Operating Basics
2-12
370B User Manual
When COLLECTOR source signal is selected, deflection factor (CURRENT/
DIV) can be selected from 1 pA to 2 A in a 1–2–5 sequence. When the CON-
FIGURATION mode is the BASE COLLECTOR supply, base current is
displayed on the vertical axis. When either +LEAKAGE or –LEAKAGE mode is
selected for COLLECTOR SUPPLY POLARITY (EMITTER LED turns on),
emitter current can be measured and the vertical deflection factor is divided by
1000.
INVERT. The INVERT control horizontally and vertically inverts NON STORE or
STORE curve at graticule center, also lights INVERT LED. INVERT function
does not affect VIEW and REF curve.
Pressing the INVERT button while holding down the FAST/SHIFT button, then
pressing the INVERT button, changes the button function to ERASE, which
erases the entire non-volatile IC memory. If the INVERT button is not pressed
within a few seconds after pressing the INVERT and FAST/SHIFT buttons, the
erase operation is canceled. This alternate function is not printed below the
INVERT button.
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