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- Bently Nevada
- 990 and 991 Transmitter
- 990-04-50-03-00
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PRODUCT DESCRIPTION
Loop powered vibration transmitter
Bently Nevada 990-04-50-03-00 is a two wire vibration transmitter configured for a five meter NSv probe system and a zero to four mils peak to peak range. The mounting option includes DIN clips and screws, while agency approvals are not requested.
The transmitter converts probe measurements into a proportional 4 to 20 mA signal for machinery control systems. Its integrated Proximitor function removes the need for a separate sensor unit. Observe the documented diagnostic output isolation requirements and recognize the limitations compared with a continuous vibration monitoring system.
The transmitter converts probe measurements into a proportional 4 to 20 mA signal for machinery control systems. Its integrated Proximitor function removes the need for a separate sensor unit. Observe the documented diagnostic output isolation requirements and recognize the limitations compared with a continuous vibration monitoring system.
BEFORE YOU BUY
Confirm the complete installed configuration
ACTUAL APPLICATIONS
Where 990-04-50-03-00 Fits Across Industrial Application Areas
Industrial uses span production and utility equipment, subject to verified product compatibility, installation requirements and operating conditions.
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01 · WATER & WASTEWATER
Municipal Wastewater Collection and Treatment
Sewage lift pumps serving municipal wastewater collection and treatment.Aeration blowers and sludge equipment in wastewater treatment plants. -
02 · POWER GENERATION
Electricity Generation and Power Plant Utilities
Gas and steam turbine generators in thermal power plants.Hydroelectric turbines and generators in conventional hydropower generating stations. -
03 · OIL & GAS
Oil Production, Gas Processing and Petroleum Refining
Turbines and compressors serving liquefied natural gas production facilities.Refinery compressors and process pumps serving downstream petroleum production.
Technical specifications for 990-04-50-03-00
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Product Model990-04-50-03-00
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Product ParametersLoop powered vibration transmitter
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In stock6 units
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ManufacturerBently Nevada
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Full scale range0 to 4 mils peak-to-peak (0 to 100 micrometers peak-to-peak)
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Configured system length5.0 m
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Mounting kitDIN clips and screws
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Approval order option00: not required
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InputOne 3300 NSv probe and matching extension cable
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Loop output4 to 20 mA DC, two-wire configuration
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Terminal power supply+12 to +35 Vdc; application limits apply
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Maximum loop resistance1000 ohms including cable at 35 Vdc
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Typical current limit23 mA
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Operating temperature-35 to +85 degrees C
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Storage temperature-52 to +100 degrees C
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Prox Out impedance10 kohms; calibrated for a 10 Mohm load
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Power-up inhibitOutput below 3.6 mA for 2 to 3 seconds
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Zero / span adjustmentNon-interacting external adjustments
View all additional
Alternative Names
990 04 50 03 00
990-04-50-03-00 vibration transmitter
990 and 991 Transmitter vibration transmitter
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
LOOP POWERED VIBRATION TRANSMITTER
Integrating 990-04-50-03-00
Bently Nevada 990-04-50-03-00 is a two wire vibration transmitter configured for a five meter NSv probe system and a zero to four mils peak to peak range. The mounting option includes DIN clips and screws, while agency approvals are not requested.
The transmitter converts probe measurements into a proportional 4 to 20 mA signal for machinery control systems. Its integrated Proximitor function removes the need for a separate sensor unit. Observe the documented diagnostic output isolation requirements and recognize the limitations compared with a continuous vibration monitoring system.
For 990-04-50-03-00, check the documented 990 and 991 Transmitter configuration before connecting it to existing equipment. The selected order is 0 to 4 mils peak-to-peak (0 to 100 micrometers peak-to-peak); 5.0 m; DIN clips and screws. Published family performance applies only under the specified test and installation conditions.
Features:
- Verify the complete order and configuration
- Use the applicable manufacturer installation guidance
- Keep component and complete-system ratings separate
The 990-04-50-03-00 vibration transmitter requires appropriate configuration before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Compare the full 990-04-50-03-00 identity with the installed assembly and manufacturer ordering information. Do not treat a different length, mounting arrangement, cable construction or approval option as an equivalent replacement merely because the product belongs to the same family.
Match full scale range, NSv system length, mounting and approval options. The transmitter does not supply all the capabilities of a continuous vibration monitoring system. Preserve the required diagnostic isolation and verify the receiving controller configuration.
No exact-order hardware revision, discontinuation date or designated successor was established in the reviewed manufacturer materials. Document revision Y identifies the publication, not the product hardware. Unverified lifecycle dates and replacement claims are not added.
Features:
- Match the full order before replacement
- Check system and installation conditions
- Do not infer a hardware revision from a document
The 990-04-50-03-00 vibration transmitter requires replacement verification against the complete installed configuration and current manufacturer documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikong-hosted reference documents. Match their product identity and scope to the supplied assembly, and consult the applicable manufacturer instructions before use. Accessories and additional documents are included only when expressly listed in the quotation.Features:
- Verify document identity before procurement or installation
- Match the complete order to the manufacturer document scope
- Accessories are supplied only when listed in the quotation
Documentation for the 990-04-50-03-00 vibration transmitter must be checked for document applicability before installation or commissioning.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size10 x 7.5 x 5.6 cm
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Shipping weight0.5 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8537101190
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OriginUSA
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 990-04-50-03-00
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Does 990-04-50-03-00 require a separate Proximitor Sensor?
No. The 990 incorporates the Proximitor function and accepts the specified NSv probe and matching cable. This order is configured for a five meter system. -
Which range does the 04 option select?
It selects 0 to 4 mils peak-to-peak, stated by the manufacturer as 0 to 100 micrometers peak-to-peak. Configure the receiving 4 to 20 mA input to the same range. -
What does mounting option 03 include?
The official ordering table identifies DIN clips and screws. It differs from option 01 for DIN clips alone and option 02 for bulkhead screws. -
Why can the output remain below 3.6 mA after power up?
A two to three second power-up inhibit signals that the device is not ready. A Not OK condition also drives the output below 3.6 mA. Diagnose the actual probe, wiring and power condition using the manufacturer instructions. -
Can a grounded oscilloscope be connected directly to PROX OUT?
The diagnostic output is not isolated from the current loop. The manufacturer strongly recommends the 990/991 test adapter and specifies it for grounded AC powered test equipment to maintain signal isolation and machinery protection integrity. -
Does the 4 to 20 mA signal provide phase or full diagnostic information?
No. It supplies overall peak-to-peak trending and cannot provide vibration phase. The manufacturer describes significant limitations compared with continuous monitoring, including unavailable advanced alarm and diagnostic functions.
READY TO VERIFY YOUR PART?
Get a 990-04-50-03-00 quote with price, lead time and revision check.
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