COH-A1 Carbon Monoxide + Hydrogen Sulfide Sensor

COH-A1 Carbon Monoxide + Hydrogen Sulfide Sensor


Negotiable Min Order Quantity Unit

Required Quantity
Place of Origin
U. Kingdom
Brand name
Alphasense
Payment Terms
Others,T/T
Production method
Negotiable
Shipping / Lead Time
Negotiable / Negotiable
Keyword
carbon monoxide sensor, hydrogen sulfide sensor, h2s co gas sensor
Category
Sensors

Shenzhen ISweek Technology LTD

Membership
BIZ
Country / Year Established
China China / 2014
Business type
Trading Company
Verified Certificate

8

Product name COH-A1 Carbon Monoxide + Hydrogen Sulfide Sensor Certification -
Category Sensors Ingredients -
Keyword carbon monoxide sensor , hydrogen sulfide sensor , h2s co gas sensor Unit Size -
Brand name Alphasense Unit Weigh -
origin U. Kingdom Stock -
Supply type - HS code -

Product Information

 

COH-A1 Carbon Monoxide + Hydrogen Sulfide Sensor Introduction
Personal gas safety monitors can be found in almost every industry, with the requirement for multiple gas detection becoming commonplace. Most of these gas detectors measure both Carbon Monoxide and Hydrogen Sulfide.

Alphasense new 2sense H2S+CO gas sensor allows designers to reduce significantly their gas detector size and cost. The patented 2sense uses a new approach to dual gas sensor design.
 

A larger version of the D2 sensor, which has a proven track record in the field over many years, the 2sense does not compromise performance or long term stability over the standard two-sensor solution when measuring both H2S and CO.

 

Carbon Monoxide (CO) Sensor Specification

Carbon Monoxide Sensor PERFORMANCE 
Sensitivity
nA/ppm in 400ppm CO
60 to 110
Response time
t90 (s) from zero to 400ppm CO
< 20
Zero current
ppm equivalent in zero air
< ±2
Resolution
rms noise (ppm equivalent)
< 0.5
Range
ppm CO limit of performance warranty
2,000
Linearity
ppm error at full scale, linear at zero and 400 ppm CO
10 to 40
Overgas limit
maximum CO for stable response to gas pulse
5,000



Carbon Monoxide Sensor LIFETIME 
Zero drift
ppm equivalent change/year in lab air
< 0.5
Sensitivity drift
% change/year in lab air, monthly test
< 4
Operating life
months until 80% original signal (24 month warranted)
24



Carbon Monoxide Sensor ENVIRONMENTAL
Sensitivity at -20℃
% (output at -20℃/output @ 20℃) at 100ppm CO
45 to 75
Sensitivity at 50℃
% (output at 50℃/output @ 20 ℃) at 100ppm CO
102 to 125
Zero at -20℃
ppm equivalent change from 20 ℃
0 to 2
Zero at 50℃
ppm equivalent change from 20 ℃
0 to -6



Carbon Monoxide Sensor CROSS SENSITIVITY 
Filter Capacity
ppm-hours of Hydrogen Sulfide
nd
H2S   sensitivity
% measured gas at 20ppm H2S
< 1.5
NO2   sensitivity
% measured gas at 10ppm NO2
< 0.1
Cl2     sensitivity
% measured gas at 10ppm Cl2
< 0.1
NO     sensitivity
% measured gas at 50ppm NO
< 50
SO2   sensitivity
% measured gas at 20ppm SO2
< 0.1
H2     sensitivity
% measured gas at 400ppm H2 @ 20
< 50
C2H4 sensitivity
% measured gas at 400ppm C2H4
< 100
NH3   sensitivity
% measured gas at 20ppm NH3
< 0.1



Carbon Monoxide Sensor KEY SPECIFICATIONS 
Temperature range

-30 to 50
Pressure range
kPa
80 to 120
Humidity range
%rh continuous (see note below)
15 to 90
Storage period
months at 3 to 20℃ (stored in sealed pot)
6
Load resistor
Ω (recommended)
10 to 47
Weight
g
< 6

Hydrogen Sulfide (H2S) Sensor Specification

 

Hydrogen Sulfide Sensor PERFORMANCE
Sensitivity
nA/ppm in 20ppm H2S
700 to 1000
Response time
t90 (s) from zero to 20ppm H2S @ 20℃
< 30
Zero current
ppm equivalent in zero air
0 to -0.3
Resolution
rms noise (ppm equivalent)
< 0.05
Range
ppm H2S limit of performance warranty
200
Linearity
ppm error at full scale, linear at zero and 20ppm H2S
0 to -3
Overgas limit
maximum ppm H 2 S for stable response to gas pulse
500



Hydrogen Sulfide Sensor 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



Hydrogen Sulfide Sensor ENVIRONMENTAL
Sensitivity at -20℃
% (output at -20℃/output at 20℃) at 20ppm H2S
80 to 90
Sensitivity at 50℃
% (output at 50℃/output at 20℃) at 20ppm H2S
105 to 115
Zero at -20℃
ppm equivalent change from 20℃
< ±0.05
Zero at 50℃
ppm equivalent change from 20℃
< 0 to 0.2



Hydrogen Sulfide Sensor CROSS SENSITIVITY 
NO2   sensitivity
% measured gas at 10ppm NO2
< -25
Cl2     sensitivity
% measured gas at 10ppm Cl2
< -12
NO     sensitivity
% measured gas at 50ppm NO
< 1
SO2   sensitivity
% measured gas at 20ppm SO2
< 8
CO     sensitivity
% measured gas at 400ppm CO
< 6
H2     sensitivity
% measured gas at 400ppm H2
< 0.2
C2H4 sensitivity
% measured gas at 400ppm C2H4
< 0.5
NH3   sensitivity
% measured gas at 20ppm NH3
< 0.1

 

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options Others,T/T Shipping time Negotiable

Shenzhen ISweek Technology LTD

Country / Year Established
China China / 2014
Membership
BIZ
Business type
Trading Company

8

President
Li xiaoyang
Address
16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan
Product Category
Sensors
Year Established
2014
No. of Total Employees
101-500
Company introduction
<p> 

ISweek is the industry sourcing and direct marketing platform launched by OFweek, Chinese high-tech web portal. 

ISweek has gathered abundant high-quality industrial products around the world, and is dedicated to providing one-stop product distribution and procurement services for buyers, suppliers, traders, and manufacturers of industrial technology products.

For the projects of telecom communications power, dynamic environmental monitor and access networks ring controllers, we provide fully imported sensing component solutions and support the manufacturers in the industry with necessary techniques and information.

In industrial auto-control and building auto-control, we provide our customers with total solutions of sensing 
components, control systems, general cabling and system integration.

The gas sensor combined with the well-developed related temperature and humidity sensors can provide the increasing programs such as air purification, environment protection and granary monitor with excellent sensing and control component services.

 

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