3500/64M 176449-05
3500/64M 176449-05
3500/64M 176449-05
3500/64M 176449-05
3500/64M 176449-05
3500/64M 176449-05
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3500/64M 176449-05

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Bently Nevada 3500/64M 176449-05 is a four-channel dynamic pressure monitor that conditions transducer signals and drives rack alarms.
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Technical specifications for 3500/64M 176449-05

  • Manufacturer:
    Bently Nevada
  • Part Number:
    3500/64M 176449-05
  • Product Family:
    3500 System
  • Product Type:
    Four-Channel Dynamic Pressure Monitor
  • Stock:
    1
  • Monitor channels:
    4
  • Rack occupancy:
    One full-height slot
  • Three-wire transducer impedance:
    10 kohms
  • Two-wire transducer impedance:
    1.5–3.5 Mohms
  • Nominal sensitivity:
    100 mV/psi
  • Two-wire transducer supply:
    3.3 mA at 22 V DC
  • Three-wire transducer supply:
    -24 V DC
  • Recorder output:
    4–20 mA
  • Recorder load range:
    0–600 ohms
  • Recorder output resolution:
    0.3662 µA per bit
  • Recorder update interval:
    Approximately 100 ms
  • Low-frequency range:
    5 Hz to 4 kHz; approximately 5.285 kHz without low-pass filter
  • High-frequency range:
    10 Hz to 14.75 kHz
  • Alarm setpoint accuracy:
    Within 0.13% of full scale
  • Channel pairing:
    Channels 1–2 and 3–4 share filter selections
  • Buffered output impedance:
    550 ohms
  • Weight:
    1.808 lbs (0.82 kg)
  • Estimated shipping dimensions:
    24.18x2.44x24.13cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Channel Pairs Filter Logic Cascade Mode Alarm Outputs

Features:

  • Conditions four dynamic pressure transducer channels in one full-height 3500 rack slot.
  • Pairs channels 1–2 and 3–4 for frequency-filter configuration and alarm processing.
  • Provides front buffered signals and independent 4–20 mA recorder outputs for external checks.
Bently Nevada 3500/64M 176449-05 links dynamic pressure inputs to the 3500 rack alarm structure.

Each channel has a measurement path, buffered test point and recorder-output path with distinct electrical loading.

Filter pairing, cascade routing and alarm delay settings determine how a field waveform becomes a protection decision.

The Bently Nevada 3500/64M 176449-05 Four-Channel Dynamic Pressure Monitor is supported by current OEM technical documentation.
Bently Nevada 3500/64M 176449-05 Dynamic Pressure Monitor Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Four Channels Organized as Two Filter Groups

  • First pair: Channels 1 and 2 share one frequency-filter selection.
  • Second pair: Channels 3 and 4 share the other frequency-filter selection.
  • Separate measurement: Each channel still keeps its own conditioned value, buffered signal and recorder output.
  • Separate decisions: Alert and danger setpoints remain channel-specific even though filter selection is paired.

Selecting the Measurement Band

  • Low-frequency path: The lower band passes pressure pulsation content from its high-pass point to the selected low-pass boundary.
  • High-frequency path: The higher band shifts measurement toward faster combustion or pressure events.
  • Open upper path: Removing the low-pass selection extends the documented upper response beyond the normal low-band setting.
  • Line rejection: The selected 50 or 60 Hz notch suppresses power-frequency interference without redefining the channel pair.

Routing a Processed Channel to Cascade

  • Source channel: Cascade operation starts from a configured monitor channel rather than an additional field transducer.
  • Signal handoff: The chosen source is routed into the receiving processing path after its own input conditioning.
  • Setting dependency: The observed result depends on both the source-channel settings and the downstream filter arrangement.
  • Diagnostic check: A missing or unexpected cascade value requires checking source validity, routing selection and receiving-channel status together.

From Setpoint Crossing to Rack Alarm

  • Value comparison: Each processed channel value is compared independently with its configured alert and danger thresholds.
  • Accuracy boundary: The documented setpoint accuracy defines how closely the comparison follows full-scale value.
  • Delay qualification: A threshold excursion must persist for the configured delay before the alarm state changes.
  • Rack participation: Bypass and invalid-monitor states determine whether that channel contributes to rack protection.
  • External indication: The alarm result is reported through the 3500 rack while buffered and recorder outputs remain separate signal paths.
Description
Bently Nevada 3500/64M 176449-05 is a four-channel Dynamic Pressure Monitor for the 3500 machinery protection rack. It accepts compatible pressure-transducer signals, conditions each channel over a selected frequency range and compares the processed value with configured alert and danger setpoints.

The input path of Bently Nevada 3500/64M 176449-05 can energize either two-wire or three-wire dynamic pressure transducers. Each front buffered output exposes its channel signal for test equipment, while the 4–20 mA recorder output provides a separate proportional path to an external recorder or control system.

Filter selection in Bently Nevada 3500/64M 176449-05 is organized by channel pairs: channels 1 and 2 share one filter arrangement, and channels 3 and 4 share the other. Cascade mode can additionally pass a selected channel through another path, so the configured source and filter pairing must be checked together when readings differ.

Within the rack, Bently Nevada 3500/64M 176449-05 occupies one full-height slot and transfers alarm logic to the 3500 system. Channel delays prevent short pressure excursions from immediately changing an alarm state, while the monitor status and bypass indications show whether each protection decision is currently valid.
Alternative Names
350064M 17644905 3500 64M 176449 05 3500/64M-176449-05 Bently Nevada 3500/64M 176449-05 Bently 3500/64M 176449-05 176449-05 Dynamic Pressure Monitor 3500/64M Four Channel Monitor 176449-05 3500/64N 176449-05
Technical notes
Bently Nevada 3500/64M 176449-05 conditions four dynamic pressure channels, pairs their filter settings and supplies buffered and recorder outputs.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How are filters assigned in Bently Nevada 3500/64M 176449-05?
Bently Nevada 3500/64M 176449-05 applies one filter selection to channels 1–2 and another selection to channels 3–4.
Which transducer wiring can Bently Nevada 3500/64M 176449-05 energize?
Bently Nevada 3500/64M 176449-05 provides the documented supply paths for compatible two-wire and three-wire dynamic pressure transducers.
Why can a buffered reading differ from a recorder value on Bently Nevada 3500/64M 176449-05?
The buffered connection of Bently Nevada 3500/64M 176449-05 exposes the channel signal, while the recorder path is a separately scaled 4–20 mA output with its own load.
What should be checked when cascade data is absent from Bently Nevada 3500/64M 176449-05?
Verify the selected source channel, filter pair, cascade destination and channel validity state in Bently Nevada 3500/64M 176449-05.
How does Bently Nevada 3500/64M 176449-05 avoid alarms from brief spikes?
Bently Nevada 3500/64M 176449-05 applies the configured alarm delay before a threshold excursion changes the alert or danger state.
Which status conditions can suppress protection from Bently Nevada 3500/64M 176449-05?
A bypassed or invalid channel in Bently Nevada 3500/64M 176449-05 does not participate in rack protection in the same way as a normal enabled channel.