3500/53M Electronic Overspeed Detection System Bently Nevada

3500/53M Electronic Overspeed Detection System Bently Nevada

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. 3500/53M 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 . Power Consumption: 8.0 watts, typical. Transducers: Bently Nevada 3300-5 mm Proximito, 3300-8 mm Proximitor, 7200-5mm Proximitor, 7200-8mm Proximitor, 7200 11mm Proximitor, 7200-14mm Proximitor, 3300-16mm HTPS, 3300 RAM Proximitor, 3300XL 8mm Proximitor, 3300XL-11mm Proximitor, 3300XL-NSV Proximitor, or Magnetic pickups.

Outputs 

Front Panel LEDs OK LED: TX/XR LED: Bypass LED: Test Mode LED: Indicates when the 3500/53M Module is operating properly. Indicates when the 3500/53M Module is communicating with other modules in the 3500 rack. Indicates when the 3500/53M Module is in Bypass Mode. Indicates when the 3500/53M is in Test Mode. Indicates that an alarm condition has occurred with the associated relay. Health LED: Buffered Transducer Outputs: Output Impedance: Transducer Power Supply: Recorder: Voltage Compliance (current output): Resolution: Indicates when there is a fatal error or processor error. The front of each module has one coaxial connector for buffered output. Each connector is short circuit and ESD protected. 550 . -24 Vdc, 40 mA maximum. +4 to +20 mA. Value is proportional to module full-scale range (rpm). Module operation is unaffected by short circuits on recorder output. Application Warning:  The +4 to +20 mA recorder output is not to be used as the input to the speed control governor.  The emergency overspeed protection system must be separate from the speed controller. 0 to +12 Vdc range across load. Load resistance is 0 to 600 . 0.3662 µA per bit ±0.25% error at room temperature ±0.7% error over temperature range. Update rate approximately 100 ms.

Spares 

288062-01 3500/53M Overspeed Detection Module 

 323133-01 Overspeed Detection I/O Module 

 04425545 Grounding Wrist Strap (single use) 

 00580438 Connector Header, Internal Termination, 4-position, Green 

 00580436 Connector Header, Internal Termination, 6-position, Green 

 00580432 Connector Header, Internal Termination, 10-position, Green 

 134939-01 3500/53 Overspeed Detection Manual