Home Sensors Catalytic Flammable Gas Sensors NAP-78SU Catalytic Combustion Gas Sensor
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NAP-78SU Catalytic Combustion Gas Sensor :
The NAP-78SU is a gas sensor developed to detect incomplete combustion in gas water heaters. It can directly detect exhaust gas at around 200°C and is sensitive to carbon monoxide and hydrogen. The sensor has a bridge circuit on the board, and the zero point can be adjusted to any value using a variable resistor.
【Features】:
Module Type
For carbon monoxide and hydrogen gas
High temperature durability
Basic specifications :
Sensor (RC)
NAP-78SU
Detectable Gas
Incomplete combustion exhaust gas
Applied voltage
2.0±0.05V
Clean air output
30+/-3mV
Detection concentration range
Within 1% (including 0.5% hydrogen)
Output value
* Methane, isobutane, propane, hydrogen sensitivity (10% LEL)
1000ppmCO+500ppmH2: 5 – 7mV
Current consumption (when voltage is applied)
150 +/- 10mA
Usage environment (temperature conditions, humidity conditions)
-20 to +200°C
(-4 to 492°F) Less than 95% RH without condensation
Storage environment
-30 to +70℃
, less than 99% RH without condensation
Response time (T90)
T90: within 10 seconds
Same-day reproducibility
Zero point: ±0.5mV
Gas sensitivity: ±0.5% LEL
Annual zero point drift
Zero point: +/- 2mV / year
long term stability
Sensitivity: Within +/- 2mV/month
Design life
5 years or more (for appropriate consumer and light commercial applications)
Recommended storage period
6 months
linearity
50%LEL
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