Manual for PD18-10/10D

Manual for PD18-10/10D

Brand: Generic

Category: Power Supply

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 7:13 p.m.

Warranty Information

None

1. **Constant-Voltage Operation:** - Set the desired voltage using the VOLTAGE knob. - Turn on the OUTPUT switch to apply the voltage. - A current limit can be set using the CURRENT knob. 2. **Constant-Current Operation:** - Set the desired current using the CURRENT knob. - Set a voltage limit using the VOLTAGE knob (acts as OVP). - Turn on the OUTPUT switch to apply the current. 3. **Checking Voltage and Current:** - Depress the V/I CHECK switch to view preset or output values. 4. **Overvoltage Protection (OVP):** - Set the OVP level using the OVP adjuster (12) while holding the OVP CHECK switch (11). 5. **Remote Sensing:** - Connect the remote sensing terminals (+S, -S) to the load to compensate for voltage drops. 6. **Series/Parallel Connection:** - Units can be connected in series for higher voltage or in parallel for higher current. 7. **Battery Charging/Discharging:** - The unit can charge or discharge batteries/capacitors in constant-current mode.

Troubleshooting and error codes

Symptom Check Cause
Power switch does not turn on. 1. Power lamp not lit.
2. Short bar coming off.
3. Overvoltage protection worked.
Power cord disconnected or connected defectively.
Input switch defective.
Input fuse blown.
Rear-panel short bar disconnected or loose.
Voltage set too low.
Output voltage is zero or low. 1. Short bar coming off.
2. Constant-voltage/current lamps do not switch.
3. Ammeter deflects with output off.
4. Oscillating
Short bar installed defectively.
Circuit defective.
Output diode broken.
Oscillation by remote sensing.
Output is excessive. 1. Short bar coming off.
2. Output voltage/current do not fall.
Short bars 1-2 and 6-7 come off.
Power transistor or control circuit defective.
Output is not steady. 1. Short bar coming off.
2. Input voltage wrong.
3. Oscillating
4. Sensing terminal floating.
5. Strong magnetic/electric fields nearby.
6. Other
Short bar installed defectively.
Out of the rated input voltage range.
Oscillation by special load.
Proper connection of sensing terminal.
Keep away from oscillation sources.
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