolution 0.01ppm or 0.001ppm (0 ~ 10 ppm);

0.01ppm (0 ~ 100 ppm),

0.1ppm (0 ~ 1000 ppm),

1ppm (0 ~ 1000 ppm or more),

0.01 mg/L (0 ~ 200% mg/L),

0.1%LEL,

0.01%Vol,

0.001%Vol.

Detection principle Electrochemistry, catalytic combustion, infrared, thermal conductivity, PID photoion, etc., according to the gas type, range, site environment and user needs.

Maximum permissible

Error value ≤ ± 3%F.S (Higher precision can be customized)

Linearity ≤ ± 2%

Response time T90≤ 30 seconds repeatability ≤ ± 2% uncertainty ≤ ± 2%

Working temperature: -40℃ ~ +70℃, humidity: ≤ 10 ~ 95%RH, built-in filter can be used in high humidity or high dust environment recovery time ≤ 30 seconds

Sample temperature -40℃~+70℃, optional high temperature sampling and cooling filter handle, can detect the smoke concentration of 400 degrees or higher temperature

Temperature and humidity measurement options: temperature -40℃~+70℃, accuracy 0.5℃; Humidity 0 ~ 100%RH, accuracy 3%RH

Working power supply 3.7VDC, 4600mAh large capacity rechargeable polymer battery

Display mode 2.31 inch HD color screen

Alarm volume 90 ~ 120 dB.

Detection method Built-in pump suction measurement, flow rate 500 ml/min. The calibrated flow rate should be greater than 500 ml/min, and the tee pipe should be connected for shunt to ensure that excess gas is discharged from the bypass

Alarm mode acousto-optic alarm, vibration alarm, acousto-optic + vibration alarm, close alarm can be set

Communication port USB (charging and communication), RS485 communication port is optional

Data store The standard capacity is 100,000 data stores

Protection class IP65

Explosion-proof type Intrinsically safe

Explosion-proof mark Exia IIC T4 Ga

Implement standard GB 15322.3-2019 "Portable Combustible gas sensor with measurement range of 0-100%LEL"

1. 2010 General Requirements for Electrical Equipment for Explosive Gas Environments

1. 2010 "Electrical Equipment for Explosive gas environment intrinsically safe “i”"

Appearance size 178× 67× 40mm(L× W× H)

Weight 300g

Standard accessory manual, certificate, warranty card, USB charger (including data cable), high-grade aluminum alloy instrument box, back clip, humidity dust filter

Optional items Temperature and humidity measurement function, 1.2m flexible sampling handle (1-10m hose, standard length 1 m), 0.4m stainless steel sampling handle (with dust filter, non-retractable), high temperature sampling and cooling filter handle, high temperature and humidity pretreatment system, multiple humidity dust filters, lrope, optical disc (PC communication software)