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Philips PM 6611 - Page 16

Philips PM 6611
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14
Measurements
CHECK
Depress
the
two
CHECK
push-buttons
@
©.
2.
Set
DISPLAY
TIME
@
to
mid-position
Rotate
switch
@
and
read
display
value
as
follows:
Function
Read
(+1
digit)
FREQ
100
Hz
10.000
FREQ
10
Hz
10.00000
ÉREOMMIREZ
10000.000
FREQ
0.1
Hz
10000.0000
PERIOD
n
=
1
PERIOD
n
=
102
0.100
PERIOD
n
=
104
0.10000
4.
Set
switch
®
to
position
COUNT
A.
Depress
START/STOP
push-button
®
:
the
counter
will
start
totalizing
the
input
pulses
and
the
display
will
follow
the
counting
continuously
until
push-
button
START/STOP
@
is
released
again.
FREQ.
A
.
Set
DISPLAY
TIME
Q
to
mid
position.
Set
function
selector
@
to
any
of
the
four
fre-
quency
positions
that
corresponds
to
the
desired
resolution
of
the
measurement.
Connect
the
signal
to
be
measured
to
input
A
Q.
Match
the
input
of
the
counter
to
the
frequency
and
dutyfactor
of
the
signal
to
be
measured
by
depressing
any
of
push-buttons
O
@
@
Q.
Adjust
SENSITIVITY
control
@
for
stable
display
read-out.
FREQ.
B
(not
present
in
PM
6611)
.
Set
DISPLAY
TIME
Q
to
mid
position.
Turn
on
channel
B
by
depressing
the
push-but-
ton
©.
Set
function
selector
®
to
any
of
the
four
frequency
positions
that
corresponds
to
the
desired
resolu-
tion
of
the
measurement.
Connect
the
signal
to
be
measured
to
input
B
®.
PERIOD
A
Set
function
switch
@
to
any
of
the
three
PERIOD
A
positions
depending
on
the
desired
number
of
periods
to
be
measured.
Match
the
input
of
the
counter
to
the
frequency
and
dutyfactor
of
the
signal
to
be
measured
by
depressing
any
of
the
push-buttons
@
9
@
©.
8.
RATIO
A/C*
1.
Set
function
switch
@
to
any
of
the
two
RATIO
positions
depending
on
the
desired
number
of
decimals
of
the
display
read-out.
2.
Set
DISPLAY
TIME
@
to
mid
position.
3.
Connect
the
signal
with
the
highest
frequency
to
input
A
@.
4.
Match
the
input
of
the
counter
to
the
frequency
and
duty
factor
of
the
signal
to
be
measured
by
depressing
any
of
the
push-buttons
@ O
@
©.
5.
Connect
the
signal
with
the
lowest
frequency
to
input
C
®.
6.
Adjust
SENSITIVITY
control
€)
for
stable
display
read-out.
9.
RATIO
B/C*
(not
present
in
PM
6611)
1.
Set
function
switch
@
to
any
of
the
two
RATIO
positions
depending
on
the
desired
number
of
decimals
of
the
display
read-out.
Set
DISPLAY
TIME
@
to
mid-position.
3.
Connect
the
signal
with
the
highest
frequency
to
input
B
6.
4.
Turn
on
channel
B
by
depressing
the
push-but-
ton
©.
5.
Connect
the
signal
with
the
lowest
frequency
to
input
C
Q.
10.
TOTALIZE
(COUNT
A)
1.
Set
function
switch
@
to
position
COUNT
A.
2.
Connect
the
signal
to
be
measured
to
input
A
Q.
3.
Match
the
input
of
the
counter
to
the
frequency
and
duty
factor
of
the
signal
to
be
measured
by
depressing
any
of
the
push-buttons
9
©
0
©.
Set
DISPLAY
TIME
@
to
mid
position.
.
Depress
START/STOP
push-button
®.
6.
When
depressing
the
START/STOP
push-button
®
the
counter
will
start
totalizing
the
input
pulses
until
push-button
START/STOP
®
is
released
again.
The
display
will
show
the
number
of
pulses
counted
in
the
time
interval
between
depressing
and
re-
leasing
the
START/STOP
push-button
®.
*
NOTE
Multiplier
factors
105, 106,
107
and
108
are
possible
in
the
frequency
mode
by
using
input
C
as
the
external
time
base
reference
input.
(set
the
internal
jumper
switch
@
to
EXT.)
The
decimal
point
is
then
incorrectly
positioned.

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