54
Operation
Measuring Frequency via Current Clamp
1. First remove the measuring cables before measuring via the
current clamp!
2. Set the rotary function switch (13) to the
A
range position
respectively to the
A~
position.
3. Press the current clamp trigger (4) to open the clamp. Fully
enclose the conductor to be measured with the current clamp.
4. Press the frequency/duty switch key Hz/% (11), to switch into
frequency measuring mode.
5. Read the frequency value from the display.
Notes:
Do not enclose more than one conductor in the clamp during
measuring. Incorrect measurement values may be obtained.
Do not exceed the maximum input current of 600 A rms AC.
A frequency range of 10 Hz to 1 kHz can be displayed. If the
measured frequency is lower than 10 Hz, the display shows
“
00.0
”. It is possible to test frequencies which are higher than
1 kHz, but the accuracy of the test result cannot be ensured.
Frequency Measurements via Clamp - Accuracy
Range Resolution
Accuracy
660 Hz
0.1 Hz
1 kHz
0.001 Hz
± (1.5% of r 5 digits)
> 1 kHz
0.001 Hz
Only to be taken as reference
Measurement range: 10 – 1 kHz
Input current range:
≥
1 A rms AC (higher input current at higher
frequencies)
Max. input current: 600 A rms AC
Summary of Contents for 82 04 51
Page 1: ...Westfalia Bedienungsanleitung Nr 109889...
Page 4: ...III bersicht Overview 16...
Page 39: ...34 Notizen...
Page 69: ...64 Notes...
