®
@
®
GND:
Connects the input amplifier to common to
provide a zero reference voltage without physically
disconnecting the probe from the circuit under
test. Connects the input signal to the ac coupling
capacitor through a 10 MD resistor which provides
precharging.
DC:
All components of the input signal are passed
to the input amplifier.
INTENSITY-Controls
brightness of crt display.
FOCUS-Screwdriver adjustment to provide optimum
display definition.
VOL TS-mA/DIV
VAR-Provides continuously varia
ble uncalibrated deflection factors to at least 2.5
times the calibrated settings of the VOL TS-mA/DIV
control. The calibrated detent is at the fully clock
wise position.
@vERT
GAIN-Screwdriver adjustment to set the cali
bration of the VOL TS-mA/D IV control when the
VOLTS-mA/DIV VAR control is in the calibrated de
tent.
@
POS (Vertical Arrow
Line)-Controls the vertical
position of the oscilloscope display.
@
mA-S1-Banana jack input for current and resistance
measurements. In the
n
mode, th is jack is negative
with respect to the COMMON jack.
@
EXT
TRIG-Banana jack high impedance input for
external trigger voltage.
@
COMMON-Banana jack common return path for
current and resistance measurements, or as an alter
nate reference point or common return when using
the voltage probe. It is electrically connected to the
probe common clip.
@
TRIGGER-This
section contains the trigger mode
and level-slope controls.
EXT DC:
Selects de coupled external trigger.
INTL AC NORM:
Selects internal ac coupled
trigger signal. There is no trace when the vertical
input signal is not sufficient to cause triggering.
INTL AC AUTO:
Same as INTL AC NORM except
the sweep free runs and provides a bright reference
trace when the vertical input signal is not suffi
cient to cause triggering.
LEVEL-SLOPE:
Selects the amplitude point and
slope of the trigger signal on which the sweep is
triggered. When the control indicator dot is to the
@
213 Operators
7
Summary of Contents for 200 Series
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Page 8: ...213 DMM Oscilloscope 213 Operators ...
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