IRceL CH4 NDIR Methane (CH4) Gas Sensor
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IRceL CH4 NDIR CH4 Sensor Description
Miniature infrared sensor with on-board EEPROM and thermistor
IRceL CH4 NDIR CH4 Sensor Key Features & Benefits:
• Integrated thermistor for accurate temperature compensation
• EEPROM programmed with sensor specfic performance characteristics
• Compact Size
IRceL CH4 NDIR CH4 Sensor Technical Specifications
MEASUREMENT | |
Operating Principle | Non-Dispersive Infra-Red (NDIR) |
Measurement Range | 0-5% vol. Methane |
Accuracy (-20°C to +50°C) | Within ± (0.1% vol CH 4 + 4% of concentration) |
Response Time (T90) | <35 Seconds |
Repeatability: Zero 5% CH | <±0.015% CH 4 <±0.05% CH |
Linearity | See Operating Principles OP17 |
ELECTRICAL | |
Supply Voltage | 3-5 VDC, 3.3 V to utilise EEPROM calibration |
Power Consumption | <100 mW at 3.3 V |
Recommended Lamp Frequency | 2 Hz, 50% duty cycle |
Minimum Resolution | 0.03% CH 4 at zero 0.1% CH 4 at range |
Warm-up Time | <10 Seconds |
MECHANICAL | |
Housing Material | Stainless Steel (see back page) |
Weight | 23 g |
Orientation | Any |
ENVIRONMENTAL | |
Typical Applications | General Purpose Portable Fixed Methane Detection |
Operating Temperature Range | -20°C to +50°C |
Operating Humidity Range | 0 to 99% RH (non-condensing) |
Operating Pressure Range | 700 to 1300 mBar with compensation |
LIFETIME | |
Long Term Zero Drift | <±0.05% CH 4 per month |
Recommended Storage Temp | -20°C to +50°C |
MTBF | > 5 years |
Standard Warranty | 12 months from date of despatch |
IMPORTANT NOTE:
Connection should be made via PCB sockets only. Soldering to the pins will seriously damage your sensor.
All performance data is based on conditions at 20°C, 50%RH and 1013mBar, using City Technology recommended circuitry. For sensor performance data under other conditions, refer to the Characterisation Note and Operating Principles.