
EK280
Application Manual
44
CAUTION!
Reduced battery life
Activation of electrical isolation of outputs reduces battery life when operating the battery.
More information on the influences on battery life can be found in Chapter 10.3.4 "
isolation (galvanic separation)
i
Galvanic separation of the outputs is not relevant with regard to hazardous areas.
If using the EK280 in hazardous area 1 then a permitted, external separator is required which
is suitable for use in hazardous areas.
i
An electrically isolated output only requires electricity provided that the output is active
(switched on). It is possible to minimize the negative influence of an electrically isolated
output on battery life by setting the pulse duration to as low a value as possible when using
as a pulse output.
The parameterization software "enSuite" is suitable for this purpose.
To activate the electrical isolation of an output, please push the switch lever behind the relevant output terminal
away from the terminal:
Fig. 4
Switch for electrical isolation
Output "DA3" is electrically isolated
(the slider on the switch is up)
Outputs "DA1", "DA2", "DA4" are not
electrically isolated (The sliders on the
switches are down)
6.10
Securing the outputs
Each output can be individually secured against manipulation by means of a terminal cover and also be sealed
with an adhesive seal if required. Terminal covers are delivered in the bag of accessories. If necessary, screw
into position via the terminals connected and then stick a seal onto the fixing screw (see below).
Fig. 5
Output "DA1" is protected with a terminal cover.
An adhesive label can now be adhered over the
screw for sealing.
i
Sealing for securing pulse inputs and outputs is subject to national law (see WELMEC 11.1,
chapter 2.7.1).
Depending on the legal situation in the country of use, seals from a group of people set out
in law or from meter operators must be used.
If devices are delivered with connected input and/or output cables then seals with the
manufacturer's symbol are applied at the plant. If necessary, these can be substituted on site.
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