Portable Pump Diffusion Gas Detector

• Customization: Available
• After-sales Service: Whole Life Technical Support
• Warranty: One Year
• Model NO.: MS104K-M
• Detect Gas: 1-4 Types of Gases (Carbon Monoxide Co, Hydrogen S
• Application Occasions: Petroleum, Chemical Industry, Medicine, Environmen
• Detection Principle: Electrochemistry, Catalytic Combustion, Infrared,
• Sensor Life: 2 to 3 Years for Electrochemical Principles , 5 to
• Working Power: 7.4 VDC, 1400mAh Large Capacity Rechargeable Polym
• Display: 2-Inch LCD Display
• Detection Method: Diffusion/Pumping Type, Standard Configuration: Ex
• Alarm Mode: Sound and Light Alarm , Vibration Alarm, Sound and
• Communication Interface: Standard Type-C Fast Charging and Communication, E
• Data Storage: Standard Data Storage Capacity Is No Less Than 200
• Protection Level: IP6 8
• Explosion-Proof Type: Intrinsically Safe
• Explosion-Proof Signs: Exia Iic T 4ga
• Weight: About 380g
• Standard Accessories: Instructions, Certificate, Warranty Card, USB Char
• Transport Package: Wooden Case
• Specification: 90 × 70 × 38mm (L× W× H)
• Trademark: J&X
• Origin: China
• HS Code: 902710090
• Production Capacity: 300pieces/Month

Product Description

Portable Pump Diffusion Gas Detector

Product Description

 

Portable gas detectors are essential tools designed to quickly and accurately identify gas leaks or trigger alarms when gas concentrations exceed safe levels. They operate based on various detection principles, including electrochemical sensors, infrared technology, catalytic combustion, thermal conductivity, and PID (photoionization detection). These devices are widely used across a range of industries and scenarios, such as fire protection, emergency rescue, confined spaces, oil and gas, chemical processing, metallurgy, refining, warehousing, pharmaceuticals, environmental monitoring, and air quality management.

 

Product Features

 

• Multi-Gas Detection: Can detect 1 to 4 gases simultaneously (depending on the specific product).

• Measurement Units: Supports optional units such as μmol/mol, PPM, mg/m³, %Vol, and %LEL.

• Measurement Methods: Diffusion or pump-based measurement, with an external pump seamlessly integrated into the instrument.

• Fall Alarm: Equipped with a fall detection alarm for enhanced safety.

• Data Storage:

  • Standard storage capacity: at least 200,000 records (customizable for larger storage).
  • Supports multiple storage methods: real-time storage, scheduled storage, or alarm-only storage.
  • Allows local viewing and deletion of data. Data can be uploaded via USB for analysis or printing.

• Battery: Powered by a 1400 mAh rechargeable polymer lithium battery.

• Data Recovery: Misoperation recovery function allows restoration of partial or full factory data.

• Customizable Display: Users can choose to display maximum, minimum, or weighted average values.

• Alarm Settings:

  • Multiple alarm modes: sound, light, and vibration.
  • Alarm types: concentration, under-voltage, fault, and pump clogging.
  • Alarm thresholds: low, high, interval, and TWA/STEL alarms.

• Smart Features:

  • Misoperation recognition: Prevents calibration errors caused by human factors.
  • Automatic zero-point tracking: Ensures zero-point drift does not affect long-term use.
  • Multi-level calibration: Ensures measurement linearity and accuracy.

• User Interface: Supports both Chinese and English interfaces.

• Environmental Adaptability:

  • Operating temperature: -20°C to +55°C (typical) and -40°C to +70°C (limit).
  • Equipped with temperature compensation.

• Additional Features:

  • Sensor life expiration reminder and calibration time notification.
  • Intrinsically safe circuit design, with anti-static and anti-electromagnetic interference capabilities.
  • Protection rating: IP68 (rain-proof, immersion-proof, dust-proof, and corrosion-resistant)

Product Parameters

 

Detect gas	1-4 types of gases (carbon monoxide CO, hydrogen sulfide H2S, oxygen O2, flammable gas Ex, carbon dioxide CO2, VOC , etc.) Depends on site environment and user needs
Application occasions	Petroleum, chemical industry, medicine, environmental protection, gas distribution, warehousing, flue gas analysis, air treatment and other occasions that require portable and rapid detection of gas concentration.
Detection range	0~1, 10, 100, 1000, 5 000, 5 0000 , 100000 ppm, 100% LEL, 20% , 50%, 100% Vol are optional, other ranges can be customized .
Resolution	0.01ppm or 0.001ppm (0~10 ppm); 0.01ppm (0~100ppm); 0.1ppm (0~1000ppm); 1ppm (0~1000 ppm and above); 0.1%LEL ; 0.01%Vol; 0.001 %Vol;
Detection principle	Electrochemistry, catalytic combustion, infrared, thermal conductivity, PID photoionization , etc. , depending on gas type, range, on-site environment and user needs.
Sensor life	2 to 3 years for electrochemical principles , 5 to 10 years for infrared principles , 3 years for catalytic combustion, 5 years for thermal conductivity , and 2 to 3 years for PID photo ions .
Accuracy	≤± 3 %FS (higher accuracy can be customized)
Response time	T90 ≤ 3 0 seconds
Recovery Time	≤ 3 0 seconds
working environment	Temperature: -20 ~ +55 ºC ( typical value) -40 ~ +70 ºC ( limit value) , humidity: 10 ~ 95 %RH (normal) non-condensing conditions
Temperature & humidity	Optional: temperature - 40 ºC~+ 120 ºC , accuracy 0.5 ºC ; humidity 0 ~ 100 %RH , accuracy 3 %RH
Working power	7.4 VDC, 1400mAh large capacity rechargeable polymer lithium battery
Display	2-inch LCD display
Detection method	Diffusion/pumping type, standard configuration: external pump
Alarm mode	Sound and light alarm , vibration alarm, sound and light + vibration alarm, and shutdown alarm can be set
Communication Interface	Standard Type-C fast charging and communication, equipped with charging base
Data storage	Standard data storage capacity is no less than 200,000 pieces (larger capacity can be customized)
Protection level	IP68
Explosion-proof type	intrinsically safe
Explosion-proof signs	Exia IIC T 4Ga
Implementation standards	GB 15322.3-2019 " Combustible Gas Detectors Part 3: Portable Combustible Gas Detectors for Industrial and Commercial Use " GB T50493-2019 " Design Standard for Detection and Alarm of Combustible and Toxic Gases in Petrochemical Industry " GB 12358-2006 "General technical requirements for ambient gas detection and alarm devices in workplaces" GB 3836.1-20 21 "General Requirements for Electrical Equipment for Explosive Gas Environments" GB 3836.4-20 21 "Intrinsic safety type "i" of electrical equipment for use in explosive gas environments"
Dimensions	90 × 70 × 38mm (L×W×H)
Weight	About 380g
Standard accessories	Instructions, certificate, warranty card, USB charger (including data cable) , charging base, instrument case , external pump (calibration cover), 1 filter
Options	Optional multiple filters, 0.4m stainless steel sampling

Common faults and solutions

 

Fault 1: Unable to Detect at Low Concentrations

Solutions:

1. Confirm whether the target gas is present at the site.
2. Perform zero-point calibration by using nitrogen gas or clean air. Test immediately after calibration.
3. If the issue persists after zero-point calibration, restore the factory settings.
4. Repeat the calibration process with nitrogen or clean air if detection still fails after restoring factory settings.
5. If the above steps do not resolve the issue, contact the manufacturer's after-sales support.

 

Fault 2: Fluctuating or Randomly Jumping Values in the Air Without the Target Gas

Solutions:

1. Check for temperature and humidity fluctuations at the site, as these can cause temporary instability in readings. Once stabilized, the values should return to normal.
2. Verify whether zero-point or target-point calibration was performed in the presence of target gas. Factory reset can resolve issues caused by incorrect calibration values.
3. If high-concentration gas has impacted the sensor, power on the instrument and allow it to age for 24 hours. If values remain unstable, the sensor may be damaged and require replacement.

 

Fault 3: Inaccurate Detection

Solutions:

1. Confirm the actual concentration of the target gas on site. To ensure accuracy, use standard gas for verification or send the instrument to a third-party testing agency.
2. Check the sensor's condition. Long-term use may cause errors in readings. If the sensor is nearing the end of its service life, replacing it is recommended for optimal performance.

 

Fault 4: Alarms Triggered When the Value is Zero or Below the Alarm Threshold

Solutions:

1. Verify whether the alarm threshold has been modified.
2. Check the alarm settings, including the mode and type of alarm.
3. Identify whether the alarm is a concentration alarm or a fault alarm:
   • Concentration Alarm: Displays "AL" or "AH" and flashes a red indicator.
   • Fault Alarm: Activates a yellow light.
4. If the alarm is caused by incorrect settings, restore the factory settings. For fault alarms, inspect for issues such as short circuits, open circuits, poor contact, or sensor failure. If unresolved, send the device to the manufacturer for inspection.

 

Fault 5: Unable to Communicate with the Computer

Solutions:

1. Ensure the device address matches the address set in the communication software.
2. Check the serial port in the computer's Hardware-Device Manager-Port section. For USB interfaces, confirm the correct port number and default baud rate (9600).

 

Fault 6: No Data Records Found in Query

Solutions:

1. Verify that the storage function is turned on (refer to Chapter 7 of the user manual for storage settings).
2. If the storage function is enabled but no records appear, ensure data recording was initiated. Perform the following steps:
   • Navigate to Data Recording > Data Deletion to reset data recording. Wait 15 minutes and check again.
3. Confirm that the start and end times for the query match the measurement period. Ensure the instrument's internal clock is accurate and properly synchronized.
4. If the system time is incorrect, the mainboard may need repair. Return the instrument to the factory for servicing.

Company Profile

 

We focus on the market, prioritize quality, drive continuous innovation, master core technologies, and serve our customers with dedication. The company is equipped with the necessary detection equipment and technical capabilities to produce high-quality gas detection instruments, demonstrating professionalism and commitment. With a strong reputation in the gas detection field and high customer recognition, we provide reliable support for pre-sales consultation and after-sales service.

Our product development, design, and research are aligned with market demands as well as quality and technical standards. The instruments feature elegant designs, stable detection performance, and explosion-proof configurations, suitable for both fixed gas detectors and portable devices. Thanks to our consistent product quality, we have obtained national licenses for manufacturing measuring instruments, national explosion-proof electrical product certifications, and qualifications for the installation and maintenance of explosion-proof electrical equipment.

Guided by the service philosophy of "perfection, efficiency, and innovation," we are committed to offering society and enterprises safe and reliable solutions to ensure stable production and secure everyday life.

 

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