products

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.

Ordering Considerations
General
If the 3500/53 is added to an existing 3500 System the following firmware and software versions (or
later) are required:
3500/20 Module Firmware – Revision G
3500/01 Software – Version 2.00
3500/02 Software – Version 2.03
3500/03 Software – Version 1.13
The use of redundant power supplies in a 3500 rack containing the Overspeed Detection System is
required.

Ordering Information
Electronic Overspeed Detection System
3500/53-AXX-BXX
A: Channel Option
0 2 Two Channel System
0 3 Three Channel System

B: Agency Approval Option
0 0 None
0 1 CSA/NRTL/C

Spares
133388-01 3500/53 Overspeed Detection Module
133396-01 Overspeed Detection I/O Module