Bently Nevada · 3500 Machinery Protection System 3500/45 PWA 176449-04: How to Identify the Revision and Plan a Replacement A reliable replacement check starts with the complete 3500/45 identity—not a partial board number. This guide shows how to read the 176449-04 designation, match the rear I/O, and verify the rack and software before ordering or commissioning. Prepared: October 12, 2026 Proposed publication: On approval Technical review: Pending Reading time: 6 min   Representative product image only; it does not verify the revision or nameplate of a specific unit. The official Baker Hughes spare-parts list identifies 176449-04 as a 3500/45 Position Monitor . “PWA” is often used to describe a printed wiring assembly, but the manufacturer’s datasheet lists the spare as 176449-04; do not treat a PWA prefix alone as a complete rack configuration or proof of interchangeability. Before ordering, photograph the monitor label and board marking, then record the rear I/O module, termination arrangement, rack slot, and installed 3500 software/firmware versions. Quick identification: what each marking tells you Item to record What to verify Why it matters Monitor type 3500/45 Position Monitor Confirms the measurement-monitor family, not the complete I/O configuration. Spare / board number 176449-04, exactly as printed Baker Hughes lists this number as a 3500/45 Position Monitor spare. Hardware revision Capture the actual revision marking and serial/nameplate data The datasheet does not publish a blanket revision-to-revision interchange rule; confirm the exact unit with the installed system records or OEM support. Rear I/O and terminations Record the I/O part number, internal/external termination, terminal block, and cable Required I/O depends on transducer type; external termination blocks and cables are separately ordered. Rack and software Rack slot, RIM/TDI, configuration software and firmware versions System compatibility and configuration requirements can affect commissioning. Illustrative nameplate example: “3500/45 Position Monitor · Spare P/N 176449-04 · Revision [read from actual label] · Serial [read from actual label].” This is a field-recording example, not a photograph or transcription of a particular unit’s serial label. Illustrative replacement-check sequence based on the identification items in this guide; this is not an OEM wiring diagram. 176449-04 is not the whole replacement decision The 3500/45 is a four-channel position monitor. Baker Hughes states that the measurement and transducer input determine the required I/O module. Its datasheet lists these related I/O options: Related I/O part Documented configuration Check before replacement 135137-01 Position I/O with internal terminations for Proximitor, RPT, or DC LVDT inputs Confirm sensor family and internal terminal arrangement. 135145-01 Position I/O with external terminations for Proximitor, RPT, or DC LVDT inputs Confirm the matching external terminal block and cable. 139554-01 AC LVDT Position I/O with internal terminations Confirm AC LVDT application and installed termination. 139567-01 AC LVDT Position I/O with external terminations Confirm the corresponding external block and cable set. The ordering format is 3500/45-AA-BB: the first option identifies the I/O type and the second identifies agency approval. The complete order configuration and the installed rear I/O should be reconciled before treating a monitor as a direct replacement. Need a checked 3500/45 replacement quotation? Send the complete label, rear I/O part number, termination details, and rack/software information. Contact Us · Email Apter Revision and commissioning checks Do not infer that two boards are interchangeable because both are marked 3500/45 or share the 176449 family. Preserve the existing configuration and confirm each dependency before removing hardware. The cited Baker Hughes datasheet (141537 Rev. T) gives the following minimum versions when adding a 3500/45 to an existing system. Treat this as a document-specific baseline; verify the current OEM documentation and the actual installed rack before commissioning. System element Minimum stated in datasheet 141537 Rev. T Field action 3500/20 RIM Firmware revision G Record module type and firmware from rack diagnostics. 3500 Configuration Software Version 2.41 Check the engineering workstation version and saved rack configuration. 3500 Data Acquisition Version 2.20 Verify the installed data acquisition software baseline. 3500 Operator Display Version 1.20 Confirm the operator display version used at the site. 3500/93 Display Interface 135799-01, firmware revision G Confirm only when this display interface is part of the installed system. Valve Position using RPT 3500 Configuration Software 3.00 or later Apply this requirement to the documented RPT valve-position application. Take clear photos of the front label, board/PWA marking, rear I/O label, terminal blocks, connectors, and rack slot. Record the 3500 rack identity, RIM or TDI type, channel functions, transducer models, termination style, and current setpoints. Back up the rack configuration and record the software/firmware versions against the table above and the current applicable OEM documentation. Match the rear I/O and external termination path to the sensor type. Do not move field wiring based on the front monitor number alone. After an approved replacement, verify channel status, measured values, alarms, and configuration through the site’s maintenance procedure before returning the protection function to service. The monitor’s channels are programmed in pairs (1–2 and 3–4). The datasheet also limits Case Expansion to channels 3 and 4. A replacement review should therefore include the channel-pair assignment and the configured measurement, not only the physical fit. Functional arrangement summarized from Baker Hughes datasheet 141537 Rev. T; this is an explanatory diagram, not an electrical wiring drawing. Related listed part and documented customer example Related listed part: Bently Nevada 3500/45 176449-04 Position Monitor . Product imagery is representative; confirm the offered unit’s condition, revision, and quantity in the quotation. Related success case: In Apter Power’s published Bently Nevada audit case, a customer reviewed accelerometers, extension cables, and 3500/22M modules; zero discrepancies supported a follow-up order covering 11 machines. This is a related 3500-system verification example, not a 3500/45 replacement case. Read the documented Bently Nevada audit case . FAQ Does 176449-04 identify a 3500/45 Position Monitor? Yes. Baker Hughes lists spare part 176449-04 as a 3500/45 Position Monitor in datasheet 141537. Confirm the complete label on the unit before ordering. Is “PWA176449-04” enough to select a direct replacement? No. Record the monitor number and actual hardware revision, then verify the rear I/O, termination path, sensor type, rack configuration, and software/firmware requirements. Can any 3500/45 rear I/O module be reused? No. The required I/O depends on the measurement and transducer input. Match the existing internal or external termination configuration and confirm separately ordered blocks and cables where applicable. Does the datasheet confirm that different hardware revisions are interchangeable? It does not provide a general revision interchange table. Check the installed system records and obtain OEM confirmation for the exact revision and application when compatibility is uncertain. What information should be included in a 3500/45 replacement request? Include clear photos of the full nameplate and board marking, the rear I/O number, termination details, transducer type, rack slot, software/firmware versions, quantity, and delivery destination. Where can I request availability and technical-document support? Use the product page or email sales1@apterpower.com . Apter Power can review the supplied identification details and clarify the quotation scope. Verify the complete replacement path before purchase Send your 3500/45 label and rear I/O details for a quotation and configuration review. Contact Us · sales1@apterpower.com Official sources and related records Baker Hughes, 3500/45 Position Monitor Datasheet 141537 — monitor identity, I/O options, channel configuration, rack/software requirements, and listed spares. Baker Hughes, 3500 Machinery Protection Systems — 3500/45 product-family overview. Apter Power product listing for 3500/45 176449-04 — related listed item; confirm current condition, revision, and quantity. Apter Power Bently Nevada audit case — related 3500-system verification case; not a 3500/45 replacement claim. Apter Power team profiles — public author and proposed reviewer role references. Pre-publication checks: The public author/profile details are prepared from the existing Apter author link and team page. Confirm May as author, confirm the Apter Power Team as the reviewer after review, and enter the actual review date before publication. Proposed publication date is set only when the post is approved and saved.

Learn why every Bently Nevada 3300 XL probe suffix matters. This practical guide explains 330101–330104 ordering codes, mounting threads, case dimensions, cable protection, agency approvals, and how to match probe, extension cable and Proximitor system length before purchase or replacement. .ap-code-guide{--ink:#113547;--navy:#002e3e;--cyan:#31cccd;--cyan-soft:#e9fbfb;--line:#d7e7eb;--paper:#fff;--muted:#58727e;max-width:1040px;margin:0 auto;color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.72;background:#fff} .ap-code-guide *{box-sizing:border-box}.ap-code-guide a{color:#007e92;text-decoration:none;overflow-wrap:anywhere}.ap-code-guide a:hover{text-decoration:underline} .ap-article-header{margin-bottom:34px}.ap-cover{display:block;width:100%;height:auto;border-radius:20px;box-shadow:0 18px 44px rgba(0,46,62,.17)} .ap-title{margin:30px 0 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h3{font-size:18px!important}.ap-part-list{grid-template-columns:1fr}.ap-code-guide .ap-panel-lede,.ap-length-item span,.ap-part-item span,.ap-part-item em{font-size:15px!important}.ap-cta{padding:24px 20px}.ap-figure{margin:20px 0 26px}} During a turbine or compressor outage, a maintenance team may need one replacement proximity probe before the machine can return to service. The request often begins with a short description: “Bently Nevada 3300 XL, 8 mm probe, one-metre cable.” That sounds specific, but it is not enough to identify the correct product. A visually similar probe may have the wrong mounting thread. A cable may be mechanically connectable but produce the wrong total electrical length. An armored probe may be supplied where the installation requires an unarmored lead, or an approval suffix may not match the site documentation. Each of these differences is contained in the ordering code. This is why understanding the full code matters. It is not only a task for instrumentation engineers. Maintenance planners need it to avoid extending an outage, buyers need it to compare quotations correctly, and suppliers need it to identify the exact configuration rather than quote a similar-looking product. Is the Ordering Code Really Important? Yes. For a Bently Nevada 3300 XL 8 mm probe, the ordering code answers five practical questions: Will the probe fit the existing threaded hole or mounting bracket? Is the probe body long enough to reach the target at the correct installation depth? Will the probe and extension cable match the electrical length of the Proximitor Sensor? Does the cable have the required mechanical and environmental protection? Does the ordered configuration carry the approval option required by the project? The probe tip diameter alone cannot answer any of these questions. Even when two products are both described as “3300 XL 8 mm probes,” their complete codes may describe different mounting, cable and approval configurations. Start with the Measurement Chain, Not the Probe Alone A standard 3300 XL 8 mm proximity transducer system contains: A proximity probe. An extension cable, except in a one-metre probe-only system. A Proximitor Sensor. The probe observes a conductive target without contact. The Proximitor Sensor converts the change in probe-to-target distance into a proportional voltage used for static position and dynamic vibration measurement. Common duties include radial shaft vibration, axial position, Keyphasor phase reference and speed measurement on fluid-film bearing machines. The three components form one calibrated measurement chain. Selecting the probe correctly is essential, but it is only the first part of the job. The 3300 XL Probe Code in One View Read the model as a structured specification: base number, body dimensions, total probe length, cable option and approval option. The standard forward-mount threaded probe uses this format: Part Number – AA – BB – CC – DD – EE Consider the photographed model 330101-00-20-10-02-00: Code position Value What the value tells the buyer Part number 330101 3/8-24 UNF forward-mount probe without armor AA 00 0.0 in unthreaded length BB 20 2.0 in overall case length CC 10 1.0 m total probe length DD 02 Standard cable with ClickLoc connector; factory-installed connector protector not selected EE 00 Agency approval not required Instead of treating the number as one long string, read it as a short technical specification. The following application scenarios show why each section matters. Scenario 1: Replacing a Probe in an Existing Bearing Housing The base number is the first compatibility gate: it determines the mounting thread, armor and dimensional unit system. Suppose a maintenance engineer removes a damaged probe from a compressor bearing housing. The replacement has the correct 8 mm tip, but its thread is M10 × 1 while the installed bracket is 3/8-24 UNF. The probe cannot be treated as equivalent simply because the outside diameters appear close. The six-digit base number identifies the thread system and whether the standard probe lead has armor: Base number Mounting thread Cable armor AA and BB unit system 330101 3/8-24 UNF Without armor Inches 330102 3/8-24 UNF With armor Inches 330103 M10 × 1 Without armor Millimetres 330104 M10 × 1 With armor Millimetres This table gives the first selection decision: Choose 330101 or 330102 for a 3/8-24 UNF installation. Choose 330103 or 330104 for an M10 × 1 installation. Choose the armored version when the lead requires additional mechanical protection. Armor protects the cable against physical damage. It is not the same as a connector protector, FluidLoc cable or an underwater probe construction. Those features solve different problems and should not be used as interchangeable descriptions. Scenario 2: The Thread Is Correct, but the Probe Cannot Reach the Target A probe may have the correct thread and still be unsuitable for the machine. The unthreaded length and overall case length determine how the probe passes through a housing, bracket or standoff and whether sufficient thread remains for secure adjustment. For 330101 and 330102 imperial probes: Code Meaning Ordering range Example AA Unthreaded length 0.0 to 8.8 in, in 0.1 in increments 30 = 3.0 in BB Overall case length 0.8 to 9.6 in, in 0.1 in increments 60 = 6.0 in The unthreaded length must be at least 0.8 in shorter than the overall case length. For 330103 and 330104 metric probes: Code Meaning Ordering range Example AA Unthreaded length 0 to 230 mm, in 10 mm increments 06 = 60 mm BB Overall case length 20 to 250 mm, in 10 mm increments 13 = 130 mm The unthreaded length must be at least 20 mm shorter than the overall case length. The unit change is easy to miss. In 330104-00-06-05-01-05, BB = 06 means a 60 mm case. It does not mean 0.6 in or 6 mm. Reading the base number before AA and BB prevents this common mistake. Scenario 3: The Probe Fits, but the Measurement Chain Is the Wrong Length A 1.0 m probe plus an 8.0 m extension cable makes a 9.0 m chain—not a 5.0 m system. This is one of the most important compatibility checks in the entire 3300 XL system. 01 Decode the CC Code and Build the System Length The CC group identifies the total probe length, including its integral lead. Use it with the extension-cable length to build the Proximitor Sensor system length. CC code Total probe length 05 0.5 m 10 1.0 m 15 1.5 m 20 2.0 m 30 3.0 m; available only on 330101 and intended for a 9 m system 50 5.0 m; intended for a 5 m Proximitor Sensor 90 9.0 m Matching rule Probe total length + extension-cable length = Proximitor Sensor system length 1.0 m system 1.0 m probe + no extension cable 5.0 m system 0.5 m + 4.5 m, or 1.0 m + 4.0 m 9.0 m system 0.5 m + 8.5 m, or 1.0 m + 8.0 m 02 Check the Photographed Parts The four real products illustrate why matching the family and total electrical length matters. 330101-00-20-10-02-00 1.0 m unarmored UNF probe With an 8.0 m cable, it forms a 9.0 m system. 330104-00-06-05-01-05 0.5 m armored M10 × 1 probe Requires a 4.5 m cable for 5 m, or an 8.5 m cable for 9 m. 330130-080-02-00 8.0 m standard extension cable with connector protector Use with a 1.0 m probe and a 9 m Proximitor option. 330180-50-00 5.0 m panel-mount Proximitor Sensor; approval not required Probe and extension cable must total 5.0 m. Key compatibility result The key conclusion is that the four photographed products do not form one complete matched chain. The 1.0 m 330101-00-20-10-02-00 plus the 8.0 m 330130-080-02-00 totals 9.0 m. The photographed 330180-50-00 is a 5.0 m sensor, so it is not the correct Proximitor Sensor for that combination. Likewise, the 0.5 m 330104-00-06-05-01-05 plus the 8.0 m cable totals 8.5 m, which does not match a standard 1 m, 5 m or 9 m Proximitor system. A compatible 9 m chain would require an 8.5 m extension cable with this probe. This is exactly why three products that share the same platform and connectors should not automatically be photographed, quoted or installed as one compatible set. Configuration check Need Apter Power to check an installed measurement chain? Send the complete probe, extension-cable and Proximitor Sensor part numbers, together with clear label photographs and the target material. Request a configuration review and quotation at https://www.apter.com/contact . Request a configuration review Scenario 4: Selecting Cable Protection for the Machine Environment After the mechanical and electrical-length decisions are correct, the DD group defines connector protection and cable construction for standard probes: DD code Factory-installed connector protector Cable construction 01 Included Standard cable 02 Not selected Standard cable 11 Included FluidLoc cable 12 Not selected FluidLoc cable These options address different installation risks: Armor, selected through the probe base number, protects the lead against mechanical damage. A connector protector improves environmental protection around the ClickLoc connection. FluidLoc is intended to reduce oil or other liquid migration through the cable interior. Underwater service requires a separate underwater probe design. For connections exposed to turbine oil, the Bently Nevada datasheet advises against using silicone tape as a substitute for the connector-protection arrangement. The cable option should therefore be selected from the actual installation environment, not simply from price or appearance. Scenario 5: The Plant Requires Hazardous-Area Documentation The EE group identifies the agency approval option in the standard ordering table: EE code Meaning 00 Agency approval not required 05 CSA, ATEX and IECEx approvals Code 05 does not by itself approve every installation. The final design still depends on the exact system components, barriers, wiring, installation drawing and site area classification. When an existing label carries a regional or document-controlled suffix such as CN, BR or RU, do not automatically replace that suffix with 05. The exact certificate and current ordering documentation should be reviewed before quotation or installation. What About Reverse-Mount, Smooth-Case and High-Temperature Probes? The five-suffix format described above applies to the common forward-mount 330101, 330102, 330103 and 330104 probes. Other constructions use different base numbers: Construction Standard-temperature base numbers Extended-temperature base numbers When it is considered Forward mount, 3/8-24 UNF 330101 / 330102 330191 / 330192 Common imperial threaded mounting Forward mount, M10 × 1 330103 / 330104 330193 / 330194 Common metric threaded mounting Reverse mount 330105 / 330106 330195 / 330196 Rear-access or sleeve-based mounting Smooth case 330140 / 330141 330197 / 330198 Clamp-bracket installation rather than a threaded case The extended-temperature-range probe is rated up to 218 °C, and the ETR extension cable is rated up to 260 °C. ETR components can be used with the standard 3300 XL Proximitor Sensor, but when an ETR component is included, the system is subject to the ETR accuracy limits. This is a permitted system configuration, not a reason to assume that the standard-temperature accuracy specification remains unchanged. Compatibility: What Can Be Mixed and What Must Stay Matched? Within the 3300 XL 8 mm family, probes, extension cables and Proximitor Sensors are designed to be interchangeable when the correct family, calibration and total electrical length are maintained. Individual standard components do not require bench matching for the standard AISI 4140 steel calibration. The 3300 XL 8 mm family is also electrically and physically interchangeable with earlier non-XL 3300-series 5 mm and 8 mm components, subject to the published installation conditions. When XL and non-XL components are mixed, system performance is limited to the older non-XL specification. Mechanical connection therefore does not mean that every XL performance claim is retained. Standard systems are calibrated to an AISI 4140 steel target. Other target-material calibrations are available, but the published standard accuracy and interchangeability specifications do not apply in the same way to those systems. If the shaft, collar or observed target is not AISI 4140 steel, include the target material and existing calibration information in the RFQ. Different proximity-probe families must remain correctly matched. An 8 mm probe should not be connected to an NSv, 11 mm, 25 mm or 50 mm Proximitor Sensor merely because a connector appears similar. Bently Nevada also advises against combining probes, extension cables and drivers from different manufacturers. A mixed system may change scale factor or linearity and can affect the effective alarm or trip response. Which Bently Nevada Probe Family Should Be Considered? Probe family Nominal linear range Nominal scale factor Typical selection reason 3300 5 mm 2.0 mm 7.87 V/mm The 8 mm body is physically too large for the available mounting space 3300 XL 8 mm 2.0 mm 7.87 V/mm Normal starting point for shaft vibration, position, Keyphasor and speed measurement where the probe fits 3300 XL NSv 1.5 mm 7.87 V/mm Side-view, rear-view, counterbore or small-target clearance restricts a standard 5/8 mm system 3300 XL 11 mm 4.0 mm 3.94 V/mm A longer measurement range is required 3300 XL 25 mm 12.7 mm 0.787 V/mm Differential-expansion measurement on medium to large steam turbine generators The 8 mm probe is recommended where its dimensions fit because its larger probe body and thicker tip encapsulation provide greater resistance to physical abuse than the smaller 5 mm construction. That does not make the 8 mm family a universal substitute: mounting space, measurement range, side-view clearance and the matching Proximitor family still govern the decision. How to Read an Actual Nameplate Real label example supplied by Apter Power: confirm the full P/N together with the serial number and visible construction. The photographed label for 330101-00-20-10-02-00 provides a complete example: 330101: forward-mount 8 mm probe, 3/8-24 UNF, without armor. 00: 0.0 in unthreaded length. 20: 2.0 in overall case length. 10: 1.0 m total probe length. 02: standard cable and ClickLoc connector, without the selected factory-installed connector protector. 00: agency approval not required. A useful acceptance photograph should show more than the code alone. Include the complete part number, manufacturer marking, serial number or date code where present, probe tip, thread, armor or unarmored lead and ClickLoc connector. A close-up label confirms identity, while an overall photograph confirms the visible mechanical configuration and product condition. Six Ordering Mistakes That Cause Avoidable Delays Ordering by “8 mm probe” without checking the complete part number. Reading AA and BB as inches on a metric base number, or as millimetres on an imperial base number. Treating CC as a convenient routing length rather than part of the calibrated system length. Confusing armor, connector protection, FluidLoc and underwater construction. Treating an approval suffix as approval of the entire hazardous-area installation. Combining different electrical lengths, probe families or manufacturers because the connectors fit. Related Bently Nevada 3300 XL Models Listed by Apter Power The following related models were listed on Apter Power when this article was prepared. Availability, exact label, approval documents, condition and delivery time should be reconfirmed when the quotation is issued. Model Ordering-code snapshot Apter Power page 330101-00-16-05-02-00 UNF, no armor, 1.6 in case, 0.5 m lead, standard cable, approval not required https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-8-mm-Probe/330101-00-16-05-02-00 330101-00-20-10-02-00 UNF, no armor, 2.0 in case, 1.0 m lead, standard cable, approval not required https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-8-mm-Probe/330101-00-20-10-02-00 330102-00-40-05-01-00 UNF, armored, 4.0 in case, 0.5 m lead, standard cable with connector protector https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-8-mm-Probe/330102-00-40-05-01-00 330104-00-06-05-01-05 M10 × 1, armored, 60 mm case, 0.5 m lead, connector protector, approval option 05 https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-8-mm-Probe/330104-00-06-05-01-05 330194-05-13-10-05 Metric armored ETR probe, 50 mm unthreaded length, 130 mm case, 1.0 m lead, approval option 05 https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-8-mm-Probe/330194-05-13-10-05 330130-080-02-00 8.0 m standard extension cable with connector protector, approval not required https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-Extension-Cable/330130-080-02-00 330180-50-00 5.0 m panel-mount Proximitor Sensor, approval not required https://www.apter.com/Bently-Nevada/3300-XL-8mm-Proximity-Transducer-System/3300-XL-Proximitor-Sensor/330180-50-00 What to Send with a Bently Nevada 3300 XL RFQ An accurate quotation should begin with: The complete probe part number from the label. The extension-cable part number and length. The Proximitor Sensor part number and mounting option. The shaft or target material and any special calibration information. The required hazardous-area or country approval. Quantity, destination and clear photographs of the labels, probe body, cable and connectors. Quote with confidence Apter Power can decode the complete ordering number, compare it with the installed measurement chain, review related stock and prepare a configuration-specific quotation. Contact Apter Power at https://www.apter.com/contact , email sales1@apterpower.com , or use WhatsApp at +86 181 0690 9650 . Send your RFQ Email Apter Power Official Technical Sources Bently Nevada, 3300 XL 8 mm Proximity Transducer System Datasheet, 141194 Rev. AM: https://dam.bakerhughes.com/m/23d2a1de24360b13/original/3300-XL-8mm-Proximity-Transducer-System-Datasheet-141194-pdf.pdf Bently Nevada, Proximity Probes, Sensors & Transducer Systems: https://www.bakerhughes.com/bently-nevada/sensors/proximity-sensors Bently Nevada, Proximity Probe System Interchangeability—Don’t Build a “Frankenstein” System: https://www.bakerhughes.com/bently-nevada/orbit-home/orbit-article/proximity-probe-system-interchangeability-dont-build Bently Nevada, 3300 5 mm Transducer System Datasheet, 172036: https://dam.bakerhughes.com/m/3048672186f80f8/original/3300-5-mm-Transducer-System-Datasheet-172036-pdf.pdf Bently Nevada, 3300 XL NSv Proximity Transducer System Datasheet, 147385 Rev. R: https://dam.bakerhughes.com/m/7a79b853504f738/original/3300-XL-NSv-Proximity-Transducer-System-Datasheet-147385-pdf.pdf Bently Nevada, 3300 XL 11 mm Proximity Transducer System Datasheet, 146256 Rev. T: https://dam.bakerhughes.com/m/27a2d91f28aadd41/original/3300-XL-11mm-Proximity-Transducer-System-Datasheet-146256-pdf.pdf Bently Nevada, 3300 XL 25 mm Proximity Transducer System Datasheet, 163236 Rev. M: https://dam.bakerhughes.com/m/69ee6d965e942dae/original/3300-XL-25mm-Proximity-Transducer-System-Datasheet-163236-pdf.pdf Ordering tables and approvals can change with document revisions. Check the current Baker Hughes/Bently Nevada publication and the exact certificate set before releasing a purchase order.

Technical Guide GE Mark VIe Vibration Monitoring INSTALLED MODULE IS220PVIBH1A Legacy BPPB-based Mark VIe vibration I/O pack H1A generation 1,150 Hz bandwidth REPLACEMENT COMPATIBILITY REVIEW IS220PVIBH1A → IS420PVIBH1B Replacement is practical only after the installed system and configuration are verified. ControlST V06.01+ Firmware 5.01+ for mixed/online Approved TVBA/WNPS Simplex / TMR Replacement is possible—subject to compatibility checks Yes—but the correct answer depends on ControlST version, module firmware, terminal-board configuration, redundancy architecture, and the vibration application settings already in service. IS420PVIBH1B is the current replacement path, but it should not be treated as a blind plug-and-play swap. A planned replacement is generally practical when the system meets the software, firmware, terminal-board, and redundancy conditions documented for the newer PVIB hardware. Request a Compatibility Review Email sales1@apterpower.com Before ordering, confirm: ControlST V06.01 or later Firmware 5.01 or later for mixed/online replacement cases Simplex or TMR topology Approved TVBA/WNPS terminal-board arrangement Filtering and GAP configuration requirements What changes between the two PVIB generations? Selection point IS220PVIBH1A IS420PVIBH1B Engineering implication OEM lifecycle Obsolete catalog GE-listed replacement (2021 notice) Use the newer catalog number for a planned lifecycle migration. Core electronics BPPB with BAFA/KAPA architecture BPPC with BBAA architecture The internal hardware generation changes; configuration verification is required. ControlST support Supported in legacy installations Minimum V06.01 Upgrade ControlST before commissioning H1B in an older system. Firmware condition Legacy revisions vary by site 5.01 or later for online/mixed cases Record all module firmware levels before changing one leg of a TMR set. Mixed TMR set Permitted only when all three packs meet the required firmware level and Enhanced mode is not used. A mixed set is conditional—not a default configuration. Enhanced mode Not the target platform All three packs should be H1B Do not mix generations when Enhanced mode is required. Signal bandwidth Confirm the installed application Up to 4,500 Hz application bandwidth Review low-pass filters and GAP settings to prevent unintended behavior. Terminal boards Commonly TVBAH2A / WNPSH1A Approved TVBA/WNPS combinations vary by panel certification Verify the exact terminal-board catalog number from the cabinet or drawing set. Use the hardware label—not appearance alone The enclosure family can look similar across revisions. The catalog number, functional revision, firmware, power rating, and terminal-board information should be recorded before a replacement is selected. Real module example Confirm Ethernet ports, power connector, DC-37 interface, enclosure condition, and the exact catalog number. Nameplate example Photograph the complete label at readable resolution. Include the functional revision and any site asset tag. A five-step replacement check 1 Capture the installed hardware Record PVIB and terminal-board catalog numbers, revisions, and cabinet topology. 2 Check ControlST Confirm that the project and workstation support the H1B minimum software level. 3 Audit firmware Compare all packs in the simplex or TMR group, especially for an online change. 4 Review configuration Validate filters, sensor channels, Keyphasor inputs, GAP blocks, and redundancy mode. 5 Test before return to service Complete loop checks, diagnostics, alarms, and vibration-channel validation. What is not guaranteed The word “replacement” does not mean that every IS220PVIBH1A can be exchanged for IS420PVIBH1B without a software update, configuration review, or terminal-board check. Site drawings and the installed ControlST project remain the final engineering reference. Parts that may support the replacement plan Model Reference stock Typical role Next action IS220PVIBH1A 5 units Legacy vibration I/O pack for maintenance continuity Request availability IS220PVIBH1AL 3 units Suffix variant; exact interchangeability must be verified Verify revision IS200WNPSH1A / IS200WNPSH1AAA 1 unit Negative power-supply daughterboard used with TVBAH#A terminal boards Check terminal board IS420PVIBH1B Sourcing on request Current replacement-path vibration monitor module Request sourcing support Inventory changes continuously. Apter Power will reconfirm condition, revision, quantity, and lead time during quotation. Documents used for the compatibility review GEH-6721, Volume II Mark VIe System Guide PVIB/YVIB hardware architecture, firmware, TMR mixing, online replacement, channel behavior, and configuration guidance. GEZ-S2046 Extended Product Lifecycle Notice Records IS220PVIBH1A as the obsolete catalog number and IS420PVIBH1B as the available catalog number, with ControlST V06.01 listed as the minimum. GEH-6725R Hazardous Location Equipment Lists approved PVIB/YVIB modules, terminal-board combinations, ratings, and classified-location requirements. View the Apter-hosted reference PDF Ready to verify your replacement path? Send the installed PVIB nameplate, ControlST version, firmware level, terminal-board catalog number, and simplex/TMR architecture. Apter Power can support quotation, technical-document review, sourcing, and system matching. Request a Quote & Technical Review Email sales1@apterpower.com © 2026 Apter Power. Technical content is provided for selection support; final suitability depends on the installed system configuration. 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Keep Your GE Mark VIe Systems Running From turbine control panels to critical power-generation assets, GE Mark VIe systems depend on correctly matched I/O hardware. When an IS220PAICH1A needs replacement, the revision letter matters—but it is only one part of the compatibility decision. IS220PAICH1A Rev C vs D vs E vs F What Changes—and Can These Revisions Be Interchanged? The GE IS220PAICH1A is a PAIC Analog Input/Output Pack used in the Mark VIe distributed I/O architecture. It connects one or two I/O Ethernet networks to a compatible analog terminal board. According to GEH-6721, the PAICH1 family supports 10 analog inputs and two 0–20 mA analog outputs. Channels 1–8 may be configured for voltage or current-loop inputs, while channels 9–10 support current inputs. The pack also includes dual Ethernet interfaces, a three-pin power connector, diagnostic indicators, and a DC-37 terminal-board interface. Rev C, Rev D, Rev E, and Rev F identify assembly revisions of the same base model. Publicly available GE manuals confirm the common PAICH1A function and terminal-board compatibility, but they do not provide a revision-by-revision engineering change list for C, D, E, and F. Therefore, these revisions should be treated as conditionally compatible—not automatically interchangeable. View GE Manual Revision Comparison and Selection Guide IS220PAICH1A Rev C IS220PAICH1A Rev D IS220PAICH1A Rev E IS220PAICH1A Rev F All four versions retain the IS220PAICH1A base part number and the PAIC analog I/O function. However, GE public documentation does not identify the exact component, firmware, calibration, or manufacturing changes introduced by each revision. IS220PAICH1A Match the Full Part Number Verify the Terminal Board Check Firmware and ToolboxST Test Before Returning to Service A higher revision letter does not automatically guarantee backward compatibility. Cross-revision replacement should be managed as a controlled maintenance change and approved under the site's engineering and configuration procedures. Contact for inquiry IS220PAICH1A Revision and Selection Table Revision Confirmed Public Information Published Revision-Specific Changes Selection Recommendation Rev C IS220PAICH1A PAIC Analog I/O Pack. The revision is visible in independent industrial inventory records. No detailed Rev C change list was found in publicly available GE manuals. Use the same revision whenever possible. Record the existing firmware, terminal board, serial number, and diagnostic status before replacement. Rev D Same IS220PAICH1A base family and common PAIC functional description. No public GE document was found that defines the exact C-to-D hardware or firmware changes. Treat Rev D as a candidate replacement only after checking the terminal board, controller version, firmware compatibility, and site configuration. Rev E Listed by independent suppliers as an IS220PAICH1A Analog I/O Pack for the Mark VIe platform. No public GE revision matrix was found that identifies the exact D-to-E engineering changes. Do not assume that a newer revision is an unconditional drop-in replacement. Require nameplate photographs and a functional test report. Rev F Appears in independent IS220PAICH1A revision indexes and quotation databases. No official public C/D/E/F comparison or Rev F change notice was found. Confirm that “Rev F” appears on the physical GE label. Obtain the serial number, test documentation, warranty, and written substitution approval. Important: The final “A” in IS220PAICH1A is part of the base product number. It is not the same as the separate assembly revision shown as “REV C,” “REV D,” “REV E,” or “REV F” on the nameplate. Are Rev C, D, E, and F Interchangeable? The revisions belong to the same functional product family, but the available public documentation does not support a blanket statement that every revision can be exchanged without verification. A replacement should pass four compatibility checks: 1. Mechanical and terminal-board compatibility Confirm the complete terminal-board part number and revision. GE hazardous-location documentation identifies IS200STAIH1A, IS200STAIH2A, and IS200TBAIH1C as approved accessories for IS220PAICH1A. 2. Electrical and signal compatibility Verify the 28 Vdc supply, input types, output ranges, transmitter power, channel scaling, and field-loop loads. If the application requires a 0–200 mA output, evaluate the PAICH2 family rather than assuming that PAICH1A provides this function. 3. Firmware and system compatibility Check the Mark VIe controller version, ToolboxST version, I/O-pack firmware baseline, site patches, and applicable GE instructions. After installation, there should be no firmware, board-compatibility, IONet, or diagnostic alarms. 4. Functional testing and rollback Perform channel checks, analog loop verification, output feedback tests, alarm checks, and TMR voting tests where applicable. Keep the removed pack available until the replacement has passed site acceptance testing. Nameplate and Physical Identification Example Before accepting a unit, request clear photographs showing: • The complete IS220PAICH1A part number • The separate REV C, REV D, REV E, or REV F marking • The serial number and barcode • The power and environmental ratings • Hazardous-location or certification markings • Both RJ45 ports, the power connector, and the DC-37 connector • Connector pins, mounting studs, seals, and any repair evidence Some inventory websites combine the model and revision into search terms such as IS220PAICH1AC, IS220PAICH1AD, IS220PAICH1AE, or IS220PAICH1AF. These should not replace verification of the actual GE nameplate. Related In-Stock and Quotation Models Category Model Reported Market Status Application Note Same Base Model IS220PAICH1A Rev C Listed in independent Mark VIe inventory directories Preferred for installed Rev C systems when an exact-revision spare is available. Same Base Model IS220PAICH1A Rev D Listed in independent Mark VIe inventory directories Cross-revision replacement requires system and firmware verification. Same Base Model IS220PAICH1A Rev E Reported as in stock by independent suppliers Confirm that the available physical unit is specifically Rev E. Same Base Model IS220PAICH1A Rev F Revision listed; current quantity generally requires quotation Require an original nameplate photograph before purchase. Compatible Terminal Board IS200TBAIH1C Available through multiple industrial spare-parts suppliers GE system documentation identifies TBAIH1C as compatible with PAIC and suitable for Simplex or TMR applications. Compatible Terminal Board IS200STAIH1A / IS200STAIH2A Quotation availability varies Listed by GE hazardous-location documentation as accessories for IS220PAICH1A. Related Function IS220PAICH2A Several revisions appear in independent inventory directories Includes additional hardware for a 0–200 mA first output. It is not an automatic substitute for PAICH1A. Later Product Family IS220PAICH1B Available from independent suppliers Different complete part number. Replacement requires system, certification, firmware, and engineering approval. Inventory status changes frequently. Always request a dated quotation, current photographs of the physical unit, its serial number, condition, test report, warranty, and return terms. Recommended Purchase-Order Description GE Mark VIe Analog Input/Output Pack, P/N IS220PAICH1A, required assembly REV [C/D/E/F], condition [new and unused; verified before order acceptance], including clear nameplate photographs, serial number, functional test report, warranty, and return rights. No substitute or revision change without written approval. Official Manuals and Reliable Sources GEH-6721G — Mark VIe Control System Guide, Volume II GEH-6725R — Mark VIe and Mark VIeS Hazardous-Location Equipment GE Official ATEX Type Examination Certificate GE Vernova Controls Lifecare Services AX Control — IS220PAICH1A Product and Inventory Reference World of Controls — Mark VIe Revision Inventory Directory .diy_news_theme_2 ul { margin: 0 !important; padding: 0; } .diy_news_theme_2 ul li { list-style-type: none !important; } .diy_news_theme_2 .text-content { color: #465D62; line-height: 24px; } /* Three action buttons */ .diy_news_theme_2 .btn1 { display: inline-flex !important; align-items: center; justify-content: center; min-width: 180px; min-height: 46px; padding: 8px 22px; margin: 24px auto 0; box-sizing: border-box; color: #002E3E !important; font-weight: bold; line-height: 1.2; text-align: center !important; text-decoration: underline; vertical-align: middle; } .diy_news_theme_2 .theme2_section1 .theme2_section1_top { text-align: center; 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Why Keep a Spare ICS Triplex T8480 Module Industrial facilities rely on uninterrupted safety and control systems to protect personnel, equipment, and production. Within the ICS Triplex Trusted TMR architecture, the T8480 Analog Input Module is a critical component for reliable signal processing and fault-tolerant operation. Used in emergency shutdown (ESD) and process control applications, this SIL 3-certified module supports continuous and dependable plant performance. Keeping a backup ICS Triplex T8480 module on site enables maintenance teams to replace failed hardware immediately instead of waiting for lengthy procurement. This approach reduces repair time, minimizes production losses, and improves system availability in industries such as oil and gas, power generation, chemical processing, and manufacturing. Learn More Get Repairs Avoid Long Lead Times During Emergency Repairs Many industrial automation components remain in active service for years after the original equipment manufacturer (OEM) has slowed production or declared End-of-Life (EOL). As global demand increases for legacy TMR system components, technical procurement becomes exceptionally difficult, especially during unpredicted emergency shutdowns. A ready-to-install, hot-swappable ICS Triplex T8480 module allows instrumentation personnel to restore the redundant input channels quickly, bypassing the extended, costly downtime typically caused by supply chain bottlenecks and obsolete parts availability. Reduce Maintenance Risks and Improve Operational Readiness Unexpected hardware degradations often occur without warning due to thermal stress or environmental aging. Maintaining a fully tested, functional ICS Triplex T8480 module alongside corresponding Field Termination Assemblies (FTAs) enables seamless planned replacements during scheduled maintenance windows or immediate hot-swapping after a fault diagnostic is triggered. This proactive strategy significantly lowers operational risk profiles while giving engineering teams greater flexibility in managing aging plant assets and executing preventive maintenance intervals. Selecting Reliable Spare Parts for Long-Term System Support Choosing genuine, new and unused ICS Triplex T8480 modules from trusted suppliers helps ensure compatibility, reliable performance, and consistent operation. Reputable suppliers perform functional testing and quality inspections before delivery, providing greater confidence when replacing critical automation components. For plants operating ICS Triplex Trusted TMR systems, maintaining a strategic spare parts inventory is an effective way to improve reliability and reduce the impact of unexpected equipment failures. Keeping a backup ICS Triplex T8480 module helps shorten recovery time, support continuous production, and maximize long-term system availability. About Us More Product Build a Preventive Spare Parts Inventory Rather than purchasing replacement modules reactively after a catastrophic loop failure occurs, leading industrial operators develop preventive inventories based on equipment criticality and lifecycle risk assessments. Integrating the ICS Triplex T8480 module into your preventive warehouse stocks guarantees a faster engineering response, optimizes high-availability metrics, and drastically lowers the overall lifecycle cost of your mission-critical safety frameworks. FAQ What does the ICS Triplex T8480 Analog Input Module do? The ICS Triplex T8480 Analog Input Module processes analog input signals within the Trusted TMR safety system, supporting high-integrity monitoring and reliable operation for critical industrial applications. Why should a spare ICS Triplex T8480 module be kept on site? Keeping a spare ICS Triplex T8480 module allows maintenance teams to replace faulty hardware immediately, reducing repair time and helping maintain continuous plant operation during unexpected failures. How can the ICS Triplex T8480 module reduce plant downtime? The ICS Triplex T8480 module enables fast replacement of failed components, allowing the control system to return to normal operation more quickly and minimizing production interruptions. Can a new ICS Triplex T8480 module be installed in an existing system? Yes. A genuine, new and unused ICS Triplex T8480 module that has been checked for compatibility and inspected before shipment can provide a reliable replacement for a legacy Trusted TMR system. Where is the ICS Triplex T8480 Analog Input Module commonly used? The ICS Triplex T8480 Analog Input Module is widely used in safety-critical applications across oil and gas, power generation, chemical processing, petrochemical, and other industrial facilities that require high system availability and fault tolerance. Copyright Notice © 2026 apter.com All rights reserved,Apter Power is not an authorized distributor or representative of the manufacturers featured on this website. Brand names and trademarks featured are the property of their respective owners. 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Specifications & Approvals The Bently Nevada 330180-12-05 is a 3300 XL Proximitor Sensor designed for a 1.0-meter 3300 XL 8 mm proximity transducer system. This configuration is supplied without mounting hardware and carries CSA, ATEX, and IECEx approvals. Operation & Applications Working with a compatible probe, the sensor converts the distance between the probe tip and a conductive target into a proportional voltage signal, supporting shaft vibration, axial position, Keyphasor reference, and speed measurements on rotating machinery. Find Parts Preventive Inspection Checklist Inspection & Electrical Diagnostics Routine maintenance should include inspecting the Proximitor Sensor, field wiring, probe cable, and connectors for corrosion, contamination, loose connections, physical damage, or oil ingress. Verify that the power supply remains within the specified operating range and confirm that the output signal remains stable during operation. Optimizing Sensor Performance For radial vibration applications, the recommended probe gap is approximately 1.27 mm (50 mils), corresponding to an output of about −9 VDC. Probe cables should never be sharply bent, and the minimum allowable bend radius is 25.4 mm (1 inch). Where the installation environment is exposed to moisture, dust, or contaminants, connector protectors are recommended to provide additional environmental protection. Find Parts Compact and Flexible Design. Improved Electrical Protection. Faster and More Reliable Wiring. Pre-Replacement & Safety Guidelines Before replacing a 330180-12-05 , isolate the monitoring circuit and follow the facility’s lockout/tagout and hazardous-area procedures. Record the existing wiring and output readings, then disconnect the field terminals and ClickLoc connector without twisting or pulling the cable. The replacement must match the 1.0-meter total system length and the required agency approvals. Because a one-meter system does not use an extension cable, installing a sensor calibrated for a five- or nine-meter system can cause incorrect output and measurement performance. Post-Installation & Verification After installing the replacement, reconnect the wiring, confirm grounding and shielding, and inspect the probe-to-sensor connection. Restore power and verify the probe gap voltage, monitor indication, alarm settings, and overall vibration trend before returning the machine to normal service. Correct maintenance and model matching help the Bently Nevada 330180-12-05 Proximitor Sensor maintain reliable machinery protection while reducing false alarms, unexpected shutdowns, and avoidable maintenance costs. 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} .diy_news_theme_1 .theme1_section1 .content{ background: #31CCCD; width: 100%; border-radius: 25px 0 0 25px; padding: 40px 100px 40px 40px; } } @media screen and (max-width: 767px){ .diy_news_theme_1 .theme1_section1 .content{ padding: 24px; border-radius: 25px; } .diy_news_theme_1 .theme1_section1:before{ display: none; } .diy_news_theme_1 .theme1_section1 .content h2{ line-height: 42px; font-size: 32px; } .diy_news_theme_1 .theme1_section2{ flex-direction: column-reverse; text-align: center; } .diy_news_theme_1 .theme1_section2 .content{ width: 100%; } .diy_news_theme_1 .theme1_section2 .img{ max-width: 100%; } .news-view .news-view-content .text ul{ display: block; } .diy_news_theme_1 .theme1_section4 li{ width: 100%; } .diy_news_theme_1 .theme1_section5{ display: block; } .diy_news_theme_1 .theme1_section5 .img{ max-width: 100%; } .diy_news_theme_1 .theme1_section5 .content{ width: 100%; margin: 20px 0 0; text-align: center; } .diy_news_theme_1 .theme1_section1 .content{ margin: 20px 0 0; } } Reference: https://dam.bakerhughes.com/m/23d2a1de24360b13/original/3300-XL-8mm-Proximity-Transducer-System-Datasheet-141194-pdf.pdf