Installing / Removing The Hmi Display; Integral Display Rotation; Securing The Housing In Flame-Proof Areas - ABB LMT Series Operating Instruction

18 L M T 1 0 0 A N D L M T 2 0 0 | M A G N E TO S T R I C T I V E L E V E L T R A N S M I T T E R S | F F O I/ L M T 1 0 0/ 2 0 0/ F F - E N R E V. A
Figure 15 External push button assembly components

Installing / removing the HMI display

– Unscrew the housing cover of the communication board /
HMI side
IMPORTANT (NOTE)
With an Ex d / flame-proof design, please refer to the securing
the housing cover in flame-proof areas section
• Attach the HMI display Depending on the mounting position
of the level transmitter, the HMI display may be attached in
four different positions
• This enables + 90° or + 180° rotations (see Figure 16)
IMPORTANT (NOTE)
Retighten the housing cover until it is hand-tight
Default
180°
Figure 16 Windowed front cover and HMI display
90°
270°

Integral display rotation

When the optional integral display meter is installed, it is
possible to mount the display in 4 different positions, rotated
clockwise or counterclockwise with 90° steps To rotate the
display, open the windowed cover (hazardous area precautions
must be respected) and pull the display housing from the
communication board Re-position the display connector
according to the preferred position Push the display module
back onto the communication board
Ensure the plastic fixing locks are in place

Securing the housing in flame-proof areas

Each of the front faces of the electronics housing features a
locking screw (hex-head socket screw) on the bottom side
• Install the housing cover to the housing by hand-tightening it
• Turn the locking screw counterclockwise to secure the
housing cover This involves unscrewing the screw until the
screw head stops at the housing cover