User manual

FAQ
45
FAQ Q1. I pressed the panel lock key but the output still turns on/off. A1. The output key is not affected by the panel lock key operation, for ensuring safety. Q2. The CH3 overload indicator turned on – is this an error? A2. No, it simply means that the CH3 output current reached the maximum 3.0A and the operation mode turned from CV (constant voltage) to CC (constant current). You can continue using the power supply, although reducing the output load is recommended. Q3. The specifications does not match the real accuracies. A3. Make sure that the power supply is powered on for at least 30 minutes, within +20°C – +30°C. Q4. The internal memory is not recording the panel setting correctly – the output should be on. A4. The output is always stored or recalled as “off” to ensure safety. For more information, contact your local dealer or GWInstek at www.gwinstek.com.tw
/ [e-mail].
GPD-3303 Series User Manual
46 APPENDIX 23BFuse Replacement Steps
1. Take off the power cord and remove the fuse
socket using a minus driver.
2. Replace the fuse in the holder.
Rating
• 100V/120V:T6.3A/250V • 220V/230V:T3.15A/250V