BEKA BA568E, Руководство пользователя

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4.3 Installation Procedure
a. Cut the specified aperture in the panel. To
achieve an IP66 seal between the instrument
enclosure and the instrument panel the
aperture must have the tighter tolerances
specified in Fig 3.
b. Slide the gasket over the body of the BA568E
Counter before inserting the instrument into
the panel aperture.
c. Firstly ensure that all the panel mounting
clamps are closed by turning the knurled
screws fully anti clockwise until the two pips in
the clamp foot align with holes in the clamp
body.
d. Place a clamp in the recess on each side of
the Counter, pulling gently to slide it onto the
dovetail as shown in Fig 4. Push the knurled
screw slightly forward to engage the thread
and tighten by turning clockwise until it is just
finger tight. When all clamps are fitted ensure
that the gasket behind the front panel bezel is
correctly positioned before fully tightening the
clamps to secure the instrument. The
maximum recommended clamp tightening
torque is 22cNm (1.95 lbf in) which is
approximately equivalent to finger-tight plus
one half turn.
Do not over tighten .
e. Four panel mounting clamps are required to
achieve an IP66 seal between a BA568E
Counter and the instrument panel.
f. Connect the panel wiring to the rear terminal
block(s) as shown in Fig 3. To simplify
installation, the terminals are removable so
that the panel wiring can be completed before
the instrument is installed. To prevent
vibration damage
ensure panel wiring is
supported .
Fig 4 Fitting panel mounting clamps
4.4 Scale card
The Counter’s units of measurement may be 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 5. Thus the scale
card can easily be changed without removing the
Counter from the panel or opening the instrument
enclosure.
New BA568E 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 is available as an accessory from
BEKA associates. Custom printed scale cards can
also be supplied.
To change a scale card, unclip the tapered end of
the flexible strip at the rear of the instrument 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 rear panel.
Align the self-adhesive printed
scale card onto the flexible strip
and insert the strip into the
Counter as shown below.
Fig 5 Inserting the flexible strip carrying the scale
card into slot at the rear of the BA568E Counter.
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