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 1.0.0-beta.1 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
Tap the output posts to connect leads. Blue means connected. Current returns through OUTPUT LO. For 4-wire Ω, connect both SENSE posts too. The simulated output appears on the DUT below.
Setpoint keypad
Example: 1 · 0 · 0 · m · V · ENTER → 100 mV. Prefix keys set the entry unit; they do not change the accepted setpoint until ENTER.
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.
Synthetic practice data only. Enter a number, an SI prefix, and a function unit, then press ENTER. The displayed auto ranges and terminal roles are based on the 5560A output envelope; the uncertainty numbers, DUT tolerances, TUR, and variation remain simplified teaching models, not manufacturer specifications or an accredited CMC. AC readings are RMS values for a sine wave; low and high frequency bands increase the simulated source uncertainty. Resistance is a synthesized output, and 4-wire operation requires separate source and DUT sense connections. The bench and handheld DUT range styles are generic teaching choices, not exact 34410A specifications. Basic quality uses a handheld face with a function dial, shared COM, and separate simulated current-input fuses for the 600 mA MAX µA/mA jack and 6 A MAX A jack. If source current exceeds the selected jack limit, or voltage is applied to either current jack, its simulated fuse opens; replacing the blown fuse(s) requires STANDBY. These are teaching limits, not real instrument specifications. Moving into 30 V or higher while operating returns the source to STANDBY; press OPERATE to activate the high voltage output and its HIGH VOLTAGE indicator. DUT overrange shows OL. On General and Precision DUTs, RES − and RES + change the display increment without changing the analog value, and start a new reading set; Basic has a single RANGE button and no resolution control. Its current setting starts at 6 A; the green SHIFT button switches to the µA/mA ranges, where RANGE cycles 6, 60, and 600 mA. The learner must move the red lead to the matching physical jack. A scenario code can still specify and lock a display resolution, including the code-only eight digit setting. Resolution changes the display increment, not accuracy. Mean answers use round-half-to-even at the DUT increment. The Type A calculation is not a complete uncertainty budget. The illustrative TUR does not establish suitability or pass/fail. The listed DUT tolerance is rounded to the selected DUT display increment, and that displayed limit is used for the teaching decision. The tolerance question uses a stated simple-acceptance teaching rule, not a real instrument conformity statement. Actual calibration needs a validated budget, traceability, and an agreed decision rule. Progress is saved for this browser tab's course session. RESET SOURCE returns to 10 V DC in STANDBY. RESET DUT returns to DC V with an appropriate 10 V range, original scenario resolution and quality, and two main leads. RESET WORK clears the current reading set and answers while keeping submitted results. MASTER RESET ALL clears the code and report. In one-submission teaching mode, each DUT function, range, and resistance wiring mode can be submitted once per course session. One-reading range checks record the displayed DUT value and tolerance decision; s and u(mean) are not estimated or graded for n = 1. The calculator can fill the answers when allowed. Replacing an existing function/range result in retry mode asks for confirmation. Free use sends no SCORM grading result; teaching codes report correctness flags through the SCORM wrapper. Web scenarios are stored on this installation. Codes retrieve immutable scenario definitions. This development preview uses browser-side simulation and feedback; it is not secured assessment. Server results are saved only after an explicit range submission. Export and import packages move scenarios between installations.
Scenario answer
Try the relevant functions and ranges first. Reveal the injected error if you need to check what this scenario contains.