Bently Nevada 1800/20-XX-90-02-00 Proximity Probe

Shaft Displacement Sensing with the 1800/20-XX-90-02-00

The 1800/20-XX-90-02-00 measures shaft displacement and vibration in rotating machinery. This proximity probe detects eddy current changes as the shaft surface moves beneath the tip. Reliability engineers therefore mount it on turbines, compressors, and large motors. Its threaded body installs onto machine brackets without special adapters or drivers.

Detailed Technical Parameters

Tip stability defines the 1800/20-XX-90-02-00, because the coil winding holds its electrical characteristics across the full temperature range. The probe tip senses target distance through a non-contact electromagnetic field. Meanwhile, the armored cable protects signal conductors from mechanical damage. Review the essential specifications in the table below.

Parameter	Specification
Function	Eddy current proximity probe for shaft displacement
Probe diameter	8 mm tip
Cable length	9 m armored cable
Dimensions (W × H × D)	8 × 60 × 8 mm (probe body)
Weight	Approximately 0.25 kg
Interface	Integral coaxial cable with connector
Component count	Coil element plus armored cable assembly
Energy storage	None (passive electromagnetic sensor)
Operating temperature	-35 °C to 180 °C

Integration into Monitoring Systems

The threads into the mounting bracket and aligns with the shaft target area. Commissioning engineers set the probe gap during installation checks. Consequently, displacement channels start collecting data within minutes. The armored cable withstands oil exposure and mechanical stress on turbine decks. Furthermore, the probe requires no field calibration beyond gap adjustment.

Why Plants Choose This Probe

Many power stations still rely on proximity probes for proven machinery protection. Hence, the serves as a dependable spare for keeping displacement channels online. Its standardized thread format simplifies stock management across multiple sites. In addition, the armored construction survives harsh turbine hall conditions. This probe keeps shaft position data accurate and maintenance schedules on track.