BEKA BA364G, Руководство пользователя

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Fig 7 Installation procedure
5.3 Counter earthing
The BA367NE has an M4 earth stud on the rear
panel which should be electrically connected to the
panel enclosure in which the Counter is mounted, or
to the plant equipotential conductor.
5.4 EMC
The BA367NE complies with the requirements of the
European EMC Directive 2014/30/EU. For specified
immunity all wiring should be in screened twisted
pairs, with the screens earthed at one point in the
safe area.
Fig 8 Terminals for field wiring
5.5 Scale card
The Counter's units of measurement are shown on a
printed scale card in a window at the right hand side
of the display. The scale card is mounted on a
flexible strip that is inserted into a slot at the rear of
the instrument as shown in Fig 9. Thus the scale
card can easily be changed without dismantling the
Counter or removing it from the Ex n enclosure in
which it is mounted.
New Counters are supplied with a printed scale card
showing the requested units of measurement, if this
information is not supplied when the instrument is
ordered a blank card will be fitted.
A pack of self-adhesive scale cards printed with
common units of measurement is available as an
accessory from BEKA associates. Custom printed
scale cards can also be supplied.
To change a scale card, unclip the protruding end of
the flexible strip by gently pushing it upwards and
pulling it out of the enclosure. Peel the existing
scale card from the flexible strip and replace it with a
new printed card, which should be aligned as shown
below. Do not fit a new scale card on top of an
existing card.
Install the new scale card by gently pushing the
flexible strip into the slot at the rear of the Counter,
when it reaches the internal end-stop secure it by
pushing the end of the flexible strip downwards so
that the tapered section is held by the Counter rear
panel.
Align the self-adhesive printed
scale card onto the flexible strip
and insert the strip into the
indicator as shown below.
Fig 9 Inserting flexible strip carrying scale card
into slot at the rear of Counter.
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