3500/53-03-00 Bently Nevada Overspeed Detection Module

3500/53-03-00 Overspeed Detection – Installation & Relay Output Guide

Product Introduction

The 3500/53-03-00 Bently Nevada is a dedicated electronic overspeed detection system. This module accepts a single transducer signal per channel. Specifically, it works with proximity probe transducers or magnetic pickups. You will find it in turbine and compressor overspeed protection applications. Moreover, the 3500/53-03-00 provides a three-channel configuration. Each channel operates independently.

Furthermore, the input signal range spans from +10.0 V to -24.0 V. The module internally limits signals exceeding this range. Input impedance sits at 20 kΩ. Therefore, you get reliable overspeed detection. The front panel includes OK, TX/RX, Bypass, Test Mode, and Alarm LEDs. Each channel also has a buffered transducer output via a coaxial connector.

Core Value

This overspeed detection system delivers critical machinery protection. Firstly, it prevents turbine overspeed events. Secondly, it uses epoxy-sealed SPDT relays for high reliability. Additionally, the 3500/53-03-00 includes arc suppressors rated at 250 Vrms. Consequently, relay contacts last longer. The recorder output provides +4 to +20 mA proportional to RPM. This output remains unaffected by short circuits. Therefore, you can safely connect recording devices.

Technical Insights

The 3500/53-03-00 supports multiple Bently Nevada transducers. For instance, 3300 8 mm Proximitor and 7200 series probes. Magnetic pickups are also compatible. The transducer power supply delivers -24 Vdc at 40 mA maximum. Meanwhile, the buffered output impedance is 550 Ω. Each coaxial connector includes short circuit and ESD protection.

Specifically, the recorder output has 0.3662 µA per bit resolution. Error stays within ±0.25% at room temperature. The update rate is approximately 100 ms. Load resistance ranges from 0 to 600 Ω. Voltage compliance spans 0 to +12 Vdc across the load. Additionally, the relays are switch selectable for normally de-energized or normally energized operation. Contact life reaches 100,000 cycles at 5 A, 24 Vdc.

Installation & Maintenance

Install the 3500/53-03-00 in a full-height front rack slot. The I/O module uses one full-height rear slot per channel. Firstly, disconnect rack power before insertion. Secondly, select your transducer type (proximity probe or magnetic pickup). Next, connect the transducer signal to the rear I/O module. After that, configure each relay for normally de-energized or normally energized operation.

For maintenance, regularly test the alarm LEDs. Ensure the Test Mode LED functions correctly. Also, verify the OK LED remains solid green. If the Bypass LED activates, the module is in bypass mode. Therefore, review your configuration. Keep the ambient humidity below 95% non-condensing. Storage temperature should stay between -40°C and +85°C.

Packaging List

• 1 x 3500/53-03-00 Bently Nevada Electronic Overspeed Detection Module

• 1 x I/O Module (rear slot)

• 4 x Coaxial connector caps

• Relay configuration label sheet

Shipping: FedEx, UPS, DHL

FAQ

1. What transducers work with the 3500/53-03-00?
The 3500/53-03-00 works with Bently Nevada 3300, 7200 series Proximitors, and magnetic pickups. It accepts a +10.0 V to -24.0 V input range.

2. Can I use this module for two-channel applications?
Yes. However, the 3500/53-03-00 comes as a three-channel system. You can leave one channel unused or configure it as a spare.

3. How do I wire the recorder output?
Connect the +4 to +20 mA recorder output to a 0 to 600 Ω load. Short circuits on this output will not affect module operation.

4. What happens during a relay arc event?
The 3500/53-03-00 includes factory-installed 250 Vrms arc suppressors. Therefore, relay contact life extends significantly.

5. Does the module work in high-temperature environments?
Yes. Operating temperature ranges from -30°C to +65°C. Hence, the 3500/53-03-00 performs reliably in hot turbine areas.