Calibration
Procedure
—DM 501A
Performance Check
Procedure
Table
4-4
FRONT PANEL
dBm
ACCURACY
Calibration Frequency, 20
Hz
to 20 kHz, ( 20 dB
to
-15
dB
20 Hz to 10 kHz, 15 dB
to
-20
dB
1
1
1
r
-
DISPLAY LIMITS
1
Range
Calibration
Voltage
Ambient Temp.
Range
4 IS^^C
lo
428^^0
Ambient Temp. Range
0°C
to
i
18°
C,
+28°
C lo
i
50°
C
-40
(.IB
^
7.746 mV
-.5
to
f.5
-1.1
to
1 1.1
40 cIB
77 46 mV +19.5 lo* +20.5 +
18.9
to* +21.1
40
dB
0.7/46
mV
i
-19.5
lo*
-20.5
20 Hz
to 2
LH.'.
-18.5
to*
-
21.5 2
kHz
to
10
kHz
-18.9
to*
-21.1
20 Hz to 2 kHz
-17.9
to*
-22.1
2
kHz to 10 kHz
?0 dB
j
7.746
mV
1
19.5 to
20.5
20
Hz to 2
kHz
-18.5
to
-21.5
2 kHz to 10
kHz
i
-18.9
to
-21.1
20 Hz
to 2 kHz
-17.9
to
-22.1
2 kHz
to 10 kHz
20
dB
77.46
mV
-.5
10
t.5
-1.1
to (
1.1
20
dn
774.6
mV
1
19 5 to* i 20.5 1 18.9 to* +21.1
&
2
is
displayed,
ttie
DM 501 A
overranges (flashing display) and illuminates
the
upper
segment of the
1
in the
most
signinr-;in!
digit.
Table
4-5
FRONT PANEL
dBV
ACCURACY
Calibration Frequency, 20 Hz to 20 kHz,
+20 dB to
-15
dB
20 Hz to 10 kHz,
-15
dB lo
-
20 dB
1
1
1
f
DISPLAY LIMITS
1
Calibration Ambient Temp. Range
Ambient
Temp. Range
Range
Voltage
+
18°C
to
i
28°C
0°C to
(-18°
C,
+28°
C lo
(^50°
C
40 dB
1
1 0 mV
-.5
to
-1
.5
-
1.1 to
i
1.1
10
dB
100
mV
(19
5
to*
(20.5
(
18.9 to*
+21.1
40 dn
1 mV
19.5 to*
-
20,5 20 Hz to
2
k' lz
-18.5
to*
-2+5
2
kHz
to
10 kHz
-
18.9 to*
-21.1
20
Hz
to 2
kHz
-
17.9 to'
-22.1
2
kHz to 10
kHz
20 dB
10
mV
;
19.5 to
20.5 20 Hz
lo 2
kl Iz
’
-18.5
to
-21.5
2 kHz
to
10 kHz
-
18.9 to
-21.1
20 Hz
to
2
kHz
-17.9
lo
-22.1
2
kHz
to
10
kHz
20 d3
1
100 mV
,5 to
1
.5
-1.1
to
kl.1
20 do
!
>
V
1
19.5 to*
1
20.5
'
18.9
to* 1
21.1
1
. ...
.
“When a 2
is dispiayed, the
DM 501 A
overranges (flashing
display) and illuminates
only the upper segment
of the 1 in the most
signifirrant digit.
A-
6
REV A JAN
1980