Bio-Rad PowerPac™ Universal Power Supply User Manual

Page 26

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If a power failure occurs during a run the following screens will be displayed.

1.

Displayed if PFd = ON
MORE is displayed on the Run Completed
screen when a run ends that has had a
power failure.
Press the MORE soft key to display details
about the most recent power outage and
when power was restored.
Press the RERUN soft key to restart the run
Press the BACK soft key to return to the Run
Completed screen.
Press the EXIT soft key to go to the Method
List screen

2.

Displayed if PFd = OFF
This error screen is displayed if a run has
terminated due to a power failure.
Press RESET to return to the Home screen

5.2.3 Rapid Resistance Change Detection/No Load Detection

The Rapid Resistance Change detection/No Load detection (RRCd-NLDd) is used
to determine the instruments response due to a large change in resistance or the
absence of a load. See Section 3.1 for a description of how to set this parameter.

RRCd-NLDd = ON: Detection of sudden load changes or the absence of a
load is enabled. Load changes greater than 20% or 15 mA (whichever is
greater), or the absence of a load (current is less than 2 mA), will cause an
alarm to sound, and the run to pause (See Section 5.2.4, ERROR STOP 01
and 09).

RRCd-NLDd = OFF: Detection of sudden load changes or the absence of a
load is disabled. 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: This mode is used to complete electrophoresis application such as the
D-Code that require that Rapid Resistance Change detection be turned off (due to
possible fluctuations in current during a normal run), or applications such as
isoelectric focusing that require less than 2 mA current.

!

!

!

20

RUN COMPLETED AT:

05/27/03 12:35:56

200V 105mA 21W

Time: 00:01 Vh: 00002

RERUN

EXIT

MORE

AC POWER INTERRUPTED

AT: 05/27/03 12:35:00

RESTARTED RUN

AT: 05/27/03 12:35:07

RERUN

EXIT

BACK

ERROR STOP: CODE 07

RUN POWER FAILURE

RUN TERMINATED.

RESET WHEN READY.

RESET

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