FläktGroup eQ Controls STBZ-50 and STAZ-50 Installation and Maintenance Manual

Brand: FläktGroup

Model: eQ Controls STBZ-50 and STAZ-50

Type: Installation and Maintenance Manual

FläktGroup eQ Controls STBZ-50 and STAZ-50 are advanced 3-in-1 controllers. They combine all the data necessary to effectively regulate the indoor environment in buildings such as offices, hotels and schools. By combining CO2 measurement, temperature and humidity sensing, STBZ-50 and STAZ-50 enable demand-driven ventilation, resulting in a healthy, comfortable and cost-effective environment in the building. They have a change-over relay output and three separate 0-10V outputs as well as a pre-programmed combined output for CO2, temperature and relative humidity.

FläktGroup DC_9806GB 20180525_R0 We reserve the right to make changes without prior notice

CO2 SENSOR

STBZ-50, STAZ-50, STCZ-82

DATASHEET

FEATURES

• 3 sensors in one enclosure

• Infrared CO

measuring technology (NDIR)

• Internally separated measuring chamber for humidity and

temperature

• 5 year warranty

• Normally maintenance-free

• Reduces energy costs for demand-driven ventilation

FUNCTION

The sensor is an advanced and versatile 3-in-1 controller and

measures the CO

concentration, temperature and relative

humidity in the ambient atmosphere. It has a change-over

relay output and three separate 0-10V outputs, of which one is

pre-programmed as a combined output for CO

, temperature and

relative humidity.

This combined 0-10V output has three separate P bands for CO

(600-900 ppm), temp-erature (22-23 °C) and relative humidity

(75-85% RH). Configurations and preferences are set using a PC.

OPERATION

The sensor combines all the data necessary to effectively

regulate the indoor environment in buildings such as offices,

hotels and schools. The use of CO

measurement for demand-

driven ventilation results in a healthy, comfortable and cost

effective environment in the building.

INSTALLATION

The sensor is installed in a normal indoor environment on a

wall where it is not exposed to direct sunlight or draughts.

When installing the unit over a mounting box or conduit these

must be sealed so as to prevent draughts that could affect the

performance and accuracy of the unit.

Fig. 1 Terminal block for connection

NC Relay

COM Relay

NO Relay

OUT(3)

OUT(2)

OUT(1)

Max

24V AC/DC

+_ 20 %

Datasheet

FläktGroup DC_9806GB 20180525_R0 We reserve the right to make changes without prior notice

TECHNICAL DATA

Supply voltage: 12V DC, 24V AC/DC ± 20 %, (50-60Hz)

Power consumption Average:

Max./peak:

Output signal/P band:

Relay output:

< 0.35W

< 2W

Rout <100, Load: >5 k

Activated > 1000 ppm CO2

Deactivated > 900 ppm CO2

OUT1 Combined output:

CO2:

Temperature:

Relative humidity:

0-10V DC

600-900 ppm

22-23°C

75-85% RH

OUT2 CO2: 0-10V DC, 0-2000 ppm

OUT3 Temperature: 0-10V DC, 0-50 °C

CO2Accuracy:

Measuring method:

Measuring interval:

± 3 % of the measured value

NDIR

15 s

Temperature sensor Accuracy:

Measuring interval:

0,3 °C *2

15 s

Relative humidity: Accuracy*:

Measuring interval:

5 % RH (@ 20-80 % RH)

15 s

Relay Change-over potential-free: 1A, 50V AC/24V DC

Storage temperature:

Operating temperature:

Operating humidity:

Dimensions (HxWxD):

Enclosure class:

-30 to +70 °C

0 to +50 °C

0-95 % RH

125x85x22 mm

IP20

* Measurement accuracy depends on the installation of the product. See the heading INSTALLATION.

FläktGroup eQ Controls STBZ-50 and STAZ-50 Installation and Maintenance Manual

FläktGroup eQ Controls STBZ-50 and STAZ-50 Installation and Maintenance Manual

FläktGroup eQ Controls STBZ-50 and STAZ-50 Installation and Maintenance Manual

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