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Carbon monoxide detector SC910

Author: source: Release date: 2017-01-19

Carbon monoxide detector SC910

Product parameters

Carbon monoxide is a toxic gas. Mystone SC910 carbon monoxide detector alarm uses imported carbon monoxide sensors, with high-precision measurement of PPM level, stability, strong anti-interference ability, fast response, long life, sound and light alarm function, upper and lower limit alarm. The value can be set arbitrarily, and the zero point and any target point can be calibrated, and the operation is simple.
Medical scientific research, school scientific research, pharmaceutical production workshop, tobacco company, environmental testing, building construction, fire alarm, sewage treatment, petroleum and petrochemical, chemical plant, smelter, steel plant, coal plant, thermal power plant, boiler room, gas station, garbage Treatment plants, tunnel construction, oil pipelines, aerospace, industrial gas process control, indoor air quality testing, underground gas pipeline maintenance, safety protection for hazardous locations, military equipment testing, etc.
The SC910 point type carbon monoxide (CO) detector uses an advanced microprocessor as the control unit. It has a fast response speed and a long average trouble-free operation time, which is suitable for long-term uninterrupted operation. At the same time, it automatically adds probe fault detection and uploads alarm control The alarm performance of the SC910 point-type carbon monoxide (CO) detector conforms to national standards, has passed the inspection by the National Fire Safety Electronic Product Quality Supervision and Inspection Center, and obtained the type approval certificate issued by the National Fire Safety Product Quality Certification Committee. Its structure is flameproof, and its design complies with national standards. It is qualified by the National Explosion-proof Electrical Product Quality Supervision and Inspection Center, and the explosion-proof mark is dIIcT6.
Sensing principle Catalytic combustion
Sampling method Natural diffusion
Induction gas CO
Operating Voltage DC24V
Use voltage range DC18V ~ DC28V
Wire 4-20MA communication protocol
temperature -40 ℃ ~ + 70 ℃
Relative humidity ≤93% RH
Explosion-proof mode Flameproof
Explosion-proof grade ExdIIBT6
stability Working alarm concentration error is not greater than ± 3% LEL
Repeatability Repeated test alarm concentration error is not greater than ± 3% LEL
Alarm concentration error Not more than ± 3% LEL
Implementation standards GB15322.1-2003
<> 1. Detector installation position <>
  • A. The installation height of the detector is determined by the weight ratio of the type of gas being measured.
  • The specific gravity of the measured gas is less than air, and the detector is generally installed 30cm from the ceiling;
  • If the ceiling is high (above 5 meters), it should be installed at an appropriate height depending on the speed of gas leakage. The measured gas has a larger specific gravity than air, and the detector is installed at a distance of 30cm ~ 50cm from the ground (referring to the probe);
  • B. The installation position of the detector is determined by the source of the gas leak and the structure of the place.
  • First determine the area of the monitored location and leak-prone points, so as to determine the number of detectors installed. In general, the detection range of the detector is 7.5 meters in the indoor radius; 15 meters in the outdoor radius; the linear distance between the detector and the release source is 5 ~ 7.5 meters. (Recommended installation radius of 1-2 meters in hazardous locations)
Maintenance guide
  • 1. Do not spray insecticide, qualitative hair spray, paint adhesive, thinner alcohol and other flammable and explosive substances on the sensor head.
  • 2. Do not apply paint or other substances to the surface of the explosion-proof net of the sensor module, so as to avoid volatile substances affecting the life of the detector and hindering the diffusion of gas.
  • 3. Do not place in or near the exhaust pipe or chimney.
  • 4. Do not place in places with high temperature and machine overtime.
  • 5. If a failure occurs, do not disassemble and repair it by yourself, you can notify the supplier or agent to deal with it.

Precautions

  • 1. Detectors stored in a temperature below 0 ° C should be placed in a room temperature environment for more than 2 hours before being powered on.
  • 2. Detectors that have not been used for a long time should be used normally after being warmed up for 2 hours.
  • 3. Pay attention to rain, moisture and strong vibration and impact during transportation.
  • 4. The installation of the detector must be performed by professionals: the detector should not be installed close to the wall, and sufficient space should be left around for routine maintenance and troubleshooting. Monitoring specific gravity is less than air
  • When combustible gas is used, the detector should be installed at a distance of 0.3 meters from the ceiling. When monitoring combustible gas with a larger specific gravity than air, the detector should be installed at a distance of 0.3 meters from the ground.
  • 5. The detection range of the detector in the specific environment is related to many factors, such as the type of gas being detected, the wind direction and wind speed in the detection environment. The recommended detection range is 6 × 6 square meters in space and 6 meters in length.
  • 6. In new buildings, the detector should be installed after painting and welding work is completed.
  • 7. Do not install the detector near steam or oil.
  • 8. Do not immerse the detector in water or other liquids.
  • 9. Do not use irritating substances such as pesticides, paints, and large amounts of alcohol near the detector to avoid false alarms.
  • 10. Avoid frequent high concentration flammable gas shock sensors during use.
  • 11. The service life of the sensor is 5 years under normal conditions. Improper installation, use or the influence of bad environment will reduce the sensitivity of the sensor and shorten its service life.
Gases and vapors Ignition temperature ℃ Specific gravity of gas (air = 1)
Lower limit VOL% VOL%
hydrogen 560 4.0 75.6 0.07
Methane 537 5.0 15 0.55
Ethane 515 3.0 15.5 1.04
Propane 260 2.1 9.5 2.50
Isobutane 555 1.8 8.0 2.01
Pentane 470 1.4 7.8 1.56
Hexane 455 1.1 7.5 1.11
Acetylene 305 2.5 100 0.9
Ethylene 425 2.7 36 0.97
Acrylic 430 2.0 11.1 3.45
Toluene 535 1.2 7.1 3.18
benzene 365 1.3 7.1 2.05
O-xylene 465 1.0 6.0 3.66
Methanol 233 6.7 36 2.79
Ethanol 425 3.3 19 1.59
Methyl acetate 475 3.1 16 2.56
Ethyl acetate 460 2.2 11.0 3.04
gasoline 260 1.1 5.9 3-4
kerosene 210 0.6 5 4.50
natural gas 3.8 13 <1
City gas 4 30 <1
liquefied petroleum gas 1.0 15 1.5-2.0
Hydrogen sulfide 4.3 45.5 1.19
Carbon monoxide 605 12.5 74 0.97
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