Power supply

Operating voltage
QAA2890/WI, QFA2890/WI
QPA2892/WI


DC 4.5 V (3 x 1.5 V AAA alkaline batteries)
DC 3 V (2 x 1.5 V AA alkaline batteries)

Battery lifetime
QAA2890/WI
QFA2890/WI
QPA2892/WI


Up to 10 years* (10 minutes wake-up cycle)
Up to 10 years* (10 minutes wake-up cycle)
Up to 7 years* (10 minutes wake-up cycle)

Power consumption
QAA2890/WI, QFA2890/WI
QPA2892/WI


Max. 20 mA
Max. 250 mA

*The battery lifetime is calculated based default settings and normal operation. Battery lifetime may change depending on environment conditions and device settings.

Radio communication

Frequency range

2400…2483.5 MHz

Maximum transmission power

7.73 dBm

Protocol

Thread based KNX IoT

MAC protocol

IEEE 802.15.4

Thread channels

11...26

Communication range *

Distance (line of sight)

  • Sensor and gateway
  • Sensor and extender

 

  • Max. 50 m
  • Max. 50 m

* Results are tested in Siemens testing environment. The actual range depends on building structure and environment.

Functional data of sensor

Humidity sensor

Measuring range

0…100 % r.h.

Measuring accuracy at

30...70 % r.h.

0...30 % r.h./70...100 % r.h.

 

±2 % r.h.

±5 % r.h.

Time constant t63

20 s

Temperature sensor

Measuring range

0...50 °C

Measuring accuracy at

21…25 °C

15…21 °C/25…35 °C

0…15 °C/35…50 °C

 

±0.3 K

±0.7 K

±1 K

Time constant t63

≤ 8.5 min (depending on air movement and thermal coupling to the wall)

CO2 sensor

Measuring range

0...5000 ppm

Measuring accuracy at

0...2000 ppm

 

±(50 ppm+2 % m.v.)

Time constant t63

5 min

Ambient conditions and protection classification

Protection degree of housing

IP30 according to EN60529

Protection class

III according to EN60730

Environmental conditions

  Storage

    Climatic conditions

      Temperature

      Humidity

    Mechanical conditions

  Transport

    Climatic conditions

      Temperature

      Humidity

    Mechanical conditions

  Operation

    Climatic conditions

      Temperature (housing with electronics)
        QAA2890/WI & QFA2890/WI
        QPA2892/WI

      Humidity
        QAA2890/WI & QFA2890/WI
        QPA2892/WI

    Mechanical conditions

 

 

 

-15...+50 °C

0…95 % r. h. (non-condensing)

Class 1M2

 

 

-25...+70 °C

<95 % r.h.

Class 2M2

 

 


-15...+50 °C
0...50 °C


0…95 % r. h. (non-condensing)
0…85 % r. h. (non-condensing)

Class 3M2

Standards, directives and approvals

Product standard

EN 60730-1

EN 301489-1

EN 301489-17

EN IEC 62311

EN 300328

Electromagnetic compatibility (Applications)

For use in residential, commerce, light-industrial and industrial environments

EU conformity (CE)

A5W00277721A *)

RCM conformity

A5W00277724A *)

UKCA conformity

A5W00277723A *)

UL

UL 873, http://ul.com/database

RoHS

Directive 2011/65/EU restriction of the use of certain hazardous substances in electronic equipment

Environmental compatibility

The product environmental declaration (A5W00279084A *) contains data on environmentally compatible product design and assessments (RoHS compliance, materials composition, packaging, environmental benefit, disposal).

General

Materials and colors

Makrolon 6485, RAL9003

Sensor (complete assembly)

Silicone

Packaging

Corrugated cardboard

Weight including package
QAA2890/WI
QFA2890/WI
QPA2892/WI


Approx. 204.6 g
Approx. 204.6 g
Approx. 228.3 g

*) The documents can be downloaded from http://siemens.com/bt/download.