Hydrogen Chloride Sensor (HCL Sensor) - HCL-A1

• Range: 100ppm HCl limit of performance warranty
• Sensitivity: 80 to 130 nA/ppm in 25ppm HCl
• Response time t90: < 300s from zero to 25ppm HCl
• Resolution: < 1 RMS noise (ppm equivalent)
• Temperature range: -30 to +50°C
• Pressure range​: 80 to 120 kPa
• Humidity range: 15 to 90% rh continuous
• Weight: < 6g

  • Model Number: HCL-A1
  • Data Sheet: Date Sheet File
Quantity:
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  • Hydrogen Chloride Sensor (HCL Sensor)
  • Hydrogen Chloride Sensor (HCL Sensor)
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Product Specification

HCL-A1 Hydrogen Chloride Sensor HCL 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 Chloride (HCl)/Hydrogen Bromide (HBr)
The HCL sensor also detects Hydrogen Bromide (HBr). These HCL sensors are zero biased for easier use.
Available in A and B series.


HCL-A1 Hydrogen Chloride Sensor HCL Sensor Schematic Diagram

 

HCL-A1 Hydrogen Chloride Sensor HCL Sensor PERFORMANCE
Sensitivity
nA/ppm in 25ppm HCl
80 to 130
Response time
t90 (s) from zero to 25ppm HCl
< 300
Zero current
ppm equivalent in zero air
< ±2.5
Resolution
RMS noise (ppm equivalent)
< 1
Range
ppm HCl limit of performance warranty
100
Linearity
ppm error at full scale, linear at zero, 40ppm HCl
0 to 6
Overgas limit
maximum ppm for stable response to gas pulse
200



HCL-A1 Hydrogen Chloride Sensor HCL 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)
nd



HCL-A1 Hydrogen Chloride Sensor HCL Sensor ENVIRONMENTAL
Sensitivity @ -20°C
% (output @ -20°C/output @ 20°C) @ 25ppm HCl
65 to 90
Sensitivity @ 50°C
% (output @ 50°C/output @ 20°C) @ 25ppm HCl
102 to 120
Zero @ -20°C
ppm equivalent change from 20°C
< 0 to 4
Zero @ 50°C
ppm equivalent change from 20°C
< +1 to -5



HCL-A1 Hydrogen Chloride Sensor HCL Sensor CROSS SENSITIVITY
H2S  sensitivity
% measured gas @ ppm H2S
< 250
NO2  sensitivity
% measured gas @ ppm NO2
< -150
Cl2    sensitivity
% measured gas @ ppm Cl2
< -20
NO    sensitivity
% measured gas @ ppm NO
< 2
SO2  sensitivity
% measured gas @ ppm SO2
< 0.1
CO     sensitivity
% measured gas @ ppm CO
< 0.1
H2     sensitivity
% measured gas @ ppm H2
< 0.1
C2H4 sensitivity
% measured gas @ ppm C2H4
< 0.1
NH3  sensitivity
% measured gas @ ppm NH3
< 0.1
CO2 sensitivity
% measured gas @ 5% CO2
< 0.1



HCL-A1 Hydrogen Chloride Sensor HCL 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°C (stored in original container)
6
Load resistor
Ω (recommended)
10 to 33
Bias voltage
mV 
not required
Weight
g
< 6


Matched Transmitter board for HCL-A1 HCL Sensor

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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