60
Setting Measurement Conditions (basic settings)
When the limit function is
ON
, you may encounter a display such as the following. (Example: When constant
voltage (CV) setting)
ERR
: If the voltage or current which is applied to
the sample under test exceeds the limit value (the
current exceeding the limit value flows through
the sample even when the open-circuit voltage is
set to minimum value.)
Lower the measurement signal level so that the limit
value is not exceeded.
LMT
: When a lower signal level than the setting
is being applied to the sample due to the voltage
limit or current limit value setting
At this time, the voltage or current which exceeds
the limit value is not being applied to the sample
under test. You should change the test signal level
so that it does not exceed the limit value.
DC bias (superimposing a DC voltage on the measurement signal)(AC)
You can superimpose a DC voltage on the measurement signal during capacitor measurement.
Screen display method (For more information, see p. 24.):
(Measurement screen)
SET
key>(
SET
screen)
BASIC
tab>
DC BIAS
key
1
Touch the
ON
key.
Touch this button when using an external DC
bias unit (option).
The DC bias will be set to ON, and the bias
value will be set to 0.00 V.
2
Set the DC voltage value to superim-
pose with the
keys.
Settable range 0 V to 2.5 V
If you make a mistake, touch the
C
key and
reenter the value.
3
Touch the
EXIT
key twice.
Displays the measurement screen.
If low Z high accuracy mode (p. 56) is en
-
abled, the valid setting range will differ.
(0 V to 1.0 V)
•
The DC bias function is specifically for capacitor measurement. If it is used for resistor, inductor, and other
elements with low DC resistance, the following are likely.
•
Normal measurement is not possible.
•AUTO ranging is unable to determine a range.
•
If the parameter has been set to
Rdc
, you will not be able to enable the DC bias function.
•
When superimposing a DC voltage that falls outside the valid setting range for the DC bias function, refer
to "How to supply a DC bias voltage" (p. Appx.7).
•
When superimposing a DC voltage on a coil or the like, refer to "How to supply a DC bias current" (p. Appx.8).
•
If the total value for the measurement signal level (AC level setting value × √2 + DC bias setting value) will
become >5√2 [V], the measurement signal and DC bias value cannot be raised any higher. Reduce the
measurement signal level or DC bias value, and then configure the setting. In low Z high accuracy mode, the
measurement signal level and DC bias value can be set when the total value is in the range of √2 [V] or below.
•
The selection of ranges that can be set varies depending on whether the DC bias function is enabled or
disabled. For more information, see p. 211 of "10.6 Measurement Range and Accuracy".
Summary of Contents for IM3536
Page 20: ...16 Operating Precautions ...
Page 34: ...30 Screen Layout and Operation ...
Page 140: ...136 Testing the System Self diagnosis ...
Page 224: ...220 About Measurement Times and Measurement Speed ...
Page 240: ...236 Discarding the Instrument ...
