Aim-TTi EL303R Digital Bench Power Supply

Description

The Aim-TTi EL303R Digital Bench Power Supply is a single-channel PSU utilising true linear regulation to provide the best possible performance. In addition to this, the Aim-TTi EL303R Digital Bench Power Supply includes switchable remote sensing and four-digit voltage and current meters with fixed resolutions for greater precision. However, it retains the easy-to-use analogue design of its predecessors: the Aim-TTi EL-Series of Digital Bench Power Supplies.

This model can provide a maximum power output of 90W. The Aim-TTi EL303R Digital Bench Power Supply has a voltage range of 0 to 30V and a current range of 0 to 3A.

Constant Current and Constant Voltage Modes

The Aim-TTi EL303R Digital Bench Power Supply’s single output can be programmed to operate in either Constant Voltage or Constant Current mode with automatic crossover. The mode indicator will illuminate when the Aim-TTi EL303R Digital Bench Power Supply is in Constant Current mode.

DC Output On/Off Switch

The user can view preset voltage and current levels before connecting a load using the Aim-TTi EL303R Digital Bench Power Supply’s DC Output On/Off Switch.

Simple to Use

The Aim-TTi EL303R Digital Bench Power Supply features analogue controls to enable the fast, easy, and accurate configuration of voltage and current levels. The Aim-TTi EL303R Digital Bench Power Supply features coarse and fine voltage controls and a logarithmic current control which enables low current levels to be set accurately.

Four-Digit Meters

Voltage and current information are viewable via the Aim-TTi EL303R Digital Bench Power Supply’s large, backlit display. To prevent misinterpretation of measurements, the Aim-TTi EL303R Digital Bench Power Supply is equipped with four-digit, fixed-resolution voltage, and current meters. The Aim-TTi EL303R Digital Bench Power Supply’s voltage meter has a fixed resolution of 10mV and the current meter has a fixed resolution of 1mA.

Remote Sensing

Remote sense terminals are essential for ensuring precise regulation of the load and true metering of the load. The Aim-TTi EL303R Digital Bench Power Supply incorporates remote sense terminals into its output; they can be switched on and off as required.

Linear Regulation

As previously mentioned, the Aim-TTi EL303R Digital Bench Power Supply utilises true linear regulation to provide high performance. As a result, the Aim-TTi EL303R Digital Bench Power Supply is equipped with excellent line and load regulation, good transient response, and very low output noise.

Silent Cooling

Moreover, to eliminate fan noise the Aim-TTi EL303R Digital Bench Power Supply utilises convection cooling.

Safety Binding-Post Terminals

Finally, to ensure compliance with a majority of laboratories’ safety regulations, as well as provide maximum connection flexibility, the Aim-TTi EL303R Digital Bench Power Supply’s output terminals accept 4mm safety plugs with rigid insulating sleeves, as well as bare wires and fork connectors.

The Aim-TTi EL303R Digital Bench Power Supply is a high-performance, practical, and precise PSU.

Aim-TTi EL303R Digital Bench Power Supply Key Features

Single-channel PSU utilising linear regulation to provide the best possible performance
Maximum power output: 90W
Voltage range: 0 to 30V
Current range: 0 to 3A
Constant Current and Constant Voltage mode with automatic crossover and mode indication
DC output on/off switch: view preset voltage and current levels before connecting a load
Analogue controls for fast, easy, and accurate configuration of voltage and current levels
Coarse and fine voltage controls
Logarithmic current control for setting low currents accurately
Large, backlit display
Four-digit voltage and current meters with fixed resolutions
Fixed resolutions prevent misinterpretation of results
Voltage meter resolution: 10mV
Current meter resolution: 1mA
Remote sense terminals for precise regulation of the load and true metering of the load
Remote sense terminals are incorporated into the output
Remote sense terminals can be switched on and off as required
True linear regulation provides high performance
Excellent line and load regulation
Good transient response
Low output noise
Silent cooling: convection cooling eliminates fan noise
Output terminals accept 4mm safety plugs with rigid insulating sleeves, fork connectors, and bare wires
Output terminals are compliant with a majority of laboratories’ safety regulations
Output terminals ensure maximum connection flexibility
High-performance, practical, and precise PSU

What’s Included?

Aim-TTi EL303R Digital Bench Power Supply – 90W, 1 Output

Tech Specs

Aim-TTi EL-R Series of Digital Bench Power Supplies Technical Specifications

EX-R Model Range
Voltage/Current Levels	EL301R	0 to >30V; 0 to >1A	(30W nominal power)
	EL183R	0 to >18V; 0 to >3.3A	(60W nominal power)
	EL302R	0 to >30V; 0 to >2A	(60W nominal power)
	EL561R	0 to >56V; 0 to >1.1A	(60W nominal power)
	EL155R	0 to >15V; 0 to >5A	(75W nominal power
	EL303R	0 to >30V; 0 to >3A	(90W nominal power
	EL302RD	2 x (0 to >30V; 0 to >2A)	(120W nominal power
	EL302RT	2 x (0 to >30V; 0 to >2A plus 1.5 to 5.0V @ 2A	(130W nominal power)
Output Specifications
Output Setting & Control	Voltage Setting	By coarse and fine controls.
	Current Setting	By single logarithmic control
	Output Mode	Constant voltage or constant current with automatic cross-over. CC indicator lit in constant current mode.
	Output Switch	Electronic, non-isolating. Preset voltage and current limit are displayed when the Output is off. On state indicated by LED.
Output Performance	Ripple & Noise	Typically <1mV rms, (CV mode, 20MHz bandwidth)
	Load Regulation	<0·01% of maximum output for a 90% load change (using remote sense).
	Line Regulation	<0·01% of maximum output for 10% line change
	Transient Response	<50µs to within 50mV of setting for a 5% to 95% load change
	Temp. Coefficient	Voltage: typically <100ppm /°C.
Output Protection	Output will withstand forward voltages of up to 20V above rated output voltage. Reverse protection by diode clamp for currents to 3A.
Output Connections	Output Terminals	Universal 4mm safety binding posts on 19mm (0·75”) spacing
	Note	Terminals can accept fixed shroud 4mm plugs, standard 4mm plugs, fork terminals, and bare wires
Remote Sense	Sense Selection	Voltage sensing is selected as Local or Remote by the front panel switch.
	Sense Terminals	Sprung loaded screw-less terminals
Meter Specifications
Display Type	Dual 4-digit meters, 14mm (0·56”) LED
Voltage Meter	Resolution	10mV
	Accuracy	0·3% of reading ± 3 digits
Current Meter	Resolution	1mA
	Accuracy	0·5% of reading ± 3 digits
Auxiliary Output (EL302RT only)
Voltage	Variable <1.5V to >5V by front panel control.
Meter accuracy	0.3% ± 4 digits.
Current limit	2A minimum
Load regulation	<3% for 90% load change
Line regulation	<0.2% for 10% line voltage change
Ripple & Noise	Typically <5mVrms, <15mVpk-pk (20MHz bandwidth)
Output Protection	Output will withstand up to 7V forward voltage. Diode clamp reverse protection for currents up to 3A
Output Terminals	Universal 4mm safety binding posts on 19mm (0·75”) spacing
Status Indication	UNREG lamp
General Specifications
Input	AC Input	230V AC or 115V AC ± 10%, 50/60Hz. Installation Category II
	VA Ratings	EL301R - 85 VA; EL302R, EL302P, EL183R, EL561R - 160VA; EL155R, EL303R - 250VA; EL302RD, EL302RT - 320VA
Temperature & Environmental	Operating Range	+5ºC to +40ºC, 20% to 80% RH
	Storage Range	-40ºC to + 70ºC
	Environmental	Indoor use at altitudes up to 2000m, Pollution Degree 2
	Cooling	Silent fan-less convection cooling.
Safety & EMC	Safety	Complies with EN61010-1
	EMC	Complies with EN61326
Physical	Size	Single output models - 140x160x320 mm (WxHxD). Dual and triple output models - 260x160x295 mm (WxHxD)
	Weight	EL301R - 3.4kg; EL302R, EL302P, EL183R, EL561R - 4.4kg: EL155R, EL303R - 5.0kg; EL302RD, EL302RT - 7.5kg.