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Calectro AB   Phone: +46 31-69 53 00   [email protected]   www.calectro.com

UG-5-AFR-230V UNIGUARD SUPERFLOW STAND-ALONE-UNIT

Optical smoke detector with service alarm, for duct installation.

Electronic air-flow indication.

CHARACTERISTICS
-  Automatic sensitivity adjustment enables longer 

lifespan and fewer false alarms due to contamination

-  Patented venturi pipe

-  One-pipe air sampling system Uniguard Superflow 

-  Service alarm

-  Test hole on cover

-  Simple installation

-  Electronic air-flow indicator

FUNCTION

Uniguard has been developed to detect smoke in ventilation 

ducts and combines a smoke detector and an adaptor system 

where both tube and housing are specially designed for 

optimum airflow through the smoke detector.
The UG-5 can be installed on any side of the duct in four 

different positions: 0°, 90°, 180° and 270°. Patented.
Relays:
• Two 

alarm relays

 to control fire-safety dampers, to stop 

ventilation fans or to activate acoustic and optical alarms etc.

• One 

service alarm relay

 to let you know when maintenance 

is needed, before a false alarm occurs.

• One 

system error relay

 indicating fault on the smoke 

detector circuit.

• One 

Low-Flow relay

 indicating that air flow in the duct is low 

or that the UG-5 is installed in an inexpedient place on the 

duct.

Any receiving device of relay status should consider alarm 

indications up to 10 milliseconds as normal no-alarm condition. 

Receiving devices can be: Actuator for fire/smoke dampers, 

fire alarm panels, smoke evacuation fans etc.
The detector contains an intelligent controlling circuit. This 

circuit is adjusting the sensitivity to give an optimal function 

during the whole life time of the detector. When the controlling 

circuit has reached the maximum sensitivity compensation for 

contamination, a service alarm is indicated.
The detector has a bayonet fitting to simplify mounting and 

removal.

ORDERING EXAMPLE

Item code 

Designation

UG-5-AFR-230V  Optical duct smoke detector, stand alone

ACCESSORIES
Item code 

Designation

UG-MB-75 

Mounting bracket (for insulated/ 

 

circular ducts)

UG-COVER-75 

Waterproof housing (for mounting 

 

outdoors, in cold attics etc.)

ST1* 

Venturi tube (length 0,3 m) 

ST2* 

Venturi tube (length 0,6 m) 

ST5* 

Venturi tube (length 1,5 m) 

ST9* 

Venturi tube (length 2,8 m)

ST-EXTEND 

Extension of venturi tube VR & ST, 1.06M

* The venturi tubes are sold separately.

TECHNICAL DATA
Voltage Supply:

 

230V AC -15%, +10% 

 

Not polarity sensitive

Detector type: 

 

Optical UG-5-AFR-230V

Max. power consumption:

 30 mA

Operating temperature:

  -10°C to +55°C

Maximum humidity:

 

99% rH

Duct air velocity range:

  1 to 20 m/s

Approvals: 

VdS, CE, EN-54-27

Relay output:

 

Potential free

Smoke alarm relays: 

Two changing contacts 250V, 8A

Service alarm: 

One breaking contact 250V, 5A

System error alarm: 

One breaking contact 250V, 5A

Low Flow alarm: 

One breaking contact 250V, 5A

LED on smoke detector: 

Green - service alarm 

 (contamination)

 

Red - smoke alarm

LED on PCB: 

Green - normal operation

 

Yellow - system error

 

Yellow - Low-Flow

Adaptor housing:

 ABS

Protection class:

 IP54

Air sampling tube: 

Aluminium.

Standard length 0,6 m. Hole diameter 38 mm.

The length of the venturi pipe shall be chosen based upon how 

wide the ventilation duct is. The venturi pipes are available in 

4 lengths; 0,3 m, 0,6 m, 1,5 m and 2,8 m. When the ventilation 

duct is wider than 0,6 m (dia), the venturi pipe should penetrate 

the 

whole 

duct. Please see below sketch.

Shorten the tube to correct length.
Insert the end plug.
Put on the end plastic

gasket.
Put on the rubber

gasket, HFU204.

NOTE!

Drill a hole 

Ø 51 mm.

Drill a hole

Ø 38 mm.

Drill a hole

Ø 38 mm.

Max diameter of the duct 0,6 m.

Use the venturi tube 0,3 or 0,6 m.

Shorten the tube, if necessary.

For ducts with a ø of less than 0,6 m use the 0,6 m pipe.

For ducts with a ø of between 0,6 m and 1,4 m use the 1,5 m pipe.

For ducts which are larger than 1,4 m use the 2,8 m pipe.

The venturi tube shall not

protrude more than 30 mm

through the duct wall.

Diameter of the duct bigger

than 0,6 m.

The venturi tube should 

penetrate the whole duct.

©

 2021.12.21 R2.0   Calectro 

AB   HFE554 EN

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