8
Recommended panel cut-out
dimensions for all installations
Mandatory to achieve an IP66 seal
between instrument and panel
136 +0.5/-0.0 x 66.2 +0.5/-0.0
DIN 43700
138.0 +1.0/ -0.0 x 68 +0.7 -0.0
Support panel wiring to prevent vibration damage
Note:
Optional backlight is internally powered
Fig 5 BA578E dimensions & terminals
3.3
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 5.
b. Slide the gasket over the body of the BA578E
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
instrument, pulling gently to slide it onto the
dovetail as shown in Fig 6. Push the knurled
screw slightly forward to engage the thread and
tighten by turning clockwise until it is just finger
tight. When the 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 BA578E and
the instrument panel.
f. Connect the panel wiring to the rear terminal
block(s) as shown in Fig 5.
To simplify
installation, the terminals are removable so that
the panel wiring can be completed before the
instrument is installed.
In areas subject to
vibration wiring should be secured to prevent
damage to the connectors.
Fig 6 Fitting panel mounting clamps
