Bio-Rad PowerPac™ Universal Power Supply - Manual (Page 14)

Step Procedure Description
4. Enter limits for the Use the soft keys to select a non-constant
non-constant parameter and the keypad to enter its value.
parameters If the run will be performed as an un-timed
run, skip to Step 6, otherwise, press the EDIT
key. Note: to change the constant value, press
its soft key and enter a new value.
ConstV:
Used to change the voltage
constant value.
LimitA: Used to change the maximum
default value for current limit.
LimitW: Used to change the maximum
default value for power limit.
5. Select the time mode Use the soft keys to select the time mode and
the keypad to enter the run time. Press the
EDIT key to return to Step 3, otherwise,
proceed to the next step.
HRS:
Run time is in units of hours.
VHOURS: Run time is in units of volt-hours.
UNTIMED: Run is continuous.
6. Start the run Press to start a run.
7. Monitor the run The run screen is used to monitor run
parameters or to pause a run. The elapsed
time versus the programmed time, voltage,
current and power values may be viewed from
the run screen.
Press the PAUSE soft key to edit the run
parameters (see Section 3.3.3) or to abort the
run. Press
to terminate the run.
3.3 Method Mode Operation
This section describes how to program and perform a run in Method mode. Method
mode operation is used to create and run single and multi-step methods. In
method mode, up to nine methods, each with up to nine steps may be
programmed, stored, or edited. Each of these methods may be transferred to or
from a PDA, through the PowerPac Universal IR port as described in Section 4.
3.3.1 Create and Run a New Method
This section describes how to create and run a new method.
Step Procedure Description
1. Setup the power supply Refer to Section 3.1 for instrument setup.
8
TIME: 00:00 HRS
EDIT TIME
UNTIMED
2500
500
mA
W
HRS
100 V
VHOURS
00:00/01:00 HRS
PAUSE
52
5
mA
W
100 V
RUN
TIME: UNTIMED
EDIT LIMITS
LIMITW
2500
500
mA
W
CONSTV
100 V
LIMIT A