BEKA BA577E-SS, Manual

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3. INSTALLATION
3.1 Location
The BA577E-SS has a stainless steel case with a
10mm thick toughened glass window. The case
provides 7J and the window 4J front of panel impact
protection. The captive silicone gasket, which seals
the joint between the instrument and the panel
enclosure, ensures IP66 front of panel ingress
protection. The rear of the Timer or Clock has IP20
protection.
Fig 4 shows the overall dimensions of the
BA577E-SS together with the recommended panel
enclosure cut-out dimensions and terminal locations.
3.2 Installation Procedure
a. Cut the aperture specified in Fig 4 in the panel
enclosure. Ensure that the edges of aperture are
de-burred.
b. Inspect the Timer or Clock's captive gasket and
ensure that it is not damaged before inserting the
instrument 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
Counter 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.
Cables should be mechanically secured to ensure
terminals are not damaged by 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 4 Dimensions and terminals