U2829 Series Operation Manual Chapter 3 Introduction to [DISP]
16
3.1.5
DC bias
U2829 provides internal DC bias voltage from -10V to +10V. When the test
function is selected as DCR, the bias zone will display “---”.
Operation steps for setting DC bias:
U2829 provides two methods to set the DC bias. The first one is to use soft keys,
while the second one is to input data by numeric keys.
1)
Move the cursor to DC BIAS, the following soft keys will be displayed.
↑
(+)
This soft key is used to increase the output level of DC bias.
↓
(-)
This soft keys is used to decrease the output level of DC bias.
2)
Soft or numeric keys can be used to select or set the DC bias source. When
numeric soft keys are used to input the desired bias level, the available units
((mV, V, µA, mA and A) will be displayed in the soft key zone. Users can use
these soft keys to input unit or data. When [ENTER] is used to terminate the
input of bias value, the default unit is V or A.
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NOTE: When you need to switch the DC bias level between current and
voltage, numeric keys and unit soft keys must be used.
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Press the [DC BIAS] key on the front panel to allow the output of DC bias. When
DC bias is permitted to output, the [DC BIAS] key will be lighted.
3.1.6
Test speed
The test speed of U2829 is determined by the following factors:
Integration time (A/D conversion)
Average times (average test times per each test)
Measurement delay (from startup to the start of measurement)
Display time of test results
You can select test mode as FAST, MED or SLOW. Generally, the test result is more
stable and accurate in SLOW test mode.
Operation steps for setting test speed:
1)
Move the cursor to SPEED, the following soft keys will be displayed:
FAST
MED
SLOW
HIGH
2)
Use above soft keys to set the test speed.