Global Specialties 1506 User Manual
1506
Instruction Manual
Isolated Variable AC Line Supply
10/2011
TABLE OF CONTENTS
SECTION DESCRIPTION PAGE NO.
1 INTRODUCTION 1
2 SPECIFICATIONS 2
3 DESCRIPTION 3
4 OPERATING INSTRUCTIONS 5
5 SERVICE & 6
WARRANTY INFORMATION
6 CALIBRATION PROCEDURE 9
7 PART LIST & SCHEMATICS 11
8 CIRCUIT DIAGRAM 15
SECTION - 1
INTRODUCTION
ISOLATED VARIABLE AC LINE SUPPLY : MODEL1506
PCB Components FRONT PANEL
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Reference Designator Part Description
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The 1506 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 1506 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 1506 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.
OUTPUT SOCKETS
SOCKET 1 European ( 230VAC )
SOCKET 2 American ( 115VAC )
SOCKET 3 SLBR4 ( Lekage Red )
SWITCHES
SW1 ON/OFF SPDT 1801 10A/230V
SW2 DPDT Toggle 6A/250V
FUSE
F1 6Amp / 250V S/B
F2 4AMP / 250V S/B
FUSE HOLDERS
FH1 10Amp / 250V R3-11
FH2 10AMP / 250V R3-11
PCB Components CHASSIS
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Reference Designator Part Description
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TRANSFORMERS
T1 1506 Isolation
T2 1506 Current
T3 1506 DPM
T4 1506 0-120V/4Amp Variable
T5 1506 Voltage Sense
1
14
PCB Components 0893 DPM
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Reference Designator Part Description
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SECTION - 2
SPECIFICATIONS
INPUT VOLTAGE : 230V AC
CAPACITORS
C1 220pf 100V ±20% CD
C2 0.1µf 100V ±10% MP
C3 0.01µf 100V ±20% CD
C4 0.47µf, 100V ±20% CD
C5 0.1µf, 50V ±10% MP
C6 10µf, 35V ±20% EL
C7 0.1µf, 50V ±10% MP
C8 0.1µf, 50V ±20% CD
C9 Not used
C10 470µf, 35V ±20% EL
C11 2.2µf, 50V ±20% EL
* C12 47µf 50V, ±20% EL ( Additional )
* C13 0.1µf 50V, ±20% CD ( Additional )
DIODES
D1 1N4148
D2 1N4148
D3 TO D6 1N4007
TRANSISTORS/FET’S
Q1 TL431
Q2 MPSA12
Q3 LM7805
IC
IC1 ICL 7107 CPL
FND’S
DS1 TSD566 ( Green )
DS2 TSD566 ( Green )
DS3 TSD566 ( Green )
INPUT FREQUENCY : 47 to 63 Hz.
OUTPUT : 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. )
METERING : 3 digit DPM to read
1) Output Voltage.
2) Load Current and
3) Leakage current
upto 9.99 mA.
METER ACCURACY : ± 3 counts.
OUTPUT-LINE ISOLATION : Capacitive coupling
less than 0.0005 pF.
NOISE REJECTION : Better than 120 db
( common mode noise ).
DIMENSIONS (W x H x D ) : 11.73" x 5.23" x 10.62"
LED’S
LED1 3mm GREEN Defused
LED2 3mm GREEN Defused
CONNECTORS
CON1 3 PIN 2.54 PITCH ( Male / Female )
CON2 ( L' Type ) 7 PIN 2.54 PITCH ( Male / Female )
13
WEIGHT : 35 lb. approx.
2
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