LT-101A User’s Manual
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no information to be displayed;
8. After sampling for 3s, the start-up parameters will be displayed on the instrument
panel window.
5.3.3 Window display
(1) Input: Window A displays the maximum voltage value(V) during 0~40ms,
window B displays the maximum current value(A) during 0~40ms.
(2) Output: Window E displays the maximum RMS value of voltage during 0~3s,
window F displays the maximum RMS value of current during 0~3s, window H
displays the time when current getting to the maximum value.
Notes: When there is "----", it means there is nothing to be displayed.
5.4 Other operations
5.4.1 HOLD
When the instrument is under the state of "RUNNING", press "HOLD" to stop the
sampling and keep the displayed value, press "HOLD" again to release the state.
When the instrument is under the state of "HOLD", the key of "START" will be
invalid. Press "ANALYZE" or "FILTER" to release the state, otherwise all the other
keys are still invalid.
5.4.2 Current bandwidth selection
Press "FILTER" can select the frequency width of input/output current.
1. The indicator lighting means that the current frequency width is 5kHz.
2. Press "FILTER" once again, then the indictor will be off, which means that it's
under a wideband characteristic test and the frequency width of the input/output
current is changed to 1MHz.
3. Press "FILTER" once more, the indicator flickers, and it's under the ripple test, the
ripple frequency width is 5kHZ~1MHz.
4. Press the "FILTER" one more time, the instrument will be switched to the narrow
band mode.
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