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Four Elms Road - Edenbridge
Kent - TN8 6AB - UK
Technical Overview
The SD-D duct smoke detector operates on the obscuration principle, using infrared technology and is designed specifically to cope with the
difficult measurement conditions in air ducts, such as high velocity and levels of dirt accumulation. The relay output is either auto or manual
reset relay output on detection of smoke.
Product Codes
SD-S
Duct smoke detector
Tel: +44 (0)1732 861200 - E-mail: sales@sontay.com - Web: www.sontay.com
Features and Benefits
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•
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Specification
Supply
Power consumption
Relay outputs (smoke & fault)
Minimum duct size
Maximum duct size
LED indication
Alarm relay (selectable)
Probe:
Housing:
Environmental:
Protection
Country of origin
Conformity
* Please see recommendations on page 2.
WEEE Directive:
© 2017 Sontay Limited. All rights reserved
1 of 3
Duct Smoke Detector
Manual or auto reset
Fault relay output
Self-test feature
24Vac/dc, ±20%
50mA max.
SPST 2A @ 48V
100 x 320mm
450 x 450mm*
ON in alarm
Manual or auto reset
Dimensions
300 x 20mm dia.
Material
Plastic
Material
PC/GF (Halogen free, flame retard
ant & UV stabilized)
Dimensions
125 x 105 x 85mm
Housing:
-30 to +60°C
20 to 80% non-condensing
Media:
10 to 40°C
IP65
Denmark
EMC, CE & UKCA Marked
At the end of the products useful life please
dispose as per the local regulations.
Do not dispose of with normal household waste.
Do not burn.
SD-D
Issue Number 7.1
30/09/2021
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Table of Contents
Related Manuals for Sontay SD-D
Summary of Contents for Sontay SD-D
- Page 1 Technical Overview The SD-D duct smoke detector operates on the obscuration principle, using infrared technology and is designed specifically to cope with the difficult measurement conditions in air ducts, such as high velocity and levels of dirt accumulation. The relay output is either auto or manual reset relay output on detection of smoke.
- Page 2 Calibration at start-up On power up the SD-D will start an automatic calibration procedure, the power from the TX device will increase in small steps, just until the RX device receives enough signal to validate the “link”. This is stored in the volatile memory for any further use, or until a new power on. Now any obstacles, like smoke will force an alarm.
- Page 3 The external LED will flash red if the detector fails. Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or expense resulting from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
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