Multifunction calibrator practice
Set the source and DUT, then press OPERATE to collect readings. Load a shared scenario code for an assigned exercise, or use the generic DUT for open practice.
Training simulation: Completing this activity does not grant task qualification, certification, or authorization to operate or calibrate real equipment. Follow your organization's procedures, training, and authorization requirements for actual calibration work.
Simulation setup · scenario code
Generic DUT settings
Enter a Web 1.0.6-beta B3 code to load source and DUT settings, including an optional hidden error and locked resolution or quality. Eight digit resolution is available through codes. Each new reading set varies.
Design a DUT and generate a code
The code includes the current source setpoint, function, unit, frequency, lead positions, DUT function, range style, starting range, and reading count. Change those controls on the panels before generating. You can override resolution and simulated quality here, and lock either one.
The added error is a teaching device. It does not establish conformity under a specified decision rule. Keep the source setpoint within the chosen DUT range when testing it.
Source output terminals
Help
Tap the output posts to connect leads. Blue means connected. Current returns through OUTPUT LO. For 4-wire Ω, connect both SENSE posts too.
Enter digits, select a prefix if needed, then ENTER. For example: 100 → m → ENTER gives 100 mV. The V, A, or Ω key clears the prefix while keeping the numeric entry. Changes take effect only on ENTER.
RESET SOURCE returns to 10 V DC in STANDBY.
Setpoint keypad
Something needs attention. Double-check the source outputs, DUT input jacks, functions, range, and setpoint. Press the button if you need a hint.
Device under test · Multimeter
Tap a setting or the knob to change function.
Both current-input fuses intact
Blue posts have leads connected. Select INPUT HI or I for the main high lead, INPUT LO for the return, and both SENSE posts for 4-wire Ω. RANGE + and RANGE − change the displayed range while keeping the live measurement.
Display resolution is locked by the loaded DUT scenario code.
Simulated quality is locked by the loaded DUT scenario code.
Quality changes short-term reading variation and the synthetic DUT tolerance used in the illustrative TUR. Low variation resembles a stable, longer-integration reading; these are not specifications for a particular multimeter or NPLC setting.
Document the results
With a valid setup, OPERATE keeps the source on and shows a live DUT value. Record the displayed reading to advance it, or simulate the remaining readings. Press STANDBY when finished.
- Put the output in OPERATE to begin.
Does this result pass the selected DUT tolerance listed above?
Teaching decision rule: compare |unrounded mean of the displayed DUT readings − source setpoint| with the tolerance displayed above, rounded to one DUT display increment. Equal to the limit passes. This is simple acceptance without a guard band; measurement uncertainty is not used to narrow the acceptance limits.
Calculate the results
Rounding for your answers: Calculate with unrounded intermediate values. Enter the mean to the nearest DUT display increment; if it is exactly halfway, round so the last retained digit is even. Enter s and u(mean) to two significant digits in the units shown. Calculate u(mean) from unrounded s, then round it separately. More precise s and u(mean) answers are accepted if they round to the same two-digit values.
Repeatability and Type A uncertainty
Complete the selected reading set, then calculate the sample standard deviation and standard uncertainty of its mean. Free use checks each submitted answer immediately; teaching codes hold correctness feedback until you submit the range.
Calculation help is disabled by this teaching code.
Results report
Submitted results remain here as you reset work and move to another range. Save one text report or print all submitted range results, including your entered answers and whether each was correct.
You can add or correct the learner name after submitting ranges. It applies to every result in this report and, when provided, appears in the saved file name.
No submitted range results yet.
Help and technical reference
Using the bench
Enter a value and unit, press ENTER, select leads and matching functions, then OPERATE. Pin either readout to keep it visible while documenting results. Record each completed conversion, or use accelerated collection. STANDBY stops output.
Reports and resets
Submit adds a range to this report. Save to server is optional and requires a loaded scenario. Save as text and Print work in free use too. RESET WORK keeps submitted results; MASTER RESET clears the current report. Download before refreshing.
Measurement model
The generic Basic handheld allows 5% display headroom beyond the nominal range with the same display increment. This is a teaching choice, not a Fluke specification. Current-input fuse limits remain 600 mA and 6 A.
Training specifications are simulated. DC and resistance timing uses 34410A-style NPLC choices; precision adds aperture choices through 8 s inspired by the 8588A. Noise coefficients, display resolution and range tables are teaching models, not manufacturer specifications. AC uses a separate RMS averaging period. Longer integration reduces random noise, not fixed error. The display update period has a 100 ms presentation floor.
Advanced budgets describe indication error at the current point. Reference U has k = 2. Repeatability and resolution use the larger standard uncertainty as a conservative resolution floor, avoiding automatic addition of overlapping quantization. Optional scenario bounds are rectangular and additional to the supplied reference contribution. Sensitivity coefficients have magnitude one in base units; inputs are assumed independent. The reported coverage factor is stated explicitly; k = 2 is not automatically 95% coverage.
Acceptance remains the stated simple-acceptance rule. Expanded uncertainty is reported separately. Resolution is not accuracy; Type A alone is not a full budget.
Scenario answer
Try the relevant functions and ranges first. Reveal the injected error if you need to check what this scenario contains.