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P-type Metal Oxide Carbon Monoxide (CO) Sensor
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Price
Price on request ≥1piece
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Model Number
CO-MFF, CO-PFF, CO-AFF -
Data Sheet
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Package
Original packaging -
Specs
CO-MFF, CO-PFF, CO-AFF -
Quantity
- +Send Inquiry
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Product Description
P-type Metal Oxide Carbon Monoxide (CO) Sensor Description
This sensor works well in ambient conditions and also in extreme temperatures and humidities where electrochemical sensors cannot survive. This metal oxide gas sensor is equipped with a filter that allows CO selectivity.
Unlike common n-type sensors, this p-type sensor has a large dynamic range, repeatable response, low humidity response and resistance increases in the presence of CO.
The change in resistance can be converted to an output voltage via a simple electrical circuit. Although the sensor can be used in constant temperature/ voltage mode, best response is achieved when the sensor is cycled between 400°C (sensing temperature) and 525°C (reset temperature).
Developed over many years, our p-type metal oxide gas sensors offer the following benefits:
• stable baseline
• low humidity sensitivity
• positive response to gases (safer response)
CO detection for extreme temperature or humidity enviroments
Each sensor type can be supplied in three housings:
• TO-5 metal can, the most common format
• Plastic 6-pin housing - frequently used with other metal oxide gas sensors
• Ex housing - stainless steel 316 housing with UL, CSA, ATEX and IECEx approvals, unique for metal oxides, allowing use in hazardous areas without the need for an IS circuit
P-type Metal Oxide Carbon Monoxide (CO) Sensor Housing options
CO-xFF: equipped with a PTFE-based dust/water filter and an Activated Carbon filter
This sensor works well in ambient conditions and also in extreme temperatures and humidities where electrochemical sensors cannot survive. This metal oxide gas sensor is equipped with a filter that allows CO selectivity.
Unlike common n-type sensors, this p-type sensor has a large dynamic range, repeatable response, low humidity response and resistance increases in the presence of CO.
The change in resistance can be converted to an output voltage via a simple electrical circuit. Although the sensor can be used in constant temperature/ voltage mode, best response is achieved when the sensor is cycled between 400°C (sensing temperature) and 525°C (reset temperature).
Developed over many years, our p-type metal oxide gas sensors offer the following benefits:
• stable baseline
• low humidity sensitivity
• positive response to gases (safer response)
CO detection for extreme temperature or humidity enviroments
Each sensor type can be supplied in three housings:
• TO-5 metal can, the most common format
• Plastic 6-pin housing - frequently used with other metal oxide gas sensors
• Ex housing - stainless steel 316 housing with UL, CSA, ATEX and IECEx approvals, unique for metal oxides, allowing use in hazardous areas without the need for an IS circuit
P-type Metal Oxide Carbon Monoxide (CO) Sensor Housing options
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Housing |
CO |
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TO-5 metal |
CO-MFF |
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6-pin Plastic |
CO-PFF |
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Ex certified metal |
CO-AFF |
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P-type Metal Oxide Carbon Monoxide (CO) Sensor PERFORMANCE |
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Range |
ppm CO limit of performance warranty |
5 to 500 |
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Sensor resistance (Ro) |
kΩ (50%rh, 23 (± 2)°C) |
220 ±50 |
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Sensor resistance ratio (Rg/Ro x 100%) |
% CO @ 20ppm in air |
120 ±15 |
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Gas response relationship (Rg/Ro - 1 = k.Conc) |
5 - 50ppm |
0.01 ±10% |
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Gas response relationship (Rg/Ro - 1 = k.Conc0.5) |
50 - 500ppm |
0.08 ±15% |
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Heater resistance (RH @ RT) |
Ω (23 ±1°C |
10 ±1.5 |
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Heater resistance (RH @ sensing temp.) |
Ω (400 ±10°C) |
22 ±3 |
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Heater resistance (RH @ reset temp.) |
Ω (525 ±10°C) |
26 ±3 |
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Heater power consumption (mW) typical for 5:1 |
VH = 2.7 ±0.2V (400°C) |
340 ±30 |
| 3.7 ±0.3V (525°C) |
530 ±50 |
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Operating Temperature Range |
°C |
-20 to 120 |
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P-type Metal Oxide Carbon Monoxide (CO) Sensor CROSS SENSITIVITY |
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H2 sensitivity |
% measured gas @ 100 ppm H2 |
TBA |
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EtOH sensitivity |
% measured gas @ 50 ppm EtOH |
TBA |
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C3H8 sensitivity |
% measured gas @ 500 ppm C3H8 |
TBA |
|
NH3 sensitivity |
% measured gas @ 25 ppm NH3 |
TBA |