Bently Nevada 991 Series Modules - 991-06-XX-01-00 MOD 169955-01

Technical Dossier

Product Details And Specifications

Bently Nevada 991 Series Technical Notes

991 Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly encountered part numbers within the Bently Nevada 991 Series. Units are classified by primary function:

Thrust & Axial Position Transmitters

• 991-06-XX-01-00 MOD 169955-01: Field-mount thrust transmitter, 4–20 mA output, 0–200 mil range, DIN rail compatible.
• 991-06-XX-02-00: Thrust transmitter variant, extended range 0–500 mil, for large-frame turbine applications.
• 991-06-XX-03-00: Dual-output thrust transmitter, simultaneous 4–20 mA and 0–10 VDC outputs for redundant DCS inputs.
• 991-06-XX-04-00: Thrust transmitter with HART protocol overlay, compatible with AMS Device Manager and PACTware.
• 991-06-XX-05-00: High-temperature rated thrust transmitter, rated to 85°C ambient, for hot-section installations.

Radial Vibration & Position Transmitters

• 991-05-XX-01-00: Radial vibration transmitter, 4–20 mA, 100 mV/mil sensitivity, for journal bearing monitoring.
• 991-05-XX-02-00: Radial position transmitter, DC gap output, 200 mV/mil, direct rack interface.
• 991-05-XX-03-00: Dual-channel radial transmitter, X-Y plane measurement, single housing.
• 991-05-XX-04-00: Radial vibration transmitter with velocity integration output, mm/s RMS.

Speed & Phase Reference Transmitters

• 991-04-XX-01-00: Keyphasor signal transmitter, TTL-compatible pulse output, for phase reference and speed measurement.
• 991-04-XX-02-00: Speed transmitter, 4–20 mA output, 0–10,000 RPM range, for governor control interface.

Signal Conditioners & Interface Modules

• 991-01-XX-01-00: Proximitor signal conditioner, -24 VDC powered, for 7200 Series probe systems.
• 991-01-XX-02-00: Barrier/isolator module, ATEX/IECEx certified, for Zone 1 hazardous area installations.
• 991-02-XX-01-00: Power supply module, 24 VDC input, multi-channel distribution for 991 Series transmitter arrays.
• 991-02-XX-02-00: Redundant power supply module, automatic failover, for SIL 2 rated protection loops.
• 991-03-XX-01-00: Termination block assembly, 991 Series field wiring interface, DIN rail mount, 24-point.
• 991-03-XX-02-00: Marshalling panel sub-assembly, pre-wired 991 Series cluster, 8-channel capacity.