Bently 3500/53-03-00 Electronic overspeed detection module

The Bently 3500/53-03-00 is an electronic overspeed detection module in the Bently Nevada 3500 Series Machinery Monitoring System, specifically designed for overspeed protection of machinery. Below is its comprehensive detailed information:

1. Basic Parameters

Speed Measurement Range: 0 rpm to 10,000 rpm
Accuracy: ±0.1%
Response Time: <10 ms
Rated Voltage: 24 V DC
Operating Temperature: -40°C to +85°C
Enclosure Protection Rating: IP65

2. Input & Output Characteristics

(1) Input Signals

Receives signals from eddy current sensors (e.g., Bently 3300XL 5mm, 8mm, 11mm) or magnetic sensors.
Input signal range: +10.0V to -24.0V; signals beyond this range are limited within the module.

(2) Outputs

Relay Outputs: Single-pole double-throw (SPDT) relays. Maximum switching voltage: 30V DC, 250V AC.
Sensor Buffered Outputs: Output impedance of 550Ω. Each module has a coaxial connector on the front panel for buffered output, with short-circuit and electrostatic protection.
Recorder Outputs: 4-20mA current signal. The output value is proportional to the module’s full-scale range (rpm).

3. Functional Features

High-Precision Measurement: Adopts high-precision measurement technology to provide accurate and reliable speed measurement results, with an accuracy of up to ±0.1%.
Fast Response: With a response time of less than 10 ms, it can quickly detect abnormal speed conditions and trigger protective actions.
Redundant Design: Can be configured into 2-out-of-2 or 3-out-of-2 (recommended) voting systems to ensure system safety and reliability, complying with American Petroleum Institute (API) standards 670 and 612 for overspeed protection.
Easy Configuration: All alarm setpoints are configured via software and are adjustable, typically within the range of 0-100% of the full scale. Users can easily configure the module’s network parameters (e.g., IP address, subnet mask) through the software interface.
Status Indication: The front panel is equipped with multiple LED indicators:
- OK LED: Indicates the module is operating normally.
- TX/RX LED: Indicates the module is communicating with other modules in the 3500 rack.
- Bypass LED: Indicates the module is in bypass mode.
- Alarm LED: Indicates an alarm condition has occurred.

4. Application Fields

Widely applicable to various rotating machinery, such as steam turbines, fans, reciprocating compressors, motors, pumps, blowers, centrifuges, and generators. It is suitable for industries including iron and steel, power generation, metallurgy, chemical engineering, and petrochemicals.

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