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Bently Nevada 990-04-70-02-00
Bently Nevada 990-04-70-02-00
Bently Nevada 990-04-70-02-00
Bently Nevada 990-04-70-02-00
Bently Nevada 990-04-70-02-00
Bently Nevada 990-04-70-02-00
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990-04-70-02-00

Vibration Transmitter
In Stock

Product Describe:

Bently Nevada 990-04-70-02-00 is a two-wire 990 vibration transmitter configured for a 0-4 mil peak-to-peak range, a 7.0 m 3300 NSv transducer system and bulkhead-screw mounting. It converts the matched proximity signal to a proportional 4-20 mA output.

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Technical specifications for 990-04-70-02-00

Technical specifications for 990-04-70-02-00

  • Manufacturer:
    Bently Nevada
  • Product Category:
    Machinery Monitoring System
  • Spare Part Number:
    990-04-70-02-00
  • Estimated shipping dimensions:
    10x7.5x5.2cm
  • Weight:
    0.44 kg
  • Tariff Code:
    8537101190
  • Counliy of origin:
    USA
  • Full-scale Option:
    04 = 0-4 mil peak-to-peak (0-100 um peak-to-peak)
  • System Length Option:
    70 = 7.0 m
  • Mounting Option:
    02 = bulkhead screws
  • Agency Option:
    00 = not required
  • Transducer Input:
    One 3300 NSv proximity probe and matching extension cable
  • Conditioning Stage:
    Integrated Proximitor
  • Supply at Transmitter:
    +12 to +35 VDC; approval-specific circuit limits also apply
  • Process Output:
    4-20 mADC, two-wire, proportional to configured full scale
  • Loop Accuracy:
    Within +/-1.5% of full scale, TEST input to a 250-ohm loop
  • Loop Accuracy Boundary:
    Additional to PROX OUT incremental scale-factor error
  • Maximum Loop Resistance:
    1000 ohm including cable at 35 VDC
  • Current Limiting:
    23 mA typical

Information

Information

Overview Manuals Common Applications Product Precautions
Bently Nevada 990-04-70-02-00 combines the four-mil transmitter span with a seven-metre NSv sensing chain in a bulkhead-mounted enclosure. The longer calibrated chain supports remote probe routing while retaining a proportional two-wire vibration output.
  • Extends the 0-4 mil peak-to-peak transmitter configuration to a seven-metre NSv chain.
  • Uses enclosure bulkhead screws instead of a DIN mounting clip.
  • Reports overall vibration through a proportional two-wire current loop.
  • Retains local PROX OUT access for gap and dynamic-signal investigation.

The seven-metre selection must be completed with the matching probe and extension cable rather than a five-metre component set. Confirm loop scaling after the longer sensing chain and bulkhead installation are secured.

Important Notice: This execution selects a 7.0 m NSv chain, bulkhead screws and no agency approval. Match every transducer component and verify the actual loop before applying the signal to machinery logic.

Bently Nevada 990-04-70-02-00 Manuals & Downloads
Bently Nevada 990-04-70-02-00 Official Technical Reference (PDF)Bently Nevada 990-04-70-02-00 Installation & Commissioning Guide (PDF)

The Technical Reference organizes the exact ordering identity, applicable characteristics and system boundary for this vibration transmitter. The Installation & Commissioning Guide covers identification, pre-installation checks, connections, functional verification and the acceptance record.

Seven-metre sensing routes
Connect a matched 3300 NSv chain where the probe-to-transmitter route requires the selected electrical length.
Remote panel mounting
Install the enclosure with option-02 bulkhead hardware and preserve service access.
Machine-control alarming
Deliver an overall-vibration process signal for controller trending and logic.
Diagnostic comparison
Compare loop current with the local dynamic output during an approved channel check.
Apply these checks to the exact Bently Nevada 990-04-70-02-00 item before returning its monitoring path to service.
1
Confirm the 04 range and matched 7.0 m NSv component chain before wiring 990-04-70-02-00.
2
Secure all four bulkhead screws without distorting the enclosure or blocking terminal access.
3
Verify polarity and voltage at the transmitter under the actual loop load.
4
Keep PROX OUT isolated from grounded AC-powered instruments through the specified adapter.
5
Limit the diagnostic BNC cable to 3 m and use the specified input loading.
6
Allow the startup inhibit to finish before interpreting a below-3.6 mA state as a fault.
7
Protect coaxial connectors against contamination and moisture at the installed location.
8
Complete the machine-specific functional check before enabling alarm or trip logic.

Technical notes

Technical notes

This execution selects a 7.0 m NSv chain, bulkhead screws and no agency approval. Match every transducer component and verify the actual loop before applying the signal to machinery logic.

FAQS

  • Why is the 70 code important on 990-04-70-02-00?
    It selects a 7.0 m 3300 NSv electrical system; do not substitute a five-metre chain.
  • What is the calibrated vibration span of 990-04-70-02-00?
    The 04 option selects 0-4 mil peak-to-peak, equivalent to 0-100 um peak-to-peak.
  • Does 990-04-70-02-00 include DIN-rail clips?
    No. Mounting option 02 is the bulkhead-screw execution.
  • How should loop resistance be checked for 990-04-70-02-00?
    Measure the complete loop and confirm it stays within the permitted value for the actual transmitter supply, including field cable and the receiving input.
  • Can the TEST input prove the machine probe installation for 990-04-70-02-00?
    The TEST input checks the transmitter loop path; it does not replace inspection of probe gap, cable condition and target response.
  • What happens during power-up on 990-04-70-02-00?
    The output remains below 3.6 mA for about two to three seconds before normal measurement becomes available.
  • What does the last 00 on 990-04-70-02-00 mean?
    No agency-approval option is selected; it does not establish a hazardous-area circuit approval.
  • Which readings belong in the 990-04-70-02-00 acceptance record?
    Keep the loop supply, load, zero/span result, steady output, diagnostic signal and full seven-metre component identity.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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