Emerson Level-Trol 2500, Инструкция по эксплуатации

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Type 2500
Instruction Manual
Form 1013
December 2005
2
Contents (Continued)
Replacing the Bourdon Tube 27 . . . . . . . . . . . . . .
Changing Action 28 . . . . . . . . . . . . . . . . . . . . . . . . .
Relay Deadband Testing (Type 2500
Controller or 2500T Transmitter Only) 29 . . . . .
Replacing the Proportional Valve 29 . . . . . . . . . .
Changing Relay 29 . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 29 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This manual provides installation, operating,
calibration, maintenance, and parts ordering
information for the 2500 and 2503 Series pneumatic
controllers and transmitters used in combination with
249 Series displacer sensors.
Note
This manual does not include
installation or maintenance
procedures for the supply pressure
regulator, sensor, or other devices. For
that information, refer to the
appropriate instruction manual for the
other device.
No person may install, operate or maintain a 2500 or
2503 Series pneumatic controller/transmitter without
first D being fully trained and qualified in valve,
actuator and accessory installation, operation and
maintenance, and D carefully reading and
understanding the contents of this manual. If you
have any questions about these instructions, contact
your Emerson Process Management
t
sales office.
Description
These instruments control or transmit the fluid level,
the level of interface between two fluids, or the
density (specific gravity). Each unit consists of a 249
Series displacer-type fluid level sensor and a 2500
or 2503 Series pneumatic controller or transmitter.
Figure 1 shows a typical controller-sensor
combination.
Specifications
Refer to table 1 for specifications.
Educational Services
For information on available courses for 2500 or
2503 Series pneumatic controllers and transmitters,
as well as a variety of other products, contact:
Emerson Process Management
Educational Services, Registration
P.O. Box 190; 301 S. 1st Ave.
Marshalltown, IA 50158 − 2823
Phone: 800 − 338 − 8158 or
Phone: 641 − 754 − 3771
FAX: 641 − 754 − 3431
e-mail: education@emersonprocess.com
Note
Neither Emerson
R
, Emerson Process
Management, Fisher R nor any of their
affiliated entities assumes
responsibility for the selection, use, or
maintenance of any product.
Responsibility for the selection, use,
and maintenance of any product
remains with the purchaser and
end-user.