BEKA Advisor A90-SS, Manual

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4.4 Installation Procedure
a. Cut the aperture specified in Fig 6 in the
panel enclosure. Ensure that the edges of
aperture are de-burred.
b. Inspect the meter's captive gasket and
ensure that it is not damaged before inserting
the meter into the panel enclosure aperture.
c. If the enclosure panel is less than 1.0mm
thick, or is non-metallic, an optional BEKA
stainless steel support plate should be slid
over the rear of the indicator before the panel
clamps are fitted to evenly distribute the
clamping force and prevent the enclosure
panel being distorted or creeping.
d. Slide a panel clamp into the two grooves at
each corner of the indicator housing with the
M3 stud protruding through the hole at the
rear of the clamp. Fit the stainless steel
spring
washer over the stud and secure
with the stainless steel wing nut.
e. Evenly tighten the four clamps to secure the
instrument. The recommended minimum
tightening torque for each wing nut is 22cNm
(1.95 lbf in).
f. Connect the panel enclosure wiring to the
rear terminal blocks. The terminals may be
removed from the instrument by pulling.
Fig 7 Fitting panel mounting clamps
4.5 Scale card
The meter’s units of measurement may be shown
on a scale card visible through a window at the
right hand end 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 8.
Thus the scale card can easily be changed without
removing the meter from the panel or opening the
instrument enclosure.
New meters are supplied with a printed scale card
showing the requested units of measurement. If
this information is not supplied when the meter 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 indicator,
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 indicator as
shown below.
Fig 8 Inserting flexible strip carrying scale card
into slot at the rear of the A90-SS meter.
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