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ELT Sensor Corp.                                                                     

Ver. 2.1 (Jan. 2014)

 

 

 

 

 

 

 

 

 

 

 

 

 

General 

 

CD-300 and CD-300NL are Transmitter type 

models of CO2 Sensor, which are for 0-20mA , 

4-20mA Current output module or 0-10V, 2-

10V Voltage output module(Jumper select) 

These models give 3 wired input power (2 

PWR lines, 1 Common GND line). 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Features 

• 

Non-Dispersive Infrared(NDIR) technology

 

is used to measure CO₂ levels. 

• 

CO2 concentration can be measure as 

Analog Voltage /Current value

 

    (4~20mA / 2~10V or 0~20mA / 0~10V) 

• 

Input power 24VAC or 24VDC

 

.

CD-300NL (without Display) is available

• 

Customer could select multiple functions

   

-. Either of Factory calibration mode or 

automatic recalibration mode with 1 month 

period after 3 days. 

-. 10 minutes manual recalibration function 

is available as needed. 

-. CO2 measuring range change between 

0~10,000ppm is available. 

• 

Simple maintenance

 (S-200 sensor module 

are separately connected to main board so 

that easily managed) 

• 

Size

 : 123 x 69 x 40 (mm) 

ELT Sensor 

Carbon Dioxide (CO₂) Transmitter 

(3-wired type) Operation Manual 

CD-300 / CD-300NL 

CD-300NL (without 

LCD Display) 

CD-300 

  (with LCD Display) 

Summary of Contents for CD-300

Page 1: ...20mA 2 10V or 0 20mA 0 10V Input power 24VAC or 24VDC CD 300NL without Display is available Customer could select multiple functions Either of Factory calibration mode or automatic recalibration mode with 1 month period after 3 days 10 minutes manual recalibration function is available as needed CO2 measuring range change between 0 10 000ppm is available Simple maintenance S 200 sensor module are ...

Page 2: ...n change Accuracy 30ppm 5 Response Time 90 150 seconds Sampling Interval 4 sec Operation mode selection Two operation mode are available Factory calibration mode and Automatic calibration mode Two manual recalibration methods are available with manual recalibration by change of J2 J4 or by using TRB 100 Jig TRB 100 Jig additionally purchasable Electrical Data Input Power 24VAC 24VDC 20 50 60Hz 3 W...

Page 3: ... setting ð Current output and 0 Jumper B J11 group range selection 10K ppm 0 10 000ppm CO2 5K ppm 0 5 000ppm CO2 3K ppm 0 3 000ppm CO2 2K ppm 0 2 000ppm CO2 Jumper C Ver 2 1 Jan 2014 Jumper Function Descriptions group Voltage Current output and range selection 0 20mA 0 20mA output Current Voltage 4 20mA 4 20mA output Current Voltage output and 0 20mA output group CO2 Measurement 10K ppm 0 10 000pp...

Page 4: ...calibration mode If users want to operate this CD monthly automatic recalibration mode please set to ON position ACDL mode Auto calibration acts first 3day and every 30days after power on 10 RECAL Users can do recalibration correction when sensor showed much fault ppm Pose Jumper cap to ON Ver 2 1 Jan 2014 ppm setting and LCD right end postion 3rd position Real number 8 710ppm 11 250ppm when jumpe...

Page 5: ... GND Voltage or Current Wire connector Output signal calculation Ex 3 000ppm range 0 10V mode Read voltage 3 234V 3 000ppm 10V 3 234 970 ppm Ex 3 000ppm range 2 10V mode Read voltage 3 234V 3 234V 2V 3000ppm 8 462 ppm ELT Sensor Corp Chunui Technopark 101 909 36 Bucheon Wonmi gu Bucheon si Gyeonggi do 420 Phone 82 32 719 8055 Fax 82 70 8677 8055 http www eltsensor co kr ELT Sensor All right reserv...

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