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Phone: +86 16626708626Description
Real-World Use & Application Scenarios
In critical industrial applications where machinery overspeed conditions can lead to catastrophic failures, the BENTLY 3500/54 133396-01 Overspeed Detection I/O Module is a vital safety component. It is widely deployed in power generation, petrochemical plants, and process industries where rapid detection and response to excessive shaft speed are necessary to protect rotating equipment such as turbines, compressors, and generators. The module is key in ensuring compliance with strict safety standards including API 670 and API 612, providing operators with reliable, redundant overspeed protection. Its use addresses the imperative for immediate fault detection and machinery shutdown mechanisms that prevent mechanical damage, production interruptions, or hazardous events. The 133396-01 integrates into automated control and protection systems to deliver high-speed response and trustworthy operation under demanding industrial conditions.
- 3500/53 133396-01
- 3500/53 133396-01
Product Introduction & Positioning
The BENTLY 3500/54 133396-01 is an Overspeed Detection I/O Module within the Bently Nevada 3500 Series system. Designed specifically for overspeed safety applications, this module accepts input signals from proximity probes or magnetic pickups and processes them to detect when a machine’s rotational speed exceeds predefined safe limits. It features configurable setpoints for under- and overspeed alerts and a danger setpoint for shutdown initiation. The module supports a maximum full-scale range of 99,999 RPM and can handle up to 255 events per revolution with an input frequency limit of 20 kHz. As a part of a redundant tachometer system, it can be used alone or in voting configurations (2-out-of-2 or 2-out-of-3) to increase safety reliability. It fits within a 3500 rack and interfaces seamlessly with other monitoring modules and system software, solidifying its role as a critical machine protection device.
Key Technical Features & Functional Benefits
The 133396-01 provides accurate and immediate overspeed detection with flexible alarm setpoints configurable via software, allowing adjustment from 0 to 100% of full-scale speed. Its internal circuitry limits input voltage to protect against transient spikes, ensuring signal and module integrity. The module outputs a proportional +4 to +20 mA recorder output representing the speed, which remains unaffected by short circuits, providing continuous reliable readout for control systems.
It consumes approximately 8 watts during operation and is epoxy sealed to resist dust, moisture, and industrial contaminants. Operating within temperatures from -30°C to +65°C, it withstands harsh industrial environments while maintaining performance. The module weighs about 0.45 kg and measures 241.3 mm x 24.4 mm x 99.1 mm, making it compatible with standard 3500 series racks. Its design supports critical machinery safety systems by enabling fast, dependable response to overspeed events, reducing asset damage risk and improving plant safety.
Detailed Technical Specifications
| Parameter | Value |
|---|---|
| Model | 133396-01 |
| Brand | Bently Nevada / GE |
| Product Type | Overspeed Detection I/O Module |
| Series | 3500 Series |
| Input Signal | Proximity Probe or Magnetic Pickup |
| Input Voltage Range | +10.0 V to -24.0 V (internally limited) |
| Maximum Input Frequency | 20 kHz |
| Maximum RPM Range | Up to 99,999 RPM |
| Output | +4 to +20 mA Recorder output |
| Power Consumption | Approx. 8 Watts |
| Operating Temperature | -30°C to +65°C (-22°F to 149°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Weight | Approx. 0.45 kg (1.0 lb) |
| Dimensions (HxWxD) | 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) |
| Environmental Sealing | Epoxy sealed |
| Certification | CSA/NRTL Class I Division 2 |
Related Modules or Compatible Units
3500/53 Overspeed System Modules – Compatible modules for building redundant voting overspeed systems with the 133396-01.
3500/22M Transient Data Interface Module – Supports complementary transient data capture alongside overspeed protection.
3500/20 Rack Interface Module – Essential communication module for 3500 series rack systems hosting the 133396-01.
3500/15 Power Supply Module – Provides power for racks containing the 133396-01 and related modules.
System 1™ Software – Comprehensive diagnostics and monitoring software integrating overspeed data for analysis.
136719-01 Earthing I/O Module – Provides earthing and signal conditioning protection within 3500 series racks.
3500/25 Differential Expansion Module – Monitors axial shaft movements, complementing the overspeed detection module.
3500/94M VGA Display Module – Onsite visualization of overspeed and machinery condition parameters.
Installation Notes & Maintenance Best Practices
Installation requires mounting the 133396-01 within a standard 3500 series rack, ensuring proper slot placement and secure connection to power and sensor inputs. Input cabling should use shielded twisted pairs with adequate grounding to minimize electrical noise and signal degradation. Alarm setpoints and operational parameters are configurable through system software during commissioning. Regular visual inspection of front panel LEDs can provide immediate status diagnostics.
Maintenance practices include programmed testing of overspeed alarms and recorder output signals to validate system readiness. Firmware updates and system backups ensure compatibility and continuity. Care should be taken to maintain enclave conditions that protect the module from extreme contamination or moisture. Spare modules and certified replacement parts should be maintained onsite to minimize downtime during maintenance or repairs.
