Emerson 210-2000 Manuel D’Utilisation

Carbon Dioxide Sensor

Product Information Sheet

210-2000

Span

The Span parameter determines whether you want to

measure concentrations between 0-2000 ppm or 0-

5000 ppm. If set to 2000 ppm, the sensor’s analog
output signal will be scaled properly so that the

highest output voltage corresponds to 2000 ppm.

Likewise, if set to 5000 ppm, the highest output

voltage will signify 5000 ppm. Press ENTER to save

settings.

Output

The Output parameter determines whether you want

the analog output voltage to vary from 0- 5VDC or

from 0-10 VDC. This parameter must be set to 0-
5VDC if the analog output is connected to an I/O

board’s input point. Press ENTER to save settings.

Replacing the Door

Once all programming and wiring is done, the sensor

is ready for operation. Snap the door on to the front

of the circuit board to complete installation. The

sensor comes equipped with two doors: one with a

window that allows the screen to be shown, and one
with no window that covers the screen. Choose

whichever door is appropriate for your site.

Setting Up The Sensor
Type in Einstein and
REFLECS Controllers

The analog output of the CO

sensor is a linear 0-

5VDC signal, with 0V representing a concentration of

0 ppm, and 5V representing the maximum

concentration level (either 2000 ppm or 5000 ppm,

depending on the value of the Span parameter you

chose when setting up the sensor).

In order for Einstein and the REFLECS line of

controllers (RMCC, BEC, or BCU) to read the signal

from the CO

sensor, it must be set up under Sensor

Control (for REFLECS) or the Analog Input Setup
Screen (for Einstein) as a Linear sensor. Refer to your

controller’s user manual for more information on the

Linear sensor type and how to program its

parameters.

When setting up the sensor in Einstein or REFLECS,

you will need to include the following information:

Gain: The Gain is the number that will be multiplied

with the number of volts coming from the CO

sensor’s analog output to yield the concentration

value. If the sensor’s Span is set to 5000 ppm, use a

Gain value of 1000. If the Span is set to 2000 ppm,

use a Gain value of 400.

Offset: Because all calibration is handled by the

sensor itself, the CO

sensor’s offset should be set to

zero.

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