Siemens SITRANS FUS1020, Руководство пользователя, Страница: 59 / 251

3-4
1020NFM-1D
Section 3
3.3 PREPARING TO MOUNT THE TRANSDUCERS
Installing the transducers is fairly straightforward. However, careful planning will avoid any snags that
may delay the installation. Previously, based on the input you fed into the meter’s computer, it recom-
mended the transducers’ size, mounting option and spacing. With the transducers at hand, we are
now ready to mount them. But first, some very important preliminary work must be done which con-
sists of:
z
Selecting a mounting option for your application
z
Selecting a location on the pipe
z
Preparing the pipe to accept the transducers
NOTE: When installing transducers, do not key in the V/M (Version/Modification) label number
as the Transducer Size.
3.3.1 HOW TO IDENTIFY 1021 TRANSDUCERS AND MOUNTING HARDWARE
The 1021 series transducers and mounting frames have the following codes for easy identification:
3.3.2 SELECTING A LOCATION FOR CLAMP- ON TRANSDUCERS
z
Locate the transducers downstream from the center of the longest available straight run. A location
ten pipe diameters or greater downstream from the nearest bend will provide the best flow profile
conditions.
Transducer Size
A ................................ SIZE ‘A’
B ................................ SIZE ‘B’
C ............................... SIZE ‘C’
D ............................... SIZE ‘D’
The transducer part number located on the front face provides a more detailed identification.
For example, the transducer part number 1021A1 means:
Transducer Frequencies
Transducer frequencies are repre-
sented by the numbers 1,2, and 3.
For example, the mounting track part number 1022C1R-D means:
MODEL
SIZE
A 1
1 0 2 1
FREQ
MOUNTING TRACK
XDCR SIZE
C 1 R D
1 0 2 2
SINGLE TRACK
REMOTE MOUNT
SPEC. CODE