25
⇑(++)
This softkey is the coarse level increment softkey which is used to increase
the test signal level by a 0.01 V
rms
step.
2) Select and set the oscillator level using either the softkeys or the numeric entry
keys. When the oscillator level is entered using the numeric entry keys, the
softkey labels are changed to the available units labels (mV, V), and you can use
these softkeys to enter the units and enter the data instead of ENTER. When
ENTER is used, the numeric data is entered with V as the default unit.
4.3.1.4 Measurement Range
TH2816B has nine measurement ranges: 10Ω, 30Ω,100Ω, 300Ω, 1 kΩ, 3 kΩ, 10
kΩ, 30 kΩ, and 100 kΩ. The measurement range is selected according to the DUT's
impedance even if measurement parameter is capacitance or inductance. Table 4-2
shows the effective measuring range for each measurement range while in the
impedance mode (|Z|, R, X).
Table 4-2. Measurement Range for Each Range
RANGE MEASUREMENT RANGE
10 Ω 0 Ω to 10 Ω
30 Ω 10 Ω to 100 Ω
100 Ω 100 Ω to 316 Ω
300 Ω 316 Ω to 1 kΩ
1 kΩ 1 kΩ to 3.16 kΩ
3 kΩ 3.16 kΩ to 10 kΩ
10 kΩ 10 kΩ to 31.6 kΩ
30 kΩ 31.6 kΩ to 100 kΩ
100 kΩ More than 100 kΩ
When the measurement range is set manually, the optimum measurement range
should be selected by matching the DUT's impedance to the measurement range
shown in Table 4-2. When the measurement range is set to AUTO, the optimum
measurement range is automatically selected according to the impedance of each
DUT.
Note: The measurement range is limited by the test frequency setting, when the
oscillator level is equal to 2 V or less than 2 V. When the measurement
range and the test frequency are set under the above conditions, the test
frequency must be set first, and then the measurement range. If you set the
measurement range first and then frequency, the resulting measurement
range may not be the one you wanted to set.
Front Panel Operation for Setting the Measurement Range
Perform the following procedure to set the measurement range.
1) Move the cursor to the RANGE field using the CURSOR keys. The following
softkeys will be displayed.
↓(-)
This softkey is used to decrease the measurement range in the HOLD (fixed
range) mode.
↑(+)
This softkey is used to increase the measurement range in the HOLD (fixed
range) mode.
HOLD
This softkey is used to change the measurement range from the AUTO
mode to the HOLD mode. When the measurement range is set to the HOLD
mode, the impedance range is fixed at the current range setting, and the
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