Bio-Rad PowerPac™ Universal Power Supply User Manual

Page 10

Section 2

Control features

Fig. 4. Front Panel.

Key Description

Run/Pause

Starts or pauses a run. When paused, the run parameters for the
current or subsequent step(s) may be edited. The modified
method may be stored to permanent memory by pressing SAVE at
the end of the run.

Stop/Home

Terminates the run in progress and displays the final run
parameters, or if no run is active, changes the display to the Home
screen.

Note: If a method has been edited during a run, SAVE must be
pressed at the end of the run to save the changes.

Setup

Used to set the PowerPac Universal default settings such as:
power failure detection, rapid resistance change detection, no load
detection as well as clock, contrast and key chirp settings (see
Section 3.1).

EDIT

Toggles soft key assignments between those used to set the run
mode (constant voltage, constant current or constant power), run
limits (voltage, current or power) and time mode (hours, volt-hours
or untimed).

Arrow Keys

Used to scroll through method list or method protocol. An
asterisk (*) is used to identify the selected method or step.

Deletes alphanumeric characters from a parameter value or
method name, or restores previous numeric value.

Alpha-numeric

Used to enter parameter values and method names. When

keypad

method names are entered, the manner in which keys are pressed
determines the characters entered and their placement. Rapid
repetitive strokes on a single key cause the character displayed at
the cursor position to toggle between those associated with the
key (i.e. a®b®c®2®A®B®C®2). The cursor position advances
each time a different key is pressed or when there is a pause
between strokes of a single key.

Soft Keys

The commands on the LCD screen immediately above the soft
keys assign their functionality.

CLEAR ENTRY KEY

ALPHANUMERIC
KEYPAD

ARROW KEYS

SETUP KEY

SOFT KEYS

EDIT KEY

STOP/HOME KEY

IR PORT

RUN/PAUSE KEY