APS-3320 DC Power Supply 30V / 20A 1 Channel

AKTAKOM APS-3320 is a single channel DC power supply with an adjustable current limit. APS-3320 provides accurate stable DC power with low noise.

APS-3320 regulated DC power supply (analog of QJE QJ3020E) is ideal for test benches, laboratories, schools and repair facilities. Multiturn voltage control knob helps user to accurately dial in precise voltage. It is easy to read digital outputs (voltage and current) on a large display accurately.

This instrument incorporates a cooling fan for reliable performance.

Push button switch allows user to connect and disconnect the load.

Features

• Four-wire (4-wire) connection scheme
• Attractive digital display shows voltage and current
• Cooling fan
• High precision voltage regulation
• Proqressive current regulation
• Dual terminal system: safety test style or expandable screw terminals
• Overtoad protection circuit
• Output polarity: positive or negative
• Rugged reinforced metal frame construction

Channels	1
Output voltage (V)	30
Output voltage accuracy	±(1% + 20 mV)
Output voltage display resolution	10 mV
Output current (A)	20
Output current accuracy	±(1% + 20 mA)
Output current display resolution	0.01 A
Output power	600 W
Ripple and Noise	5 mV
Load stability	±(1% + 10 mV)
Display	2 LED displays
Power supply	110 V / 220 V
Dimensions	10.4 x 5.5 x 14.2 in / 262 x 140 x 360 mm

Specifications

• Regulated Single Channel with Current Limit
• Input: 110/220VAC 60Hz
• Output: 0-30VDC @ 0-20A
• Rated Output Power: 600W
• SMD technology
• Digital display shows voltage and current with LEDs
• Cooling fan
• High precision voltage regulation
• Display resolution: 10mV (Voltage) / 10mA (Current)
• Ripple And Noise: 5mVrms
• Dimensions (WxHxD): 10.4x5.5x14.2in / 262x140x360mm
• Weight: 26lb / 12kg

Included accessories

• Pair of high power Cables with connectors

• Power Cord

• User Manual

Operation instructions

1. Press the power on/off button to turn power on. 
2. Adjust the voltage knob to set the desired voltage. (Voltage level is shown on the digital display). 
3. Adjust the current level pot with a small regular screwdriver to set the (maximum) desired current level. (The current of the power supply is set to be the maximum at the factory). 
4. Connecting a load to the output terminals and pressing the output switch will illuminate the output indicator light and the current output can be read on the digital display.

1. Voltage indication 2. Current indication 3. +S output port 4. -S output port 5. -Output port 6. +Output port 7. -Output terminal 8. +Output terminal 9. Power switch 10. Output light 11. Output switch 12. Voltage adjustment knob 13. Current adjustment pot 14. Chassis ground

Power supply to load four-wire connection method

The sampling terminals are used under the following conditions: if the load has a distance from the power supply, the sampling terminals may be used to compensate for the inherent when using voltage drop a longer power line.

Sampling terminals connection to compensate the voltage drop

Sampling connection diagram

Attention! Disconnect the installed S- and S+ shorting wires when using the sampling connections.

Frequently Asked Questions

How can I work in the current stabilization mode?

What instruction should I follow to work in the voltage stabilization mode?

Do AKTAKOM power supplies have short circuit protection?

May I use AKTAKOM power supplies to charge accumulators?

How can I work in the current stabilization mode?

If OUTPUT indicator is red than press LOAD button. In that case OUTPUT indicator should go out and the current indicator will display the set current value. By using VOLTAGE adjustment rotary switch set the required output voltage (at the same time nothing should be connected to the output terminals «+» and «-»). By using CURRENT rotary switch set the maximum allowable current value (current limit value) for your load. If in the operating mode the load resistance change will cause the excess of the specified current limit, the power supply will automatically switch to the current stabilization mode and the output voltage will proportionally fall. Connect the load to the power supply and press LOAD button. OUTPUT indicator should become red. Before you disconnect the load press LOAD button. OUTPUT indicator will go out. Before switching off the power supply, disconnect the load. Up

What instruction should I follow to work in the voltage stabilization mode?

If OUTPUT indicator is red than press LOAD button. In that case OUTPUT indicator should go out and the current indicator will display the set current value. Adjust VOLTAGE adjustment rotary switches in order to obtain the maximum allowable load voltage on the power supply output. If in the operating mode the load resistance change will cause the excess of the specified voltage limit, the power supply will automatically switch to the voltage stabilization mode with setting on terminals «+» and «-» of the preset voltage value limit, and the output current will proportionally fall. By using CURRENT rotary switch set the maximum allowable current value (current limit value) for your load. Connect the load to the power supply and press LOAD button. OUTPUT indicator should become red. Before you disconnect the load press LOAD button. OUTPUT indicator will go out. Before switching off the power supply, disconnect the load. Up

Do AKTAKOM power supplies have short circuit protection?

Yes they have. Almost all modern power supplies have two operation modes: voltage stabilization mode and current stabilization mode. In case of short circuit the power supply automatically switches from the output voltage stabilization mode to the output current stabilization mode, and the output voltage starts proportionally dropping. At the same time the current in the load connected to the power supply will be limited with the value set with the screwdriver slot used to adjust the output current value on the front panel of the power supply. For the best protection it is recommended to set a low current value. In case of short circuit the current in the connected load will be limited with the value set on the power supply. Up

May I use AKTAKOM power supplies to charge accumulators?

AKTAKOM power supplies can’t be used for accumulator charging since it may cause the accumulator breakage (recharge, electrolyte boiling, extra pressure of the internal gas which will lead to the accumulator explosion). Accumulators should be charged with the current source which controls the accumulator voltage and regulates the charging current accordingly. When the required accumulator voltage is achieved such type of source simply stops the charging process, its name is a charging device. Up

Fuente de Poder CD regulable con limite de corriente ajustable de una salida. Pantalla grande digital con indicador LED para mostrar voltios y amperios. Boton interruptor de salida y eliminación de carga. Control de multivuelta para el ajuste preciso del voltaje. Rizado RMS 5mV. Conectores en el panel frontal tipo "Banana" y regleta de salida para voltimetro de teledetección de la carga.

Características

• Entrada: 110 VAC 60 Hz
• Salida: 0-30VDC @ 0-20A
• Tecnología SMD
• Pantalla digital atractiva muestra de voltaje y corriente
• Ventilador de enfriamiento
• Alta precisión de regulación del voltaje
• Regulación Proqresiva de la Corriente
• Dos Sistemas de terminales: Banana con seguridad y de tornillos expandibles
• Protección de sobrecarga del circuito
• Polaridad de la salida: positivo o negativo
• Marco robusto con metal reforzado
• Dimensiones (AxHxL): 10.4 "x 5.5" x14.2 "(262x140x360 mm)
• Peso: 26 libras (12 Kg)