Bently Nevada 135473‑01 Keyphasor I/O

Technical Specifications

Model:135473‑01

Brand:Bently Nevada

Product Type:Isolated keyphasor I/O rear sub‑module

Matching Front‑panel:3500/25 enhanced keyphasor monitor front‑panel

Input Channel:2 isolated keyphasor signal input channels

Supported Sensor:magnetic pickup sensor,external‑powered eddy‑current keyphasor probe

Isolation:1500V opto‑isolation between channels and rack backplane

Terminal Type:internal screw terminals,internal barrier version

Function:field keyphasor signal conditioning,galvanic isolation,signal transmission to 3500/25 front‑panel

Remark:Cannot operate independently;must install behind 3500/25 front‑panel;introduces minor phase shift;designed mainly for speed measurement;for hazardous‑area signal loop with internal barrier

Module Form:Half‑height rack‑mount rear plug‑in daughter‑board

Weight:0.46 kg

Dimension:242 mm×112 mm×25 mm

Protection Grade:IP20

Certification:UL,CSA,CE,intrinsic‑safety related certification

Working Temperature:‑30℃ ~ +65℃,non‑condensing

Storage Temperature:‑40℃ ~ +85℃

Humidity:5%‑95% non‑condensing

Application:Steam turbine,gas turbine,compressor TSI machinery protection system,receive keyphasor signal for shaft speed,rotate phase reference,rotor dynamic analysis,system maintenance and spare‑part replacement.

Product Details

135473‑01 is isolated keyphasor I/O rear daughter‑board for Bently Nevada 3500/25 enhanced keyphasor front‑panel module,must be paired with 3500/25 front‑panel and cannot work alone.

It adopts internal barrier and internal screw terminal design,provides 2‑channel galvanic isolated input,mainly for magnetic‑pickup speed‑sensor signal access,also compatible with external‑powered eddy‑current keyphasor probe. 1500V opto‑isolation separates field side from rack backplane,suppresses ground loop interference when keyphasor signal is paralleled to multiple devices.

This I/O sub‑board will bring slight phase offset,mainly applied for shaft speed measurement;phase‑critical applications need to evaluate phase‑shift influence. Internal barrier supports hazardous‑area field wiring. Installed on rear side of 3500/25 front‑panel,transmits conditioned keyphasor pulse signal to front‑panel for speed calculation and phase reference for other monitor modules.

Note:This is legacy EOL spare component,widely used for replacement of turbine and compressor TSI monitoring & protection systems.