The Bently Nevada 3500/54-03-00 is a 4-channel speed and keyphasor monitoring module for the 3500 series machinery protection system. It provides high-precision overspeed detection with millisecond response times, making it ideal for critical turbines, compressors, and other rotating machinery where API 670 compliance is required.
Item No :
3500/54-03-00Order(MOQ) :
1Payment :
EXW/CIFProduct Origin :
USALead Time :
3-5daysWeight :
5kg| Feature | Description |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Family | 3500 Series Machinery Protection System |
| Module Type | 4-Channel Speed/Keyphasor Monitor |
| Input Channels | 4 independent differential channels |
| Sensor Compatibility | Magnetic pickups, photoelectric sensors, eddy-current keyphasor probes |
| Measurement Range | 0.1 – 30,000 RPM (expandable to 100,000 RPM) |
| Accuracy | ±0.01% Full Scale with 24-bit ADC |
| Response Time | < 5 ms (overspeed mode) |
| Analog Outputs | 4 x 4-20 mA (proportional to speed) |
| Alarm Capability | 3 levels: Alert, Danger, Trip |
| Redundancy Support | 2oo2, 2oo3 voting logic (with 3500/53 modules) |
| I/O Module Included | 133396-01 (I/O terminal card) |
| Standard Compliance | API 670, API 612 |
| Safety Certification | IEC 61508 SIL 2 capable |
| Hot-Swap | Supported |
| Category | Model | Description |
|---|---|---|
| Dual-Channel Speed | 3500/50-01-00 | 2-channel tachometer module for basic speed monitoring applications |
| Triple Redundant Overspeed | 3500/53 | Overspeed detection module for building 2oo3 voting systems with 3500/54 |
| Relay Output | 3500/32-01-00 | 4-channel relay module for executing alarm/trip outputs |
| Failsafe Relay | 3500/33 | 16-channel failsafe relay output module for critical safety loops |
| Communication Gateway | 3500/22M | Transient Data Interface for connecting to System 1 software |
| Rack Interface | 3500/20 | Primary Rack Interface Module for module configuration |
| 135031-01 | 125712-01 | 136483-01 |
| 125768-01 | 125720-01 | 137110-01 |
| 3500/22M | 3500/33 | 3500/64M |
| 138607-01 | 149986-01 | 3500/65 |
| 138607-02 | 149992-01 | 3500/70M |
| 146031-01 | 3500/34 | 3500/72M |
| 146031-02 | 125696-01 | 149734-08 |
| 147364-01 | 3500/34 | 3500/72M |
| 3500/25 | 125704-01 | 140471-01 |
| 149369-01 | 500/50 | 140482-01 |
| 125800-01 | 133388-02 | 135489-01 |
| 126648-01 | 3500/50 | 3500/77M |
| 125800-02 | 133442-01 | 146282-01 |
| 126648-02 | 136703-01 | 3500/77M |
| 135473-01 | 133434-01 | 140734-07 |
Q1: What does the "-03-00" suffix mean in the model number?
The "-03" indicates the specific I/O configuration: it includes the 133396-01 I/O terminal card with internal terminations . The "-00" indicates no agency approvals . It's important to specify the full part number when ordering, as "3500/54" alone may refer to a lower-spec relay output card .
Q2: What is the primary application of the 3500/54-03-00?
Its primary application is overspeed protection for turbines, gas turbines, and compressors, where it must detect overspeed events within milliseconds and trigger a safe shutdown . It is not a general-purpose speed monitor; it's designed for high-reliability, safety-critical overspeed chains .
Q3: How does the module achieve fast response times?
The 3500/54-03-00 uses a 24-bit analog-to-digital converter and optimized firmware to achieve a response time of < 5 ms in overspeed mode . This allows it to detect and report overspeed conditions before machinery can be damaged.
Q4: Can this module be used in a redundant configuration?
Yes. The module supports 2oo2 and 2oo3 voting logic, typically paired with 3500/53 modules, to build a Triple Modular Redundant (TMR) overspeed protection system that meets API 670 requirements .
Q5: What types of sensors does the 3500/54-03-00 support?
It accepts inputs from magnetic pickups (speed sensors), photoelectric sensors, and eddy-current keyphasor probes, with each channel supporting 0.1 to 10 Vpp sine wave or TTL/CMOS square wave signals.
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