Hoefer PS2A200 - Manual (Page 23)

Time parameters
There are four time options to choose from:
• The
Continuous run option delivers power until the
operator manually turns off the power supply.
• The Timed Hrs option delivers power for the set time.
• The Time & Hold (timed/hold) option delivers power
for the set time and then holds the voltage at 5 V to
minimize band diffusion in gradient gels until the
operator manually turns off the power supply.
• The Timed Vhrs option delivers a preset amount of
power measured in volt-hours (Vhrs) and then stops
all power output.
1
Select the time option
Place the cursor in the first field of the third line by
pressing the select arrow keys (left and right arrows
under the display).
Then press the adjust arrow keys (pointing up and down)
to select
Continuous run, Timed Hrs, Time & Hold 5V,
or Timed Vhrs displays in the field. In the Timed Hrs
and Timed Vhrs modes place the cursor under the Step
number field and select the step number (1–3) if you
desired more than one step.
As you scroll through the four options, a short beep
indicates each change.
2
Set the run duration
Timed Hrs and Time & Hold 5V — Place the cursor
under the digit in the h:min (00:00) field that you wish
to change by pressing the arrow keys. Select the value
of the digit by pressing the arrow keys. The (+) arrow
increases the value, and the (–) arrow decreases the
value. A short beep indicates that the change was regis-
tered. Repeat for each of the four active digits in this
field. The maximum value is 99 h and 59 min.
Timed Vhrs — Follow the same procedure as above,
placing the cursor under the digit in the Vhrs field.
The maximum value is 60000 volt-hours.
•
p14
#1 Protocol 1
Const Volt 200 V
Timed Hrs
Step 1:10:00 hrs
#1 Protocol 1
Const Volt 200 V
Time & Hold 5V
10:00 hrs
#1 Protocol 1
Const Volt 200 V
Timed VHrs
Step1: 10000 Vhrs