Charging; Inspection And Maintenance - NEC Ultra2 User Manual

II 2 G Ex ib IIC T4 Gb
II 2 D Ex ib IIIC T135°C Db
This marking means that the Ultra2 work light has been designed for industrial applications
and that it complies with the requirements for Category 2 equipment used in potentially
hazardous areas due to the presence of gas, mist, vapor or dust. This makes the Ultra2 work
light suitable for use in Zones 1, 21, 2 and 22.
The protection technique used is Intrinsic Safety. Gas group IIC and dust group IIIC also
apply. The temperature class for the ignition of gas, mist or vapor is T4. The maximum
surface temperature for the ignition of dust is 135°C.
Compliance with the Essential Health and Safety Requirements in the ATEX Directive is
achieved through application of the harmonized technical standards EN 60079-0:2018
(General Requirements) and EN 60079-11:2012 (Intrinsic Safety). In the context of the EN
60079-0:2018 standard, the Ultra2 work light is considered to be transportable equipment
that is switched off during transport.
The Ultra2 work light is suitable for ambient temperatures of -20 °C to +45 °C.
No special conditions apply for safe use of the work light.
6.

Charging

The Ultra2 work light may only be charged in a safe area using the supplied NEC+ charger.
Use of any other charger may invalidate the intrinsically safe protection of the Ultra2 work
light. The work light may be charged at an ambient temperature of 0 °C to +40 °C.
The NEC+ charger may only be used indoors and in a clean and dry location.
The standby time of the Ultra2 work light is more than one year. The work light should be
regularly charged to prevent the battery voltage from decreasing too much due to self-
discharge. This can cause permanent damage to the batteries, limiting the life span.
The work light switches itself off when the batteries are almost empty. The work light must
then be charged, preferably within two weeks, to prevent further reduction of the battery
voltage and the battery life span due to self-discharge.
7.

Inspection and maintenance

Maintenance of the Ultra2 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 Ultra2 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 Ultra2 work light is
manufactured from electrically conductive (antistatic) materials that prevent the housing from
becoming electrostatically charged due to friction during cleaning.
User manual explosion-proof Ultra2 rechargeable LED work light
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02-2019
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