Topward 303AR, Руководство по эксплуатации

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3000 Series
8
3. Operation
3.1 Pre-installation
Before you turn on the power:
•
Check that the input voltage from your power source conforms to the voltage rating selected.
Refer to Input Voltage Selector in section 2.2. The tolerance is +10% of the indicated voltage
at 50/60 Hz.
•
Place this power supply in a well-ventillated area and do not block the ventillation holes. Poor
heat dissipation leads to overheating which may cause unstable operation and shorten the
service life of this equipment.
•
Be sure to use the correct fuse for your model. Refer to Table 1 for the type of fuse you
should use for a given voltage.
3.2 Setting the Output Voltage and Output Current
To set the output voltage and current, follow these steps:
1. Check that the total load to be connected does not exceed the maximum output voltage and
current of this power supply.
2. Open the circuit between the + and the - output terminals. Turn the voltage adjustment knob
clockwise to the desired output voltage rating.
3. Turn the current adjustment knob counterclockwise to get the minimum value.
4. Short the circuit between the + and the - output terminals. Note that the current rating of the
shorting wire should be greater than or equal to the required current.
5. Turn the current adjustment knob clockwise until the current indicator on the front panel
displays the required current rating.
6. Remove the shorting wire from the + and the - output terminals. The power supply returns to
the constant voltage mode and is ready to use.