Tektronix 2247A

Performance Check Procedure
CH 1/CH 2 VOLTMETER
Equipment Required (See Table 7-1)
Calibration generator
Leveled sine-wave generator
Function generator
50 © BNC coaxial cable
50 Q BNC termination
BNC coupling capacitor
DC Volts Accuracy
Set:
READOUT (intensity)
For a viewable
readout
A INTEN For a viewable
trace
Vertical MODE CH1
CH 1 VOLTS/DIV 50 mV
CH 2 INVERT Off
SCOPE BW Off
CH 1 Input COUPLING GND
Horizontal MODE A
A
SEC/DIV ims
A/B SELECT A Trigger
Trigger MODE AUTO LEVEL
Trigger CPLG oc
Trigger SOURCE VERT
Trigger SLOPE _~ (positive-
going)
Trigger HOLDOFF MIN
J
FOCUS
For
best
defined display
-™
Horizontal
POSITION
12
o'clock
\
ee}
b.
Press
the
VOLTMETER
button
and
then
press
DC
on
the
VOLTMETER
menu.
7
|
c.
CHECK—ground
readout
Is
0.0
mV
+1.2
mV.
d.
Set
calibration
generator
(PG
506)
internal
Square
Wave/DC
switch
to
- as
2247A
Operators
7-51