BEKA BA364G, Manual

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5. INSTALLATION
5.1 Location
When installed in a panel enclosure complying with
the requirements for Ex n protection the BA367NE
may be located in a Zone 2 hazardous area
providing that the operating temperature is between
–40°C and +60°C and the installation complies with
the Counters certification requirements. Certified
Ex e panel enclosures are frequently used as Ex n
panel enclosures.
The BA367NE Counter has a stainless steel
housings with a 7J front of panel impact resistance
incorporating a 10mm thick toughened glass window
which can withstand a 4J impact. This, together
with a captive silicone gasket which seals the joint
between the instrument and the panel, enclosure
provides IP66 ingress protection. The BA367NE has
IP20 rear protection.
Although the front of the BA367NE Counter has IP66
protection, it should be shielded from continuous
direct sunlight and severe weather conditions.
Fig 6 shows the overall dimensions of the BA367NE
together with the recommended panel enclosure cut-
out dimensions.
5.2 Installation Procedure
a. Cut the aperture specified in Fig 6 into the panel
enclosure. Ensure that the edges of aperture are
de-burred.
b. Inspect the Counter's captive gasket and ensure
that it is not damaged before inserting it 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. To simplify installation, the
terminals are removable so that wiring can be
completed before the instrument is installed.
Wiring should be supported to prevent damage
resulting from vibration.
g. Finally, fit a silicone rubber push-on cap to the
end of each M3 threaded rod.
Support panel wiring to prevent vibration damage
Note: Optional backlight is internally powered
Fig 6 Dimensions and terminals
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