Technical Specifications of Bently Nevada 3500/53-03-00
The Bently Nevada 3500/53 (Model 3500/53-03-00) delivers reliable overspeed detection. Each channel monitors speed independently. The system uses voting logic to prevent false trips.
Inputs and Signal Conditioning
Input Signal Range: Accepts +10.0 V to -24.0 V per channel.
Input Impedance: Rated at 20 kΩ.
Power Consumption: Consumes 8.0 Watts typically.
Compatible Transducers: Works with Bently Nevada 3300 8 mm Proximitor, 3300 16 mm HTPS, 7200 5/8/11/14 mm Proximitor, 3300 RAM Proximitor, and magnetic pickups.
Outputs and LED Indicators
Front Panel LEDs: Includes OK LED, TX/XR LED, Bypass LED, Test Mode LED, and Alarm LEDs.
Buffered Transducer Outputs: One coaxial connector per channel. Each connector has short circuit and ESD protection.
Output Impedance: Rated at 550 Ω.
Transducer Power Supply: Provides -24 Vdc at 40 mA maximum.
Recorder Output Details
The 3500/53-03-00 includes a recorder output. This output provides +4 to +20 mA proportional to full-scale rpm. Short circuits on this output will not affect module operation. Load resistance ranges from 0 to 600 Ω. Voltage compliance spans 0 to +12 Vdc across the load.
Resolution and Accuracy
Resolution: 0.3662 µA per bit with ±0.25% error at room temperature.
Temperature Error: ±0.7% error over full temperature range.
Update Rate: Approximately 100 ms.
Relay Specifications
The 3500/53 uses epoxy-sealed SPDT relays. Each relay includes arc suppressors rated at 250 Vrms as standard.
Each relay is switch selectable for Normally De-energized or Normally Energized operation.
Environmental Limits
Operating Temperature: -30°C to +65°C (-22°F to +149°F)
Storage Temperature: -40°C to +85°C (-40°F to +185°F)
Humidity: 95%, non-condensing
Installation Guide for 3500/53-03-00
Follow these steps to install the Bently Nevada 3500/53-03-00. Always power off the 3500 rack before starting.
Insert the monitor module into 1 full-height front slot per channel.
Insert the I/O module into 1 full-height rear slot per channel.
Connect your proximity probe or magnetic pickup to the I/O module.
Use the front coaxial connectors for buffered outputs.
Configure each relay for Normally De-energized or Normally Energized mode.
Set the recorder output range to match your full-scale rpm.
Power on the rack and verify the OK LED turns green.
Note: The 3500/53-03-00 requires three front slots and three rear slots for a complete three-channel system.
## Package Contents (3500/53-03-00)
1 x Bently Nevada 3500/53 Monitor Module (3500/53-03-00)
1 x I/O Module per channel (3 total for -03 option)
1 x Front panel coaxial connector per channel
Frequently Asked Questions (FAQ)
1. What transducers work with the 3500/53-03-00?
The 3500/53-03-00 works with Bently Nevada 3300 series Proximitors, 7200 series Proximitors, 3300 RAM Proximitor, and magnetic pickups.
2. How does the three-channel system prevent false trips?
The 3500/53-03-00 uses voting logic. Two out of three channels must agree on an overspeed condition before the system trips the machine.
3. What is the operating temperature range for this module?
The Bently Nevada 3500/53 operates from -30°C to +65°C (-22°F to +149°F). Storage temperature ranges from -40°C to +85°C.
4. Can I use the recorder output with a PLC?
Yes. The recorder output provides +4 to +20 mA. Connect it to a PLC analog input with a load resistance between 0 and 600 Ω.
5. What is the contact life of the relays?
Each relay lasts 100,000 operations at 5A, 24Vdc or 120Vac. This ensures long-term reliability in critical overspeed protection systems.
Why Choose This Bently Nevada 3500/53-03-00?
The 3500/53-03-00 delivers dedicated overspeed protection separate from your main control system. Its three-channel design meets API 670 standards for machinery protection. The wide temperature range suits harsh environments. Choose this Bently Nevada 3500/53 for your next turbine or compressor upgrade.
Customer Reviews