ELT Sensor CD-300, CD-300NL Operation Manual

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)

ELT Sensor Corp. Ver. 2.1 (Jan. 2014)

CD-300 Transmitter

Specifications

General Performance

Operating Temperature range

0 ~ 50℃

Operating Humidity range

0 ~ 95% RH (Non-condensing)

Storage Temperature

-20℃ ~60℃

CO₂ Measurement

Sensing Method

NDIR (Non-dispersive Infrared)

Measurement Range

0 to 2,000 / 3,000 / 5,000 / 10,000ppm

( with jumper position 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-Wired)

Output Signals

4 ~ 20mA or 2 ~ 10VDC

0 ~ 20mA or 0 ~ 10VDC

, (Jumper selectable

-voltage output or current output)

Dimensions (unit : mm)