3.5 Basic Operations
3-36 ZM2371/ZM2372
Automatic selection or hold of measurement range
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AUTO / HOLD
_
Press the
_
AUTO/HOLD
_
key, and the measurement range is switched between automatic
selection (AUTO) and hold (HOLD).
When the measurement range is held, it can be selected manually. When holding the
measurement range, select a measurement range within the recommended range if
possible, considering the variations of DUT.
For the DUT having large variations or strong nonlinearity, automatic selection may fail.
Also, in the measurement of large capacitance or inductance, the settling of signal will
take time. Several measurements may be required until correct measurement range is set
in automatic selection and the measured value becomes stable.
Manual selection of measurement range
_
SHIFT
_
+ [ RANGE ]
Press the
_
SHIFT
_
+ [RANGE] keys to display the measurement range setting menu.
Auto / Manual Current range Min. output impedance
RANGE : Manual 1k Rd : 25 - Current setting
0)DOWN 1)UP 100m to 1M 2)Rd-min Options
Selectable operations Selectable range
Auto Displayed when the measurement range is automatically selected.
Manual Displayed when the measurement range is manually selected (hold).
DOWN Switches the measurement range to a range having lower impedance by
one.
UP Switches the measurement range to a range having higher impedance by
one.
Rd-min Displays the minimum output impedance setting menu of drive signal
source.
Change the measurement range with a numeric key, one step at a time. If DOWN or UP is
operated, the measurement range is held (manual selection). Note that the measurement
range of impedance should be lowered when measuring larger capacitance C or
admittance |Y|.
Perform the EXIT operation to return to the measurement screen.
_
SHIFT
_
_
AUTO/HOLD
_
| [RANGE]
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