CALECTRO UG8-O Manual

UG8-O UNIGUARD SMOKE DETECTOR
Optical smoke detector with in-built service alarm for use in ventilation ducts
Free-rotation in any direction
TECHNICAL DATA
Supply voltage: 24V DC from the control unit
Detector type:
Optical
Operating current: ~ 0.04 mA
Service alarm current: ~ 10 mA (at 22V)
Alarm current: ~ 40 mA (at 22V)
Ambient temperature: -20°C to +55°C
Humidity: Max. 99% RH
Tested and approved:
Smoke detector according to
EN 54-7
Smoke detector LED
– Red: Smoke alarm
– Green: Service/contamination alarm
Material
– Adaptor enclosure: PC/ABS
– Venturi tube: Aluminium
Protection class:
IP65
Calectro AB Phone: +46 31-69 53 00 info@calectro.com www.calectro.com
FEATURES
– Service alarm
– Automatic sensitivity adjustment
– Test hole on the cover
– Easy installation
– Flow indicator
– Simple service and maintenance
– Complete with pre-mounted cable entries
FUNCTION
The UG8 Uniguard has been developed to measure smoke
in ventilation ducts and consists of a smoke detector and
duct enclosure system, specially-designed for optimal airflow
through the smoke detector.
The UG8 can be mounted on either side of the duct. The UG8
comes a rotating section that, together with your chosen
Venturi tube, is mounted on the ventilation duct. It also has a
"FLOW arrow" for easy installation in the correct direction for
the airflow. The direction of the arrow should correspond with
the direction of the airflow in the duct. The patent-pending
detector enclosure with cable inputs can be rotated in any
direction to suit the characteristics of the mounting location.
Both the smoke detector chamber and connection chamber
covers have snap locks for quick access.
EVC-PY-DA has an intelligent monitoring circuit that constantly
checks and adjusts the sensitivity for optimum functionality
throughout its service life. When the detector can no longer
compensate for contamination and starts to approach a false
alarm, a service alarm will be indicated.
The detector is fitted with a bayonet mount, making it easy to
fit and remove. The UG8 can be used with Calectro's ST280
and ST580 Venturi tubes, as well as the extension tube
ST-EXTEND.
BASIC PRINCIPLES OF PLACEMENT
In order for the airflow through the Uniguard to be
representative of the airflow in the ventilation duct, the
Uniguard should be placed as an airflow meter would be. See
the installation guide supplied with the product.
You can also use national or local rules for mounting in
accordance with "Methods for measuring airflow in ventilation
installations".