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5 calibrating the d/a of c.v. mode – GW Instek PEL-300 User Manual

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4-5 Calibrating the D/A of C.V. MODE

n Set voltage of POWER SUPPLY to 62V and current of it to 0.5A.
o Connect the output terminal of POWER SUPPLY to the input terminal of electronic load.
p Test the input terminal of the load by the 200V range of a DMM. Pursue a reading of 62.00V from the

DMM.

q Press SHIFT and C.V. MODE, then key in 3, 8, 0, 4, and ↵.
r When MEMORY indicates “01” and A indicates “CL04”, key in the voltage reading (5 digits including

decimal) of the DMM (in unit of “V”) and press

↵ .

s When MEMORY indicates “02”, key in the voltage reading (5 digits including decimal) of the DMM (in unit

of “V”) and press

↵ .

t When MEMORY indicates “03”, key in the voltage reading (5 digits including decimal) of the DMM (in unit

of “V”) and press

↵ .

Note: Applied instruments -- POWER SUPPLY (60V, 6A); DMM (5 1/2 digits)

Applied situation --The readings of the C.V. MODE are not reliable.

4-6 Calibrating the D/A, A/D in 6A range of C.C. MODE

n Set voltage of POWER SUPPLY to 30V and current of it to 6.2A.
o Connect the output terminal of POWER SUPPLY to a DMM in 20A range in series. Hook up the DMM

with the input terminal of electronic load.