Global Specialties 1506 - Manual (Page 8)

SECTION - 5
SERVICE AND WARRANTY INFORMATION
FACTORY SERVICE AND REPAIR
Global Specialties will service and repair this instrument free of
charge for a period of one full year, subject to the warranty
conditions stated below.
To obtain a return merchandise authorisation (RMA) required for
all returns, phone our Customer Service Department for a RMA
and all shipping instructions :
GLOBAL SPECIALTIES
22820 Savi Ranch Parkway,
Yorba linda, CA 92887,
WWW.globalspecialities.com
800-572-1028
WARRANTY
Global Specialties warrants this device to be free from defective
material or workmanship for a period of one full year from the
date of original purchase.
Global Specialties under this warranty is limited to repairing the
defective device when returned to the factory, shipping charges
prepaid, within one full year from the date of original purchase.
Units returned to Global Specialities that have been subject to
abuse, misuse damage or accident, or have been connected,
installed or adjusted contrary to the instructions furnished by
Global Specialities, or that have been repaired by unauthorized
persons will not be covered by this warranty.
Global Specialities reserves the right to discontinue models,
change specifications price or design of this device at any time
without incurring any obligation whatsoever.
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SECTION - 6
CALIBRATION PROCEDURE FOR MODEL 1506
1) Keep the Voltage knob to minimum position(ccw). Press
push switch marked ' V '
2) Switch on the power.
3) Set reference voltage of DPM(pin no. 36 of U1-7107) to
1.00Volt by adjusting the preset VR1 on DPM pcb.
4) Set voltage at pin no. 6 of IC3 (CA3160) to zero Volts with
the help of preset PR4 on switch pcb.
VOLTAGE CALIBRATION
5) Set desired output voltage by turning Voltage knob in
clockwise direction.Connect external AC voltmeter at the
output.
6) Adjust preset PR2 on switch pcb so that DPM reading
matches with external AC Voltmeter.
CURRENT CALIBRATION
7) Press push switch marked ' A ' . Connect load at the output
with AC current meter in series with the load.The DPM will
now read the load current.(The load current should not
exceed 2 Amps/4Amps for Range A/B respectively.)
8) Adjust preset PR3 on switch pcb so that the DPM reading
matches with external AC current meter
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