DaqExpert on site: a laptop running the DaqExpert workspace next to a DX acquisition unit, in front of a turbine-generator

Advanced diagnostics for rotating machines

Software built forcommissioning,plant operations andmachine diagnostics.

Automated testing, data analysis, remote live monitoring and reporting— supported by field-ready acquisition hardware.

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MULTI-DOMAIN
MEASUREMENTS
Electrical · Mechanical
Magnetic · Thermal
◎
SYNCHRONIZED
ACQUISITION
One timeline
All signals
▤
AUTOMATED
DIAGNOSTICS
From data to
engineering decisions
  • One platform
  • All measurements
  • Automated tests
  • Clear reports
⚙

MECHANICAL

Vibration · Speed · Phase · Temperature

ϟ

ELECTRICAL

Voltage · Current · Power · Harmonics

◒

MAGNETIC

Air gap · Flux · Rotor/Stator behavior

Synchronized on one timeline.

DaqExpert System Suite

The software at the heart
of every measurement.

Acquire on site. Automate your tests. Review data with your engineering team. Send results directly to the report — in one connected workflow.

Book a software demonstration →
DaqExpert software with automated testing tools, time signals, FFT, trends and orbit analysis
DaqExpert SoftwareAcquisition, automated testing and diagnostic analysis in one workspace.
01

Data Acquisition

Acquire electrical, mechanical and magnetic measurements and run automated test tools on site.

02

Data Analysis

Review and process recorded data, including files sent by a technician working at the plant.

03

Data Reporting

Send test and analysis results directly to the report, reducing manual transfer between steps.

Who it's for

Built around the people
working on the machine.

Commissioning Teams

For commissioning teams at turbine-generator manufacturers: automate testing, collaborate with engineers and bring results directly into the report.

Explore commissioning →

Plant Owners & Operators

Power Generation Maintenance Manager provides a dedicated module for the maintenance needs of power generation teams.

Explore the maintenance module →

Diagnostic Professionals

Use DaqExpert for your measurement and diagnostic campaigns, with hardware available for purchase or rental.

Explore purchase & rental →

Remote Live Monitoring

Your specialist,
on every job site at once.

A campaign should not wait for the one person able to judge the measurement. Send the technician who is available; the specialist follows the signals as they are recorded and confirms the result — from the office, from another site, from another country. One specialist can cover several crews in the same week instead of travelling to each one.

The decision moves back to where the machine still is. The specialist reads the live signals, judges the setup and says what to change while the unit is still instrumented and the crew is still standing in front of it.

The owner of the machine is not left waiting for the report. Your own engineers follow the same signals from the control room, at the same moment, and watch the test happen rather than read about it afterwards.

Explore Remote Live Monitoring ↗
DaqExpert Remote Live Monitoring - the live dashboard of a site: time, trend, orbit, FFT, alarm monitor and trend table
Remote Live MonitoringThe live dashboard of a site, as the specialist sees it from anywhere: time waveforms, trends, orbit, FFT, alarm monitor and statistics — six charts per panel, updated as the signals are recorded.
01

The schedule follows the machine

An outage window is booked months ahead; your specialist’s calendar is not. Send whoever is available and let the expertise verify the measurement live, so the campaign runs when the unit is ready rather than when the right person can travel.

02

The second trip is the expensive one

A measurement found wrong after the report means a new outage window, a new mobilization and a unit taken out of service again. Catching it while the machine is still instrumented costs a phone call.

03

The owner watches it live

The machine owner follows the same signals from the plant control room while the test is running — the same screen, the same moment as the specialist. The measurement is seen as it happens, not discovered in a report weeks later.

04

Access is granted from the field

The session opens when the technician authorizes it, and only then. Access is granted from the machine doing the acquisition, not from outside — nothing stands open waiting for a connection into your plant.

For commissioning teams at turbine-generator manufacturers

From the test procedure
to the engineering report.

Automated testing tools bring test execution and analysis together. Results can be sent directly to the report, while recorded data remains available for engineering review.

DaqExpert Bearing Run automated test showing vibration signals, fitted 1X components, phase and Send to Report

Tools built around commissioning tests.

Bearing runs, load rejection, TIF & THD, open-circuit and short-circuit saturation, heat runs and generator efficiency are among the test workflows shown in the software.

  • Automated tests and analysisBring measurements and calculations into a guided test workflow.
  • Results sent to the reportCarry test and analysis results directly into your reporting workflow.
  • Engineering review away from the siteUse Data Analysis to review and process the technician’s recorded data.
  • Live visibility with permissionConnect through the Remote Live Monitoring module when the technician authorizes access.

Automated testing tools · TIF & THD

Calculated results.
Ready for the report.

The TIF & THD tool brings calculated harmonic results and a structured test report into the same workflow, with a direct Send to report action.

Example software output shown for illustration.

DaqExpert TIF and THD calculator with voltage harmonic test report and Send to report action
01 · INSTALLConnect field hardware
02 · TESTRun automated test tools
03 · ANALYZEReview live or recorded data
04 · REPORTSend results to the report

For plant owners & operators

Power Generation
Maintenance Manager.

A dedicated DaqExpert module for power generation maintenance teams. Bring the software platform into your plant’s maintenance workflow.

Discuss your units, your diagnostic practices and your maintenance needs with a DaqExpert engineer to see how the module fits your operation.

Request a maintenance demo →
Dedicated software module

Power Generation
Maintenance Manager

For the teams responsible for maintaining generating units.

Discuss your plant →

Services

Own it, rent it, or make it your own.

Purchase

Buy the DaqExpert software together with the DX-8 and DX-4 acquisition hardware — as a complete package or each on its own, depending on what your measurements require. Every purchase includes onboarding and training for your team.

Discuss a purchase →

Rental

Only need the equipment for one campaign? Rent it by the week or by the month, scaled to the length and scope of the job.

Request a rental quote →

Custom automation tools

We also build tools tailored to your workflows — automating analysis, reporting or any step specific to your machines and procedures.

Talk to us →

Remote support

When a problem comes up in the field — whether you bought or rented — we back your team up with remote support to keep the campaign moving.

Ask about support →

Field-ready DX-8 & DX-4 hardware

Less wiring. Faster setup.
Fewer installation errors.

Compact acquisition units with pre-made connectors and cables simplify installation on site. For M12 sensor cable assemblies, extend a run by connecting a male connector to a female connector — without screwdriver terminations at those connections.

Pre-made connections

Reduce manual wiring work with ready-to-connect cable assemblies.

Extend M12 runs

Connect male and female ends to add cable length without splicing.

Reduce wiring errors

Spend less time terminating cables and more time preparing reliable measurements.

Explore DX-8 & DX-4 →

DX-8

Rotating Machine
Diagnostic System

8 sensor trunks (M12) + 8 direct BNC inputs for versatile and high-fidelity measurements.

  • Vibration and dynamic analysis
  • Air gap and magnetic flux
  • Speed, phase and temperature
  • Built for field and industrial use
Explore DX-8 →
DX-8 front viewDX-8 rear panel with fused AC power inlet and power switch

DX-4

Electrical Power &
Waveform Diagnostic System

Measure voltage and current to analyze power, waveforms and electrical faults.

  • 3-phase voltage (Va, Vb, Vc, Vn)
  • 3-phase current (Ia, Ib, Ic)
  • 8 analog inputs (AI0…AI7)
  • Power and waveform analysis
  • Fault identification
Explore DX-4 →
DX-4 front viewDX-4 rear panel with AC power inlet, voltage, current and analog connectors

DaqExpert Software

Acquire. Analyze. Diagnose. Report.

DaqExpert Remote Live Monitoring interface
  • Synchronized multi-domain acquisition
  • Guided test procedures
  • Advanced diagnostic analysis
  • Professional engineering reports
Explore Software →

Mechanical & magnetic diagnostics

DX-8. A clearer picture
of your machine.

Bring vibration, air gap, magnetic flux, speed and temperature into one diagnostic workflow. Reusable sensor trunks simplify installation from the turbine pit to the generator.

Connections & enclosure
Sensor trunks
8 × M12
Direct inputs
8 × BNC
Network
2 × Ethernet
AC input
120 V AC · 50/60 Hz
Enclosure
Brushed aluminum · protective corners
DX-8 front view
DX-4 front view

Electrical power & waveform diagnostics

DX-4. Understand
electrical behavior.

Measure three-phase voltages and currents, examine waveforms and harmonics, and turn electrical measurements into useful diagnostic information.

Connections & enclosure
Voltage inputs
Va · Vb · Vc · Vn
Current inputs
Ia · Ib · Ic — BNC
Analog inputs
AI0–AI7 — 8 × BNC
Network
1 × Ethernet
AC input
100–250 V AC · 50/60 Hz
Outer dimensions
258 × 208 × 144.5 mm
Frequently asked questionsEverything you need to know before getting started.29 questions

Getting Started

Who is DaqExpert built for?

Three groups, with the same software underneath. Commissioning teams at turbine-generator manufacturers use the automated test tools and send results straight to the report. Plant owners and operators use the Power Generation Maintenance Manager module inside their plant’s maintenance workflow. Diagnostic professionals use the acquisition and analysis tools for measurement campaigns, with hardware bought or rented per job.

How long does it take to get up and running?

With a DX-8 or DX-4, connect the sensor trunks, plug in power and Ethernet, open the project and start acquiring. With your own NI hardware, count a few hours — install DaqExpert, point it at the task already configured in NI MAX, start acquisition and verify the signals. There is no integration project and no server to stand up. Updates afterwards are checked at startup and installed in the background.

Do I need a vibration analysis specialist to use it?

No. The automated test tools walk through the measurement sequence and compute the results, and the ISO 10816 / 20816 thresholds are pre-configured so a reading is placed in its normative zone without manual lookup. A technician who knows the machine can run a campaign after a few hours of guided onboarding. Support is included from the first day, and an engineer can review the recorded data afterwards.

DX-8 & DX-4 Hardware

What is the difference between the DX-8 and the DX-4, and which one do I need?

The DX-8 covers mechanical and magnetic measurements — vibration, air gap, magnetic flux, speed, phase and temperature — through 8 × M12 sensor trunks and 8 × BNC direct inputs, with 2 × Ethernet and a 120 V AC inlet. The DX-4 covers electrical measurements — three-phase voltage (Va, Vb, Vc, Vn), three-phase current (Ia, Ib, Ic) and 8 analog inputs (AI0–AI7) on BNC — with 1 × Ethernet, a 100–250 V AC inlet and an outer size of 258 × 208 × 144.5 mm. Choose by the domain your campaign measures; if the answer is both, the two units are meant to be used together.

Can I use a DX-8 and a DX-4 on the same machine at the same time?

Yes, and that is the usual configuration for a full commissioning campaign. DaqExpert brings both units into one project, so electrical, mechanical and magnetic signals are reviewed on one timeline instead of in separate files. A load rejection or a heat run is far easier to read when the electrical record and the vibration record share the same time base.

How does the field cabling reduce installation time, and can I extend a sensor run?

The connectors and cable assemblies are pre-made, so there is no screwdriver termination at those connections — which is where most wiring errors and most of the lost time occur. M12 runs extend by connecting a male end to a female end, with no splicing and no new terminations. The practical effect is that more of the setup window goes into preparing a reliable measurement rather than into building cables.

Sensors & Compatibility

Which sensors can I connect?

Standard IEPE / ICP accelerometers work without modification — on NI acquisition the IEPE excitation is supplied by the NI module itself, so there is no external conditioner to add and no proprietary sensor to buy. Displacement sensors work as well, including the eddy-current proximity probes used for shaft vibration, provided the output is analog and within the input range (typically 0–10 V or ±10 V). DaqExpert pairs X and Y channels for orbit plots and SMax. Air gap, magnetic flux, speed, phase and temperature channels are handled on the DX-8 in the same project.

Can I use my own NI-DAQmx hardware instead of a DX unit?

Yes. NI-DAQmx is a supported acquisition source, and any device recognized in NI MAX can be used — USB-6000 series, USB-6210/6211, cDAQ chassis and C Series modules, PXI. DaqExpert reads the task you already configured in NI MAX rather than asking you to describe the hardware a second time. Recorded files are the other source: TDMS Replay plays a recording back as if it were a card, so the live screens work with no hardware present.

How many channels can I acquire at once, and at what sample rate?

The DX-8 presents 8 M12 sensor trunks plus 8 direct BNC inputs; the DX-4 presents three-phase voltage and current plus 8 analog inputs. Beyond that, channel count is a hardware question: with your own NI equipment a cDAQ-9178 carrying eight 4-channel modules gives 32 channels, and multi-device setups go past a single chassis. On the software side the task sample rate is accepted up to 200 kHz, and frequency-measurement channels up to 100 kHz. Live charts are not a constraint on channel count — the refresh cadence adapts instead of dropping data.

Is three-phase power metering over Modbus supported?

Yes. A Modbus TCP interface reads a WattsOn-Mark II meter and exposes its values as channels beside the sampled signals: total and per-phase active, reactive and apparent power, L-N and L-L voltages, per-phase currents, power factor, system frequency and average phase angle. PT and CT ratios are configurable, so readings are scaled to the primary side of your transformers. Voltage harmonics and THD do not come from the meter — they are computed from the sampled waveform in the TIF & THD tool.

Software & Workflow

What does DaqExpert need to run?

A 64-bit Windows 10 or Windows 11 machine, the NI-DAQmx runtime for NI acquisition, and a DirectX 11-capable GPU for the chart engine. It installs per user, under your own local application data, so no administrator rights are required — which matters on a laptop you take to a job site. Virtual machines are not recommended for high-rate acquisition.

Can I manage several machines in one installation, and does it remember my setup?

Yes to both. Each project isolates its own configuration — acquisition task, channel list, calculated channels such as keyphasor, SMax and power, filters, panel layout and report templates — and switching projects takes a few seconds, so one laptop can cover several units. The layout is persisted per project, including panel positions and sizes, chart types, Y-axis ranges, filters and selected channels. Reopening the software puts you back on the screen you left.

Which languages is the software available in?

The acquisition and analysis applications are available in English, French, German and Spanish, selectable in the application settings. The reporting module is English only.

Commissioning & Automated Testing

Which automated test tools are included?

Nine: Bearing Run, WG Operation, Load Rejection, TIF & THD, OC Saturation, SC Saturation, Heat Run, Generator Efficiency and Acoustic Mapping. Each one guides the measurement, computes the result and produces a structured test output with a direct send-to-report action, so the calculation and the record of it are not two separate exercises. They are licensed individually, so a team that only runs heat runs and bearing runs does not pay for the rest.

Which standards do the calculations follow?

IEEE 115 for synchronous machine testing, IEC 60034-1 and IEC 60034-9 for rating and noise, and ISO 10816 / 20816 for vibration evaluation zones. The reason for implementing them is that the number in the report stays traceable to a defined method instead of to a spreadsheet nobody can audit. If a specific clause matters to your acceptance procedure, ask and we will show you how it is computed.

Can an engineer review the data while the technician is still on site?

Yes, two ways. The technician’s recording can be opened in Data Analysis by an engineer anywhere, which is how a commissioning team separates field work from engineering review. For live visibility, the Remote Live Monitoring module connects to the running session when the technician authorizes access — access is granted from the machine doing the acquisition, not from outside.

Analysis & Reporting

Which analyses and chart types are available today?

Live multi-channel time charts, trend charts and trend dashboards, FFT, XY orbit, time history and a data table, plus statistics on recorded data. Calculated channels — keyphasor, SMax, RMS, power quantities — are derived from the measured channels and behave like any other channel in those views. Campbell diagrams, envelope analysis, spectrogram and order tracking are in development and are not part of the shipped release.

Can I analyze recorded TDMS files without hardware connected?

Yes. Data Analysis opens previously recorded TDMS files and provides the offline views — trend, time history, FFT, orbit, data table, statistics — with no acquisition hardware present, which is what makes office review and post-incident investigation practical. A multi-gigabyte recording opens in about ten seconds. Inside the acquisition application, TDMS Replay goes further and plays a recording back as if it were a live card, which is useful to rehearse a test or to show a result on the live screens.

With millions of samples recorded, am I still looking at the real signal on screen?

Yes, and the reduction is deliberate rather than incidental. The engine reduces the visible window to 15,000 points before drawing: LTTB below 5 kHz, where the shape of the curve is what matters, and peak-preserving MinMax above it, because in vibration a missed peak is a measurement error, not a cosmetic one. The chart engine then re-resamples in MinMax at every zoom level, and zooming in always goes back to the stored samples. Refresh cadence is adaptive — the drawing budget is measured and the rate moves between 60 and 1 frame per second depending on how many charts are open — so adding charts costs frame rate, never samples.

How does the AI anomaly detection work on hydro units?

It analyzes the vibration channels as the calculation windows complete and compares the result against the applicable ISO 10816 / 20816 zones (A = normal, B = acceptable, C = monitor, D = critical). The evaluation accounts for turbine type (Francis, Kaplan, Pelton, Propeller), runner blade count, guide vane count, nominal speed and mounting configuration, so the threshold applied is the one that fits the unit rather than a generic limit. When a reading leaves its expected zone, a plain-language alert describes what was detected and on which channel.

How do I produce a report once the measurements are done?

Every chart and every test tool has a send-to-report action that captures the result and places it in the active report. The editor provides blocks for the cover page, free text, statistics tables, pass/fail checklists and signature lines. The finished document exports to Word (.docx) for final editing, exports to PDF, or prints directly.

Purchase, Rental & Support

Can I rent the equipment instead of buying it?

Yes — DX-8 and DX-4 hardware is available for purchase or rental. Renting suits a one-off campaign, a commissioning schedule that overlaps with another job, or a trial before committing to a purchase. Send us the dates and the measurements your campaign requires and we will quote it, equipment and licence together.

Do you provide training and support?

Support is included from the first day with any licence. Onboarding is normally a guided session of a few hours on your own machine and your own test procedure, which is more useful than generic training. Field support during a commissioning campaign can be arranged — ask when you request the quote, since availability depends on the schedule.

Licensing

Is there a free version or a trial?

Both. There is a free logger with no licence and no time limit: acquire, watch the signals live on the time and time-history charts, record natively to TDMS and export to CSV. In that mode every real channel of the task is recorded — channel selection, the advanced charts, the power meter, commissioning, Data Analysis and Data Reporting stay licensed. There is also a 30-day trial with every module unlocked and no credit card; when it ends you license what you used, or keep using the free logger.

Can I license only the features I use, and add more later?

Yes. Licensing is per feature — 63 of them, grouped into the modules shown on this site — so a team that needs heat runs and trend analysis does not pay for air gap or acoustic mapping. Added features unlock as soon as the licence file is applied, with no reinstall and no new download. Whatever you license, the free logger keeps working at no cost.

Are software updates included?

Yes. New features, fixes and performance work come at no extra cost with any licence, and the free logger stays up to date as well. DaqExpert checks for updates at startup and installs them in the background.

Is the licence per workstation or per user?

Per installation, that is per workstation: the licence unlocks the features you chose on that machine. It is not a per-seat subscription and there is no monthly per-user fee. For several machines or a whole team, multi-installation licensing is available — get in touch and we will set it up.

Data & Security

Is my acquisition data sent to your servers?

No. Acquisition data — TDMS recordings, analyses, reports — stays on your machine or your internal network. Only minimal anonymous information leaves the workstation, such as the version number used for the update check and aggregated usage counts with no identification. Those communications can be disabled entirely.

Can DaqExpert run fully offline, on-premise?

Yes. The software runs inside your network with no internet connection and nothing leaves it, which is what sensitive industrial sites require. The licence is a local file and needs no outbound call to work, so a disconnected or air-gapped installation is a supported configuration rather than a workaround. Get in touch and we will prepare it with you.

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machine is telling you?

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