HP 436A - Page 26

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Model 436A
FRONT
PANEL
FEATURES
(cont'd)
(Note cont'd)
Readout. To return to the dB Relative
Mode without changing the stored refer-
ence, press the
CD
WATT
MODE
or
dBm
MODE
switch just enough
to
release the
previously selected
MODE
switch. Do
not
press the
8
dB [REF]
MODE
switch or a
new reference will be entered.
0
Auxiliary
Meter:
Provides
a linear display with
respect
to
RF input power. For any
given
range, a
full-scale meter indication corresponds to the highest
indication that can be obtained on the Digital
Display.
41)
UNDER
RANGE:
Lights to indicate that RF input
power
level
is
too small
to
be measured on selected
range (autoranging disabled), or
on
Power Meter
lowest range (autoranging enabled) .
G
OVER
RANGE:
Lights
to
indicate that RF input
power
level
is
too large
to
be measured on selected
range (autoranging disabled), or
on
Power Meter
highest range (autoranging enabled).
REAR
PANEL
FEATURES
G)
SENSOR
INPUT:
This rear panel input
is
wired
in
parallel with the front panel input
CJ
.
Cl)
Line
Power
Module:
Permits
operation from
100,
120, 220, or
240
Vac.
The number
visible
in
window
indicates nominal line voltage to which instrument
must be connected
(see
Figure 2-1).
Protective
grounding conductor connects to the instrument
through this module .
Operation
WARNING
I
Any
interruption
of
the protective (ground-
ing) conductor inside or outside the instru-
ment
or disconnecting
of
the protective
earth terminal
is
likely to make the
instrument dangerous. Intentional inter-
ruption
is
prohibited. (See Section II.)
0
POWER
REF
OUTPUT:
Takes the place of the front
panel
0
POWER
REF
OUTPUT
connector
(Option
003
only).
f)
RECORDER
OUTPUT:
Provides a linear output with
respect to the input power.
+1.00
Vdc corresponds tc
a
full
scale
0
Digital Readout indication on the
range selected (refer
to
Tablel-1). The minimum load
which may be coupled
to
the output
is
1
MU.
RF
BLANKING:
Contact closure
to
ground when
GsENSOR
ZERO
switch
is
pressed.
May
be used to
remove
RF
input signal during automatic zeroing
operation.
fD
TALK
ONLY/NORMAL:
Associated with Hewlett-
Packard
Interface
Bus
Option 022
only.
NORMAL
position configures the Power Meter as a basic talker.
TALK
ONLY
position
is
normally used only when
there
is
no controller connected to the interface bus
(e.g., when
Power
Meter
is
interconnected with an
HP
5150A recorder).
9
Interface
Connector:
For
Power
Meter connection to
remote interface
Option 022.
Figure
3-1.
Front
and
Rear
Panel
Controls,
Connectors,
and
Indicators
(4
of
4)
3-5