U3402-90001.book Page 37 Friday, July 24, 2009 4:04 PM
N O TE
In dual display mode, the
U3402A User's and Service Guide
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Table 2-3 Description for dual display combination
Primary Display
DCV
✔
DCV
✔
ACV
✔
[4]
DCI
✔
[4]
ACI
✔
ACV + DCV
✔
[4]
ACI + DCI
✔
[7]
Frequency
✔
[3]
Resistance
✔
Diode/Continuity
✔
[6]
dBm
[1]
The range for both primary and secondary display are corresponding to the higher range of two
displays (autoranging mode, while the range of secondary display are the same as the primary
displays (manual range mode).
[2]
The frequency measurement corresponding to the current input signals; other measurements are
corresponding to the voltage input signals.
[3]
In dual display mode, users are recommended to measure the resistance up to 1 M .
[4]
At 12 A range, manual range mode is selected by default.
[5]
Measurable with non-guaranteed accuracy.
[6]
Autoranging mode by default.
[7]
The voltage or current range of the frequency function follows the voltage or current range of the
other function.
The multimeter has an increased key response time (0.6 s to 1 s) when in dual display
mode. You may need to press the selected key until the multimeter responses.
Secondary Display
ACV
[4]
DCI
[1]
✔
[1]
✔
[1]
✔
[1]
✔
✔
✔
[1]
✔
✔
[1]
[1]
✔
[1]
✔
✔
✔
[1]
[2]
✔
✔
✔
[5]
✔
✔
[5]
✔
✔
✔
Operations and Features
[4]
[7]
ACI
Hz
✔
✔
✔
✔
✔
[1]
✔
[2]
✔
[1]
✔
[2]
✔
✔
✔
[1]
✔
[2]
[2]
✔
✔
✔
[5]
✔
[5]
✔
[5]
✔
[5]
✔
✔
2
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