3500/94M184826-01
Enlarged faceplate marking3500/94M
A model number is only one line in the replacement scope.
Model names alone do not establish whether a Bently Nevada 3500/94 can be replaced by a 3500/94M. The decision depends on the installed main module and I/O card, rack interface, firmware and software, display, connections and site requirements.
Treat the proposal as a review of the complete display arrangement. This guide supports purchasing; installation and commissioning remain subject to manufacturer instructions and approved site procedures.
Two modules.
Six visible checks.
The photographs below keep the supplied product and detail images with the correct model. Use the faceplate and printed PWA number together when recording the installed item.
3500/94145988-01
Enlarged faceplate marking3500/94
01 / IDENTITY
Separate the system name from the spare parts.
| Reference | 3500/94 | 3500/94M |
|---|---|---|
| Main module | 145988-01 | 184826-01 |
| I/O module | 147663-01 | 190214-01 normal I/O 190214-02 power-only I/O for a front-mount display |
| Minimum Rack Configuration Software | 4.8 | 5.6 |
Direct-swap verdict
The datasheets do not establish a universal direct swap between 184826-01 and 145988-01. Review the full proposed configuration for the particular rack and installation.
02 / REVIEW ROUTE
Five checks before a quotation becomes an order.
01
Module + I/O
Record both labels, complete part numbers, suffixes and revisions.
02
TDI + software
Compare the installed baseline with the 94M minimums and assign update ownership.
03
Display + touch
Identify the screen, connections, router or extender and the intended retained items.
04
Power + mechanics
Measure the cable route and confirm connectors, panel opening, brackets and clearance.
05
Approvals
Resolve certification and hazardous-location requirements for the exact components.
CHECK 01
Confirm the main module and I/O combination
Read the labels on the front module and associated I/O card. Record complete part numbers, suffixes and visible revisions with clear photographs. Compare them with the proposed bill of materials rather than a listing that says only “3500 display module.”
The two 94M I/O choices serve different arrangements. Require a line-by-line quotation and state which verified components will remain in service.
CHECK 02
Check the TDI and software baseline
The 3500/94M requires a 3500/22 Transient Data Interface. Record the installed versions before approval; familiarity with the rack does not prove that its firmware and tools meet the proposed configuration.
Listed minimums94M firmware 4.06 Rev. C · TDI firmware 1.71 · Rack Configuration 5.6 · Operator Display 2.21 · Data Acquisition 1.22
If updates are required, preserve the current configuration and include restoration and validation in the outage plan.
CHECK 03
Identify the screen and touch interface
The 94M datasheet lists Advantech 120M8155-01 and 102M8950, plus Parker 148653-01 marked no longer available. Capture the display nameplate and connections. State whether the purchase retains or replaces the screen.
Include any router or extender in the review. Acceptance must cover both the visible information and touch operation.
CHECK 04
Review power, cables and mounting
The 94M datasheet specifies standard cabling up to 6 m from the rack. Measure the routed length through the cabinet, record connector and cable identities, and document display power.
For a screen change, compare the panel opening, brackets, fixings, clearance and service access with the selected display drawings.
CHECK 05
Verify approvals for the exact installation
Rev. N excludes the 15-inch display from ATEX/IECEx certification and contains inconsistent hazardous-location statements for that display elsewhere. Obtain configuration-specific clarification before selection.
Give the reviewer the area classification, environmental conditions and component markings. Retain the applicable certificates, drawings and written decision with the change record.
03 / ENQUIRY RECORD
Define the supply before comparing prices.
State whether you need an exact spare or are evaluating an alternative. Technical acceptance stays with the responsible site engineer or system integrator.
- Complete part numbers, quantities, I/O cards and accessories.
- Readable module, I/O and display nameplate photographs.
- Display model, mounting and any router or extender.
- Rack configuration, TDI and firmware/software versions.
- Retained items, documents, destination and required delivery date.
Start with the installed labels.
FAQ
Common replacement questions
Does a 94M purchase include a new display?
Specify the deliverables. A main-module listing and a complete system order are different scopes. List the screen, I/O, power, cables and mounting separately.
What should be checked on arrival?
Compare labels and supplied items with the approved bill of materials before installation. Resolve substitutions or omissions first.
What if records are missing?
Keep the alternative under review until the equipment is identified. Share readable photographs and list unresolved items.
Is the 3500/94M a universal direct replacement for the 3500/94?
No universal direct swap is established by the official data. Confirm the main module, I/O card, TDI, software, display, cabling and approvals for the installed rack.
Which I/O module belongs with the 3500/94M?
The reviewed 3500/94M data lists 190214-01 for normal I/O and 190214-02 as a power-only option for a front-mount display. Match the proposed arrangement to the actual installation.
Which software and firmware records are needed?
Record the installed rack configuration, TDI and module firmware versions. Compare them with the applicable manufacturer document revision before planning an update or outage.
PRODUCT VIDEO
3500 display module view
This video is provided only as a visual product presentation. It does not show or verify functional testing, technical performance, compatibility or installation acceptance.
Official documents / Source record: 3500/94M VGA Display Monitor Datasheet, 122M3217 · 3500 System Datasheet, 162096 · 3500 Manuals and Datasheets, 141526. Manufacturer-hosted Baker Hughes sources checked 14 October 2026; confirm the applicable revision for the installed rack.
