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SCD30SAMPLEEXT Fiches technique(PDF) 3 Page - Sensirion AG Switzerland

No de pièce SCD30SAMPLEEXT
Description  CO2, humidity, and temperature sensor
PDF  8 Pages
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Fabricant  SENSIRION [Sensirion AG Switzerland]
Site Internet  https://www.sensirion.com/
Logo SENSIRION - Sensirion AG Switzerland

SCD30SAMPLEEXT Fiches technique(HTML) 3 Page - Sensirion AG Switzerland

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Version 1.0 – D1 – May 2020
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Electrical Specifications
Parameter
Conditions
Value
Average current10
Update interval 2 s
19 mA
Max. current
During measurement
75 mA
DC supply voltage (Vddmin - Vddmax)
Min. and max. criteria to operate SCD30
3.3 V – 5.5 V
Interface
-
UART (Modbus Point to Point; TTL Logic),
PWM and I2C
Input high level voltage (VIH)
I2C
Min. and max. criteria to operate SCD30
1.75 V - 3.0 V
Input high level voltage (VIH)
Modbus
Min. and max. criteria to operate SCD30
1.75 V – 5.5 V
Input low level voltage (VIL)
I2C/Modbus
Min. and max. criteria to operate SCD30
- 0.3 V – 0.9 V
Output low level voltage (VOL)
I2C/Modbus
IIO = +8 mA, Max. criteria
0.4 V
Output high level voltage (VOH)
I2C/Modbus
IIO = -6 mA, Min. criteria
2.4 V
Table 4 SCD30 electrical specifications
Operation Conditions, Lifetime and Maximum Ratings
Parameter
Conditions
Value
Temperature operating conditions
Valid for CO2 sensor.
0 – 50°C
Humidity operating conditions
Non-condensing. Valid for CO2 sensor.
0 – 95 %RH
DC supply voltage
Exceeding specified range will result in
damage of the sensor.
- 0.3 V – 6.0V
Voltage to pull up selector-pin
Max criteria
4.0 V
Voltage to pull up selector-pin
Min criteria
1.75 V
Storage temperature conditions
Exceeding specified range will result in
damage of the sensor.
- 40°C – 70°C
Maintenance Interval
Maintenance free when ASC field-
calibration algorithm11 is used.
None
Sensor lifetime
-
15 years
Table 5: SCD30 operation conditions, lifetime and maximum ratings
10
Average current including idle state and processing. Other update rates for small power budgets can be selected via the digital interface.
11
CO2 concentrations < 400 ppm may result in sensor drifts. For proper function of ASC field-calibration algorithm SCD30 has to be exposed to air with 400 ppm
regularly.



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