Fieldpiece True RMS Head
HVACTool.net Product Description
All accessory heads work with most multimeter brands. For 0.1 resolution, use Fieldpiece DMM or DMM with 0.1mV resolution. Connect to HS20 series meter directly. Use ADL2 or AHDL1 adapter handle test leads for other meters.
Converts a digital multimeter to true RMS for AC readings. Most meters measure the "average" and then factor it for a sine wave. This means that meters using either true RMS or averaging will display the same value for normal undistorted power. Linear loads such as heaters and AC motors distort the wave form very little. If the wave form is distorted by variable speed drives or other power controlling devices, true RMS and average can be different.
Converts digital meter to true RMS meter. Cost-effective way to measure true RMS. Works with current clamps. 0-600AAC or 0-200A with current clamp.
Accuracy: 1.2% of reading + 3 digits. Ranges: 200mVAC (for current clamp), 200VAC, 600VAC. Best Resolution: 0.1 AAC with current clamp or 0.1VAC. Crest Factor: <3, <6 at half range. Auto-off to extend battery life.
