IAQ-ENGINE

IAQ-ENGINE Datasheet

Manual iAQ-engine, Version May 2011 all data subject to change without notice

Part	Datasheet
IAQ-ENGINE	IAQ-ENGINE (pdf)

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Manual iAQ-engine, Version May 2011 all data subject to change without notice Manual iAQ-engine Indoor Air Quality sensor • Digital and analog I/O • SMD type package Product summary iAQ-engine is used for measuring VOC levels that can be read out as a prediction via the I2C bus. The iAQengine can also control equipment directly by an analog output with a 0-5 V DAC. The sensor itself is protected by a plastic cap and a filter membrane. The sensor module can be soldered directly to a host circuit board with selective soldering. Dimensions Pin Name 1 PRED 2 SCL 3 GND 4 SDA 5 NC 6 VCC Comment Prediction I/O Serial clock Ground Serial data Not connected +5V Figure 1 iAQ-engine sensor dimensions in mm, Top View Dimensions approximate values Sensor position approximate values Weight IP-Class Connector PCB x mm HEIGHT PCB mm HOOD x mm TOTAL HEIGHT mm x mm Radius 3,5 mm Approximately 1g 00 Card edge cut via Manual iAQ-engine all data subject to change without notice 1 Electrical specifications Power supply Voltage Power consumption ± 0.25V, max. 20mV ripple 225mW 5.0VDC Note Module features a decoupling capacitor. Communication Output signal options First functional reading after start up I2C DAC 0-5 V 15 minutes For more communication details see chapter 4 2 Environmental Temperature range operation Temperature range storage Humidity range 0 to 50°C -25 to 50°C 5 to 95 %r.h., non-condensing 3 Sensor Features Sensing technology Sensing range Module MEMS metal oxide sensor 450 65535 ppm CO2 equivalents relative DAC 450 2000 ppm CO2 equivalents relative Automatic baseline correction Manual iAQ-engine all data subject to change without notice 4 Interface Interface description Physical interface The physical interface is two-wire open drain SCL clock and SDA data . Pull-up resistors Clock speed Clock stretching External pull-up resistor required 100kHz Bus master clock stretching support is required Clock stretching Clock stretching pauses a transaction by holding the clock line low. The transaction cannot continue until the line is released to high again. Although the module could send the bytes of data at a fast rate, it could happen that the module is busy at the request time. It can then hold the clock line low after reception and acknowledgement of a byte to force the master into a wait state until the iAQ-engine module is ready for the next byte transfer in a type of handshake procedure. See official specification and user manual UM10204, Address Ordering information Order code 60-0100 Comment iAQ-engine

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Manual iAQ-engine, Version May 2011 all data subject to change without notice

Manual iAQ-engine

Indoor Air Quality sensor
• Digital and analog I/O
• SMD type package

Product summary
iAQ-engine is used for measuring VOC levels that can be read out as a prediction via the I2C bus. The iAQengine can also control equipment directly by an analog output with a 0-5 V DAC.

The sensor itself is protected by a plastic cap and a filter membrane. The sensor module can be soldered directly to a host circuit board with selective soldering.

Dimensions

Pin Name 1 PRED 2 SCL 3 GND 4 SDA 5 NC 6 VCC

Comment Prediction I/O Serial clock Ground Serial data Not connected +5V

Figure 1 iAQ-engine sensor dimensions in mm, Top View

Dimensions approximate values

Sensor position approximate values Weight IP-Class Connector

PCB x mm HEIGHT PCB mm HOOD x mm TOTAL HEIGHT mm x mm Radius 3,5 mm Approximately 1g 00 Card edge cut via

Manual iAQ-engine all data subject to change without notice
1 Electrical specifications

Power supply

Voltage Power consumption
± 0.25V, max. 20mV ripple 225mW 5.0VDC

Note Module features a decoupling capacitor.

Communication

Output signal options First functional reading after start up

I2C DAC 0-5 V 15 minutes

For more communication details see chapter 4
2 Environmental

Temperature range operation Temperature range storage Humidity range
0 to 50°C -25 to 50°C 5 to 95 %r.h., non-condensing
3 Sensor Features

Sensing technology Sensing range

Module

MEMS metal oxide sensor 450 65535 ppm CO2 equivalents relative DAC 450 2000 ppm CO2 equivalents relative Automatic baseline correction

Manual iAQ-engine all data subject to change without notice
4 Interface

Interface description

Physical interface

The physical interface is two-wire open drain SCL clock and SDA data .

Pull-up resistors Clock speed Clock stretching

External pull-up resistor required 100kHz Bus master clock stretching support is required

Clock stretching

Clock stretching pauses a transaction by holding the clock line low. The transaction cannot continue until the line is released to high again. Although the module could send the bytes of data at a fast rate, it could happen that the module is busy at the request time. It can then hold the clock line low after reception and acknowledgement of a byte to force the master into a wait state until the iAQ-engine module is ready for the next byte transfer in a type of handshake procedure. See official specification and user manual UM10204,

Address
Ordering information

Order code 60-0100

Comment iAQ-engine

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Datasheet ID: IAQ-ENGINE 519798