Industrial Sensors & Instrumentation worked example

Instrumentation Test Time at 17% fixture setup and logging allowance: a worked example

What does the result look like when fixture setup and logging allowance reaches 17%? The full calculation is worked below with real intermediate numbers. Use this when scheduling final test on a batch of transmitters or instruments, estimating test bench utilization, or checking whether the test queue fits the available shift window.

The inputs for this scenario

  • Units in test queue: 60 units (unchanged)
  • Average test time per unit: 15 min / unit (unchanged)
  • Fixture setup and logging allowance: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base test time = units in queue x average test time per unit (converted to hours)) to the inputs above produces each figure below.
  • At this operating point the engine returns 4.68 hr for total functional test time (hours), the number this scenario is built around.
  • At this operating point the engine returns 4 hr for base test time (hours).
  • At this operating point the engine returns 17 % for setup and logging allowance.
  • At this operating point the engine returns 15 pieces / min for test throughput (units/min).

How this compares with the baseline

  • Against the tool's baseline example, where fixture setup and logging allowance sits at 15% and the headline result is 4.6 hr, this scenario comes in 1.74% above the baseline at 4.68 hr.
  • A figure at this level is achievable when fixture setup and logging allowance is genuinely sustained, not just peaked for a shift. It assumes a uniform test time per unit, so products with widely different test sequences should be modeled as separate queues.

Results at a glance

  • Total functional test time (hours): 4.68 hr (headline result)
  • Base test time (hours): 4 hr
  • Setup and logging allowance: 17 %
  • Test throughput (units/min): 15 pieces / min

Run it with your numbers

  • Every input above is editable in the live Instrumentation Test Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.