NO2-B1 Nitrogen Dioxide Sensors0 pages

نسخه متنی

NO2-B1 Nitrogen Dioxide Sensor

PATENTED

Figure 1 NO2-B1 Schematic Diagram

Sensing area Do not obscure

All dimensions In millimetres (± 0.1 mm)

Bottom View

Top View

Side View

PERFORMANCE Sensitivity	nA/ppm in 10ppm NO2	-600 to -1100
Response time	t90 (s) from zero to 10ppm NO2 (33Q load resistor)	< 60
Zero current	ppm equivalent in zero air	< ± 0.2
Resolution	RMS noise (ppm equivalent) (33Q Load Resistor)	< 0.02
Range	ppm NO2 limit of performance warranty	20
Linearity	ppm error at full scale, linear at zero and 10ppm NO2	< ± 0.3
Overgas range	maximum ppm for stable response to gas pulse	100
LIFETIME Zero drift	ppm equivalent change/year in lab air	< 0.1
Sensitivity drift	% change/month in lab air, monthly test	< 2
Operating life	months until 80% original signal (24 month warranted)	> 24
ENVIRONMENTAL Sensitivity @ -20C	% (output @ -20C/output @ 20C) @ 5ppm NO 2	101 to 109
Sensitivity @ 50C	% (output @ 40C/output @ 20C) @ 5ppm NO 2	78 to 93
Zero @ -20C	ppm equivalent change from 20C	< ± 0.15
Zero @ 50C	ppm equivalent change from 20C	< -0.1 to -0.25
CROSS NO sensitivity	% measured gas @ 50ppm NO	< 0.5
SENSITIVITY SO2 sensitivity	% measured gas @ 20ppm SO2	< -2
Cl2 sensitivity	% measured gas @ 10ppm Cl2	100
H2 sensitivity	% measured gas @ 400ppm H2	< 0.1
H2S sensitivity	% measured gas @ 20ppm H2S	-100
CO sensitivity	% measured gas @ 400ppm CO	< 0.1
C2H4 sensitivity	% measured gas @ 400ppm C2H4	< 0.1
NH3 sensitivity	% measured gas @ 20ppm NH3	< 0.1
CO2 sensitivity	% measured gas @ 5% (Vol) CO2	0
KEY Temperature range	C	-30 to 50
SPECIFICATIONS Pressure range	kPa	80 to 120
Humidity range	% rh continuous (see note below)	15 to 90
Storage period	months @ 3 to 20C (stored in sealed pot)	6
Load resistor	Q (for optimum performance)	33
Weight	g	< 13

Note: Above 85% rh and 40oC a miximum continuous exposure period of 10 days is warranted. Where such exposure occurs the sensor will recover normal electrolyte volumes when allowed to rest at lower % rh and temperature levels for several days.

NOTE: all sensors are tested at ambient environmental conditions, with 10 ohm load resistor, unless otherwise stated. As applications of use are outside our control, the information provided is given without legal responsibility. Customers should test under their own conditions, to ensure that the sensors are suitable for their own requirements.

Alphasense Ltd, Sensor Technology House, 300 Avenue West, Skyline 120, Great Notley. CM77 7AA. UK Telephone: +44 (0) 1376 556 700 Fax: +44 (0) 1376 335 899 E-mail: sensors@alphasense.com Website: www.alphasense.com

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NO2-B1 Nitrogen Dioxide Sensors0 pages

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