Global Specialties 1506 - Manual (Page 7)

SECTION - 4
OPERATING INSTRUCTIONS
a) 1506 as Isolated Variable AC Supply.
Set output voltage to ‘0’ volt by turning the 'Set Voltage' knob to
minimum position. Press push button switch marked 'V'
Keep the output voltage selector switch to the desired range
(0 -130V or 0 -260V). Isolated variable voltage will be available
at the respective output socket only.
Switch "POWER"ON. Adjust the voltage control knob till the
desired voltage is indicated on the 3-digit DPM.Connect the load
at the output. Press push switch marked 'A'.The DPM will now
read the load current. The total load current should not exceed
the maximum rating indicated for each range.
b) 1506 as Line Leakage Tester.
Set output voltage to ‘0’ volt by turning the knob to minimum
position. Press push switch marked ‘V’. switch "POWER" ON.
Adjust the voltage control till the desired voltage at which leakage
current is to be measured is available at the output socket.
Now press push switch marked ‘mA’. Connect unit under test
(U. U. T) to output socket. Connect the leakage test probe at
the socket marked 'Leakage Test'. Connect the other end of
the leakage test probe to the chassis of the unit under test.
Depending on the leakage,the DPM will read the leakage
current.
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LEAKAGE CURRENT CALIBRATION
9) Set output voltage to zero volt s by turning the Voltage
knob to minimum position.
10) Press push switch marked ' V '
11) Switch on the power.Adjust output voltage to 130VAC.
12) Press push switch marked ' mA '. now DPM will read
leakage current.
13) Connect 25 Kohm (aprox.1W) resistor across banana
socket ,marked 'LEAKAGE TEST', & live point of output
socket. Adjust preset PR1on switch pcb so that DPM
reading is 5.00mA
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