Kolno VOC gas detector
MOT500 gas detector - fixed installation, detecting flammable and toxic gas leaks in industrial sites
Adopting a 2.4-inch industrial grade color screen, it can display real-time curves of gas concentration
Full software automatic calibration, sensor up to 6 levels of target point calibration function, ensuring accuracy and linearity of detection, and with data recovery function


Multiple signal outputs
4-20mA RS485、0-5V、0-10V
Multiple transmission methods available: 3-4 core cable, fiber optic cable, Ethernet cable, GPRS wireless transmission, RTU wireless transmission
Multiple data reception methods: user computer, control alarm PLC、DCS、 Mobile phones, tablets, etc

Meet the testing needs of different industries
• Adopting high-end original imported sensors from multiple countries
• Multiple varieties of sensors with long lifespan
• Includes technologies such as electrochemical, catalytic combustion, infrared, semiconductor, heat conduction, PID photoionization, etc
Optional infrared remote control, which can achieve cover free operation in dangerous situations
Technical Parameter
- Gas detection:Volatile organic gases (VOCs), imported high-performance PID photoionization sensor
- Measurement range:0-50, 500, 1000, 2000, 10000ppm optional
- resolving power:0.01ppm(0~50ppm); 0.1ppm(0~1000ppm); 1ppm (above 1000ppm)
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Response time:≤ 20 seconds (T90)
Detection accuracy:≤± 3% (depending on the specific sensor)
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Linear error:≤±1%
Zero drift:≤± 1% (F.S/year)
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Recovery time:≤ 20 seconds
Gas expansion:Supports 1-6 sensors (optional)
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Repeatability:≤±1%
Explosion proof certification:CNEx16.0547
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Protection level:IP66
Production License:Guangdong System (CMC Metrology Certification)
- Temperature and humidity:Optional accessories, temperature detection range: -40~120 ℃, humidity detection range: 0-100% RH
- Detection method:Diffusion, circulation, and pump suction options are available
- Installation method:Wall mounted, pipe mounted (thread size: M40X1.5mm)、 flow-through
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Signal output:
① 4-20mA signal: standard 16 bit precision 4-20mA output chip, transmission distance of 1km
② RS485 signal: using standard MODBUS RTU protocol, transmission distance of 2Km
③ Voltage signal: 0-5V, 0-10V output, customizable
④ Switching signal: comes standard with 2 sets of relays, passive contacts, and a capacity of 125VAC/0.3A 30VDC/1A -
Transmission method:
① Cable transmission: 3-core and 4-core cables for long-distance transmission (1-2 kilometers)
② TCP/IP transmission: Supports TCP/IP protocol, utilizing fiber optic and Ethernet cables for real-time transmission over long distances via internal and external networks (optional)
③ GPRS transmission: Equipped with a built-in GPRS module, real-time remote data transmission is possible without distance limitations (optional)
④ Wireless transmission: Supports 433MHz, wireless radio transmission mode, transmission distance 2-10Km, depending on different power levels (optional) - Receiving device:User computer, control alarm PLC、DCS、 Mobile phones, tablets, and other optional devices
- Alarm method:On site sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, SMS alarm optional
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Alarm settings:
① Standard configuration with two-level alarm
② The gas sensor can be set with two alarm modes: conventional high and low alarm, and interval control, which can control the concentration range of the gas - Shell material:Die cast aluminum+sandblasting oxidation/fluorocarbon paint, explosion-proof and corrosion-resistant
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Work environment:
Working temperature -30~50 ℃ (customized or optional pre-treatment system required for use in higher temperature and humidity environments)
Working humidity ≤ 95% RH, no condensation
Work pressure 90-110Kpa
Working power supply 24VDC (12-30VDC)
Electrical interface with 3/4 "NPT internal thread and 1/2" NPT internal thread, supporting two electrical connection methods simultaneously - Size and weight:196 * 162 * 70mm (L × W × H) 1.3Kg (net weight)
- Standard accessories:Instruction manual, certificate of conformity, calibration cover
- Optional accessories:Sound and light alarm, with storage, remote control, DC12V/24V adapter, USB/RS232 adapter, RS485/RS232 converter, sampling pump, flow meter, circulation chamber, etc
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Execution standards:
GB3836.1-2010 Explosive Atmosphere Part 1: General Requirements for Equipment
GB3836.2-2010 Explosive Atmosphere Part 2: Equipment Protected by Flameproof Enclosures "d"