Labnet Enduro E0303 Instruction Manual
Also see for Enduro E0303: Instruction manualManual
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11Viewing a Program1. Select the file number using the ▼▲ arrow keys when highlighted press the Modekey.2. Press the Mode key 3 more times to advance to the programming.3. If multiple steps use the Mode key to advance through the program to the next step.Editing a program1. When a file is selected the parameters can be edited by the Mode button2. When the parameter is selected, it will flash. Use the ▼▲ arrow keys to eitherincrease or decrease values.3. Press the Mode key to migrate to the next parameter.4. When the parameter is selected use the ▼▲ arrow keys to increase or decreasethe values.Choosing Limiting Parameter SettingsIntroductionThe ENDURO 250 Volt Power Supply is capable of operating at limiting Voltage, or limitingCurrent or limiting Watts. We recommend operating the ENDURO 250 Volt Power Supply atlimiting voltage for most applications. See below for more details.Voltage LimitingFor most electrophoresis methods resistance increases throughout the run. Limiting thevoltage provides the following advantages:• Current and power decrease throughout the run, providing an improving margin of safetyover time.• The same voltage setting can be used regardless of the number or thickness of gels beingelectrophoresed.Current LimitingDiscontinuous buffer systems and, to a lesser extent, continuous systems increase resistanceduring the run. If you use the current limiting setting on the ENDURO 250 Volt Power Supply,the voltage will increase as resistance increases to satisfy Ohm’s law (V=IR). If no voltage limitis set and a local fault condition occurs, such as a poor connection, very high local resistancemay cause the voltage to increase to the maximum capacity of the power supply. This maylead to local overheating and damage to the electrophoresis cell or create unsafe conditions.When operating under constant current conditions, set a voltage limit on the power supply at orslightly above the maximum expected voltage. |
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