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BALZERS
Procedure
for
fine peak search
6.3
Analog
meBSured
valueS
If
you are
not
sure
if
there
is a
peak inside
the
defined
range,
first
run
a
coarse search.
Then proceed
as
fol-
6,3.1 Connectors
lows:
<elm> connector
Stop
any scans in
<run/halt>
:
»halt«
The <elm> connector
on
the
OC
421 quadrupole
con-
progress.
troller outputs the prefiltered electrometer signal.
Change to
<mass>
«MODE»
:
«SAMPLE»
«SAMPLE» mode
Select the
<cycle>
«FUNCT»
:
«ADJUST»
<mon> connector
«ADJUST» auxiliarY
The <mon>
connector
on the OC 421
quadrupole
con-
function
troller outputs the measurement signal from the signal
Define
the
type
of
<cycle>
«MODE»
:
«MONO»
processor
for all
measurement channels sequentially.
A
measurement
cycle
or
«MULTl»
recording instrument connected
here can record
the
operation
and
the
<cycle>
«ADJ-TYP»
:
«FINE»
measurement output signal linearly
or
logarithmically,
type
of search
depending
on
the parameter entry
for
the presentation
Start
the
Adjust
<run/halt>
:
»run«
format
(<output>
«MONITOR»).
function
<
AO>
connector
Feedback after successful Adjust
if
you have
configured the
AO 421
option
(or the
IC
421
option),
you can
record
up
to
1
2
measurement channels.
<elm>
Pause
o
2v
Connect your strip chart recorder
to
the
<AO>
connec-
connector
-
tot either
via
a
connection cable
you have
fabricated
DWELL»
time
yourself
for
this purpose
or (for
laboratory
use) via
the
AB
021 connection
box
available
as
an
option.
If
you have
configured
the AO 421
analog output option,
<mon>
one or more
measurement channels
can be
assigned to
connector
Pause
o.2v
each of
the
twelve
AO
channels
(<output>
«AO-CH»).
DWELLa
time
CAUTION:
If
two
or more
measured values have
Peak found
been assigned to
one AO
channel, they
will
be
output sequentially.
The
interface allows data not defined
in
measurement
<
AO>
channels to
be
output
via
the
AO,
connector
no
output
old
value
temains
6.3.2 Overview
of
the output
signals
The
following
is
a
summary
of
all the
signals output
at
<sync>
>
the
<AO>
and
<mon>
connectors resulting from the
connector
Pause
various operating modes.
<mass>
«MODE»
:
«SCAN-Nu
and
HSCAN-Fu
When the Adjust
has been run
through, the same infor-
<mon>
mation
is
available
as
for
a
coarse
peak
search-
and
<AO>
connectors
<
sync>
connector
r
«FIRST>
«WIDTH»
68
Measuring
with
the QMS 421
OMs421ao.opm
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