Information for ruling 600011063
This section is Advance Tariff Ruling
- Start date
- 02 Sep 2024
- Expiry date
- 01 Sep 2027
- Commodity code
- 9027500000 (opens in new tab)
- Description
- The Series 65 Optical Smoke Detector has a moulded self extinguishing white polycarbonate case with wind resistant smoke inlets. Inside the case a printed circuit board has the optical system mounted on one side and the signal processing electronics on the other. The sensing chamber is a moulding configured as a labyrinth which prevents penetration of ambient light. The labyrinth has a fine gauze insect-resistant cover. The chamber houses an infrared light emitting diode (LED). Every three seconds the LED emits a burst of collimated light, modulated at 4 kHz. The Smoke Detector works on the light scatter principle (Photo-electric detection of light scattered in a forward direction by smoke particles). It is for applications where slow burning or smouldering fires are likely, and is unaffected by wind or atmospheric pressure. The Chamber configuration is a Horizontal optical bench housing an infrared emitter and sensor arranged radially to detect scattered light. The emitter is a GaAs infra-red light emitting diode, and the sampling frequency is one every three seconds, with sensitivity response threshold value of 0.15 dB/m obscuration, when measured in accordance with EN 54-7. Specifications are typical at 24 V, 23°C and 50% RH. Supply voltage is 9 V to 33V dc. Alarm indicator is a clear light emitting diode (LED) emitting red light. Operating Temperature -20°C to + 60°C. Dimensions 100 mm diameter x 42 mm height Weight 99 g The housing is made from White flame-retardant polycarbonate and the Terminals are made from Nickel plated stainless steel.
- Keywords
-
- SMOKE DETECTORS
- LED
- ALARMS
- SENSORS
- INFRARED
- Justification
- Classification has been determined in accordance with the following: For the purposes of determining the commodity codes within which goods most appropriately fall, Reg 3 (1) of The Customs Tariff (Establishment) (EU Exit) Regulations 2020 sets out that the rules of interpretation contained in the following have effect – a. Part Two (Goods Classification Table Rules of Interpretation) of the Tariff of the United Kingdom (Reg 3(1)(a); and b. Notes to a section or chapter of the Goods Classification Table (Reg 3(1)(b)) GIR 1 has been used to classify this product by the terms of heading 9027 - Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes GIR 6 - has been used to classify the goods to subheading level 902750 - Other instruments and apparatus using optical radiation (UV, visible, IR) Also classified in accordance with : Harmonised System Explanatory Notes (HSENs) to heading 9027