Instruction Manual

Instruction Manual
D103216X012
L2sj Controller
January 2015
3
Table 1. Specifications (continued)
Canadian Registration
The L2sj utilizes the same sensor unit pressure
component as the L2 pneumatic controller version.
Refer to the L2 CRN which is deemed applicable to
the L2sj.
Declaration of SEP
Fisher Controls International LLC declares this
product to be in compliance with Article 3 paragraph
3 of the Pressure Equipment Directive (PED) 97 / 23 /
EC. It was designed and manufactured in accordance
with Sound Engineering Practice (SEP) and cannot
bear the CE marking related to PED compliance.
However, the product may bear the CE marking to
indicate compliance with other applicable European
Community Directives.
NOTE: Specialized instrument terms are defined in ANSI/ISA Standard 51.1 - Process Instrument Terminology.
1. Level change required for full change in output signal.
2. This product can be used with natural gas as the supply medium. Natural gas should contain no more than 20 ppm of H
2
S.
3. Normal m
3
/hr—Normal cubic meters per hour (0_C and 1.01325 bar, absolute) Scfh—Standard cubic feet per hour (60_F and 14.7 psia).
4. Supplied with 6 inch extension.
5.Supplied with 3 inch extension.
6. The pressure and temperature limits in this document and any applicable standard or code limitation should not be exceeded.
Table 2. Liquid Level Span
SENSOR
SPECIFIC GRAVITY OF LIQUID
0.6 0.75 1
Vertical Displacer Span, mm (inch)
1-7/8 x 12 inch Displacer with 6 inch extension n/a 135 (5.3) 102 (4.0)
3 x 6 inch Displacer 3 inch extension 57 (2.25) 46 (1.8) 34 (1.35)
Horizontal Displacer
Span, mm (inch)
3 x 6 inch Displacer with 3 inch extension 22 (0.85) 17 (0.67) 13 (0.5)
NOTES
1. Level change required for full change in output signal.
2. Span adjuster set for maximum sensitivity.
3. 1.4 bar (20 psig) supply pressure.
4. For vessels with fast dump cycles, actual liquid span will be larger
Description
The rugged L2sj low emission liquid level controller uses a displacer type sensor (see figure 1) to detect liquid level.
The controller features a rugged, metal‐seated relay with proportional and integral action. The device delivers a
pneumatic output signal to a control/dump valve.
Specifications
Specifications for the controller and sensor are listed in table 1.
Educational Services
For information on available courses for the L2sj low emission liquid level controller, as well as a variety of other
products, contact:
Emerson Process Management
Educational Services, Registration
Phone: [phone] or [phone]
E‐mail: [e-mail]
http://www.emersonprocess.com/education