Fluke 8502A - Measurement Instructions; DC Voltage Measurement Procedure; DC Zeroing Procedure; AC Voltage Measurement Procedure

12
.
Measurement
Instructions
Perform DC
ZERO, if
necessary.
No
additional
zero procedure is needed for ac
voltage.
Select desired modifiers and
memory operations.
2-83.
DC
VOLTAGE (V DC)
2-84. Use the following procedure when
measuring dc
volts:
1.
Select the VDC function.
2.
The 8502A
will
go
to autoranging. If desired, select
manual ranging and one
of
the
five available ranges
(lOOOV, lOOV,
lOV,
IV, or 100 mV).
3.
Perform DC
Zero,
if needed
(100
mV
range
only).
4.
Select desired modifiers
and memory operations.
5. Connect
the
dc
voltage to the HI and LO SENSE
INPUT terminals.
6. A
dc voltage
reading should
now
appear in the
display.
2-85.
DC ZERO
2-86. For
dc
zeroing, use the
following steps:
L
Select the V DC function
and either autoranging
or the 100 mV
manual range.
2.
Place a good
quality,
low
thermal short across
the
H! and LO INPUT
terminals.
3.
Depress the STORE switch.
“?”
will appear in the
display.
4.
Depress the VDC/OHMS
ZERO switch;
value
applied
to input terminals will now
be displayed
as long
as the switch is held
depressed.
5.
Release of
the switch will activate
V DC/Ohms
Zero mode,
applying
the
value read in step 4 as a
zero
reference for subsequent
readings.
2-87.
AC
VOLTAGE
(V
AC)
2-88. Use the
following
procedure
when measuring ac
volts:
1. An AC
Converter module must be
installed
(Option —01, or
—09
A).
2.
Select the VAC function.
3. The 8502A will go
to autoranging;
manual
ranging
can be selected if
necessary. There are four avail-
able ranges: lOOOV, lOOV, lOV,
IV.
5.
6
.
The slow filter (FILTER LED
illuminated)
must be
selected
for
full accuracy below 400 Hz.
7. Connect
the ac
voltage
to
the
HI and LO SENSE
INPUT terminals.
8. The ac
voltage
should be read in the display.
2-89.
AC VOLTAGE
ON A DC LEVEL(VDC
and
V
AC)
2-90.
Use the following procecure when measuring ac
and
dc
voltage;
1. The RMS AC
Converter
module must be installed.
2.
Depress both V DC and
V AC
awitches simultane-
ously.
3. The 8502A
will
go to
autoranging;
manual
ranging
can be selected if necessary. There are four avail-
able ranges:
lOOOV,
lOOV, lOV or IV.
4.
Select
desired modifiers and memory operations.
5.
Connect the unknown voltage to the HI and LO
SENSE
INPUT terminals. The reading displayed
will be the rms value of the two
voltages combined.
2
-
91
. DC
CURRENT (A DC)
2-92. Use the following procedure when measuring dc
current:
1. The Current Shunts
module
must be installed.
2.
Select the A DC function.
3.
The 8502A will go to
autoranging;
manual
ranging
can
also be utilized to select one of five available
ranges
(100
uA, 1
mA,
10
mA,
100
mA, or
lA).
4.
Select desired modifiers and memory operations.
5.
Connect
dc
current to HI
and LO
INPUT SOURCE
terminals.
2-93.
AC CURRENT (A AC)
2-94. Use the following procedure when measuring ac
current:
1.
The Current Shunts module must be installed.
2-18