Operations and Features 2
U3402A User’s and Service Guide 33
• Table 2- 1 shows the summary of range values for slow, medium, and fast
reading rate respectively.
[1]
10 A continuous DC or AC RMS; 12 A DC or AC RMS for 30 seconds maximum.
[2]
A shielded test cable is recommended when measuring resistance more than 120 k
W
to eliminate noise interference that
might be induced to the test leads.
Autoranging is not applicable for current measurement up to 12 A. You are required to
select the range manually when a signal is applied to the A terminal.
Ta b l e 2- 1 Range scale value in slow, medium, and fast reading rate
Measurement
function
Range Autoranging
Slow reading rate Medium reading rate Fast reading rate
DCV 120.000 mV, 1.20000 V,
12.0000 V, 120.000 V,
1000.00 V
400.00 mV, 4.0000 V,
40.000 V, 400.00 V,
1000.0 V
400.0 mV, 4.000 V,
40.00 V, 400.0 V, 1000 V
✔
ACV, DCV + ACV 120.000 mV, 1.20000 V,
12.0000 V, 120.000 V,
750.00 V
400.00 mV, 4.0000 V,
40.000 V, 400.00 V,
750.0 V
400.0 mV, 4.000 V,
40.00 V, 400.0 V, 750 V
✔
DCI, ACI, DCI + ACI 12.0000 mA, 120.000 mA,
1200.00 mA
40.000 mA, 120.00 mA,
1200.0 mA
40.00 mA, 120.0 mA,
1200 mA
✔
DCI, ACI, DCI + ACI
12.0000 A
[1]
12.000 A
[1]
12.00 A
[1]
Manual only
Frequency 1200.00 Hz, 12.0000 kHz,
120.000 kHz, 1.00000 MHz
1200.0 Hz, 12.000 kHz,
120.00 kHz, 1.0000 MHz
1200 Hz, 12.00 kHz,
120.0 kHz, 1.000 MHz
✔
Resistance
[2]
120.000
W
, 1.20000 k
W
,
12.0000 k
W
, 120.000 k
W
,
1.20000 M
W
, 12.0000 M
W
,
120.000 M
W
400.00
W
, 4.0000 k
W
,
40.000 k
W
, 400.00 k
W
,
4.0000 M
W
, 40.000 M
W
,
300.00 M
W
,
400.0
W
, 4.000 k
W
,
40.00 k
W
, 400.0 k
W
,
4.000 M
W
, 40.00 M
W
,
300.0 M
W
,
✔
Diode test 1.20000 V 2.5000 V 2.500 V
Fixed range
Continuity 2-wire
W
/120
W
(continuity mode)
2-wire
W
/400
W
(continuity mode)
2-wire
W
/400
W
(continuity mode)
U3402-90001.book Page 33 Friday, July 24, 2009 4:04 PM
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