VWR 700-0450 Manuel D'instructions page 13

Power Limiting
Watts is a function of voltage and current W=IV. If voltage is increased watts will also
be increased depending on the gel system, R should be a constant. Watts will be
reflected by the heat generated during a gel run. The power limiting function may be
used when running sequencing gels to remove the APS from the wells and to heat the
gel to an optimal temperature for DNA separations.
The 300V Hi Amperage Power Supply is designed to operate under two modes,
Constant Voltage Mode or Constant Current Mode, depending upon your
electrophoresis application.
Use the Constant Voltage / Current Mode for applications that require only one
specific voltage limit or current limit during the entire duration of electrophoresis.
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