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OEM Portable Gas Detector Pen Shield JLY-50A Series Suppliers, Factory
Product Description
Special Functions & Overview
Special Functions
- Powered by 3V batteries (two AA batteries)
- The sensor unit is equipped with built-in temperature compensation and calibration coefficients, featuring high precision and good linearity
- Point; It can provide outstanding stability and response recovery speed
- The LCD displays the measured value of gas concentration, accompanied by two-pole alarm color prompts
- It is equipped with simple calibration, automatic verification and zeroing, as well as automatic compensation programs
- Anti-radiation/electromagnetic interference, reducing false alarms
- The buzzer alarm indicates two levels of concentration alarm
- The LCD indicates that the battery status needs to be replaced
- Miniaturized design, economical and practical, convenient for use and maintenance
Leak Detector Structure
The device mainly consists of components such as the casing, circuit board, battery, display screen, and sensors.
Working Principle
Catalytic combustion type.
Technical Parameters
| Parameter | Specification |
|---|---|
| Measure gas | Flammable EX (calibrated with methane CH4) |
| Measurement range | 0~10000PPM |
| Preheating time | <1 minute |
| Response time | ≤30 seconds |
| Indication mode | LCD screen displays power supply, concentration, alarm information and sound alarm |
| Shell material | ABS |
| Explosion-proof mark | Exib IIB T3 Gb |
| Alarm threshold | Underreporting: approximately 2000PPM；High report: Approximately 4000PPM |
| Sensor lifespan | Five years |
| Sensor drift | Every half a year；Zero point <2%FS, sensitivity <3%FS |
| Working environment | -10~55°C; <95%RH |
| Battery voltage | DC 3V (two replaceable AA batteries) |
| Equipment size | 162*25*21mm |
| Standby time | About 2 hours |
| Equipment weight | About 38 grams |
Storage, Accessories & Custom Gas Detection
Storage
The detector should be stored in a ventilated room with an ambient temperature of -10°C to 55°C and a relative humidity not exceeding 85%RH. The air should not contain harmful gases or impurities that could corrode the detector.
Accessories and Others
- One combustible gas leak detector;
- Two No. 7 batteries;
- One instruction manual.
Appendix: Custom Detectable Gases
(Custom instruments can be configured to detect gases listed in the table below)
| Detecting Gas | Normal Range | Selectable Range | Resolution | Low Alarm | High Alarm |
|---|---|---|---|---|---|
| Oxygen | 0-30%VOL | 0-30%VOL | 0.1%VOL | 19.5 | 23.5 |
| Methane | 0-4%VOL | 0-4%VOL | 0.01%VOL | 1 | 2.5 |
| Carbon monoxide | 0-1000PPM | 0-2000/5000PPM | 1PPM | 50 | 200 |
| Hydrogen sulfide | 0-100PPM | 0-50/200/1000PPM | 1/0.1PPM | 10 | 20 |
| Flammable gas | 0-100%LEL | 0-100%LEL | 1%LEL | 20 | 50 |
| Ammonia | 0-100PPM | 0-50/500/1000PPM | 1/0.1PPM | 20 | 50 |
| Hydrogen gas | 0-1000PPM | 0-40000PPM | 1/0.1PPM | 200 | 500 |
| Chlorine gas | 0-20PPM | 0-100/150PPM | 1/0.1PPM | 5 | 10 |
| Hydrogen chloride | 0-20PPM | 0-20/150PPM | 1/0.1PPM | 5 | 10 |
| Sulfur dioxide | 0-20PPM | 0-50/100PPM | 1/0.1PPM | 5 | 10 |
| Nitric oxide | 0-250PPM | 0-500/1000PPM | 1/0.1PPM | 20 | 125 |
| Phosphine | 0-20PPM | 0-20PPM | 1PPM | 5 | 10 |
| Hydrogen cyanide | 0-20PPM | 0-20PPM | 1PPM | 10 | 25 |
| Acetylene | 0-100PPM | 0-100PPM | 1PPM | 20 | 50 |
| Ethylene oxide | 0-100PPM | 0-100PPM | 1PPM | 20 | 50 |
| Ozone | 0-100PPM | 0-20/100PPM | 0.1PPM | 20 | 50 |
| Formaldehyde | 0-40PPM | 0-50/100PPM | 1/0.1PPM | 8 | 20 |
| Benzene | 0-1000PPM | 0-1000PPM | 1PPM | 200 | 500 |
| Toluene | 0-1000PPM | 0-1000PPM | 1PPM | 200 | 500 |
| Xylene | 0-1000PPM | 0-1000PPM | 1PPM | 200 | 500 |
| VOC | 0-1000PPM | 0-1000PPM | 1PPM | 200 | 500 |
| Vinyl chloride | 0-250PPM | 0-250PPM | 1PPM | 50 | 125 |
| Methanol | 0-30PPM | 0-30PPM | 1PPM | 6 | 15 |
| Isobutene | 0-90PPM | 0-90PPM | 1PPM | 18 | 45 |
| Ethanol | 0-80PPM | 0-80PPM | 1PPM | 16 | 40 |
Note: The detection range of customized instruments is subject to the actual instruments delivered. For gases not listed, please contact the manufacturer.
Frequently Asked Questions
What is the working principle of this gas leak detector?
The device operates on a catalytic combustion type sensor mechanism designed specifically for reliable and sensitive detection of combustible gases.
What type of batteries does the device use and how long is the runtime?
The unit operates on 3V DC power supplied by two replaceable standard batteries, offering approximately 2 hours of continuous standby working time.
How does the instrument alert users to gas leaks?
It features a two-level concentration alarm indicated visually through the LCD screen's color cues and audibly via a built-in buzzer alert.
What are the optimal storage conditions for the device?
It should be kept in a well-ventilated room with temperatures between -10°C and 55°C, relative humidity under 85%RH, and in an atmosphere free from corrosive chemicals or gases.
Can this detector be customized to detect other gases besides flammable EX?
Yes, custom instruments can be configured to detect a wide variety of gases including Oxygen, CO, H2S, Ammonia, VOCs, Benzene, and many others listed in the appendix specifications.
