ELT Sensor CD-300, CD-300G, CD-300L, CD-300LG Operation Manual

ELT SENSOR Corp.

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General

CD-300(G)and CD-300L(G) 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

• Either of four (2 Set of Analog Voltage or

2 set Current) output can be chosen by

Jumper. (4~20mA/2~10V/0~20mA/0~10V)

• Customer could select multiple functions

-. Factory calibration mode is available.

-. 10 minutes manual recalibration or weekly

Auto-Calibration is settable.

• Simple maintenance (S-300(G) sensor is

detachable from main board, which gives

easier manipulation on sensor module.)

• Size : 123 x 69 x 40 (mm)

Carbon Dioxide (CO₂) Transmitter

(3-wired type) Operation Manual

CD-300(G) / CD-300L(G)

CD-300(G)

CD-300L(G)

(with LCD Display)

Version 2.72

ELT SENSOR Corp.

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CD-300(G)/CD-300L(G)

Transmitter Specifications

General Performance

Operating Temperature range

-10℃ ~ 60℃

Operating Humidity range

0 ~ 95% RH (Non-condensing)

‘G’:0~99% RH(Non-condensing)

Storage Temperature

-30℃ ~70℃

CO₂ Measurement

Sensing Method

NDIR (Non-dispersive Infrared)

Measurement Range

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

(Jumper selectable)

(2%/3%/5%/7% are available)

Accuracy

±30ppm ±5%

Response Time(90%)

150 seconds

Sampling Interval

3 sec.

Operation mode selection

Factory calibration mode should be used

(Automatic calibration mode is only Indoor Air

Quality Monitoring).

Two manual recalibration methods are

available with manual recalibration by change

of J2 & J4 or by using TRB-100ST Jig (TRB-

100ST Jig : On Sale)

Electrical Data

Input Power

24VDC ± 20% (3-Wired)

Output Signals

4 ~ 20mA or 2 ~ 10VDC

0 ~ 20mA or 0 ~ 10VDC

, (Jumper selectable

-voltage output or current output)

Dimensions (unit : mm)