Bently Nevada 990 Series Modules - 990-04-XX-02-05 MOD:167577-05

Technical Dossier

Product Details And Specifications

Bently Nevada 990 Series Technical Notes

The Bently Nevada 990 Series vibration transmitter is a field-mounted, 4–20 mA output transducer system engineered for continuous machinery protection in heavy industrial environments. Deployed across petrochemical refineries, nuclear power stations, offshore platforms, LNG terminals, and rotating equipment trains worldwide, the 990 Series occupies a critical position in the global condition monitoring infrastructure. Its two-wire loop-powered architecture allows direct integration with existing DCS and PLC analog input cards without auxiliary power supplies, reducing installation complexity in hazardous-area installations classified to ATEX Zone 1 and FM Class I Division 1 standards. The series interfaces natively with Bently Nevada 3300, 3500, and ADRE 408 DSPi systems, making it the preferred field device for plants operating legacy Bently Nevada machinery protection frameworks.

990 Series Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified production range of the Bently Nevada 990 Series. Each entry reflects a distinct configuration of probe interface, output range, area classification, or connector type.

990-04-XX-02-01: 4–20 mA transmitter, 0–10 mil pp range, standard temperature, 2-wire loop, M12 connector.
990-04-XX-02-02: 4–20 mA transmitter, 0–20 mil pp range, standard temperature, 2-wire loop, M12 connector.
990-04-XX-02-03: 4–20 mA transmitter, 0–30 mil pp range, standard temperature, 2-wire loop, M12 connector.
990-04-XX-02-04: 4–20 mA transmitter, 0–10 mil pp, extended temperature rating, ATEX Zone 1 certified.
990-04-XX-02-05 MOD:167577-05: 4–20 mA transmitter, 0–20 mil pp, extended temperature, ATEX/FM dual-certified, enhanced EMI shielding.
990-04-XX-02-06: 4–20 mA transmitter, 0–30 mil pp, extended temperature, ATEX Zone 1, conduit entry variant.
990-05-XX-02-01: Velocity-output variant, 4–20 mA, 0–1 in/s pk range, standard housing.
990-05-XX-02-02: Velocity-output variant, 4–20 mA, 0–2 in/s pk range, standard housing.
990-05-XX-02-05: Velocity-output variant, 0–2 in/s pk, ATEX Zone 1, extended temperature.
990-06-XX-02-01: Acceleration-output variant, 4–20 mA, 0–50 g pk range, standard housing.
990-06-XX-02-02: Acceleration-output variant, 4–20 mA, 0–100 g pk range, standard housing.
990-06-XX-02-05: Acceleration-output variant, 0–100 g pk, ATEX/FM dual-certified, extended temperature.
990-04-XX-01-02: Displacement transmitter, 0–20 mil pp, DIN rail mount housing variant.
990-04-XX-01-05: Displacement transmitter, 0–20 mil pp, DIN rail mount, ATEX Zone 1.
990-04-XX-03-05: Displacement transmitter, 0–30 mil pp, stainless steel housing, offshore/marine duty.
990-04-XX-04-05: Displacement transmitter, 0–10 mil pp, intrinsically safe barrier-compatible, Zener barrier interface.
990-05-XX-03-05: Velocity transmitter, 0–1 in/s pk, stainless steel housing, offshore/marine duty.