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    Hello, I already used the equipment in an aluminum smelting plant in Mexico and I was surprised by the function of your company's laser device.
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    Sylvia
    Good gas leak detection instrument !!! High accurate test values :D
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20 ppm Zetron NO Nitric Oxide Gas Sensor 4 Electrode NO-B4

  • 20 ppm Zetron NO Nitric Oxide Gas Sensor 4 Electrode NO-B4
Place of Origin UK
Brand Name Alphasense
Certification CE
Model Number NO-B4
Minimum Order Quantity 1
Payment Terms L/C, D/A, D/P, T/T

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Product Details
Range 20 Ppm NO Limit Of Performance Warranty Sensitivity 500 To 850 NA/ppm At 2ppm NO
Response Time T90 < 45 (s) From Zero To 2ppm NO Temperature Range -30 To 40 ℃
Pressure Range 80 To 120 KPa Humidity Range 15 To 85% Rh Continuous
Weight < 13 G
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NO nitric oxide gas sensor

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4-Electrode nitric oxide gas sensor

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20 ppm nitric oxide gas sensor
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Product Description

NO-B4 Nitric Oxide Sensor (NO Sensor) Description
Alphasense Nitric Oxide gas sensors operate using proven fuel cell technology.
Sensors are available in the following sizes:
A: 20mm diameter, the industry standard size for portable gas detectors
B: 32mm diameter package, the best choice for fixed site applications
D: miniature, with proven long-term performance. Sensors designed for the next generation of portable gas detectors.
The NO range provides OEMs with reliable sensors for use in a number of high volume applications. Strong signal levels combined with low zero current allows resolution to 200 parts per billion (ppb) whilst giving linear outputs to as high as 250ppm. The sensors are suitable for inclusion in fixed installation sensing heads, portable safety instruments, urban air monitoring and stack gas analysers.
Alphasense NO sensors provide a significant improvement in stability of response to transient relative humidity changes.
The NO sensors offer our electrolyte leak-free guarantee and reliable long-term detection performance. The leakproof housing is moulded with a colour coded top for ease of identification.
 

NO-B4 Nitric Oxide Sensor (NO Sensor) PERFORMANCE
SensitivitynA/ppm at 2ppm NO500 to 850
Response timet90 (s) from zero to 2ppm NO< 45
Zero currentnA in zero air at 20℃30 to 140
Noise*±2 standard deviations (ppb equivalent)15
Rangeppm NO limit of performance warranty20
Linearityppb error at full scale, linear at zero and 5ppm NO< ±1
Overgas limitmaximum ppm for stable response to gas pulse50
* Tested with Alphasense ISB low noise circuit 
   
NO-B4 Nitric Oxide Sensor (NO Sensor) LIFETIME
Zero driftppb equivalent change/year in lab air0 to 50
Sensitivity drift% change/year in lab air, monthly test0 to -20
Operating lifemonths until 50% original signal (24 month warranted)> 24
   
Nitric Oxide Sensor (NO Sensor) NO-B4 ENVIRONMENTAL 
Sensitivity @ -20℃(% output @ -20℃/output @ 20℃) @ 2ppm NO60 to 90
Sensitivity @ 40℃(% output @ 50℃/output @ 20℃) @ 2ppm NO97 to 110
Zero @ -20℃nA0 to 30
Zero @ 40℃nA100 to 200
   
NO-B4 Nitric Oxide Sensor (NO Sensor) CROSS SENSITIVITY
H2S sensitivity% measured gas @ 5ppm H2S (after 3 minutes)< 10
NO2 sensitivity% measured gas @ 5ppm NO2 (after 3 minutes)< 4
Cl2 sensitivity% measured gas @ 5ppm Cl2< 3
SO2 sensitivity% measured gas @ 5ppm SO2< 5
H2 sensitivity% measured gas @ 100ppm H2< 0.1
CO sensitivity% measured gas @ 5ppm CO< 0.3
NH3 sensitivity% measured gas @ 5ppm NH3< 0.1
CO2 sensitivity% measured gas @ 5% Vol CO2< 0.1
O3 sensitivity% measured gas @ 100ppb O3< 4
Halothane sensitivity@ 100ppm Halothane< 0.1
   
NO-B4 Nitric Oxide Sensor (NO Sensor) KEY SPECIFICATIONS
Bias voltagemV(working electrode potential is above reference electrode)200
Temperature range℃-30 to 40
Pressure rangekPa80 to 120
Humidity range% rh continuous15 to 85
Storage periodmonths @ 3 to 20℃ (stored in sealed pot)6
Load resistorΩ (ISB circuit is recommended)33 to 100
Weightg< 13

Matched Transmitter board for NO-B4 NO Sensor
Individual Sensor Board (ISB) Alphasense B4 4-Electrode Gas Sensors
The Individual Sensor Board (ISB) is designed for use with the Alphasense B4 family of four-electrode gas sensors. This potentiostat provides a dual channel voltage output.
A low noise bandgap provides the bias voltage for NO sensors and the ISB can measure both oxidising (CO, H2S, SO2 and NO) and reducing (O3 and NO2) gases.
The ISB is configured for specific sensors: NO, NO2, O3 and CO / H2S / SO2 .
Designed for low power applications, the ISB requires 3.5 to 6.4 stable DC supply at only 1mA.
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