A water tank is ranged from 0 to 5 m and its level transmitter produces 16 mA during a controlled fill. This page owns that exact calculation job and opens the matching server-graded case rather than a generic calculator.
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The lower range value is 0 and the upper range value is 5 m. The engineering span is the difference between those values; it is not automatically zero-based.
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Open the registered Hydrostatic level transmitter case so the grader—not the browser copy—owns the expected result.
Open the exerciseSubtract the 4 mA live zero from 16 mA, then divide by the 16 mA measurement span. Keep enough precision until the engineering conversion is complete.
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Calculate the fraction separately before typing the final engineering value into the lab.
Open the exerciseMultiply percent span by the configured engineering span, then add 0 m. The registered expected result is 3.75 m within ±0.01 m.
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Submit the value and inspect the range, live-zero and tolerance checks returned by the server.
Open the exerciseA calculation mismatch can come from signal measurement, transmitter configuration, PLC card range, program scaling or unit conversion. Preserve the measured current, range, result and timestamp before changing any layer.
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Create an account to retain the attempt, then use a paid workspace to compare cases, keep full history and assign the exercise.
Open the exerciseCore concepts
The simulator creates a repeatable result; these concepts make that result transferable to real vendor software and supervised practical work.
Four milliamps represents the lower engineering value, leaving near-zero current available as fault evidence.
For this Hydrostatic level transmitter, the span is 5 m.
The case records the input, expected value, units and ±0.01 m acceptance statement instead of returning an unexplained number.
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Run the foundation exercise publicly, then use a subscription for advanced challenges, saved configurations, full attempt history, sharing, assigned paths and team reporting.
Related learning surfaces
Competency and practice field guide
Direct answer
The learner can document the raw and engineering endpoints, calculate slope and offset, test at least five points and distinguish scaling error from loop or transmitter failure.
Written for instrumentation trainees proving a bounded level conversion with known input points, units, quality and error detection.
0 and 5 metre endpoints, raw counts or loop current, live-zero behavior, data type, units, resolution, clamping, quality and calibration references.
Known level or current through transmitter, loop, input module, raw tag, conversion expression, engineering tag and independent reference.
Endpoint, midpoint and intermediate values remain within the declared tolerance with the correct metre unit and monotonic direction.
3.8 mA underrange, 20.5 mA overrange, open loop, reversed endpoints, integer truncation, negative input, noise, stale value and module replacement.
A reference, transmitter, wiring, module, raw-value, data-type, endpoint, calculation, quality or display mismatch.
The conversion checked against current transmitter and module data with an approved calibration method.
Map the documented raw lower and upper endpoints to 0 and 5 metres with a linear equation, retain adequate numeric precision and verify several independent known points.
For a conventional 4–20 mA linear range it represents the configured lower-range value, but verify the actual transmitter configuration and loop condition.