Emerson FISHER FIELDVUE DLC3010, Instruction Manual

Page: 11 / 124

Instruction Manual
D102748X012
DLC3010 Digital Level Controller
Introduction and Specifications
May 2018
11
Table 1‐3. 249 Sensor Specifications
Input Signal
Liquid Level or Liquid‐to‐Liquid Interface Level:
From 0 to 100 percent of displacer length
Liquid Density: From 0 to 100 percent of
displacement force change obtained with given
displacer volume—standard volumes are
J
980 cm
3
(60 inches
3
) for 249C and 249CP sensors or
J
1640
cm
3
(100 inches
3
) for most other sensors; other
volumes available depending upon sensor
construction
Sensor Displacer Lengths
See tables 1‐6 and 1‐7 footnotes
Sensor Working Pressures
Consistent with applicable ANSI
pressure/temperature ratings for the specific sensor
constructions shown in tables 1‐6 and 1‐7
Caged Sensor Connection Styles
Cages can be furnished in a variety of end connection
styles to facilitate mounting on vessels; the
equalizing connection styles are numbered and are
shown in figure 1‐4.
Mounting Positions
Most level sensors with cage displacers have a
rotatable head. The head may be rotated through
360 degrees to any of eight different positions, as
shown in figure 2‐5.
Construction Materials
See tables 1‐5, 1‐6, and 1‐7
Operative Ambient Temperature
See table 1‐4
For ambient temperature ranges, guidelines, and use
of optional heat insulator, see figure 2‐7.
Options
J
Heat insulator
J
Gauge glass for pressures to 29
bar at 232
_
C (420 psig at 450
_
F), and
J
Reflex
gauges for high temperature and pressure
applications
Table 1‐4. Allowable Process Temperatures for
Common 249 Sensor Pressure Boundary Materials
MATERIAL
PROCESS TEMPERATURE
Min. Max.
Cast Iron -29
_
C (-20
_
F) 232
_
C (450
_
F)
Steel -29
_
C (-20
_
F) 427
_
C (800
_
F)
Stainless Steel -198
_
C (-325
_
F) 427
_
C (800
_
F)
N04400 -198
_
C (-325
_
F) 427
_
C (800
_
F)
Graphite
Laminate/SST
Gaskets
-198
_
C (-325
_
F) 427
_
C (800
_
F)
N04400/PTFE
Gaskets
-73
_
C (-100
_
F) 204
_
C (400
_
F)
Table 1‐5. Displacer and Torque Tube Materials
Part Standard Material Other Materials
Displacer 304 Stainless Steel
316 Stainless Steel,
N10276, N04400,
Plastic, and Special
Alloys
Displacer Stem
Driver Bearing,
Displacer Rod
and Driver
316 Stainless Steel
N10276, N04400,
other Austenitic
Stainless Steels, and
Special Alloys
Torque Tube N05500
(1)
316 Stainless Steel,
N06600, N10276
1. N05500 is not recommended for spring applications above 232
_
C
(450
_
F). Contact your Emerson sales office or application engineer if
temperatures exceeding this limit are required.