Configured for physical radial vibration amplitude monitoring in machine casings, the Bently Nevada 990-04-50-02-00 (990 Vibration Transmitter) provides direct physical/electrical execution.

Suffix Code Identification Matrix

• 990: Vibration Transmitter base platform configuration.

• 04: 0-4 mils peak-to-peak (0-100 um peak-to-peak) full-scale range allocation.

• 50: 5.0 meters (16.4 feet) matched proximity transducer system length.

• 02: Bulkhead screw mechanical mounting physical adaptation hardware.

• 00: Standard agency approval certification pathway not required.

Functional Transmitter Metrics

Transducer Conditioning and Impedance Interfacing

The solid-state driver circuitry translates raw high-frequency signals based on precise eddy-current probe scaling configurations. Proper sensor operation requires regular gap voltage validation (-10 VDC targets) at the terminal pins to ensure steady calibration parameters inside the linear measuring track. The transmitter captures complex rotor dynamics shifts without distortion, while the internal shielding block enforces structural cross-talk suppression against electrical field components from neighboring phase lines.

Standard Shipment Layout

• 1 Bently Nevada 990-04-50-02-00 Vibration Transmitter

• 2 Bulkhead Mounting Integration Screws

Mechanical Installation and Terminal Grounding Rules

Bulkhead Panel Assembly

• Align the back plate flush onto the unclassified cabinet surface, tracking local structural spacing clearances.

• Secure the transmitter housing using the supplied bulkhead screws to lock the assembly against machinery shock paths.

Coaxial Interfacing

• Match the 5.0 meters proximity cable line connector directly to the coaxial input socket, securing the physical threaded coupling.

• Isolate all low-voltage signal paths from primary power distribution conduit systems to maintain clean operational tracks.

Engineering Technical FAQ

• What specific operational role is assigned to the 23 mA typical current limiting component?

  The internal limiter clamps output current at 23 mA during field probe open circuits or line short circuits to protect the input channels of the PLC or DCS.

• Is hot-swapping or unpowered toolless extraction supported during active monitoring conditions?

  No, hot-swap maneuvers are unsupported; external loop excitation lines must be isolated at the terminal block before wire extraction.

• How does utilizing an incorrect line length alter the configured eddy-current probe scaling?

  The transmitter is factory-tuned to a 5.0 meters system footprint; mismatches shift the operational line impedance and distort measurements.

• What total hardware space parameters bound the shipping log requirements for this asset?

  The unboxed physical transmitter exhibits a mass profile of 0.44 kg inside total package dimensions of 7.3 x 5 x 10 cm.

• Why must field positioning operations maintain a clear gap voltage validation target of -10 VDC?

  The value of -10 VDC marks the geometric center of the linear zone, ensuring equal negative and positive dynamic tracking range.

• What physical mounting hardware must be integrated based on the 02 option code selection?

  The 02 designator indicates that the unit requires direct plate fastening using the supplied physical bulkhead screws.

• What ambient environmental thermal limitations govern continuous operations in the field?

  The internal circuit infrastructure operates continuously within safe performance limits across a range of -40 to +80 deg C.

• Does this transmitter include safety certifications for active deployment inside Zone 0 environments?

  No, the 00 option code indicates that agency certification is omitted; the device must reside inside unclassified control areas.