PCB Components
FRONT PANEL
=======================================================================
Reference Designator
Part Description
========================================================================
OUTPUT SOCKETS
SOCKET 1
SOCKET 2
SOCKET 3
SWITCHES
SW1
SW2
FUSE
F1
F2
FUSE HOLDERS
FH1
FH2
European ( 230VAC )
American ( 115VAC )
SLBR4 ( Lekage Red )
TABLE OF CONTENTS
SECTION DESCRIPTION
1
2
3
INTRODUCTION
SPECIFICATIONS
DESCRIPTION
OPERATING INSTRUCTIONS
SERVICE &
WARRANTY INFORMATION
CALIBRATION PROCEDURE
PART LIST & SCHEMATICS
CIRCUIT DIAGRAM
PAGE NO.
1
2
3
4
5
ON/OFF SPDT 1801 10A/230V
DPDT Toggle 6A/250V
6Amp / 250V S/B
5AMP / 250V S/B
10Amp / 250V R3-11
10AMP / 250V R3-11
4
5
PCB Components
CHASSIS
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Reference Designator
Part Description
========================================================================
TRANSFORMERS
T1
T2
T3
T4
T5
6
7
7
8
12
1506 Isolation
1506 Current
1506 DPM
1506 0-120V/4Amp Variable
1506 Voltage Sense
8
11
SECTION - 1
INTRODUCTION
ISOLATED VARIABLE AC LINE SUPPLY : MODEL1505
The 1505 Isolated Variable AC Source cum leakage current tester
is designed for modern electronics laboratories needing a clean,
electrostatically and galvanically isolated variable line supply.
The unit is designed to provide isolated output variable from 0 to 130
V AC at 4 Amps max and 0 to 260VAC at 2A max on two seperate
output sockets through a range selector switch.The output voltage
and load current can be monitored on a 3 digit DPM. The variable
isolated output voltage capability makes this unit very convenient
to use for either incoming or outgoing quality control testing. It is
also useful for servicing or circuit design work, when checking
operation at voltage higher or lower than normal. The unit consists
of a super isolation transformer which is triple shielded from the line
to protect against shock hazards.
The 1505 can measure power line leakage current by means of a
probe and a switch selected range of the output DPM. It can
measure leakage currents upto 9.99 mA. The unit is overload
protected by means of an input /output fuse.
INITIAL INSPECTION
Before shipping, the 1505 power supply has been tested thoroughly
and found free of mechanical and electrical defects. As soon as it
is unpacked, inspect for any damage that may have occurred during
transit. Particular attention should be paid to the meters. Also
check the packing material for any signs of severe stress (may
be indicative of internal damage). Save all the packing material.
Read the INSTRUCTION MANUAL carefully prior to operation.
PCB Components
0893 DPM
=======================================================================
Reference Designator
Part Description
========================================================================
CAPACITORS
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
* C12
* C13
DIODES
D1
D2
D3 TO D6
TRANSISTORS/FET’S
Q1
Q2
Q3
IC
IC1
FND’S
DS1
DS2
DS3
LED’S
LED1
LED2
CONNECTORS
CON1
CON2 ( L' Type )
220pf 100V ±20% CD
0.1µf 100V ±10% MP
0.01µf 100V ±20% CD
0.47µf, 100V ±20% CD
0.1µf, 50V ±10% MP
10µf, 35V ±20% EL
0.1µf, 50V ±10% MP
0.1µf, 50V ±20% CD
Not used
470µf, 35V ±20% EL
2.2µf, 50V ±20% EL
47µf 50V, ±20% EL ( Additional )
0.1µf 50V, ±20% CD ( Additional )
1N4148
1N4148
1N4007
TL431
MPSA12
LM7805
ICL 7107 CPL
TSD566 ( Green )
TSD566 ( Green )
TSD566 ( Green )
3mm GREEN Defused
3mm GREEN Defused
1
3 PIN 2.54 PITCH ( Male / Female )
7 PIN 2.54 PITCH ( Male / Female )
10
PCB Components
GLOBAL 1505 / 06 SW - 0396
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Reference Designator
Part Description
=======================================================================
IC’S
IC1
IC2
PUSH SWITCHES
SW1 TO SW3
RELAY
RL1
CONNECTORS
CON1
CON2
SECTION - 2
SPECIFICATIONS
INPUT VOLTAGE
INPUT FREQUENCY
OUTPUT
:
:
115 VAC
47Hz to 63Hz.
7660 S
KA 741/ LM 741
4 Pole, 2 Way ( Interlock )
METERING
2/P 2CO 6V/6A ( OEN 58-06-2C )
:
I : 0 to 130 VAC at 4AMP MAX.
(Available on American socket only.)
II : 0 to 260 VAC at 2AMP MAX.
(Available on European socket only.)
:
3 digit DPM to read
1) Output Voltage.
2) Load Current and
3) Leakage current upto 9.99 mA.
± 3 counts.
Capacitive coupling less than 0.0005 pF
Better than 120 db
(common mode noise).
11.73"(W) x 5.23"(H) x 10.62"(D)
35 lb. approx.
5 PIN 2.54 PITCH ( MALE / FEMALE )
7 PIN 2.54 PITCH ( MALE / FEMALE )
METER ACCURACY
OUTPUT-LINE ISOLATION
NOISE REJECTION
:
:
:
PCB Components
0893 DPM
=======================================================================
Reference Designator
Part Description
=======================================================================
RESISTORS
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
PRESETS
PR1
DIMENSIONS
WEIGHT
:
:
39K,
¼W,
±5%, MFR
470K,
¼W,
±5%, MFR
1ME,
¼W,
±5%, MFR
SEL ,
¼W,
±5%, MFR
2.4K,
¼W,
±5%, MFR
2.7K,
¼W,
±5%, MFR
30K,
¼W,
±5%, MFR
8.2K,
¼W,
±5%, MFR
100E,
¼W,
±5%, MFR
12K,
¼W,
±5%, MFR
20K,
¼W,
±5%, MFR
100E,
¼W,
±5%, MFR
330E,
¼W,
±5%, MFR
Not in Use
2.2K Horizontal
9
2
PCB设计
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