Carefully check the connection between the machine and the load, confirm that the polarity is correct, and power on after the connection is reliable.
1. Press the power switch, the power indicator light is on, and there is a digital display on the panel.
2. Press the "set, Read" (preset, output) selection switch to make the instrument in the set (preset) working state, at this time the "set" indicator light is on. Press the "Voltage" key of the key switch, and the displayed value at this time is the preset voltage value.
In order to prevent damage caused by improper adjustment of the instrument, it is necessary to preset according to the following steps: If it needs to work in a stable voltage state, set the voltage knob to zero, that is, the preset voltage is zero. Preset the current knob and power knob to the required maximum value or place it at 200mA, 100W; if it is necessary to work in a steady current state, set the current knob to zero, and turn the other two knobs to the required maximum value (maximum voltage preset Do not put it to the maximum); if you need to stabilize the power it can be analogized. After presetting, put the key in the output position, at this time, the output display is zero.
3. Turn on the high-voltage switch, and the voltage knob is zero under constant voltage, then the constant voltage indicator light is on, and at this time, slowly adjust the voltage knob to the desired value. During the voltage adjustment process, the constant voltage light should always be kept on. If the other constant lights are on during the adjustment process , it means that the preset is unreasonable. Low voltage knob until the constant voltage light is on. Constant current, constant power and so on.
4. During the experiment, the output parameters of each stage can be observed through the key selection switch.
5. During the experiment, if you find that the constant value changes or you want to change the preset value, you can operate it without shutting down the machine . At this time, you should adjust it by observing the output value. Sometimes it is necessary to stop the test, the knob of the constant value should be adjusted to zero first, and then the high voltage switch should be turned off.
6. After the experiment, first turn off the "high voltage" switch, and then turn off the "power" switch.
7. To adjust the clock, first press the "stop alarm button", adjust the current time to the desired press the timing key, the displayed time is the timing time, and adjust the fast-forward and slow-forward keys Adjust to the desired timing, and then pop out the snooze button. When the timing time is consistent with the actual time, the buzzer will sound intermittently. If you don't need timing, you only need to press the "stop alarm button".
