Ametek SFA Series Programming Manual Instrukcja Użytkownika Strona 37

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SECTION 4
CALIBRATION
WARNING
Please refer to the power supply manual for further information before performing
calibration procedures. Calibration must be performed by qualified personnel who
appropriately deal with attendant hazards. If calibration is not performed properly,
functional problems could arise, requiring that the supply be returned to the
factory.
4.1 Introduction
The DIA is calibrated to adjust internal signal levels to correspond to the expected supply output
signal levels. You must perform the calibration procedures if the power supply’s programming
or readback performance falls out of specification due to component aging drifts. Refer to your
power supply manual to find the required calibration interval. The DIA is calibrated for output
current programming, output overcurrent protection programming, voltage readback, and
current readback. There are 10 calibration factors (four measurement and six output).
The calibration procedures in the following sections are designed to be performed at ambient
temperature of 25°C +
5°C, after the unit has had a stable output and a stable load for at least
30 minutes.
The following test equipment is required in addition to the computer system to complete the
following calibration:
6-digit digital voltmeter (DVM)
current shunt rated for 110% of full output current
4.2 Setup for Calibration
STEP DESCRIPTION
1. Disconnect the power supply’s AC input power.
2. Disconnect the load from the power supply you want to calibrate.
M550292-03 (Programming) 4-1
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