Operating Instructions—
DM 5010
After
the ENTER button is pressed, the DM 5010 dis
plays
the
stored constant value. The displayed value is the
new
one if the entered value was valid. The previously-
stored
value is displayed if the entered value was invalid.
Each
constant value remains stored until a new value is
entered
or until
power is removed from the instrument.
Calculation
Examples
The following examples are provided to suggest applica
tions using the DM 5010
calculations.
Example
1:
Using X-8/A to display the difference between
the nominal
and actual zener voltages.
Set the
DM 5010 front-panel
controls as follows:
Connect
the
zener diode,
resistor, and power supply to
the DM 5010
input connectors as shown in Fig. 2-5. The
value of the
resistor and the power
supply voltage set the
zener current.
The displayed
voltage initially is unstable until the current
through
the diode
reaches its final
value.
When the
display
stabilizes,
the displayed voltage is the difference between
the nominal zener voltage (15 V) and the
actual zener volt
age for the
zener diode being
measured.
To read the voltage difference
in percent deviation,
change constant A
to .15 where A = B
(.01).
Example 2:
Using dBr to find
the
point where
an audio am
plifier is 3 dB down from mid-range.
DCV
on
NULL
off
LOW
FREQ
RESPONSE
off
RANGE
AUTO
TRIGGER MODE
RUN
CONVERSION RATE
FAST
off
CALCULATIONS
X-B
A
on
all
others
off
REAR
INPUT
off
Set
the DM
5010 front-panel
controls as follows:
ACV
on
NULL
off
LOW
FREQ
RESPONSE
off
RANGE
AUTO
TRIGGER
MODE
RUN
CONVERSION
RATE
FAST off
CALCULATIONS
off
REAR
INPUT
off
Set the
constant A to 1.
Set
the constant B to
15 (for a 15 V zener diode).
Set
constant ref to
1. Connect a sinewave generator, the
audio
amplifier,
and the DM 5010 as shown in Fig. 2-6.
2994-05
Fig. 2-5. Setup for calculation example 1.
2-11
Summary of Contents for DM 5010
Page 14: ...DM 5010 2994 00 DM 5010 Programmable Digital Multimeter xii ADD JUL 1986...
Page 27: ...Operating Instructions DM 5010 2994 03 Fig 2 3 DM 5010 front panel controls and connectors 2 3...
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