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The Bently Nevada 3500/53 133396-01 is an Overspeed Detection I/O Module specifically designed for use in high-speed rotating machinery applications. It plays a vital role in protecting machinery by detecting overspeed conditions and triggering alarms or shutdowns. Operating as part of the 3500 Series, this module is engineered for reliable performance under extreme conditions and supports system configurations such as 2-out-of-3 voting logic for maximum safety.
Brand: Bently Nevada
Series: 3500 Series Machinery Protection System
Module Type: Overspeed Detection I/O
Compliance: API 670, API 612
| Parameter | Details |
|---|---|
| Model Number | 3500/53 133396-01 |
| Function | Overspeed Detection I/O Module |
| Input Type | Proximity Probe or Magnetic Pickup |
| Signal Voltage Range | +10 V to -24 V |
| Input Impedance | ~20 kΩ |
| Recorder Output | +4 to +20 mA (proportional to RPM) |
| Transducer Power Supply | –24 VDC, up to 40 mA |
| Power Consumption | Approx. 8.0 Watts |
| Operating Temperature | –30°C to +65°C |
| Storage Temperature | –40°C to +85°C |
| Humidity | 0 to 95% RH, non-condensing |
| Dimensions (H × W × D) | 241.3 mm × 24.4 mm × 99.1 mm |
| Weight | Approx. 0.45 kg |
| Mounting | Standard 3500 rack |
| Standards Compliance | API 670 and API 612 Overspeed Protection Standards |
| Relay Outputs | Available via separate Relay Module (used for trip or alarm logic) |
Steam and gas turbine overspeed detection
Centrifugal compressor protection systems
Electric motor overspeed protection
Industrial generator safety monitoring
Petrochemical, oil & gas, and power generation sectors
Ideal for use in redundant or voting configurations (2-out-of-3 logic)
Integration into safety interlock systems with recorder output capabilities
Rapid Response: Detects critical overspeed events in milliseconds
High Reliability: Designed for mission-critical applications
Compact Design: Slim module format for space-efficient installations
Flexible Input: Supports both proximity and magnetic pickup sensors
Recorder Output: Enables data logging and trend analysis
Voting Logic Support: Redundant system configurations enhance safety
Industry Compliance: Conforms to key global safety standards
Robust Build: Operates in wide environmental ranges
| Model Number | Function | Input Type | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/53 133388-01 | Overspeed Detection Module | Proximity / Magnetic Pickup | 241.3 × 24.4 × 99.1 | ~0.45 |
| 3500/53 133388-02 | Overspeed Detection (Enhanced I/O) | Proximity / Magnetic Pickup | 241.3 × 24.4 × 99.1 | ~0.45 |
| 3500/50M 133442-01 | Tachometer / Speed Monitoring | Proximity / Magnetic Pickup | 241.3 × 24.4 × 99.1 | ~0.45 |
| 3500/50M 286566-02 | Tachometer Module | Magnetic Pickup | 241.3 × 24.4 × 99.1 | ~0.45 |
| 3500/50M 133388-02 | Speed Input Module | Proximity / Magnetic Pickup | 241.3 × 24.4 × 99.1 | ~0.45 |
| Model Number | Function | Input/Output | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|
| 3500/22M | Transient Data Interface Module | Buffered Inputs | 241.3 × 24.4 × 99.1 | ~0.75 |
| 3500/45 135137-01 | Position Monitoring Module | Proximity, LVDT | 241.3 × 24.4 × 99.1 | ~0.50 |
| 3500/33 149986-01 | Temperature Monitor | Thermocouple, RTD | 241.3 × 24.4 × 99.1 | ~0.48 |
| 3500/61 133819-01 | Speed and Phase Module | Pulse or Magnetic Pickup | 241.3 × 24.4 × 99.1 | ~0.45 |
| 3500/80 | Trip Module | Relay Outputs | 241.3 × 24.4 × 99.1 | ~0.45 |
Q1: What is the function of the 3500/53 133396-01 module?
A1: It detects overspeed conditions in rotating machinery and triggers alarms or shutdowns to protect equipment.
Q2: Which sensor types are compatible with this module?
A2: It supports both proximity probes and magnetic pickups.
Q3: Does this module provide recorder output?
A3: Yes, it provides a +4 to +20 mA output signal proportional to machine speed.
Q4: Can it be used in a redundant safety system?
A4: Absolutely. It supports 2-out-of-3 or 2-out-of-2 voting logic for high-reliability overspeed protection.
Q5: What power does the module supply to sensors?
A5: It supplies –24 VDC with a current capacity of up to 40 mA.
Q6: What is the typical power consumption?
A6: Approximately 8.0 Watts under normal operation.
Q7: What are the environmental limits for this module?
A7: It operates from –30°C to +65°C and up to 95% humidity (non-condensing).
Q8: What is the physical size and weight of this module?
A8: Dimensions are 241.3 mm × 24.4 mm × 99.1 mm, and it weighs approximately 0.45 kg.
Q9: Is this module compliant with industry safety standards?
A9: Yes, it meets API 670 and API 612 standards for overspeed detection.
Q10: Can this module be integrated with other 3500 Series modules?
A10: Yes, it is fully compatible with other modules within the 3500 Series system.
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