This manual introduces the basic features of the PowerPac™ Basic power supply, including control features, setup and operation, maintenance and troubleshooting.
The PowerPac Basic (catalog number 164‑5050) is a laboratory power supply that delivers constant voltage or constant current for electrophoresis applications. It offers programmable output (10‑300 V, 4‑400 mA) with automatic crossover, timer control and safety features such as overload protection and no‑load detection.
This manual covers safety precautions, unpacking, control features, step‑by‑step setup and operation, maintenance procedures, fuse replacement, firmware version display, technical specifications, and warranty information. Users can follow the illustrated procedures to configure runs, adjust parameters, and troubleshoot common issues.
| Input Power (nominal) | 100–120/220–240 VAC, 50 or 60 Hz |
|---|---|
| Output Voltage | 10 V to 300 V, 1 V steps |
| Output Current | 4 mA to 400 mA, 1 mA steps |
| Maximum Power | 75 W |
| Voltage Accuracy | ± 2 % of reading or 3 V |
| Current Accuracy | ± 2 % of reading or 3 mA |
| Ripple | < 1 % @ 300 V, 70 W |
| Dimensions (L×W×H) | 25 cm × 21 cm × 8.5 cm |
| Weight | 1.1 kg |
| Fuse | 2.5 A, 250 V, 5 × 20 mm (Bio‑Rad part 900‑7283) |
Disconnect the power cord, remove the old fuse with a screwdriver, and insert a 2.5 A, 250 V, 5 × 20 mm fuse (Bio‑Rad part 900‑7283).
Hold down the constant‑parameter key while turning the power switch to the ON position; the firmware version will appear briefly on the display.
Maintain at least 6 cm of clearance around the unit and do not block the rear fan vents.
The PowerPac Basic is warranted for three years against defects in materials and workmanship.