Catalogue - H2S-D4 Hydrogen Sulfide Sensors - Alphasense

See other catalogues for Alphasense

Toxic gas sensor, Oxygen sensor, Electrochemical sensor, Gas sensor, Nitrogen dioxide sensor

Text version of the page

H2S-D4

PATENDEDand PATENT PENDING

Figure 1 H2S-D4 Set

014.5 including labe

All dimensions in millimetres (±0.1)

Bottom View

Top View

Side View

(A three pin version is available on request coded H2S-D1)


PERFORMANCE	Sensitivity	nA/ppm 20ppm	110 to 160
	Response time	t₉₀ (s) from zero to 20ppm H2S	<20
	Zero current	ppm equivalent in zero air	< ± 0.4
	Resolution	RMS noise (ppm equivalent)	< 0.3
	Range	ppm H2S limit of performance warranty	100
	Linearity	ppm error at full scale, linear at zero and 20ppm ^S< ± 6
	Overgas range	maximum ppm for stable response to gas pulse	200
LIFETIME	Zero drift	ppm equivalent change/year in lab air	< ± 0.1
	Sensitivity drift	% change/year in lab air, monthly test	< 2
	Operating life	months until 80% original signal (24 month warranted)	> 24
ENVIRONMENTAL Sensitivity @ -20C % (output @ -20^<C/output @ 20°C) @ 20ppm			84 to 95
	Sensitivity @ 50C % (output @ 50°C/output @ 20C) @ 20ppm 99 to 110
	Zero @ -20C	ppm equivalent change from20C	±1.5
	Zero @ 50C	ppm equivalent change from 20C	± 1.5
CROSS	SO2 sensitivity	% measured gas @ 20ppm SO2	< 20
SENSITIVITY	NO sensitivity	% measured gas @ 50ppm NO	< 12
	NO2 sensitivity	% measured gas @ 10ppm NO2	< -25
	CI2 sensitivity	% measured gas @ 10ppm CI2	< -25
	H2 sensitivity	% measured gas @ 400ppm H2	< 1
	C2H4 sensitivity	% measured gas @ 400ppm C2H4	< 0.1
	CO sensitivity	% measured gas @ 400ppm CO	< 1.5
	NH3 sensitivity	% measured gas @ 20ppm NH3	< 0.1
KEY	Temperature range C		-30 to 50
SPECIFICATIONS	Pressure range	kPa	80 to 120
	Humidity range	%rh (see note below)	15 to 90
	Storage period	months @ 3 to 20C (stored in sealed pot)	6
	Load resistor	w (recommended)	10 to 100
	Weight	^g	< 2

Note: Above 85% rh and 40^OC a maximum 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

H2S-D4 Hydrogen Sulfide Sensors - Alphasense - #1

Toxic gas sensor, Oxygen sensor, Electrochemical sensor, Gas sensor, Nitrogen dioxide sensor