Advance Instruments PP3R, PP3 Instruction Manual
Twin
Stabilised
D.C.
PP3
Instruction
Supplies
&
PP3R
Manual
Twin
Stabilised
D.C.
PP3
Supplies
&
PP3R
Instruction
ADVANCE
INSTRUMENT DIVISION
ROEBUCK
ROAD,
TELEPHONE
ELECTRONICS
HAINAUl
HAINAULT
44«
T,
IlfORD,
TELEGRAPH
Manual
ESSEX,
ENGLAND
ATTENUATE,ILFORD
LIMITED
Publication
I
209
Contents
SECTION
SECTION
SECTION
SECTION
SECTION
SECTION
SECTION
1
2
3
3.1
3.2
3.3
3.4
3.5
4
4.1
4.2
4.3
5
5.1
5.2
5.3
6
7
Introduction
Specification
Operating
Prcpa ra t
ion~
Metering
Overload
Four
Terminal
Fuses
Circuit
Description
General
Stabilising
Overload
Maintenance
Cm:uil
Cut-Ollt 6
General
Re-alignmenl
Adjustment
Components
Factory
Service
Instructions
l}sc
for
NCl\\ork
of
Voltage
or
Overload
List
Calihration
lut-Ollt
1
4
5
5
5
5
5
5
6
6
6
7
7
7
7
9
10
Illustrations
Fig.
1
Component
Fig.2
Circuit
2
Location
Diagram
Diagram
1
Introduction
1
The Twin Stabilised
instrument providing two independent and
stabilised d.c. supplies, each variable from 0
A maximum. The two supplies can
1
or
connected
60V
alIA.
In both sections
in
three overlapping nominal
adjustment provided
calibrated
ammeter are provided, and these can
independently to monitor either section.
Both sections are provided with four terminal
networks which virtually eliminate the effect
in
in
D.c.
Supply PP3
series 10 provide a maximum
of
Ihe instrument, the range
10V
by
a variable control directly
volts. A voltmeter and a dual-range
is
a portable
110ating
to
be
used separately,
output
is
covered
steps, with
be
switched
30V
at
of
fine
output
resistance
Overload protection
which an'ords complete protection against both
progressive and sudden short circuit overloads. This
circuit
ON/OFF
The instrument
130V
against both supply surges and internal com ponent
failure. The Twin Stabilised
19-inch rack mounting version
cation
additional facility
10-way terminal block at the rear
of
in
the connecting leads to the load.
is
effected
is
reset from Ihe front panel
switch.
will
operate from a.c. supplies
and 200 to 240V. Fuses are provided
is
identical to the PP3 but the PP3R has the
of
the
by
an electronic circuit
by
operation
D.C. Supply PP3R
of
the PP3. The specifi-
output
being available on a
of
the instrument.
of90
to
of
the
to
protect
is
a
3
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