64
4.4 Measuring Peak Current
Range Selection
3.
Press the
button to select the range.
Auto Zero Adjustment
(for DC and AC+DC modes)
❖
See Section 5.1 "Auto Zero Adjustment Function" (page 89)
4.
Verify that the measurement current is zero, or that the clamp-
on sensor is not clamped around a conductor.
5.
Press
SHIFT
→
(
0ADJ
) to execute auto zero adjustment.
AUTO
AUTO Ranging
When using the 9691 or 9692
: 20 A/ 200 A
When using the 9693
: 200 A/ 2000 A
L
L (Low) Range
When using the 9691 or 9692
: 20 A
When using the 9693
: 200 A
H
H (High) Range
When using the 9691 or 9692
: 200 A
When using the 9693
: 2000 A
• If the appropriate range cannot be estimated, measure using
the H range first, and then select a lower range if necessary.
• If peak values exceeds the L range when measuring with
AUTO ranging, some time is required for range switching, so a
short-duration peak may not be detected.
• See Section 6.1.1 "Current Measurement" (page 108) for max-
imum display limitations.
• Executing auto zero adjustment clears peak value data at the
same time.
• Auto zero adjustment is unnecessary in AC mode.
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: ......
