Hydrogen Cyanide Sensor (HCN Sensor) - HCN-B1

  • Hydrogen Cyanide Sensor (HCN Sensor)
  • Hydrogen Cyanide Sensor (HCN Sensor)
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• Range: 100ppm HCN limit of performance warranty
• Sensitivity: 80 to 140 nA/ppm in 30ppm HCN
• Response time t90: < 120 (s) from zero to 30ppm HCN
• Resolution: < 0.05 RMS noise (ppm equivalent)
• Temperature range: -30 to 50°C
• Pressure range: 80 to 120 kPa
• Humidity range: 15 to 90 % rh continuous
• Weight: < 6 g

  • Model Number: HCN-B1
  • Data Sheet: Date Sheet File
Quantity:
- +

Product Specification

HCN-B1 Hydrogen Cyanide Sensor HCN Sensor Description
Alphasense is expanding its line of electrochemical toxic gas sensors to address industry-specific requirements, including emissions monitoring, process safety, environmental monitoring and VOCs.

Hydrogen Cyanide (HCN)
In manufacturing, the use of Styrene Acrylonitrile (SAN) for food packaging and other consumer products has increased the danger of HCN generated during fires. Alphasense has responded to this issue with HCN sensors with fast response and stable output.
Available in A, B and D series.


HCN-B1 Hydrogen Cyanide Sensor HCN Sensor PERFORMANCE
Sensitivity
nA/ppm in 30ppm HCN
80 to 140
Response time
t90 (s) from zero to 30ppm HCN
< 120
Zero current
ppm equivalent in zero air
< ±2.5
Resolution
RMS noise (ppm equivalent)
< 0.05
Range
ppm HCN limit of performance warranty
100
Linearity
ppm error at full scale, linear at zero, 40ppm HCN
0 to 4
Overgas limit
maximum ppm for stable response to gas pulse
200



HCN-B1 Hydrogen Cyanide Sensor HCN Sensor LIFETIME
Zero drift
ppm equivalent change/year in lab air
nd
Sensitivity drift
% change/year in lab air, monthly test
nd
Operating life
months until 80% original signal (12 month warranted)
> 12



HCN-B1 Hydrogen Cyanide Sensor HCN Sensor ENVIRONMENTAL
Sensitivity @ -20°C
% (output @ -20℃/output @ 20°C) @ 30ppm HCN
70 to 95
Sensitivity @ 50°C
% (output @ 50℃/output @ 20°C) @ 30ppm HCN
100 to 115
Zero @ -20°C
ppm equivalent change from 20°C
< 0 to -2
Zero @ 50°C
ppm equivalent change from 20°C
< 0 to 2



HCN-B1 Hydrogen Cyanide Sensor HCN Sensor CROSS SENSITIVITY
H2S   sensitivity
% measured gas @ 20ppm H2S
< 400
NO2   sensitivity
% measured gas @ 10ppm NO2
< -120
Cl2     sensitivity
% measured gas @ 10ppm Cl2
< 25
NO     sensitivity
% measured gas @ 50ppm NO
< 1
SO2   sensitivity
% measured gas @ 20ppm SO2
< 3 (transient)
CO     sensitivity
% measured gas @ 400ppm CO
< 0.1
H2     sensitivity
% measured gas @ 400ppm H2
< 0.1
C2H4 sensitivity
% measured gas @ 80ppm C2H4
< 0.1
NH3   sensitivity
% measured gas @ 20ppm NH3
< 2
CO2   sensitivity
% measured gas @ 5% volume CO2
< 0.1



HCN-B1 Hydrogen Cyanide Sensor HCN Sensor KEY SPECIFICATIONS
Temperature range
°C
-30 to 50
Pressure range
kPa 
80 to 120
Humidity range
% rh continuous
15 to 90
Storage period
months @ 3 to 20℃ (stored in original container)
6
Load resistor
Ω (recommended)
10 to 33
Bias voltage
V not required
Weight
g
< 6

Matched Transmitter board for HCN-B1 HCN Sensor

4-20mA Analogue Transmitter Board
  • Factory calibration, custom-set for immediate use
  • Wide operating voltage range
  • Low RFI susceptibility
Alphasense 4-20 mA analogue transmitter boards provide a cost effective way for Original Equipment Manufacturers to engineer transmitter heads for fixed installation systems.


4-20mA Digital Transmitter Board
   • Factory calibration, custom-set for immediate use
   • Digital zero, sensitivity and temperature compensation
   • Digital and 4-20mA output
   • Biased or unbiased operation
   • Calibration and range change

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