Schuch nD867.12L Series Operating Instructions Manual

Explosion-proof led emergency light fitting

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Explosion-proof LED Emergency Light Fitting
The safety of people and equipment in hazardous areas depends on the
!
observance of all safety standards. Exact knowledge about all applicable
regulations and standards is mandatory for installation maintenance and
repair of explosion proof equipment, especially
 the determinations of IEC/EN 60079-14 and IEC/EN 60079-17 for
maintenance of explosion-proof appliances
 the generally accepted rules of the technical side
 the national rules for prevention of accidents and for safety standards
 the safety instructions of these operating instructions
 the characteristic data on the type plate and the instruction plates
Adolf Schuch GmbH
Lichttechnische Spezialfabrik
Mainzer Str. 172, D-67547 Worms am Rhein
Postfach (P.B.) 2145, D-67511 Worms
Phone: +49 6241/4091-0
Telefax: +49 6241/4091- 29
- Operating Instructions
of series
nD867. 12L .. / . / .
Internet: www.schuch.de
E-Mail: info@schuch.de

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Summary of Contents for Schuch nD867.12L Series

  • Page 1 Adolf Schuch GmbH Lichttechnische Spezialfabrik Mainzer Str. 172, D-67547 Worms am Rhein Postfach (P.B.) 2145, D-67511 Worms Phone: +49 6241/4091-0 Internet: www.schuch.de Telefax: +49 6241/4091- 29 E-Mail: info@schuch.de - Operating Instructions Explosion-proof LED Emergency Light Fitting of series nD867. 12L .. / . / .
  • Page 2: Safety Instructions

    Replace damaged explosion-proof parts by original spare parts from the Adolf Schuch GmbH only.  The LED-modules of this light fitting must be replaced by A. Schuch GmbH, by a service technician who is instructed from Schuch or by any other person with equivalent qualification only.
  • Page 3: Operating Advice

    Against penetration of humidity into the light fitting a special explosion-proof breathing gland is often quite effective. It is allowed to use a breathing gland which is released by the Adolf Schuch GmbH only. If using a breathing gland please observe the general informations of it's operation instructions.
  • Page 4 2.1 Use at low temperatures The safety of the light fitting is warranted between -30°C up to +40°C/+55°C. At temperatures below 0 °C, it must be taken into account that the emergency battery will take longer to charge and the operational life of the emergency lighting mode will be reduced. Testing the duration of the battery life in lower ambient temperatures can therefore lead to a misleading result.
  • Page 5 the time that is required to fully charge the battery after the switching sequence. If the switch sequence has not been carried out correctly, or the aforementioned requirements have not been satisfied, the operational life test will not be conducted. If there was an error in the switching procedure, the entire switch sequence can only be repeated after 60 seconds have elapsed.
  • Page 6 2.4 LED-Signals The two-colored LED (red/green) which is integrated in the reflector of the light fitting does show the working condition and the error state of the fitting. The following states are possible: Permanent charging mode – Continuous green light: light fitting at mains operation, the emergency battery is being charged Blinking green light:...
  • Page 7: Technical Data

    3. Technical Data Series: nD867. 12L .. / . / . │ │ └─ Capacity of emergency battery │ └─ Nominal operating time in case of emergency └─ Index of luminous flux Explosion-proof LED Emergency Light Fitting for operating in hazardous areas of zones 2 and 22.
  • Page 8 Isolation class: Ingress protection: IP66 (When using an Ex-breathing gland see Section 2) Ambient temperatur: Version without battery box: -30 °C ... +35 °C / +40 °C (see type plate) Version with battery box: -30 °C ... +55 °C Power consumption: The power consumption of the LED is dependent on production fluctuations as well as on the service temperature.
  • Page 9: Installation

    4. Installation  The safety of this light fitting is only guaranteed as long as it is operated within its assessment threshold. Installation and maintenance must be done in accordance with the respective regulations!  The installation of explosion-proof light fittings must be done by Ex-skilled electricians only! ...
  • Page 10 4.2 Electrical connection  Screw the explosion-proof cable glands and explosion-proof locking screw supplied with the fitting into the borings of the housing by using the lock nuts (Torques see Chapter 3, Technical Data).  After mounting the light fitting housing insert the connection cable through the explosion-proof cable gland.
  • Page 11 Note for connecting armoured cable:  It is necessary to check back with the Adolf Schuch GmbH before installing other explosion-proof cable glands or explosion-proof locking screws than the ones supplied! Connecting an emergency battery In its delivery state, there is no electrical connection between the emergency battery and the emergency light unit.
  • Page 12 emergency battery, the emergency battery may be the cause, which might contain insufficient charge to be charged in the potentially explosive atmosphere. In this case, the emergency battery is to be removed as described in Section 6.3 and to be charged separately from the light fitting.
  • Page 13: Maintenance

     For applications in dusty atmospheres the light fitting must be cleaned before opening!  Ensure that no dust can get into the light fitting when it is open!  Replace damaged explosion-proof parts by original spare parts from the Adolf Schuch GmbH only! 6.3 How to replace the emergency battery...
  • Page 14 If a battery capacity failure was indicated before the light fitting was switched off, a operational life test will be carried out 24 hours after the power supply is re-established. The subsequent operational life tests will be conducted at 52 week intervals. If no battery capacity failure was indicated before the battery was changed, the interruption of the energy supply to the emergency light unit will result in a operational life test between 5 and 28 days later.
  • Page 15 immediately after the interruption of the power supply. During storage there will also be a gradual discharge of the battery. If the voltage drops below a certain level the battery will no longer be detected by the emergency electronic. Thus a battery contact failure will be indicated although the connection to the battery still exists.
  • Page 16 The test certificates are ready to be loaded down from our homepage - www.schuch.de - or we shall send it on request. Misprints, modifications and errors are excepted L-01394-4-05...

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