2100/00-02-10-01-00 Armored Eddy Current Probe Assembly Product Specification

The 2100/00-02-10-01-00 is a factory pre-calibrated integrated armored eddy current proximity probe belonging to 2100 series heavy-duty monitoring transducer lineup, engineered for non-contact displacement monitoring on critical rotating machinery such as steam turbines, centrifugal compressors, turbo-generators and heavy industrial pumps in petrochemical, power generation and metallurgical industries. Assembled with standard 8mm core sensing element encapsulated inside seamless stainless steel armored sleeve, the unit forms a complete vibration monitoring system when paired with designated matched extension cable and original proximitor driver, fully complying with API 670 international machinery protection standard for on-line continuous measurement of shaft radial vibration, axial thrust clearance and rotational keyphasor signal. All finished probes pass full linearity calibration, high-low temperature alternating aging test and hermetic tightness inspection before factory delivery to guarantee stable measuring accuracy under harsh working conditions with high temperature, dense oil mist and continuous mechanical vibration inside bearing housings. The sensor outputs proportional analog voltage signal to central monitoring rack for over-limit alarm and equipment trip interlock control to avoid severe mechanical failure caused by abnormal shaft operating status.

The segmented part number follows standardized 2100 series coding specification for customized probe configuration. The leading code 2100 represents heavy-duty all-armored eddy current probe series with anti-collision and oil-proof metal outer casing structure; the first suffix 00 stands for standard 8mm diameter internal sensing coil matched with regular aluminum alloy armor base without special customized core specification; the second code 02 defines built-in pre-molded integral outgoing cable directly fixed at probe rear end instead of split field wiring mode; the third segment 10 specifies total effective armored body length of 10 inches for medium-depth embedded mounting inside conventional thick-wall bearing pedestals; the fourth code 01 corresponds to standard 1/2-20 UNF fine thread as mounting screw specification for standard installation holes of bearing seat; the final suffix 00 refers to standard straight rear connector structure without customized sealing or explosion-proof certification under original factory calibrated parameter setting. Replacement with mismatched part number products will invalidate pre-set factory calibration and lead to measurement drift or unexpected protection loop tripping.

The entire armored outer tube and front protective component are precision machined from high-strength anti-corrosion stainless steel, delivering outstanding resistance against long-term erosion from high-temperature lubricating oil, oil vapor and accidental mechanical impact within closed bearing chambers. The built-in induction coil of sensing core is fully potted with high-temperature resistant epoxy resin to eliminate internal air gap, effectively preventing coil displacement and inter-turn short-circuit faults induced by long-time equipment cyclic vibration and fluctuating ambient temperature. Equipped with factory fixed integrated tail cable structure, field wiring only needs to connect cable terminal with matched proximitor input port, and random cutting, splicing or replacement of original cable is strictly prohibited to maintain original 75-ohm impedance and calibrated electrical characteristics. The standard exposed sensing tip design adapts universal surface-mounted and shallow embedded installation scenarios, effectively isolating assembly extrusion stress during mounting and avoiding tip abrasion in regular equipment operation. Built-in circuit self-diagnosis function can quickly reflect open-circuit or short-circuit wiring failure through obvious output voltage deviation to simplify daily field maintenance and troubleshooting work. Stable linear measuring performance can only be realized by original matching of this probe, supporting cable and designated proximitor module.

The matching proximitor driver requires nominal -24 VDC negative DC power supply with allowable input voltage range from -17.5 VDC to -26 VDC for normal industrial operation. Factory fixed calibration sensitivity is 7.87 V/mm (200 mV/mil) tested on standard AISI4140 carbon steel target material, with full-span linearity error controlled within ±5% as required by API 670 specification. Valid linear measurement range covers 0 mm to 2.54 mm to satisfy regular radial dynamic vibration and static axial clearance detection for large-diameter industrial rotating shafts. Frequency response covers DC up to 10 kHz to synchronously capture low-frequency thermal expansion drift and high-frequency shaft vibration signals of rotating equipment. The recommended pre-installation gap is arranged at the middle position of linear measuring range to maintain stable DC bias operating point for uninterrupted long-term equipment online monitoring.

The probe sensing head supports continuous operating temperature from -35°C to +120°C to fit high-temperature installation surroundings adjacent to heated bearing shells and turbine casings. Spare product storage temperature ranges between -55°C and +85°C under dry non-condensing storage environment; applicable working ambient relative humidity is 5%RH ~ 95%RH without dew condensation on probe housing and cable outer sheath. The unit can withstand regular industrial vibration of 10 Hz to 2 kHz generated by nearby running rotating machines. Long-term immersion in corrosive chemical liquid, acid mist and persistent high-temperature steam is forbidden to prevent casing corrosion and premature aging of internal insulating materials. For installation sites above 1000 meters altitude, routine inspection cycle shall be moderately shortened to ensure long-term operational reliability.

Cut off power supply of the whole monitoring circuit before field installation, screw the threaded probe body into pre-processed mounting hole of bearing pedestal or customized fixing fixture via 1/2-20 UNF standard thread, adjust installation clearance to factory recommended rated value and fasten lock nut tightly to prevent loosening caused by long-running mechanical vibration. During cable laying construction, separate probe integral cable away from high-current AC power line and inverter output wiring to reduce cross electromagnetic interference. Avoid sharp small-radius bending, excessive stretching and heavy extrusion on cable jacket to prevent inner conductor fracture and abnormal impedance variation. Within fixed maintenance cycle, regularly inspect probe outer armor for corrosion and mechanical damage, check integral cable outer layer for oil erosion and cracking, and confirm fastening tightness of rear connection terminal. When probe is damaged for replacement, only spare part with identical part number 2100/00-02-10-01-00 can be directly replaced to keep original monitoring system calibration consistent. All alternative spare probes complete full electrical parameter test and temperature cycling screening before factory shipment to ensure complete interchangeability on original monitoring loop.