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M
odel 435Β
General Information
S
E
CTIO
N
Ι
G
ENER
A
L
I
NF
O
RM
ATIO
N
1-1 .
INTRODUCTION
An instrument manufactured after
t
he printing of
This m anual provides information pertaining to
this manual may have α serial number prefix that
the installation, operation, testing, adjustment
is not listed on the title page. This unlisted serial
and maintenance of t he HP
M
odel 435Β Power
prefix indicates that the instrument is different
M
eter .
from those documented in this manual. The man-
ual
f
or this newer instrument is supplied with α
y
ellow Manual Changes supplement that con-
Figure 1-1 shows the Power Meter with accessories
tains "change information" explaining h ow to
supplied .
adapt the manual to the newer instrument.
An operating manual is shipped with
t
he instru-
In addition to change information, the supple-
ment. This
i
s simply α copy of
t
he first three sec-
m ent m ay contain information for correcting er-
tions ofthis manual. The operating manual
s
hould
rors in the m anual . To keep this manual as current
be kept with
t
he instrument
f
or use by the opera-
and accurate as p ossible,
H
ewlett-Packard recom-
tor. Additional copies of the operating manual
mends that
y
ou periodically request the latest
may be ordered separately through your nearest
Manual Changes supplement. The supplement
f
or
Hewlett-Packard
o
ffice. The part number is listed
this manual is
k
eyed to the m anual's print date
on the title page of this manual.
and part number, both
o
fwhich appear on the title
p
age. Complimentary copies of the supplement
On the title page of
t
his manual, below
t
he manual
are available from Hewlett-Packard .
part number,
i
s α "Microfiche" part number. This
number may be
u
sed to order 100 χ 150 mm (4χ6-
For information concerning α serial number prefix
inch) microfilm transparencies of the manaul. The
n ot listed on the title page or in the Manual
microfiche package also includes the latest Man-
Changes supplement, contact your nearest
υαl
C
hanges supplement as well as all pertinent
Hewlett-Packard
o
ffice.
Service Notes.
Instrument specifications are listed in Table 1-1.
1-3 .
DE SC R IPTIO N
These specifications are the performance stand-
The Power Meter
a
nd α compatible power sensor
a
rds or limits against which the instrument may
are interconnected with the power sensor cable to
be tested .
f
orm α power measurement system. The system
power level range, frequency response, and load
1-2. I NSTRUMENTS CO VERE D BY
M
ANUAL
impedance are dependent on the power sensor .
Options 001, 002, 003 and 004 of the
P
ower Meter
are documented in t his manual. The differences
Accuracy of the power measurement system is
are noted in the appropriate
l
ocation
s
uch as
ensured by the
f
ollowing Power Meter
c
haracter-
OPTIONS in Section Ι, the Replaceable
P
arts List,
i
stίcs:
and
t
he schematic diagrams .
α, An internal automatic zeroing circuit which
removes error due to the ambienttemperature out
This instrument has α two-part serial number . The
put of
t
he power sensor's power sensing device.
first
f
our digits and
t
he letter comprise the serial
number prefix . The l ast five digits
f
orm
t
he se-
b. Α calibration factor adjustment which ac-
quentίal
s
uffix that
i
s unique to each instrument.
counts
f
or error due to the frequency response of
The contents of
t
his manual apply directly to in-
the
p
ower sensing device.
struments having the same serial number pre-
i ιχ (es) as listed under
S
ERIAL NUMBERS on the
ε. An internal calibration reference which has
title page.
an output of 1 mW ± 0.7% ο (50Ω).
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