Functions and Features
4 Functions and Features
This chapter describes in detail the functions and features of the instrument, in-
cluding the following sections:
♦ Output Function
♦ System-Related Operations
♦ Protection Function
♦ List Function
♦ Analogue Function (Ext-Program) (Optional)
IT-M3140 series power supplies have the following three operating modes:
• Fixed mode: This is the default mode when the power supply is powered on.
In fixed mode, the output parameters, protection function and such regular
operations all can be set.
• List mode: Once enter the list function setting interface, the instrument auto-
matically enters into the list mode. In list mode, the user can create a test
program made of multiple steps. The setting parameters in list mode are only
valid for list operation.
4.1 Output Function
SHOCK HAZARD, LETHAL VOLTAGES Many models generate
voltages greater than 600 VDC! Ensure that all instrument con-
nections are either insulated or covered using the safety covers
provided, so that no accidental contact with lethal voltages can
occur.
4.1.1 Set the Output Priority Mode
• Voltage priority mode keeps the output voltage constant. In voltage priority
mode, the output voltage should be set to the desired value. The output is
controlled by a constant-voltage feedback loop, which maintains the output
voltage at its programmed setting.
• Current priority mode keeps the output current constant. In current priority
mode, the output current should be set to the desired value. The output is
controlled by a constant-current feedback loop, which maintains the output
current at its programmed setting.
Copyright © Itech Electronic Co., Ltd.
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