Hioki MEMORY HiCORDER 8855, Instruction Manual

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5.12 Setting the 8955 F/V UNIT
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NOTE
5 V
-5 V
0 V
Threshold value
Example
(2) Setting the measurement range
Set the value per division.
1. Use the Menu keys to display the desired screen.
2. Move the flashing cursor to the
Range
item to be
set.
3. Use the
JOG
control, the function keys or the
RANGE
knob to make the selection.
(3) Setting the threshold value
The waveform is measured for the interval that it
crosses the pulse duty ratio.
1. Use the Menu keys to display the desired screen.
2. Move the flashing cursor to the
Level
(threshold
value) item to be set.
3. Use the function keys to make the selection.
(4) Setting the pull-up resistance
Pull-up resistance is used when the 8855 is connected to an open-collector
output signal.
When ON is selected, the input terminal is pulled up by +5V. With most
measurements, this option is set to OFF.
1. Use the Menu keys to display the desired screen.
2. Move the flashing cursor to the
Pull Up
item to be set.
3. Use the function keys to make the selection.
(5) Setting the level
Select whether you want to measure duty ratio based on the HI level or the
LO level.
1. Use the Menu keys to display the desired screen.
2. Move the flashing cursor to the
Level
item to be set.
3. Use the function keys to make the selection.
Hold, pull-up ON/OFF, slope rise and drop, HI and LO level, and threshold
settings cannot be determined from the display screen. Determine the
settings for each channel or list according to its options.
When printing a list, hold, pull-up ON/OFF, slope rise and drop, HI and LO
level, and threshold settings are printed. For details, see section 10.5.
Measurement results may differ depending on the Threshold Value Setting.
To obtain correct measurement results, set the proper threshold value to
match the input waveform.
When performing quantitative measurement, the previous data may be appended
to the beginning of measured data.