Robertshaw 563A, Руководство пользователя

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GENERAL DESCRIPTION
The Robertshaw Model 563A Vibraswitch Electronic
Monitor is a microprocessor based supervisory control
system designed for use with Robertshaw Model 365 or
366 Vibraswitch Malfunction Detectors. It may be used
with one to eight Vibraswitches and has been programmed
to provide a means of differentiating between valid
excessive vibration and excessive vibration resulting from
temporary external disturbances.
Many machines, during their normal operation, will suffer
occasional short-duration transient shocks, which are
external to the monitored machine. Examples of these
disturbances are: Closing of pipeline check valves on
pumping applications; Start-up of additional pumps on a
line; nearby machinery operating - such as hydraulic
presses, etc.. These disturbances may cause a Vibraswitch
to "trip out" if the vibratory level is in excess of its setpoint.
The Model 563A provides field settable Monitor Time
Delay circuitry that eliminates equipment shutdown
because of these transients and ensures that only a
continuous vibration level which exceeds the setpoint of the
Vibraswitch will initiate an alarm and/or shutdown. This
Monitor Time Delay is adjustable, using digital rotary
switches, over a range of 0 to 99 seconds.
Nearly all rotating machinery, during its "start-up"
operation, will go through an excessive vibration point
which is inherent to the machine. This vibration level
sometimes is higher than the alarm/shutdown level desired
for safe protection. The Model 563A contains circuitry
which provides a Starting Time Delay to disable the
Vibraswitches for a period of time to allow the machine to
reach its normal operating speed or condition. After this
delay period, the Model 563A activates the Vibraswitches
to provide the necessary vibration protection. The Start
Time Delay is adjustable over a range of 0 to 999 seconds
by means of digital rotary switches.
Eight LED indicators, viewable through the window on the
instrument door, are provided for visual indication to
determine which Vibraswitch detected the excessive
vibration and triggered the alarm and/or shutdown.
The supply power for the Vibraswitch Electronic Monitor
is available as:
120 VAC
240 VAC
48 VDC
24 VDC
Sales Manual Section 140
PRODUCT SPECIFICATION MODEL 563A
Vibraswitch
Electronic Monitor
Model 563A
FEATURES AND BENEFITS
•
Microprocessor Based -
Provides greatest reliability and most accurate
operation.
•
Multiple Vibraswitch Sensors -
Monitors from 1 to 8 Vibraswitches.
•
AC or DC Supply Power
•
NEMA 4 and Explosion-Proof Enclosures
Available
•
Field Selectable Timing Periods