To Next Page

To Previous Page

Follow the steps below to measure AC currents (A ) :

• Turn on the DMM using the rotary switch (3) and select the measuring

function “A

” and the expected measuring range (40A/4A). “A”

and the AC symbol AC will appear on the display.

• The display is automatically set to zero when the current clamp is

closed.Ifthereisastrongmagneticeldthataffectsthereading,use

the relative value function (“REL”).

• Press the current clamp opening lever (10) to open the current clamp.

• Surround the conductor that you want to measure and close the cur-

rent clamp. Position the conductor in the middle of the clamps.

• The measured current is indicated on the display.

• After taking a measurement, remove the current clamp from the

measured object and switch off the DMM. Turn the rotary switch to

the “OFF” position.

Measurement of alternating currents with 400 Hz low-pass lter

(VFC)

Thecurrentclampisequippedwitha400Hzsoftwarelow-passlterthat

suppressesnoiseabove400Hz.Thelow-passltercanbeswitchedon

in the AC range if necessary.

For AC measurement with low-pass lter, proceed as follows:

• Switch on the current clamp on the rotary switch and select the desired measuring range (4 A / 40 A ).

• Pressandholdthe“SELECT”button(4)forabout2secondstoactivatethelow-passlter.3beepssoundandthe

LCD display shows “UFC” for a moment. Then, the symbol “VFC” (P) appears in the display.

• Perform the measurement as described in the section “Measurement of Alternating Currents (A

)”, steps

3 to 5.

• Todeactivatethelow-passlter,pressandholdthe“SELECT”buttonforabout2seconds.Abeepsoundsandthe

LCD display shows “End” for a moment.

VOLTCRAFT VC-337 User Manual

Questions and Answers: