CRIR E1 Commercial Carbon Dioxide Sensor 400-2000 ppm

Product Description:

CRIR E1 Commercial Carbon Dioxide Sensor 400-2000 ppm



Features:

Temperature Range 0 oC to 50 oC

Operating Humidity 0 to 90 %RH non condensed

Storage Temperature -40 oC to 70 oC

Expected Operating Life 10 years

Operation Voltage 4.5 to 5.5V unprotected against

Surges and reverse connection

Power Consumption 300mA peak, 30mA average

Alarm output, open collector 1000/800ppm Normal state is

conducting max 100mA. Transistor

open at CO2 High, OR Power Low,

or at Sensor Failure

Serial Communication UART, Modbus protocol

PWM Output, 1KHZ 0 to 100% duty cycle for

0 to 2000ppm,3.3V push-pull

CMOS output, unprotect

Maintenance Maintenance-free for normal

indoor application

Physical Characteristics

Weight ＜8 g

Size 33.5*22.5*11.5mm (max)

Outline Dimensions

All dimensions are in millimeters

All tolerances are  0.2 mm

Pin Definition 1

DAC or DVCC (3.3V)

2

UART_RXD

3

UART_TXD

4

UART_R/T

5

bCAL_in /CAL_in

6

PWM Output

7

Alarm output

8

GND

9

Vin _(4.5~5.5V)





Specifications:



Accuracy



±50ppm ±5% of reading



Response Time (T90)



£ 120 seconds



Sensor Warm up Time



3 mins (typically)



Repeatability



> 97%