Tektronix DM501A - Page 41

h.
Press
the
200 mV range
push button.
i. Set the dc
voltage calibrator
for
10.00 V output.
j
Check~the
display
for a reading of
-^00.13.
k. Move
the
red lead of the
clip
lead adapter to
black
binding
post and
repeat
part
j.
l. Replace the dc
voltage calibrator with an ac
voltage
calibrator.
rn. Set the ac
calibrator for
a 10 V ac
rms output at
either 50 or
60
Hz iO.2 Hz.
n.
Check—
the
display
for
a reading of •s;01.44.
0
. Press the
VOLTS
AC
TRUE
RMS function push
button.
p.
Chock—the
display
for
a reading
of ?;14.33.
q.
Move the red lead of theclip lead adapter
back
totho
side of the resistor connected to the red binding
post.
r.
Check
as per
part
p.
s.
Press
the VOLTS DC function pusti button.
t. Check as per
part
n.
u. Remove
the
connections
to
the
DM
501A.
3.
Check
Dc Normal
Mode
Rejection
(60
dB)
a. Connect a bnc female-to-dual
banana connector
to
the VOLTS/n and LOW
connectors.
b.
Connect
the
bnc
female connector through
a coax-
ial
cable to the
ac
voltage calibrator.
c.
Press the VOLTS DC function
push button
d. Press the
200 mV
range
push
buhrm.
e.
Set the
ac calibrator
for
5
V nc
rui'. output at either
50 or 60 Hz,
±0.2 Hz.
f.
Check—
the display
for
a
reading
vf
<
0 /.
10.
4.
Check Ac
Voltage
Accuracy
a.
Connect
ttie
ac
voltage
calibratoi to
the VOLTS/Q
and LOW
connectors
through appropiiale
ca.hles and
connectors.
b.
Press the
VOLT
S
AC TRiuE
P.i'
'3
I
jr.ciion
pusti
button.
c.
Press
the
range push
button n;;d sat tiio
caliiitator
voltage
as listed
in
Tabie
4-3,
d. Check—
ttiat the DM
50 1
A
d'.;play
reads
withT, th'
display limits for the
ambient
tempei
alure''.
.an,d
fieqijen-
cies as
bsted
in Table
4-3.
e.
Set the
ac
calibrator
to
a
if.lnimitm
voltage.
5.
Check dBui Accuracy
(Factory Shipped .vith
internal jumper set
for
dB.n
readou')
a. Press
lhr>
VOLTS AC rnUE fiMS and
dS
push
buttons.
b.
Conned
iiie
ac voltage calibrator to
the
VOl
i
S/Q
and LOW connectors through
aj i,.iro[)Matn
cables
and
connectors.
C- Press the range push button and
m.L
ba-
miiI uafor
voltage
and frequency
as
lis'nd
in
Taole
4
d.
Check
-
that
tlie
DM
50't
A
di
'-piay
iamdorit is within
the
display limits
for the ambient
toinp'
rati
nos
and
frequencies
as
listed
in
Table 4
4,
Check
dBV Mode limits. The check proi.edn.c
ts
identical
to the setup for the dBm Accuracy ch.eck
with ihe
exception
of
using
the range pu"h
bull
>ns and
cuibinuoi
voltages
as listed in
Table 4
5
4-3