Tektronix DM501A User Manual

Calibration Procedure
—
DM 501A
Adjustment
Procedure
b
Ai'ji.'st
[!u; selected
control for
the required
display.
I. Remove connections.
c neturn the
calhitator to
a
minimum
voltage.
d '’'omove connections.
4. Ad'us! AC
Converter and
Atfemsator
Ccrrtpensalion
a.
(lie
VOLTS AC
function push
button.
b
”re.S5
the
2
V range puuh
button.
c :
ttie £ic voltage
sourc e frequency
to
lOkt
lzwith
an
oupiut
of
0.
1
COO
V
rms.
d C'onrnct
the
ac voltage
source to
tfie
LOW
connec-
Irir
auo
Vt'LTS.
C connt.'ctor
on the front
panel.
t UlnL.S
(LO
Vac) for
a
c'lsplay
reading
of
0097-
.1002
f.
Set
the ac calTirator for
a voltage
of 1.9000 V rtns
at
10 kl tz.
g.
Adjicd R1537
(2
Vac) for
a
display reading
of
1 090 h
1.9095.
h. Intoractjon
may occur in the adjustments of R1525
and
1
537
Refutat stop
2,
part b
through
part
g,
as
needed.
i. Adjust 20
Vac, 200 Vac,
and 500
Vac ranges.
(.y.ju an
ui.iuldteci shdU
adjusImoiU
tool when
ad-
I'.iatinrj
Ciipaalors Cl
114,
C1128,
and Cl 129. The
inp'ii
pntuntial
i.\:
connected
to
the metal top
of
those
r:<;>aa>nrs.
j.
L!
dng table
4-16, set ttie range a:id the required ac
caldnation voltage.'.
Adjust
the
selc;ctfd
control for the
required rtisplay
reading.
k.
Set Ihe
;ic:
voltage calibrator to a
minimum voltage.
5.
Adjust dB0 and
dB
Gain
a. Press
the
VOLTS
AC push
button.
b. Check and note
the position
of the
dDm/clBV
internal
jumper. Set the
ac calibrator for 77.46
mV
(dBm)
or
100.00 mV (dDV)
at a
frequency
of
10 kHz.
c. Press
the
ilU
function push button.
d. Press the
20
dB range push button.
e. Adjust
Rl53;j
(dB0)
for
a
display
reading of .1 to
. 2
.
I
Set the
ac
calibralor for 774.6 mV
(dBm) or 1.0000
V
(dBV).
g.
Adjust
rills
(dB
Gain) for
a
flashing display
positive reading
v.ath
the upper segment
of
the 1
in
the
most significant
digit
followed
by
the
numerals
0.0.
Ii.
Set the
.ic
calibrator for 7.746
mV
(dBm) or
10.00
rnV
(dBV)
i. Chock for
,i
flashing display negative
reading
with
the upper segmer't
ot the
1 in the
most significant
digit
followed
by the
numerals
0.0.
j
The
settings
of R1535
(dEt0)
and R1528
(dB
Gam)
may need to
be compromised
for optimum
operation
within the limits specified.
Refer
to Tables
4-4
or
4-5.
k.
Remove !h«
ac
calibrator
connections from
ttie
DM 501 A.
6. Adjust HI Ohms and LO Ohms
a
Pi'.iss the
lu.
.'
function push button.
b.
Press the-
kQ
range push button.
c.
Set
all
ottier
[rush buttons
to
the out position.
4 12
fa)

Tektronix DM501A Specifications

General

Brand	Tektronix
Model	DM501A
Category	Multimeter
Language	English