Description
EX-R Series
Power, Precision, Simplicity
EX-R Series – mixed-mode regulated precision laboratory power supplies EX-R Series – Model Range Model O/Ps Voltage Current Power Aux. O/P EX1810R One 0 to 18V 0 to 10A 180W EX355R One 0 to 35V 0 to 5A 175W EX2020R One 0 to 20V 0 to 20A 400W EX4210R One 0 to 42V 0 to 10A 420W EX354RD Two 0 to 35V 0 to 4A 280W EX354RT Three 0 to 35V 0 to 4A 305W 1.5 – 5V @5A Related Models EX752M Two* 0 to 75V 0 to 2A 300W * or single output of 75V/4A or 150V/2A EX355P 35V/5A model with RS-232 interface 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.
Model |
Description |
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|---|---|---|---|
EX1810R |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 18V/10A Single |
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EX355R |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 35V/5A Single Output |
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EX2020R |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 20V/20A Single |
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EX4210R |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 42V/10A Single |
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EX354RD |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls Dual Output 2 x 35V/4A |
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EX354RT |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 2 x 35V/4A plus 1.5-5V/5A Triple Output |
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EX355P |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 35V/5A Single Output, RS-232 |
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EX355P-USB |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls 35V/5A Single Output, USB |
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EX752M |
Bench DC Power Supply, Mixed-mode Regulation, Analog Controls Dual Output 2 x 75V/2A |
Mixed-mode regulation
The EX-R series combines high frequency switch-mode pre-regulation with linear post-regulation to provide performance that comes close to that of an all-linear design. Excellent line and load regulation is matched by low noise and good transient response.
Four digit meters
The EX-R series incorporates separate voltage and current meters on each main output with a resolution of 10mV and 1mA (10mA on higher current models). The fixed resolution avoids the misinterpretation of readings that can occur with auto-ranging 3 or 3½ digit meters where the decimal point position moves as the reading changes.
Remote Sensing
Each main output incorporates remote sense terminals that can be enabled or disabled at the flick of a switch. Remote sensing is essential for maintaining precise regulation at the load and true metering of the load voltage. Many other power supplies omit remote sense, and quote regulation figures that could never be achieved in a practice. N.B. A 2 metre length of a 24/0.2 wire pair has a resistance of around 0.1 W. For a 5V load drawing 3A the metering error without remote sense would be 0.3V and the effective full current load regulation would be around 6%, against a quoted figure of perhaps 0.01% for the power supply itself.
