BEFORE OPERATING
INTRODUCTION
This manual provides information necessary to effectively
operate the 213 DMM Oscilloscope. Servicing instructions
are contained in a separate 213 DMM Oscilloscope Service
manual.
The 213 DMM Oscilloscope is a portable measurement
instrument that is designed to be used as either a digital
multimeter or an oscilloscope. Function selection is made
with a front-panel push button switch. Voltage measure
ments are made with the integral high-impedance probe,
while current and resistance measurements are made
through a low-impedance banana jack input on the side
panel. Operating power is provided by internal rechargeable
batteries or from power line voltage. An integral battery
charger recharges the batteries whenever the instrument is
connected to the power line.
The digital multimeter measures ac or de voltage and current,
and resistance. It features true rms responding circuitry
when making ac voltage or current measurements. Full
scale measurement ranges are 0.1 to 1000 V; 0.1 to 1000
mA; and 1 kD. to 10 MD. with a 200% full scale overrange
on all ranges except 1000 V. The crt readout is a 3½-digit
display containing an automatic polarity indicator, and a
decimal point which is positioned by the range selector
switch. Overrange is indicated by an unblanked readout
display consisting of scrambled character segments.
The oscilloscope function provides a single channel, de to 1
MHz vertical deflection system with calibrated deflection
factors of 5 mV to 100 V/division with a reduced bandwidth
of de to 400 kHz on the 5 mV and 10 mV /division ranges.
Current deflection factors are 5 µA to 100 mA/d ivision from
de to 400 kHz with a reduced bandwidth of de to 200 kHz
on the 5 µA and 10 µA/division ranges. The horizontal de
flection system provides calibrated sweep rates from 0.5 s
to 2 µs/division. A variable sweep magnifier provides unca
librated sweep rates to at least 5 times faster than the selec
ted rate. The trigger input is either internal or external and
provides stable triggering over the full bandwidth of the ver
tical deflection system. The oscilloscope crt display is a
6 x 10 division graticule with each division approximately
0.2 inches (0.5 cm).
SAFETY INFORMATION
This instrument is designed with the input common refer
ence floating above ground. Under this condtion,the
REV A FEB 1981
213 Operators
1
Summary of Contents for 200 Series
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