Bio-Rad PowerPac™ HV High-Voltage Power Supply - Manual (Page 16)

3.3.2 RRCD: Rapid Resistance Change Detection
Preference Options Description
RRCd ON ON: Detection of a sudden resistance
Rapid Resistance Change (Default) change greater than 20% will cause an
detection OFF alarm to sound, the run to pause, and
error message code 09 to be displayed.
(See Section 6.3)
OFF: All resistance changes are ignored
and the run does not stop. When running
in this mode, the
symbol is displayed
on the run
screen as a reminder that this safety
feature has been turned off.
Note: Completion of certain
electrophoresis applications using cells,
such as the DCode
™ and Rotofor ® , may
require RRCd to be turned off.
3.3.3 Nld: No Load Detection
NLd
ON ON: A drop in the current below a set
No Load Detection (Default) threshold will cause the run to pause,
OFF an alarm to sound and the error code 01
to be displayed (see Section 6.3). For
example, if an electrophoresis cell is not
connected or the current is too low (less
than 0.02mA for Manual or Basic
Methods and 0.005mA for IEF methods).
OFF: All load changes are ignored and
the run does not stop. When running in
this mode, the
symbol is displayed
on the Run
screen as a reminder that this safety
feature has been turned off. Some IEF
applications may run at a
current lower than 0.005 mA, therefore,
the No Load detection may need to be
disabled in order to complete the run.
IRDA Port ON ON: Enables IR port communication.
Infrared (IR) port (Default)
communication OFF
Display CONTRAST HI Adjusts the display contrast to
(Default) accommodate different illumination
ME conditions.
LO HI = High contrast
ME = Medium contrast
LO = Low contrast
8
OFF: Disables IR port communication to
prevent communication interference with
other nearby IR devices, e.g., another
PowerPac power supply
PowerPac HV – Instruction Manual