84
4.6 Measuring Duty
Duty Display
13.
Press the
button to display the duty.
Starting Measurement
14.
Open the sensor clamp and clamp it around the conductor to
be measured, position the conductor at the center of the
clamp, and start measuring.
(DC mode case)
Make sure that the direc
tion of current flow in the
conductor matches that
of the arrow on the
clamp.
SOURCE
LOAD
• The most precise measurements are obtained when the con-
ductor to be measured is centered in the clamp, to minimize
the effects of conductor proximity to the clamp. However, if the
conductor to be measured is not positioned orthogonally to the
clamp-on sensor, current measurements will be slightly
affected at higher frequencies.
• Measurement values may differ when the direction of the
clamp-on sensor is changed, but any such differences should
be within the specified accuracy.
• In AC, AC+DC, and Hz modes, the direction of current flow in
the conductor does not need to match that of the arrow on the
clamp.
Summary of Contents for 3290-10
Page 1: ...CLAMP ON AC DC HiTESTER INSTRUCTION MANUAL 3290 10...
Page 2: ......
Page 6: ...iv Contents...
Page 14: ...8 Usage Notes...
Page 42: ...36 2 5 Turning Power On and Off...
Page 54: ...48 3 6 Measuring Duty by Timer...
Page 149: ...4 5 6 7 8 9 10 11...
Page 150: ......
