Automatikprodukter
Ammonia detector - Manual
NH3/ENH3
April.10
Electrochemical Transmitter
9
Technical Data
General sensor performances
Gas type
Ammonia (NH3)
Sensor element
Electrochemical, diffusion
Measuring range
0 - 300 ppm / 0 - 1000 ppm
Pressure range
Atmosphere ± 15 %
Humidity
15 – 90 % RH non condensing
Storage temperature range
5 °C to 20 °C
Storage time
Max. 3 months
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Type NH3
Accuracy
4 ppm
Repeatability
< 3 % of reading
Zero-point
0 ppm ± 16 ppm
Long-term output drift
< 5% signal loss/6 months
Response time
t
90
< 35 sec.
Temperature range
-10 °C to + 40 °C
Life expectancy
> 2 years/normal operating environment
Cross sensitivity*
Concentration
Reaction
Carbon monoxide; CO 300 ppm
0 ppm
Hydrogen H2
200 ppm
0 ppm
Sulphur dioxide SO2 20 ppm
- 7 ppm
Hydrogen sulphide H2S
20 ppm
7 ppm
Nitrate monoxide NO
20 ppm
- 1 ppm
Nitrogen dioxide NO2
20 ppm
- 20 ppm
Chlorine Cl2
20 ppm
- 55 ppm
Carbon dioxide CO2
2 % vol
0 ppm
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Type ENH3
Accuracy
< 15 ppm
Repeatability
< 5 % of reading
Zero-point
0 ppm ± 15 ppm
Long-term sensitivity output drift
< 10% signal loss/6 months
Response time
t
90
< 120 sec.; t50 < 20 sec.
Temperature range
-40 °C to + 10 °C
Life expectancy
> 18 months/normal operating environment
Cross sensitivity*
Concentration
Reaction
Carbon monoxide; CO
100 ppm
95 ppm
Hydrogen H2
3000 ppm
3000 ppm
Sulphur dioxide SO2
20 ppm
5 ppm
Hydrogen sulphide H2S
20 ppm
40 ppm
Phosphates
300 ppm
0 ppm
Nitrogen dioxide NO2
10 ppm
0 ppm
Chlorine Cl2
5 ppm
0 ppm
Hydrogen chloride HCl
10 ppm
0 ppm
Carbon dioxide CO2
0,5 % vol
0 ppm
Alcohols
1000 ppm
yes
Amine —-
yes
Arsines
0,2 ppm
0 ppm
