ShenzhenYijiajie Electronic Co., Ltd.
The company advocates the corporate culture of "integrity and dedication, pragmatic innovation, unity and cooperation, diligence and progress", pays attention to standardized management, advocates
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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% |
