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      3300/55-01-04-18-18-00-00-05-00

      Dual Velocity Monitor
      In Stock
      Ships by Saturday, November 7
      Fast Shipping Available
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Bently Nevada 3300/55-01-04-18-18-00-00-05-00 is a two-channel velocity monitor configured for 100 mV/in/s Velomitor inputs and 0–20 mm/s RMS ranges on both channels. It uses epoxy-sealed alarm relays without a safety barrier, agency-approval option or trip multiplier.

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      Technical specifications for 3300/55-01-04-18-18-00-00-05-00

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        3300/55-01-04-18-18-00-00-05-00
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Measurement function:
        dual-channel machinery casing vibration
      • Channel count:
        2 independent online channels
      • Selected channel ranges:
        Channel A 0–20 mm/s RMS; Channel B 0–20 mm/s RMS
      • Selected transducer sensitivity:
        Velomitor, 100 mV/in/s
      • Unfiltered Velomitor frequency response:
        3–3000 Hz, -3 dB nominal
      • High-pass corner selection:
        3–400 Hz
      • Low-pass corner selection:
        24–3000 Hz
      • Recorder output selections:
        4–20 mA; 1–5 Vdc; 0 to -10 Vdc
      • Current-output load:
        0–600 Ω
      • Alarm setpoint range:
        0–100% of full scale
      • Alarm relay option:
        epoxy-sealed
      View as PDF Ask for Quote

      Information

      Overview Manuals Common Applications Product Precautions
      Within a 3300 rack, Bently Nevada 3300/55-01-04-18-18-00-00-05-00 conditions two casing-vibration inputs through field-selectable filtering and presents each channel on its own 0–20 mm/s RMS scale.
      • Provides two independent online machinery-vibration channels.
      • Uses 100 mV/in/s Velomitor input sensitivity.
      • Selects 0–20 mm/s RMS for Channel A and Channel B.
      • Uses epoxy-sealed alarm relays with the base range and no safety barrier.

      The transducer sensitivity, filter corners, RMS range, recorder scaling and alarm settings form one measurement chain. A stable display is not sufficient evidence of correct scaling; each channel should be checked with a controlled vibration or electrical test condition.

      Important Notice: Match the complete 3300/55-01-04-18-18-00-00-05-00 marking, rear interface and both channel assignments before installation, then prove indication, recorder output and alarm response independently.

      Bently Nevada 3300/55-01-04-18-18-00-00-05-00 Manuals & Downloads
      Bently Nevada 3300/55-01-04-18-18-00-00-05-00 Technical Reference (PDF)Bently Nevada 3300/55-01-04-18-18-00-00-05-00 Installation & Commissioning Guide (PDF)

      The technical reference, installation guide and complete product-information PDF have different scopes and apply only to the exact model shown.

      Bearing-housing vibration
      Monitor RMS casing velocity where rotor vibration is transmitted to the measurement point.
      Two-channel machine protection
      Apply identical RMS ranges to two identified locations while keeping the channels independent.
      Filtered velocity monitoring
      Select high-pass and low-pass corners for the useful machine response band.
      Remote vibration recording
      Send each proportional channel output to a compatible current or voltage receiver.
      Apply these checks to the exact Bently Nevada 3300/55-01-04-18-18-00-00-05-00 measurement path before isolation, replacement or release.
      1
      Confirm the full Bently Nevada 3300/55-01-04-18-18-00-00-05-00 marking before removal.
      2
      Record both 0–20 mm/s RMS readings and the selected filter corners before isolation.
      3
      Retain the 100 mV/in/s Velomitor input sensitivity and channel polarity.
      4
      Verify that the transducer mounting point faithfully transmits machine vibration.
      5
      Restore the unbarriered rear interface selected by the order code.
      6
      Test the epoxy-sealed Alert and Danger relay contacts with the downstream circuit.
      7
      Confirm the recorder mode and receiving load for each channel.
      8
      Remove temporary bypasses only after both measurement and alarm paths pass the acceptance test.

      Technical notes

      Verify the 100 mV/in/s input sensitivity, 0–20 mm/s RMS spans, selected high-pass and low-pass corners, recorder mode, alarm setpoints, delays, reset behavior and epoxy-sealed relay contacts before returning both channels to service.

      FAQ View All FAQ

      • Which measurement span is selected for both channels of Bently Nevada 3300/55-01-04-18-18-00-00-05-00?
        Channel A and Channel B each use a 0–20 mm/s RMS range. Recorder scaling and alarm thresholds should be checked against that RMS span.
      • Why must the 100 mV/in/s sensitivity be retained on Bently Nevada 3300/55-01-04-18-18-00-00-05-00?
        The selected input is intended for a 100 mV/in/s Velomitor signal. A different sensitivity can produce a plausible indication with an incorrect vibration value.
      • How are filter corners applied in Bently Nevada 3300/55-01-04-18-18-00-00-05-00?
        High-pass and low-pass corners are selected with plug-in jumpers. The chosen band must suit the machine response and remain consistent on both the local and recorder paths.
      • What does the RMS range change in Bently Nevada 3300/55-01-04-18-18-00-00-05-00 commissioning?
        The applied test and receiving recorder must be compared with RMS velocity units rather than peak velocity or peak-to-peak displacement units.
      • Which alarm relay hardware is fitted to Bently Nevada 3300/55-01-04-18-18-00-00-05-00?
        The selected relay option is epoxy-sealed. Its contact energization, Alert and Danger assignments and downstream wiring still require a functional test.
      • Does Bently Nevada 3300/55-01-04-18-18-00-00-05-00 include a safety barrier or range multiplier?
        No. The order code selects an unbarriered input interface and the base displayed range without 2X or 3X multiplication.
      • Which recorder interfaces can be checked on Bently Nevada 3300/55-01-04-18-18-00-00-05-00?
        The monitor supports individually scaled recorder outputs for 4–20 mA, 1–5 Vdc or 0 to -10 Vdc. The connected receiver must match the selected mode and load condition.
      • What acceptance test should complete installation of Bently Nevada 3300/55-01-04-18-18-00-00-05-00?
        Apply a known condition to one channel at a time and compare the RMS display, buffered or recorder signal, Alert and Danger response, relay contacts and return to the normal state.
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