Gira 2381 Manual

Gira Ikke kategoriseret 2381

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Side 1/1

Installation and Operating Instructions

Device description

The ambient air sensor CO

is for monitor-

ing the concentration of carbon dioxide

(CO

) in the ambient air.

The invisible and odourless gas CO

exists

naturally with a nominal concentration of

approx. 380 ppm (0.038%) in the air. It is

created by the burning of fossil fuels, by

human exhalation and other factors. An

excessive concentration of CO

in ambient

air negatively affects ability to concentrate

and perform.

The ambient air sensor CO

helps identify a

high CO

concentration, which is optically

and/or acoustically indicated.

The control of devices such as fans must be

implemented via external actuators.

Fig. 1: Device components

(1) Flush-mounted insert

(2) Frame

(3) Top unit

Installation

Recommended installation height: 1.10 m

Select the installation location so that the

device is exposed to the room's normal air

circulation.

Fig. 2: Rear of flush-mounted insert

• Apply 230 V AC power supply to the L and

N terminals on the rear of the flush-

mounted insert (see figure 2).

• Actuators are connected via the terminals

NO / COM / NC on the rear of the flush-

mounted insert (see figure 2 and the 'Ze-

ro-voltage contact' section).

• Screw insert to the flush-mounted box.

• Before the device top unit with the frame

is applied to the flush-mounted insert,

carry out settings to the measuring mod-

ule (on the device top unit) if required.

See the 'Settings' section, figure 4.

Function

The LED lights up green when the device is

in normal system state. Normal system

state is defined according to the set limit

value. If CO

concentration is detected

above the settable limit value (800 -

1500 ppm) the LED changes to red and a

signal sound is heard (if set) - the device is

in alarm state.

As long as the CO

concentration is above

the set limit value the device remains in

alarm state (red LED and signal sound). If

the CO

concentration reduces below the

limit value the device switches back to nor-

mal system state (green LED).

The LED display (green with normal system

state) and the signal sound with an alarm

can be deactivated: see the 'Settings' sec-

tion.

Device states

Settings

Fig. 3: Removing the device top unit

To carry out settings to the device the top

unit must be pulled out of the flush-

mounted insert. Setting possibilities are

then located on the rear of the device top

unit. See figure 4.

• Apply a screwdriver to the slot intended

for this purpose and carefully lever up the

cover with the top unit.

Fig. 4: Device top unit (rear)

• The DIP switch (1), designated with a

loudspeaker symbol, enables the alarm

sound to be switched on or off.

• The DIP switch (2), designated with a light

symbol, enables the green LED (lit in nor-

mal system state) to be switched on or

off.

• The CO

limit value, by which the device

changes from normal state to alarm state,

can be adjusted with a screwdriver at the

potentiometer. The values (8 - 15) on the

scale specify the CO

limit value when

multiplied by 100.

Zero-voltage contact

The ambient air sensor CO

has a zero-volt-

age contact to which an actuator must be

connected. The connection terminals of the

zero-voltage contact are located on the rear

of the flush-mounted insert (see figure 2).

The zero-voltage switching contacts can be

used for controlling ventilation or for for-

warding information to an air-conditioning

monitoring system for example.

Technical data

Warranty

We provide a warranty in accordance with

the statutory requirements.

Please send the device postage paid with

error description via the specialist trade to

our central customer service centre.

Gira

Giersiepen GmbH & Co. KG

Service Center

Dahlienstraße 12

42477 Radevormwald

Important

The zero-voltage contact is only to be used as

a control output.

The direct connection of consumers is not per-

missible.

Electrical devices may only be

mounted and connected by qualified

electricians!

DANGER

Serious injury (e.g. caused by an electric

shock), fire, or material damage are possible

if mounted improperly.

• In order to avoid electric shock, de-ener-

gize cables when working on the ambi-

ent air sensor CO

(switch off circuit

breaker).

Unfavourable installation locations

may lead to corruption of measure-

ment results!

Do not mount the device within shelf walls

or behind curtains or similar coverings.

Avoid outside walls and draughts!

(1)

(2)

(3)

Observe alignment of the device

when being inserted into the flush-

mounted box.

Arrows and 'TOP' point upwards, see

figure 1, flush-mounted insert (1).

Observe the initialisation time!

The device requires approx. 5 minutes after

voltage application before it can begin

with measurement of ambient air.

Normal system

state

LED: Green (delivered state)

Signal sound Off

Relay contact NC / COM closed

NO / COM open

Alarm state

LED: Red

Signal sound On (delivered state)

Relay contact NC / COM open

NO / COM closed

"ppm" stands for

parts per million.

1000 ppm CO

corresponds to

0.1% CO

content in the air.

(3)

(2)

(1)

Operating voltage: 230 - 240 V AC /

50 - 60 Hz

Power consumption: approx. 2.5 W

Ambient

temperature: -5 °C to +50 °C

Storage tempera-

ture:

-25 °C to +75 °C

Humidity: max. 90 %

Protection type: IP 20

Connection

terminals: Ø to 2.5 mm

Rated surge

voltage:4 kV

Max. switching cur-

rent

4 A at 250 V

Sensor sensitivity for

: 350 - 2000 ppm

Limit value range for

alert can be step-

lessly adjusted: 800 - 1500 ppm

Measurement

precision: +/- 100 ppm

Type of action: 1.C

Software class and

structure: A

Pollution severity: 2

Mounting: Flush-mounted box

(deep box recom-

mended)

Ambient air sensor CO

2381 ..

Giersiepen GmbH & Co. KG

Electrical Installation

Systems

P.O. Box 1220

42461 Radevormwald

Phone +49 (0) 2195 / 602 - 0

Fax +49 (0) 2195 / 602 - 339

www.gira.com

info@gira.com

499250 34/15

Produkt Specifikationer

Mærke:	Gira
Kategori:	Ikke kategoriseret
Model:	2381

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