Bently Nevada 133388-01 3500/53 Overspeed Detection Module

Description

The Bently Nevada 133388-01 Electronic Overspeed Detection System for the 3500 Series Machinery Detection System offers a highly reliable and fast response solution for overspeed protection. Specifically designed to meet the standards set by the American Petroleum Institute (API) Standards 670 and 612, this system provides redundant tachometer functionality, ensuring robust protection against overspeed conditions.

Key Features:

• Highly reliable and fast response
• Redundant tachometer system
• Designed to meet API Standards 670 and 612

Specifications:

Inputs:

• Signal Range: +10.0 V to -24.0 V
• Input Impedance: 20 kΩ
• Power Consumption: 8.0 watts (typical)

Outputs:

• Output Impedance: 550 Ω
• Transducer Power Supply: -24 Vdc, 40 mA maximum
• Recorder: +4 to +20 mA, proportional to module full-scale range (rpm)
• Voltage Compliance (current output): 0 to +12 Vdc range across load
• Resolution: 0.3662 µA per bit, ±0.25% error at room temperature, ±0.7% error over temperature range

Relays:

• Type: Single-pole, double-throw (SPDT) relays
• Contact Ratings Max Switched Power:
  • DC: 120 W
  • AC: 600 VA
• Max Switched Current: 5 A
• Min Switched Current: 100 mA @ 5 Vdc
• Max Switched Voltage:
  • DC: 30 Vdc
  • AC: 250 Vac
• Contact Life: 100,000 cycles @ 5 A, 24 Vdc or 120 Vac