Emerson Rosemount 2120, Справочное руководство

Страница: 20 / 82

3.2.3 Pre-installation considerations
Measurement accuracy is dependent upon the proper installation of the device. Keep in
mind the need for easy access, personnel safety, practical field calibration, and a suitable
environment for the device.
Device identification
To identify a version of the level switch, see the labels on the housing and on the
electronics cassette inside the housing.
How to handle a level switch
Handle the level switch with great care.
The weight of the level switch with a heavy flange and extended fork length may exceed
37 lb. (18 kg). A risk assessment is required to be done before carrying, lifting, and
installing the level switch.
Use both hands to carry the extended length versions, and do not hold a level switch by
the forks (see
Figure 3-4 ).
Figure 3-4: Handling
Make no alterations to the level switch
Never make any alterations to the mechanical or electrical features of the level switch.
Figure 3-5: Make No Alterations
Mechanical installation Reference Manual
March 2022 00809-0100-4030
20 Reference Manual