Ridgid CM-100 Micro Clamp Meter - Ridgid

True RMS (Root Mean Square) measurements provide accurate readings for signals that are not perfect sine waves, such as those found in variable frequency drives or noisy power lines. This ensures you get a more realistic measurement of the actual power being delivered or consumed.

Set the dial to the appropriate AC current setting (e.g., 'A~'). Open the clamp jaws and place them around the conductor you wish to measure. Ensure the jaws are fully closed. The reading will appear on the LCD. For best accuracy, center the conductor within the jaws.

Yes, the Ridgid CM-100 can measure DC current up to 1,000A. Select the DC current setting (e.g., 'A-') on the dial and follow the same procedure as for AC current measurement.

The clamp jaws can accommodate cables with an outside diameter of up to 30mm.

The meter comes supplied with a soft carrying case, test leads, a Type K temperature probe, and a 9V battery.

The CM-100 has an overload protection rating of CAT III 600V.

The meter will automatically turn off after approximately 20 minutes of inactivity to conserve battery power. You can re-activate it by pressing the power button or turning the dial.

Ensure the 9V battery is correctly installed and has sufficient charge. Check if the battery compartment cover is securely closed.

Verify that the correct function and range are selected. Ensure test leads are properly connected for multimeter functions. For current measurements, ensure the clamp is fully closed around the conductor and the conductor is centered within the jaws.

This indicates an overload condition. The measured value exceeds the selected range. Select a higher range for current or voltage, or ensure the conductor is within the meter's measurement limits.

Check that the meter is set to the continuity function. Ensure there is a valid low-resistance path. Test the leads by touching them together; they should beep. If not, check the battery or test leads.