Ammonia Sensor (NH3 Sensor) - NH3-AF

  • Ammonia Sensor (NH3 Sensor)
  • Ammonia Sensor (NH3 Sensor)
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• Range: 100 ppm NH3 limit of performance warranty
• Sensitivity: 20 to 40 nA/ppm in 50ppm NH3
• Response time: < 60 t90 (s) from zero to 50ppm NH3
• Resolution: < 0.7 RMS noise (ppm equivalent)
• Temperature range: -30 to 50 °C
• Pressure range: 80 to 120kPa
• Humidity range: 15 to 90 % rh continuous
• Weight: < 6g

  • Model Number: NH3-AF
  • Data Sheet: Date Sheet File
Quantity:
- +

Product Specification

NH3-AF Ammonia Sensor (NH3 Sensor) Schematic Diagram


NH3-AF Ammonia Sensor (NH3 Sensor) PERFORMANCE
Sensitivity
nA/ppm in 50ppm NH3
20 to 40
Response time
t90 (s) from zero to 50ppm NH3  (300 seconds)
< 60
Zero current
ppm equivalent in zero air
< ± 7
Resolution
RMS noise (ppm equivalent)
< 0.7
Range
ppm NH3 limit of performance warranty
100
Linearity
ppm error at full scale, linear at zero and 40ppm NH3
+5 to -5
Overgas limit
maximum ppm for stable response to gas pulse
200



NH3-AF Ammonia Sensor (NH3 Sensor) LIFETIME
Zero drift
ppm equivalent change/year in lab air
< 2
Sensitivity drift
% change/year in lab air, monthly test 
< 3
Operating life
months until 80% original signal  (12 month warranted)
> 24



NH3-AF Ammonia Sensor (NH3 Sensor) ENVIRONMENTAL
Sensitivity @ -20°C
% (output @ -20°C/output @ 20°C) @ 50ppm
100 to 110
Sensitivity @ 50°C
% (output @ 50°C/output @ 20°C) @ 50ppm
100 to 110
Zero @ -20°C
ppm equivalent change from 20°C
-10 to 0
Zero @ 50°C
ppm equivalent change from 20°C
5 to 20



NH3-AF Ammonia Sensor (NH3 Sensor) CROSS SENSITIVITY
H2S  sensitivity
% measured gas @ 20ppm H2S
< ±3
NO2  sensitivity
% measured gas @ 20ppm NO2
< -60
Cl2    sensitivity
% measured gas @ 10ppm Cl2
< -300
NO    sensitivity
% measured gas @ 50ppm NO
< 20
SO2  sensitivity
% measured gas @ 20ppm SO2
nd
CO    sensitivity
% measured gas @ 400ppm CO
< 25
H2     sensitivity
% measured gas @ 400ppm H2
< 15
C2H4 sensitivity
% measured gas @ 400ppm C2H4
< 2
CO2  sensitivity
% measured gas @ 5% CO2
0



NH3-AF Ammonia Sensor (NH3 Sensor) KEY SPECIFICATIONS
Bias voltage
mV (Working Electrode potential is above ground)
+200
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 sealed pot)
6
Load resistor
Ω (recommended)
10 to 47
Weight
g
< 6

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