Bently Nevada 3500/53 Electronic Overspeed Detection Module

Technical Specifications

Model: 3500/53

Brand: Bently Nevada

Product Type: Electronic overspeed detection module

Spare Part No:133388‑01 mainboard; I/O sub‑board optional internal / external terminal

Input Channel:1 channel speed input per module

Supported Sensor:proximity probe,magnetic pickup

Input Signal Range:+10.0V ~‑24.0V

Input Impedance:20kΩ

Events Per Revolution:1‑255 events/rev

Max Full‑Scale Speed:99999 rpm

Max Input Frequency:20kHz

Speed Accuracy:＜100rpm ±0.1rpm;100‑10000rpm ±1rpm;10000‑99999rpm ±0.01%

Relay Response Time:＜30ms

Recorder Output:4‑20mA proportional speed output

Power Consumption:8.0 W typical,supplied by 3500 rack backplane

Front‑panel LED:OK,TX/RX,Bypass,Test Mode,Alarm

System Compatibility:Bently Nevada 3500 machinery protection rack

Remark:Support 2‑out‑of‑2 / 2‑out‑of‑3 hardware voting by multi‑module combination;support hot‑swap;peak speed latch function;online internal test

Module Form:Full‑height rack‑mount module

Weight:0.75 kg

Dimension:241 mm×24.4 mm×242 mm

Protection Grade:IP20

Certification:UL,CSA,CE

Working Temperature:‑30℃ ~ +65℃,non‑condensing

Storage Temperature:‑40℃ ~ +85℃

Humidity:5%‑95% non‑condensing

Application:Turbine,compressor high‑safety rotating equipment overspeed protection,realize overspeed / low‑speed detection,peak speed lock‑up,hardware voting protection output,system maintenance and spare‑part replacement.

Product Details

3500/53 is dedicated electronic overspeed detection module for Bently Nevada 3500 TSI machinery protection rack. Single card provides one speed input channel,multiple 3500/53 modules work together to build 2‑out‑of‑2 or 2‑out‑of‑3 overspeed protection voting system.

It accepts signal from proximity probe or magnetic pickup,realizes shaft speed measurement,overspeed / low‑speed alarm judgment,peak‑speed latch and online self‑test function. Relay response time less than 30ms,provides fast hardware protection trip signal. It also provides 4‑20mA recorder proportional output for speed value.

Supports hot‑swap replacement. Different I/O sub‑boards can be selected for internal terminal or external terminal field wiring. It is widely used for steam turbine and gas turbine overspeed protection application.

Note: This is legacy 3500 series spare component,widely used for replacement of turbine and compressor TSI monitoring & protection systems.