Micronta 22-195A - HFE MEASUREMENT AND BAR GRAPH DISPLAY; Reading hFE and Safety; Bar Graph Functionality

4. Read the hpg on the display. The hfe is the
current gain, (the ratio of the collector current
to the base current) for the transistor, and
therefore no unit value (ohm, amp, etc.) is
displayed.
5. With no transistor connected, the last digit
may “wander” between O and 1. As soon as
a transistor is connected, normal accurate
measurements are performed.
WARNING: THE TRANSISTORS MUST BE
REMOVED FROM THE CIRCUIT BEFORE
TESTING. OTHERWISE, FIRE HAZARD MAY
RESULT.
Bar Graph
All of the measured data are also indicated
dynamically on the bar graph at the bottom of
the display. Each dot represents one unit of
the third unit from the right on the display.
You can easily observe changes in the meas-
ured data. The display also indicates the
polarity for DC functions.
Example: If 12 V is input in the 30V range,
the display will be as follows:
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