Inspection And Maintenance; Repair - NEC Ultra3 User Manual


Select an installation/use location with an ambient temperature from -20 °C to +50 °C.
Do not cover the Ultra3 LED work lamp to avoid heating to above the design limits.
Remark: The electronics will reduce power to the LEDs as soon as the internal
E
temperature rises to over 80 °C, and at 85 °C the work lamp switches off completely to
protect the electronic circuits. If this happens, an environment with a lower temperature
must be chosen or the ventilation must be improved.

The Ultra3 LED work lamp can be connected to a supply voltage of 24 – 48 V AC/DC
with a minimum power of 35 W.

Disconnect the electrical power supply before installation.

Connect the end of the cable in an explosion-proof terminal box or connector according
to good practices. Ensure that the terminal box or connector is suitable for the
environment in which it is used.

The cable must be connected to a suitable explosion-safe terminal box or connector. To
do this, follow the EN 60079-14 installation standard, particularly the requirements for
mobile and portable equipment.
7.

Inspection and maintenance

Maintenance of the Ultra3 work light is subject to the requirements stipulated in the EN-
60079-17 standard and the relevant local regulations.
If the housing, handgrip or lens of the Ultra3 work light are cracked, dented or broken or are
no longer in good condition for any other reason or if the work light has become very dirty,
the light must be repaired and/or cleaned. The housing of the Ultra3 work light is
manufactured from electrically conductive (antistatic) materials that prevent the housing from
becoming electrostatically charged due to friction during cleaning.
If one of the LEDs is no longer working or is shining much brighter than the other LEDs, the
work light must be repaired. The work light may only be used again in a potentially explosive
atmosphere after an approved repair has been carried out.
The required maintenance interval depends on specific use of the work light and should
therefore be based on the expected application by the user. An interval of 12 months is
recommended as a general guideline for light use.
The housing contains no parts that are important for use, maintenance or inspection, so the
user never needs to open it.
8.

Repair

The Ultra3 work light may only be repaired with original parts, and repairs may only be
carried out by qualified professionals who have been trained on the basis of the EN-60079-
19 standard.
User manual explosion-safe Ultra3 LED work light
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07-2019