Pressure Equipment Directive (Ped) (97/23/Ce); Transmitter Housing Rotation; Installing / Removing The External Push Buttons; Installing / Removing The Hmi Display - ABB LMT100 Operation Instructions Manual

L M T S E R I E S | 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 | O I/ L M T 1 0 0/ 2 0 0 - E N R E V. B

Pressure Equipment Directive (PED) (97/23/CE)

This product conforms to the EC directives listed in the device-
specific EC declaration of conformity It is designed in
accordance with safe engineering pratices to meet state of the
art safety requirements, has been tested and left the factory in
a condition in which they are safe to operate

Transmitter housing rotation

To improve field access to the wiring or visibility to the optional
HMI display, the transmitter housing can be rotated up to 360°
and fixed in any position A stop prevents the housing from
being rotated too far To rotate the housing, loosen the housing
stop retaining-screw by approximately 1 rotation (do not pull
out), rotate the housing to the required position and secure by
re-tightening the retaining-screw (see Figure 14)
NOTICE – Property damage.
Do not attempt to rotate the elbow to sensor tube
connection Rotation can cause damage to the sensor If
rotation is required on the LMT100, loosen the compression
fitting or rotate the process connection If rotation is
required for the LMT200, loosen the mounting clamps
Retaining
Screw
Figure 14 Transmitter Housing Rotation
Installing / removing the external push
buttons
• Loosen the screws that hold the nameplate in place, and slide
the plate to gain access to the local adjustments
• Loosen the push button assembly screws (1) that secure the
plastic element The element is spring-loaded
• Remove the gaskets (3) that are positioned below the push-
button plastic cover (2)
The three push buttons (4) and the relevant springs (5) can now
be removed from their seat (see Figure 15)
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
Elbow
Sensor
tube Default
180°
Figure 16 Windowed front cover and HMI display

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
17
90°
270°