Choose the test mode

Use the first selector for IJ Isolation, Pre-install Resistance, Current Leakage or CP Potential. For general joint diagnosis, start with IJ Isolation.

Start with a known condition

Use the preset buttons to establish a baseline:

• Healthy / dry — high isolation resistance and normal contacts.
• Gasket leak fault — introduces a low-resistance gasket leakage path.
• Bolt / sleeve fault — introduces a metallic bypass path around the insulation.

Use the A and B potential controls

Switch each side ON or OFF and adjust the A PIPE / GND REF and B PIPE / GND REF sliders. The displayed difference is used by the model when calculating cross-joint and ground leakage.

Change the simulated joint condition

Click around a rotary control near the condition you want for Contact A, Gasket leakage, Gasket capacitance, Contact B, Bolt / sleeve, or either ground leakage path. The orange needle moves directly to the nearest selection using the shortest clockwise or anticlockwise route. Clicking near the centre advances one position.

Use Engineering mode for physical R/C values

In Engineering Equivalent Circuit, leave Model mode on Engineering and enter component values directly. You can set source level, source resistance, receiver burden, contact resistances, gasket resistance/capacitance, bolt/sleeve resistance and A/B flange-to-ground resistance.

Compare 10 kHz and 100 kHz response

The server calculates transfer magnitude and phase at both frequencies. Compare the 10 kHz, 100 kHz and 10→100 kHz Δ values. Frequency-dependent behaviour helps separate predominantly resistive faults from capacitive coupling.

Read the diagnosis

The centre display and summary show the calculated result, fault classification, equivalent isolation, CP leakage and component condition. A warning note appears when the electrical measurements cannot uniquely distinguish two possible parallel fault paths.