Catalogue - SO2-BF Sulfur Dioxide Sensors - Alphasense

See other catalogues for Alphasense

Catalytic sensor, Gas sensor, Oxygen sensor, Electrochemical sensor, Carbon dioxide sensor

Text version of the page

PATENTED

Figure 1 SO2-BF Schematic Diagram

All dimensions in millimetres (± 0.1mm)

Bottom View

Side View

Top View

PERFORMANCE Sensitivity

Response time Zero current Resolution Range Linearity Overgas range

nA/ppm in 20ppm SO₂ 300 to 440

tgo (s) from zero to 20ppm SO₂ < 30

ppm equivalent in zero air < ± 0.5

RMS noise (ppm equivalent) < 0.1

ppm limit of performance warranty 100 ppm error at full scale, linear at zero and 20ppm SO₂ < ± 2

maximum ppm for stable response to gas pulse 500

LIFETIME Zero drift ppm equivalent change/year in lab air nd

Sensitivity drift % change/month in lab air, twice monthly test < 2

Operating life months until 80% original signal (24 month warranted) > 24


ENVIRONMENTAL Sensitivity @ -20C		% (output @ -20C/output @ 20C) @ 20ppm		84 to 94
	Sensitivity @ 50C	% (output @ 50C/output @ 20C) @ 20ppm		96 to 102
	Zero @ -20C	ppm equivalent change from 20C		< ± 0.4
	Zero @ 50C	ppm equivalent change from 20C		< ± 3
CROSS	Filter capacity	ppmhrs	H₂S	450
SENSITIVITY	NO sensitivity	% measured gas @ 50ppm	NO	< -3
	NO₂ sensitivity	% measured gas @ 10ppm	NO₂	< -120
	Cl₂ sensitivity	% measured gas @ 10ppm	^Cl2	< -50
	H₂ sensitivity	% measured gas @ 400ppm	^H2	< 0.1
	CO sensitivity	% measured gas @ 400ppm	CO	< 1
	C₂H₄ sensitivity	% measured gas @ 400ppm	^C2^H4	< 40
	NH3 sensitivity	% measured gas @ 20ppm		< 0.1
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 (recommended)		10 to 47
	Weight	^g		< 13

Note: Above 85% rh and 40^oC 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 tested and stored at ambient environments 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) 1371 335 899 E-mail: sensors@alphasense.com Website: www.alphasense.com

SO2-BF Sulfur Dioxide Sensors - Alphasense - #1

Catalytic sensor, Gas sensor, Oxygen sensor, Electrochemical sensor, Carbon dioxide sensor