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        990-04-70-01-01

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        1001 reviews ｜ Need a Specific Revision?
        Bently Nevada 990-04-70-01-01 is a DIN-rail vibration transmitter configured with a 0–4 mil pp measurement range, 7 m system length and CSA Division 2 approval.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
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        Technical specifications for 990-04-70-01-01

        • Manufacturer:
          Bently Nevada
        • Part Number:
          990-04-70-01-01
        • Product Family:
          990 Vibration Transmitter
        • Product Type:
          Two-wire, loop-powered vibration transmitter
        • Stock:
          1
        • Full-scale Range:
          0–4 mils peak-to-peak (0–100 μm peak-to-peak)
        • System Length:
          7.0 m (23.0 ft)
        • Mounting Configuration:
          35 mm DIN rail clips
        • Agency Approval Option:
          CSA Division 2
        • Compatible Transducer:
          One 3300 NSv non-contacting proximity probe with matching extension cable
        • Supply Voltage:
          +12 to +35 VDC at the transmitter terminals
        • Signal Output:
          Proportional 4–20 mADC in a two-wire configuration
        • Loop Accuracy:
          Within ±1.5% of the specified full-scale range
        • Frequency Response:
          5 Hz to 6,000 Hz, +0/−3 dB
        • Probe Gap:
          0.5–1.75 mm (20–55 mils) from the target
        • Maximum Loop Resistance:
          1,000 Ω, including cable, at 35 VDC
        • Current Limiting:
          23 mA typical
        • Not OK Output:
          Falls below 3.6 mA within 100 μs after a Not OK condition
        • Operating Temperature:
          −35°C to +85°C (−31°F to +185°F)
        • Storage Temperature:
          −52°C to +100°C (−62°F to +212°F)
        • Relative Humidity:
          100% condensing, non-submerged, with protected coaxial connectors
        • 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 Applications Installation & Integration Environmental Diagnostics & Protection

        Features:

        • Converts proximity probe signals into a proportional continuous voltage output for real-time vibration monitoring.
        • Designed with interchangeable probe and extension cable matching, eliminating the need for individual field recalibration.
        • Constructed with a ruggedized enclosure that resists moisture, airborne contaminants, and industrial shock.
        This ordering option represents the standard 990-04-70-01-01 Proximitor Sensor unit configured with DIN-rail and panel mounting options for integration into 3300 series monitoring networks.

        The system converts dynamic non-contact shaft movement into standard current loop signals, enabling direct transmission to PLCs, DCSs, or plant asset management systems without extra signal conditioners.

        During installation, ensure probe gap setting is verified using standard feeling gauges and confirm that total cable length matches the unit's system length specification before power application.

        Availability: In Stock - Standard Shipping Available
        Bently Nevada 990-04-70-01-01 Proximitor Sensor 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.
        • Measures continuous shaft radial vibration on critical industrial turbomachinery.
        • Provides precision axial position measurement for thrust bearing wear protection systems.
        • Delivers phase reference and speed sensing inputs for high-speed rotating shafts.
        • Supports dual mounting configurations via a 35 mm DIN-rail clip or direct panel mounting holes.
        • Features standard screw terminal blocks for quick control loop wiring without special adapters.
        • Requires matched physical probe lengths and cable capacitance to maintain system calibration accuracy.
        • Operates reliably within ambient field temperatures ranging from -35°C to +85°C (-31°F to +185°F).
        • Features fully potted sensor housing to resist high humidity and process condensation exposure.
        • Engineered to sustain continuous industrial vibration and mechanical shock on heavy machinery housing.
        • Includes built-in Not OK self-diagnostic logic to detect probe fault or cable open-circuit status.
        • Incorporates internal circuit protection against field wiring reverse polarity and voltage surges.
        • Provides isolated signal output to eliminate ground loop interference in factory control networks.
        Description
        The Bently Nevada 990-04-70-01-01 converts signals from a compatible 3300 NSv proximity probe into a proportional 4–20 mA output. This two-wire, loop-powered design reports peak-to-peak vibration amplitude to a connected machinery control system. The control system can then use the signal for vibration alarming and protection logic.

        Designed primarily for centrifugal air compressors, the transmitter is also suitable for small pumps, motors and fans. Its compatibility with the compact 3300 NSv probe supports installations where available clearance is limited. The device provides a practical solution for general vibration measurement and long-term machinery vibration trending.

        An integrated Proximitor Sensor removes the need for a separate signal-conditioning unit. Independent zero and span adjustments support loop calibration, while the test input enables output verification with a function generator. The Not OK/Signal Defeat circuit helps prevent false alarms caused by a faulty probe or loose connection.
        Alternative Names
        990-04-70-01-01 990 04 70 01 01 99004700101 Bently Nevada 990-04-70-01-01 BN 990-04-70-01-01 990-04-70-01-01 Two-Wire Transmitter 990-04-70-01-01 Vibration Transmitter 990-04-70-01-01 3300 NSv Transmitter
        Technical notes
        Bently Nevada 990-04-70-01-01 supports general vibration trending and machinery protection logic but is not a substitute for a continuous plant-wide diagnostic system.
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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.
        VIEW ALL FAQS
        What is the measuring range of Bently Nevada 990-04-70-01-01?
        Bently Nevada 990-04-70-01-01 has a full-scale vibration range of 0–4 mils peak-to-peak, equivalent to 0–100 μm peak-to-peak.
        Which probe is compatible with Bently Nevada 990-04-70-01-01?
        Bently Nevada 990-04-70-01-01 accepts one non-contacting 3300 NSv proximity probe and a matching extension cable. The ordered configuration specifies a total system length of 7.0 metres.
        How is Bently Nevada 990-04-70-01-01 installed?
        Bently Nevada 990-04-70-01-01 uses 35 mm DIN rail clips. The probe must be positioned between 0.5 and 1.75 mm from the target to maintain the specified measurement range.
        Where is Bently Nevada 990-04-70-01-01 typically used?
        Bently Nevada 990-04-70-01-01 is intended primarily for centrifugal air compressors and small pumps, motors or fans that feed proportional vibration information into a machinery control system.
        What must be checked when replacing Bently Nevada 990-04-70-01-01?
        Confirm the complete ordering code, 0–4 mil pp range, 7 m transducer system, DIN-rail mounting, CSA Division 2 requirement, loop supply and installed 3300 NSv components. The official datasheet does not designate a universal replacement for every installation.
        Which manual and quotation details apply to Bently Nevada 990-04-70-01-01?
        Use the official 990 Vibration Transmitter Datasheet 141612 and the applicable installation documentation. For an accurate quotation, provide the complete model, required quantity, destination, existing probe and extension-cable details, and hazardous-area requirements.

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