BENTLY 3500/53 133388-01

Description

The Bently Nevada™ Electronic Overspeed Detection System for the 3500 Series
Machinery Detection System provides a highly reliable, fast response, redundant
tachometer system intended specifically for use as part of an overspeed
protection system. It is designed to meet the requirements of American
Petroleum Institute (API) Standards 670 and 612 pertaining to overspeed
protection.
3500/53 modules can be combined to form a 2-out-of-2 or a 2-out-of-3
(recommended) voting system.
The Overspeed Detection System requires the use of a 3500 rack with redundant
power supplies. Specifications
Inputs
Signal:
Each Overspeed Detection
module accepts a single
transducer signal from a
proximity probe transducer or
magnetic pickup. The input signal
range is +10.0 V to -24.0 V. The
module internally limits signals
that exceed this range.
Input Impedance:
20 k Ω.
Power Consumption:
8.0 watts, typical.
Transducers:
Bently Nevada 3300 8 mm
Proximitor 3300 16 mm HTPS,
7200 5 mm, 8 mm, 11 mm, and 14
mm Proximitor; 3300 RAM
Proximitor, or Magnetic pickups.
Outputs
Front Panel LEDs
OK LED:
Indicates when the 3500/53
Module is operating properly.
TX/XR LED:
Indicates when the 3500/53
Module is communicating with
other modules in the 3500 rack.
Bypass LED:
Indicates when the 3500/53
Module is in Bypass Mode.
Test Mode LED:
Indicates when the 3500/53 is in
Test Mode.
Alarm LEDs:
Indicates that an alarm condition
has occurred with the associated
relay.