To stop a run in progress, press the Run key or the gray ON/OFF key. The display will change to "OFF" signifying that the output is no longer energized. Pressing run again resumes the run from the previous point (i.e. for a timed run). Pressing any other key will return to setup mode in either constant voltage or constant current mode as appropriate.
During a run, the display will automatically cycle between voltage, current, and time displays. Voltage and current is displayed as actually measured by the FB300. When displaying the controlled setpoint, i.e. voltage for constant voltage control, the arrow keys can be used to modify the setpoint. The limit parameter cannot be changed during a run. The time parameter displays elapsed time for an untimed run, and time left for a timed run.
Constant Voltage Operations
Press the constant key (labeled K) until the LED indicating "Volts" is illuminated. Each time the constant key is pressed, the FB300 will display the last saved setpoint value for that particular mode. Use the UP and DOWN arrow keys to change the setpoint to the desired value
The limit parameter, in this case current, is normally set to the power supply maximum value of 400 mA. To set a lower limit value, press the Set key until the LED indicating "mAmps" is illuminated. Use the UP and DOWN arrow keys to change the limit to the desired value
In addition, the FB300 will never exceed the maximum power output specification of 75W. When starting a run, the power supply calculates a maximum limit parameter, above which the power supply maximum power output rating would be exceeded. If this value is lower than the limit setpoint entered, the FB300 will use this lower limit parameter.
Constant Current Operations
Press the constant key (labeled K) until the LED indicating "Amps" is illuminated. Each time the constant key is pressed, the FB300 will display the last saved setpoint value for that particular mode. Use the UP and DOWN arrow keys to change the setpoint to the desired value
The limit parameter, in this case voltage, is normally set to the power supply maximum value of 300 volts. To set a lower limit value, press the Set key until the LED indicating "Volts" is illuminated. Use the UP and DOWN arrow keys to change the limit to the desired value
In addition, the FB300 will never exceed the maximum power output specification of 75W. When starting a run, the power supply calculates a maximum limit parameter, above which the power supply maximum power output rating would be exceeded. If this value is lower than the limit setpoint entered, the FB300 will use this lower limit parameter.
Timed Operations
It is possible to enter an amount of time for the power supply to provide power, after which it will automatically shut off. Use this feature for timed runs.
Press the Set key until the LED indicating "Time" is illuminated. Use the UP and DOWN arrow keys to change the time duration to the desired value
When running a timed run, the time parameter displays the time remaining in the run. When running a
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