TTi EX4210R - Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 42V/10A Single

The new EX-R series has been extended by incorporating models from the best selling EX series. By adding four digit meters and switchable remote sensing, the EX-R series offers much higher precision whilst retaining the simplicity of operation which many bench-top power supply users prefer.

Six models are offered including single, dual and triple outputs and covering a power range of 175 watts up to 420 watts.
 

EX-R Series - Mixed-mode Regulated Precision Laboratory Power Supplies

DC output switches

Each main output has a DC on-off switch. This enables voltage and current settings to be viewed before the load is connected and allows multiple outputs to be controlled individually. Surprisingly, many power supplies omit this essential feature.

Constant voltage or constant current

Each main output has a DC on-off switch. This enables voltage and current settings to be viewed before the load is connected and allows multiple outputs to be controlled individually. Surprisingly, many power supplies omit this essential feature.

Simplicity in Use

EX-R series power supplies use classic analog controls for voltage and current. The large and bright displays have a fixed resolution to avoid confusion. Preset voltage and current levels are shown when the DC output switch is turned off. Remote sense is available when needed but is disabled by setting the switch to Local.

Single, Dual or Triple Outputs

The EX-R series includes four single output models plus one dual output and one triple output model. The EX354RD has two independent and isolated outputs each with a 0 to 35V, 0 to 4A capability and its own on-off switch. The outputs can be wired in either series or parallel to provide voltages up to 70 volts or currents up to 8 amps. All outputs are intrinsically short circuit proof, and are protected against external voltages and reverse currents.

Variable Voltage Auxiliary Output

The EX354RT incorporates a third output fully variable between 1.5V and 5.0V with a fixed current limit of 5A. The set voltage can be measured at the press of a button using the digital meters.

Higher Current and Higher Power

Single output versions of the EX-R series are available with an output current capability up to 20 amps and output power up to 420 watts. These higher current models have 10mA meter resolution.

The highest power versions (EX2020R and EX4210R) have fan assisted cooling using a low-noise brush-less dc fan with intelligent control. (All other models use fan-less convection cooling).
 

The EX752M and EX355P Bench DC Power Supplies

EX752M - Higher Voltage Multi-mode Dual

Output Voltages Up to 150V

The EX752M is a dual output 300 watt PSU with Multi-Mode capability. This enables it to operate as a dual power supply with two independent and isolated outputs, or as a single power supply of double the power.

As a dual, each output provides 0 to 75V at 0 to 2A (mode A). As a single, the output can be selected as either 0 to 75V at 0 to 4A (mode B) or 0 to 150V at 0 to 2A (mode C). In single modes, the unused half of the unit becomes completely inoperative and its displays are blanked.
 

EX355P/EX355P-USB: Operation via RS-232 or USB

The EX355P is a digitally controlled version of the EX355 with an isolated RS-232 interface. It offers a low-cost solution for a basic programmable PSU and will be sufficient for many applications where the sophistication and complexity of GPIB is not needed.

A simple command set allows remote control of voltage, current and output enable together with read-back of metering values and operational status. Local control is via three rotary encoders providing rapid and accurate setting of voltage and current during bench use. The EX355P-USB has similar functionality but is controlled via a USB interface.