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Brand Name: WS
Place of Origin: China (Mainland)

Specifications

It is one of the general NDIR CO2 gas modules, which adopting NDIR principle, consists of patented light chamber, precise electric circuit and intelligent software. With the help of single light source, dual channel detector, and microprocessor, it can perform the gas concentration signal in different ways. In this product, temperature compensation has been realized as well as the revision of the nonlinear relationship. It has all the advantages from NDIR products, such as good selectivity, high sensitivity, long life and independence to O2.
It is suitable for the test in flexible occasion and its calibration possibility in clean air makes it a good choice in portable instrument, for example educational apparatus. 
All of our products can be customized according to your requirements.
Description Symbol Value Unit
Storage temperature Tstg -20 to 80 °C
Working temperature TA -10 to +50 °C
Working humidity HA 0 to 95 % RH
Working pressure PA 0.8 to 1.2 ATM
   
Electric characteristics
Description Symbol Min. Typical Max. Unit
Supply power Vs 4.5 5 5.5 V
Light current Iavg 50 60 70 mA
Frequency f   1   Hz
Preheat time twarm   30   Sec
   
Performance characteristics
Description Min Typical Max Unit
Detection range   5000 100000 ppm
Detection accuracy - 1000 ±60
1500 ±95
2000 ±125
3000 ±175
5000±280
50000±3000
100000±8000
- ppm
T90 diffusing - 45 60 Sec
pumping - - - Sec
Repeatability Zero   <±80   ppm
50% FS - <±8% FSD -  
Lifetime 3 5 10 Year

Technical Data

Working conditions

Description

Symbol

Value

Unit

Storage temperature

Tstg

-20 to 80

°C

Working temperature

TA

-10 to +50

°C

Working humidity

HA

0 to 95

% RH

Working pressure

PA

0.8 to 1.2

ATM

 

Electric characteristics

Description

Symbol

Min.

Typical

Max.

Unit

Supply power

Vs

4.5

5

5.5

V

Light current

Iavg

50

60

70

mA

Frequency

f

 

1

 

Hz

Preheat time

twarm

 

30

 

Sec

 

Performance characteristics

Description

Min

Typical

Max

Unit

Detection range

 

5000

100000

ppm

Detection accuracy

-

1000 ±60

1500 ±95

2000 ±125

3000 ±175

5000±280

50000±3000

100000±8000

-

ppm

T90

diffusing

-

45

60

Sec

pumping

-

-

-

Sec

Repeatability

Zero

 

<±80

 

ppm

50% FS

-

<±8% FSD

-

 

Lifetime

3

5

10

Year