Firma:              BioRad

Modell:            Powerpac 200

Kommentar:   Dokumente engl.

PowerPac power supplies provide constant voltage or constant current to instruments used in electrophore­sis and blotting. The PowerPacs are capable of the following adjustable outputs:

PowerPac 200

Voltage output:             Adjustable from 5 to 200 volts in increments of 1 volt.

Current output:            Adjustable from 0.01 to 2.00 Amps (2000 mA) in increments of 0.01 A.

Power output:              200 watts (maximum)

PowerPac 300

Voltage output:             Adjustable from 10 to 300 volts in increments of 1 volt.

Current output:            Adjustable from 4 to 400 milliAmps (mA) in increments of 1 mA.

Power output:              75 watts (maximum)

Up to four electrophoresis cells can be connected in parallel to the power supply.

The PowerPacs are programmed with default limit values for voltage and current. These are the values which are available when the unit first is turned on. These values may be changed for each application.

The power supplies operate at the values specified for the constant parameter. However, to prevent dam­age to your electrophoresis cell, both PowerPacs provide automatic crossover to constant current or con­stant voltage, depending on which set value is first reached. When the set limit of the non-constant parame­ter is reached, and the power capability of the unit is not exceeded, the power supply will switch, making the non-constant parameter the new constant parameter.

The PowerPac 200 and PowerPac 300 power supplies offer a number of features, including the following:

•            Constant voltage or constant current operation with automatic crossover.

•            Timer control.

•            Viewing angle adjustment.

•            3-digit LED display.

•            Stackable case.

•            Automatic detection of no-load conditions and rapid changes in resistance.

•            Automatic completion of a run interrupted by a power failure, when user enabled.

•            Ground leak detection (PowerPac 200 only).

Specifications

Note: All specifications subject to change without notice.

Input Power

100/120 V model:               90 - 132 VAC, 47 Hz - 63 Hz

220/240 V model:               198 - 264 VAC, 47 Hz - 63 Hz

Fuses

100/120 V units:                  PowerPac 200: 5 A, 125 V, 5mm x 20mm, Type T

                                           PowerPac 300: 2.5 A, 125 V, 5mm x 20mm, Type T

220/240 V units:                  PowerPac 200: 2.5 A, 250 V, 5mm x 20mm, Type T

                                           PowerPac 300: 2.5 A, 250 V, 5mm x 20 mm, Type T

Input Power Cord:              3-wire; grounded

Output (Programmable)     Constant voltage, constant current; with automatic crossover Voltage:           PowerPac 200: 5 V to 200 V, fully adjustable in 1 V steps         PowerPac 300: 10 V to 300 V, fully adjustable in 1 V steps Current:                              PowerPac 200: 0.01 A to 2.00 A, fully adjustable in .01 A steps          PowerPac 300: 5 mA to 400 mA, fully adjustable in 1 mA steps Power (max.):           PowerPac 200: 200 W

                                           PowerPac 300: 75 W

Terminals:                          4-pair recessed female banana jacks, floating in parallel

Timer Control:                    001 to 999 minutes, fully adjustable

Resolution

Ripple:                                PowerPac 200: ±1 % @ 200 V and 200 W

                                           PowerPac 300: ±1 % @ 300 V and 75 W

Line Regulation:                  PowerPac 200: ±0.5% @ 200 V and 180 W

                                               from 90 - 132 V AC or 198 - 264 V AC

                                           PowerPac 300: ±1 % @ 300 V and 75. W

                                               from 90 - 132 V AC or 198 - 264 V AC

Load Regulation:                PowerPac 200: ±1 % @ 200 V for a 50% change in output load         PowerPac 300: ±1 % @ 300 V for a 50% change in output load Drift:         PowerPac 200: ±0.5% after 30 min. warm up at 200 V and 180 W                                       PowerPac 300: ±1 % after 30 min. warm up at 300 V and 75 W

Noise:                                 PowerPac 200: 30 dBA

                                           PowerPac 300: 27 dBA

Readout Stability

Volts:                                   PowerPac 200: ±1 V

                                           PowerPac 300: ±1V

Current:                              PowerPac 200: ±10 mA

                                           PowerPac 300: ±1 mA

Safety Features

No load detection:               Indicated by error message on LED display

Sudden load change

detection:                            Indicated by error message on LED display

Overload/short

circuit protection:                Indicated by error message on LED display; fuse an both hot and      neutral

Ground Leak Detection:     Indicated by error message on LED display if the ground current is (PowerPac 200 only)                                            greater than 500 pA.

Auto power up

after power failure:              User-selectable, setup values maintained

Safety

Compliance:                       I.E.C. 1010

EMI                                      Conforms to CE standards for Emissions and Immunity;

                                           tested only at 220 V. See Declaration of Conformity for ^- details. .        TUV EMC certification.

Display Functions:              3-digit LED displays voltage, current, time

Function Modes:                 Constant voltage, constant current, timer

                                           User-selectable automatic power-up after power failure

Environmental

Operating Temp.:               0 - 40°C

Humidity:                             0 - 95%, in the absence of condensation

Dimensions:                       29 (L) x 21 (W) x 8 (H) cm.

                                           Unit is stackable

Weight:                               PowerPac 200: 2.4 kg

                                           PowerPac 300: 1.8 kg