Lumel DZ2, User Manual

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Remarks concerning the operator safety:
1. General
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The digital clock is destined to be installed inside or outside buildings.
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Non-authorized removal of the required housing, inappropriate use, incorrect installation or opera-
tion create the risk of injury to personnel or damage to equipment. For more detailed information
please study the user’s manual.
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All operations concerning transport, installation, and commissioning as well as maintenance must be
carried out by qualified, skilled personnel and national regulations for the prevention of accidents
must be observed.
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According to this basic safety information, qualified, skilled personnel are persons who are familiar
with the installation, assembly, commissioning, and operation of the product and who have qualifi-
cations necessary for their occupation.
2. Transport, storage
Please observe the notes on transport, storage and appropriate handling.
Observe the climatic conditions given in Technical Data.
3. Installation
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The DZ digital clock must be installed according to the regulation and instructions given in this user’s
manual.
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Ensure proper handling and avoid mechanical stress.
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Do not bend any components and do not change any insulation distances.
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Do not touch any electronic components and contacts.
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Electronic devices may contain electrostatically sensitive components, which can easily be dama-
ged by inappropriate handling.
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Do not damage or destroy any electrical components since this might endanger your health!
4. Electrical connection
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Before switching the digital clock on, one must check the correctness of connection to the network.
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In case of the protection terminal connection with a separate lead one must remember to connect it
before the connection of the digital clock to the mains.
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When working on live instruments or devices, the applicable national regulations for the prevention
of accidents must be observed.
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The electrical installation must be carried out according to the appropriate regulations (cable cross-
sections, fuses, PE connection). Additional information can be obtained from the user’s manual.
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Do not connect the digital clock to the mains via an autotransformer.
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The documentation contains information about installation in compliance with EMC (shielding, groun-
ding, filters and cables). These notes must be observed for all CE-marked products.
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The manufacturer of the installation or installed auxiliary devices is responsible for the compliance
with the required limit values demanded by the EMC legislation.
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The
RS-485 socket
serves only for the connection of digital clocks operating with the MODBUS
protocol.
5. Operation
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Installations including DZ2 or DZ3 digital clocks must be equipped with protection devices accor-
ding to the corresponding standard and regulations for prevention of accidents.
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After the digital clock has been disconnected from the supply voltage, live components and power
connections must not be touched immediately because capacitors can be charged.
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The housing must be closed during operation.