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WG AQS/TH-UP sensor

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WG AQS/TH-UP sensor

 • Version: 19.12.2018 • Technical changes and errors excepted. • Elsner Elektronik GmbH • Sohlengrund 16 • 75395 Ostelsheim • Germany • www.elsner-elektronik.de • 

Technical Service: +49 (0) 7033 / 30945-250

EN

WG AQS/TH-UP

Indoor Sensor

Technical specifications and installation instructions

Item numbers 20553 (white), 20554 (aluminium coloured)

1.

Description

The 

WG AQS/TH-UP sensor

 transmits via radio the temperature, humidity and

CO2 content of the air to the WS1 Colour/Style or (KNX) WS1000 Colour/ Style con-
troller. Several sensors can be "taught" on one controller. The teaching procedure is
described in the chapter "Learning wireless connections" (Controller manual).
The 

WG AQS/TH-UP

 consists of the housing, the sensor printed circuit board/base-

plate, the CO2 sensor and a frame. As an alternative to the frame provided, a frame
in the switch series used in the building can be used. You also need a junction box
(Ø 60 mm, 42 mm deep, not included in the deliverables).

For the power supply (11...30 V DC) e.g. 12 V DC can be drawn from the connector
board for the control system (multifunction-input).

Suitable for: 

WS1 Color, WS1 Style (from software version 1.819)

WS1000 Color, WS1000 Style (from software version 1.819)

KNX WS1000 Color, KNX WS1000 Style (from software version 1.819)

1.0.1. Deliverables

Housing

Baseplate (circuit board)

CO

2

-Sensor unit

Frame

You 

also

 need (not included in deliverables):

Junction box Ø 60 mm, 42 mm depth 

1.1. Technical specifications

The product is compliant with the provisions of the following EC guidelines.

1.1.1. Measurement accuracy

Deviations in measured values due to interfering sources (see chapter 

installation

site

) must be corrected in the controller menu in order to achieve the specified sen-

sor accuracy.

The specified 

CO

measurement accuracy 

is achieved after a run-in of 24 hours

(without voltage interruption), if the sensor comes into contact with fresh air
(350…450 ppm) at least once during this period. During the warm-up phase the rea-
ding may not be displayed at all or wrongly, or remain frozen at 2001.
After this, the CO

2

-sensor performs a self-calibration every two weeks, in which the

lowest CO

2

value measured during this period (without voltage interruption) is taken

as a reference for fresh air.
In order to ensure permanent accuracy, the sensor should be supplied with fresh air
at least once every two weeks. This is normally the case during room ventilation. 

The 

measured temperature and humidity values 

can be corrected in the cont-

roller menu. This may be necessary if the values at the sensor do not correspond to
the room average (for example, if the sensor is positioned in a location which is war-
mer than average). Please be aware that usable measured values can only be achie-
ved approx. two hours after putting the sensor into operation (warm-up phase). 

Radio connections > Status

 (In the controller manual)

System > Installation > Radio connection > Status > [Device]

2.

Installing the indoor sensor

2.1. Installation notes

Installation, testing, operational start-up and troubleshooting should 
only be performed by an electrician.

CAUTION!
Live voltage! 

There are unprotected live components inside the device.

National legal regulations are to be followed.

Ensure that all lines to be assembled are free of voltage and take
precautions against accidental switching on.

Do not use the device if it is damaged. 

Take the device or system out of service and secure it against
unintentional use, if it can be assumed, that risk-free operation is no
longer guaranteed.

The device is only to be used for its intended purpose. Any improper modification
or failure to follow the operating instructions voids any and all warranty and gua-
rantee claims.

After unpacking the device, check it immediately for possible mechanical damage.
If it has been damaged in transport, inform the supplier immediately.

The device may only be used as a fixed-site installation; that means only when as-
sembled and after conclusion of all installation and operational start-up tasks and
only in the surroundings designated for it.

Elsner Elektronik is not liable for any changes in norms and standards which may
occur after publication of these operating instructions.

2.1.1. Installation location

Install and use only in dry interior rooms. 
Avoid condensation.

When selecting an installation location, please ensure that the measurement results
are affected as little as possible by external influences. Possible sources of interfe-
rence include:

Direct sunlight

Draughts from windows and doors

Draughts from ducts which lead from other rooms, or the outside to the 
junction box in which the sensor is mounted

Warming or cooling of the building structure on which the sensor is mounted, 
e.g. due to sunlight, heating or cold water pipes

Connection lines and empty ducts which lead from warmer or colder areas to 
the sensor

Temperature deviations caused by such sources of interference must be corrected
in the control system menu, in order to achieve the specified sensor accuracy (see
manual chapter 

Wireless connections > Status

).

For a correct CO

2

 measurement it is necessary to install the device in a windproof

junction box.

Housing

Plastic (partially painted)

Colours

• White, glossy (similar to RAL 9016 Traffic White) 
• Matt aluminium

Assembly

Flush mounting (Flush mounting in junction box Ø 60 
mm, 42 mm depth)

Protection category

IP 20

Dimensions

Housing approx. 55 x 55 (W x H, mm), construction 
depth 
approx. 15 mm baseplate approx. 71 x 71 (W x H, 
mm)

Total weight

approx. 50 g

Ambient temperature

Operation -20…+70°C, storage -30…+70°C

Ambient humidity

max. 95% RH, avoid condensation

Operating voltage

11…30 V DC

Power

max. 35 mA

Data output

Via wireless

Wireless frequency

868.2 MHz

Protocol

own protocol (Elsner RF)

Temperature measurement 
range

-20…+70°C

Resolution (temperature)

0.1°C

Accuracy (temperature)

±0,6°C at -20...-10°C
±0,5°C at -10...+65°C
±0,6°C at +65...+70°C

Humidity measurement 
range

0…95% RH

Humidity resolution

0.1%

Humidity accuracy

±7,5% RH at   0...10% RH
±4,5% RH at 10...90% RH
±7,5% RH at 90…95% RH

Humidity drift

± 0.5% RH per year in normal atmosphere 

CO2 measurement range 0...2000 

ppm

CO2 resolution 

1 ppm

CO2 accuracy 

±50 ppm ±3% of the measured value

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