Just for fun

DIT-2500, in your browser Beta

Turn the dial, press the buttons and watch the display and see what happens. Connect the leads to a virtual motor or cable, run a 10-minute PI test in seconds, then switch to the multimeter side.

DIT-2500 product page PI and DAR calculator Back to the playground
Beta, just for fun. This is a playful beta, for illustration only. It is not a training tool and not a substitute for the real instrument. The actual DIT-2500 can differ in appearance, display, button behaviour, ranges, timings and readings. Everything here is simulated, so do not use it to judge a real measurement. Always follow the instruction manual and your site safety procedure.
CIE DIT-2500 Insulation Tester DC VDC DH AUTO TEST > DAR PI DIODE CONT TIME s SELECT TEST PI/DAR TIME HOLD Insulation Test V.Sel OFF 100V 250V 500V 1000V 2500V =V ~VHz Ω OFF TrueRMS CE LINE CATIII 1000V CATIV 600V VΩ MAX 1500V COM EARTH GUARD Beta · just for fun

Drag the dial, or click a position. Press the buttons. Keys: ← → dial, T TEST, P PI/DAR, I TIME, H HOLD, B backlight.

Try a scenario

One click sets up the dial, leads and test object. Then press TEST on the instrument.

1Connect the test leads

2What are you connecting to?

3What the instrument is doing

4Simulator settings

Test speed
Sound (buzzer, clicks)
Reset everything

How the DIT-2500 works

  • Insulation side (100, 250, 500, 1000 and 2500 V): turn the dial to a test voltage, connect the leads to LINE and EARTH, and press TEST. The tester applies that DC voltage and reports the resistance, from 0.1 MΩ up to 50 GΩ depending on the voltage.
  • Why the reading climbs: when you first apply voltage, a charging and absorption current flows. It decays over minutes, so the resistance rises. A dry, healthy winding climbs steadily. A damp or dirty one stays flat. That is the idea behind the DAR and PI tests.
  • DAR and PI: DAR compares the 1-minute reading with the 15 s or 30 s reading. PI compares the 10-minute reading with the 1-minute reading. Use the speed setting to run a full 10-minute test in about ten seconds.
  • Discharge: after any insulation test the object holds a charge. The display shows the voltage decaying. Keep the leads on until it reaches zero.
  • Multimeter side: AC and DC voltage up to 1500 V (True-RMS on AC), resistance up to 60 MΩ, capacitance up to 100 mF, frequency, diode test and continuity buzzer.

This is a training simulation. The ranges, accuracy figures and test voltages come from the DIT-2500 specification. Test objects are idealised models, so real readings will differ. The exact button behaviour, display layout and timings of the physical instrument are approximated, so always follow the instruction manual and your site safety procedure. Never test live circuits.

Want the real thing on your bench?

The DIT-2500 is made and supported by CIE in Howrah, with test certificate available on request.

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