- Week technology ltd
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Shenzhen, Guangdong, China
- Main products: Gas Sensor, Temperature Sensor, Humidity Sensor, Pressure Sensor, Ultrasonic Sensor, UV Sensor, Wind Speed sensor, Liquid Level Sensor
Home > Products > Gas sensor > CH-D3 Miniature Size Combustible Gas Pellistor
CH-D3 Miniature Size Combustible Gas Pellistor
USD $40 - $120
/ Piece
1 Piece(Min.Order)
- 1000 Piece / Pieces per Month
- HK
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Product Details
| Brand Name | Alphasense | Place of Origin | United Kingdom | |
| Model Number | CH-D3 | Usage | Gas Sensor | |
| Theory | Other, Combustible Gas Sensor | Output | Analog Sensor |
Product Description
CH-D3 Combustible Gas Pellistor Description
Alphasense flammable gas pellistors are available in two housing sizes: A for fixed installation applications and A or D for portable applications.
The innovative design of the Alphasense pellistor range provides high quality, low power (only 190mW) and excellent poison resistance. All pellistors are housed in certified flameproof chambers.
CH-D3, with the same good stability and high poison resistance of the CH-A3, is a unique miniature size, only 11.5mm height and 15mm diameter, complementing the existing Alphasense D sensor family.
The CH-D3 has full ATEX, IECEx, UL and CSA certification from -40°C to +50°C at 1.25W, optimising portable gas detector battery life with a shock-proof design.
| CH-D3 Combustible Gas Pellistor PERFORMANCE | ||
| Sensitivity | mV / % methane | 10 to 17 |
| Response time | t90 from air to 50% LEL methane (s) | <12 |
| Zero | mV in zero air | ±25 |
| Range | % LEL methane | 0 to 100 |
| Linearity | % methane when 5% non-linear | 6 |
| CH-D3 Combustible Gas Pellistor ENVIRONMENTAL | ||
| Sensitivity @ -20℃ | % sensitivity change, referenced to 20°C | 101.5 to 104.5 |
| Sensitivity @ 50℃ | % sensitivity change, referenced to 20°C | 101.5 to 103 |
| Zero @ -20℃ | % LEL change, referenced to 20°C | < ±2 |
| Zero @ 50℃ | % LEL change, referenced to 20°C | <+0.5 to -1.5 |
| Temperature Range | Certification to T4 | -40° to 50°C |
| Humidity | 12% sensitivity loss from 0 % to 80 % rh (22°C) Typical zero increase % LEL from 0 to 80 %rh (22°C) | <1.0 |
| Pressure | Sensitivity change from 0 to 75 kPa (gauge) | <3% |
| CH-D3 Combustible Gas Pellistor INHIBITION/POISONING | ||
| Chlorine | 12hrs 20ppm Cl 2 , 50% sensitivity loss, 2 day recovery | <10% loss |
| Hydrogen Sulfide | 12hrs 40ppm H 2 S, 50% sensitivity loss, 2 day recovery | <50% loss |
| HMDS | hrs until 50% activity loss @ 10ppm HMDS | <10 |
| Optional H2S disposable filter can be ordered. Part no. ASF-2 | ||
| CH-D3 Combustible Gas Pellistor ELECTRICAL | ||
| Voltage | V (±0.2 V) | 3.0 |
| Power consumption | mW | 190 |
| Voltage sensitivity | % sensitivity change / 0.1V change | <3 |
| CH-D3 Combustible Gas Pellistor KEY SPECIFICATIONS | ||
| Weight | g | <10 |
| Operating life | months until 75% original sensitivity (24 month warranted) | > 24 |
Sensitivity
| Hydrocarbon/Gas | % Sensitivity relative to Methane | % LEL Sensitivity to Methane |
| Hydrogen | 120 to 140 | 150 to 175 |
| Ethane | 120 to 140 | 200 to 230 |
| Propane | 140 to 170 | 330 to 400 |
| Butane | 150 to 180 | 470 to 570 |
| n-Pentane | 170 to 200 | 570 to 670 |
| Hexane | 190 to 220 | 860 to 900 |
| Heptane | 190 to 220 | 900 to 1050 |
| Octane | 200 to 230 | 1000 to 1150 |
| Nonane | 190 to 220 | 830 to 950 |
| Acetylene | 140 to 160 | 280 to 320 |
| Ethylene | 150 to 170 | 275 to 320 |
| Isobutylene | 170 to 190 | 425 to 475 |
Contact Us
- Week technology ltd
- Contact nameCherry Chat Now
- Phone86-0755-83289036-843
- Address16 Floor, Building #3, Zhongke Mansion, Gaoxin South, Shenzhen, Guangdong
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