Description
Bently Nevada 3300/50
- Technical & Performance Parameters:
- RPM measuring range: 1‑99999 RPM
- Measurement resolution: ±1 RPM
- Measurement accuracy: ±1 RPM
- Alarm delay: 1 second or 3 valid trigger pulses; zero‑speed alarm requires 3 valid input triggers
- Analog output: 4‑20 mA or 0‑10 V DC recorder signal
- Power consumption: 2.8 W typical
- Operating temperature: ‑40 °C ~ +70 °C
- Storage temperature: ‑50 °C ~ +85 °C
- Input source: magnetic pickup or proximity probe pulse signal
- Material Composition: Metal front panel with printed silk‑screen indicator text; multilayer printed circuit board with industrial‑grade integrated chips, tantalum capacitors and signal conditioning circuits; metal locking latch for rack insertion.
- Structural Characteristics: Standard 3300 series single‑width rack module structure. Front panel includes LCD digital display, status LED indicators and function buttons. Rear edge connector completes power supply, signal input and relay connection. Hot‑swap capable inside the 3300 rack.
- Working Principle: Receives pulse signals from speed transducers. Converts pulse frequency into rotational speed value through internal counting and microprocessor calculation. Compares real‑time speed with user‑configured alert and danger setpoints to trigger relay actions. Calculates rotor acceleration by sampling speed change over fixed time intervals. Zero‑speed function judges rotor static status by monitoring pulse loss.
- Application Scenarios: Steam turbine, gas turbine, centrifugal compressor, large pump, generator and other high‑speed rotating machinery TSI protection systems. Applied for overspeed pre‑alarm, overspeed trip protection, zero‑speed interlock for turning gear and rotor acceleration monitoring during startup and shutdown.
- Installation Requirements: Install into standard 3300 series 19‑inch rack chassis. Ensure correct rear connector engagement. Power supply must match 3300 rack backplane specification. Route transducer signal cables separately from high‑power power cables to reduce EMI interference. Complete jumper configuration before power‑on. Leave sufficient air convection space around rack for heat dissipation.
- Usage Notes: This module cannot work independently; it must operate together with 3300 rack, power supply and corresponding relay modules. Calibrate speed scaling factor according to transducer tooth number. After fault elimination, manually clear latched alarm status. Avoid operating outside specified temperature range. Do not hot‑swap the module under high‑voltage live‑wiring status. Perform regular inspection of front‑panel LED and display status.
