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3500/40M

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Bently Nevada 3500/40M is a four-channel Proximitor Monitor for vibration and position measurements from proximity transducers.
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Technical specifications for 3500/40M

  • Manufacturer:
    Bently Nevada
  • Part Number:
    3500/40M
  • Product Family:
    3500 System
  • Product Type:
    Proximitor Monitor
  • Stock:
    1
  • Signal Inputs:
    1 to 4 proximity transducer signals
  • Channel Functions:
    Radial vibration; thrust position; eccentricity; differential expansion; REBAM
  • Simultaneous Functions:
    Up to 2; channels 1–2 form one pair and channels 3–4 form the other
  • Power Consumption:
    7.7 W typical
  • Standard I/O Input Impedance:
    10 kΩ
  • Buffered Output Impedance:
    550 Ω
  • Transducer Power Supply:
    -24 Vdc
  • Monitor Rack Space:
    1 full-height front slot
  • I/O Module Rack Space:
    1 full-height rear slot
  • Operating Temperature:
    -30°C to +65°C with internal/external termination I/O; 0°C to +65°C with internal-barrier I/O
  • Storage Temperature:
    -40°C to +85°C
  • Humidity:
    95%, noncondensing
  • Dimensions:
    2.44 × 24.13 × 24.18 cm
  • Weight:
    0.91 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, 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 Configuration Termination Diagnostics Application
  • Four channels accept Bently Nevada proximity-transducer signals for machinery protection measurements.
  • Selectable functions include radial vibration, thrust position, eccentricity, differential expansion, and REBAM.
  • User-programmable Alert and Danger setpoints support rack-based alarm and protection decisions.

Bently Nevada 3500/40M is a 3500 System monitoring module that converts proximity-transducer signals into configured vibration and position values.

Its four channels are configured as two pairs, allowing channels 1–2 and channels 3–4 to perform the same or different supported measurement functions.

Before installation or replacement, verify the main-module order number, compatible I/O module, termination hardware, transducer system, software and firmware requirements, approvals, and stored rack configuration.

Availability, condition, price, and shipping time for Bently Nevada 3500/40M are confirmed during quotation.

Bently Nevada 3500/40M Proximitor Monitor Manuals, Datasheets, Links

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.

  • Channels 1–2 form one programmable pair, while channels 3–4 form the second pair.
  • The two channel pairs can perform the same function or two different supported functions.
  • 3500 Rack Configuration Software sets channel functions, measured values, alarm setpoints, delays, and filters.
  • I/O choices include internal termination, external termination, or internal barriers with internal termination.
  • External-termination blocks and the transducer-to-ET-block cable must be ordered separately for external-termination installations.
  • External-termination blocks cannot be used with an internal-termination I/O module.
  • OK, TX/RX, and Bypass LEDs indicate monitor health, rack communication, and bypass status.
  • Four short-circuit-protected front-panel coaxial connectors provide buffered transducer outputs.
  • Available static values depend on the selected channel function and can include Direct, Gap, 1X, 2X, Not 1X, Smax, phase, or REBAM values.
  • Radial-vibration and thrust-position protection for critical rotating machinery.
  • Eccentricity and differential-expansion monitoring in turbine supervisory instrumentation.
  • Rolling-element bearing monitoring through the REBAM channel function.
Description
Bently Nevada 3500/40M is a four-channel Proximitor Monitor for the Bently Nevada 3500 machinery protection system.

The module accepts Bently Nevada proximity-transducer inputs and conditions them for radial vibration, thrust position, eccentricity, differential expansion, or REBAM measurements, with user-programmable Alert and Danger setpoints.

Before installation or replacement, confirm the complete catalog number, selected I/O module and termination method, required approvals, compatible 3500 software and firmware, transducer sensitivity, wiring, and saved channel configuration.
Alternative Names
Bently Nevada 3500/40M 3500/40M Proximitor Monitor Bently Nevada 3500-40M 3500-40M Proximitor Monitor 176449-01 Bently Nevada 176449-01 3500/40M 176449-01
Technical notes
Bently Nevada 3500/40M uses main-module part 176449-01. Verify the I/O module, termination method, approvals, and saved channel configuration before replacement.
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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.
Does the Bently Nevada 3500/40M include an I/O module?
Not necessarily. The main monitor is spare part 176449-01, while internal-termination, external-termination, and internal-barrier I/O modules have separate part numbers. Confirm the exact items included in the quotation.
Can a Bently Nevada 3500/40M be installed in place of an earlier 3500/40?
Do not assume a direct swap from the shortened model name. Verify the installed I/O module, transducer system, saved channel configuration, rack software, and required functions; REBAM specifically requires the M version.
How are measurement functions assigned on the Bently Nevada 3500/40M?
Channels are programmed in pairs. Channels 1–2 perform one selected function and channels 3–4 perform another or the same function, so the monitor can perform up to two function types at once.
Which termination option should be selected for the Bently Nevada 3500/40M?
Match the installed design: internal termination, external termination, or internal barriers with internal termination. External-termination blocks and cables are ordered separately and cannot be used with an internal-termination I/O module.
What configuration should be backed up before replacing a Bently Nevada 3500/40M?
Save the channel functions, transducer sensitivities, full-scale ranges, Alert and Danger setpoints, alarm delays, filter selections, and channel enable states from the 3500 Rack Configuration Software.
What do the front-panel LEDs on the Bently Nevada 3500/40M help diagnose?
OK indicates monitor health, TX/RX indicates communication with other rack modules, and Bypass identifies bypass mode. These statuses help separate a module fault from a communication or intentional-bypass condition.
What should be checked if a Bently Nevada 3500/40M reads incorrectly after replacement?
Check the -24 Vdc transducer supply, the matched probe/extension-cable/Proximitor system, input sensitivity, termination wiring, channel-pair assignment, full-scale range, and restored rack configuration before suspecting the monitor.

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