Aim-TTi EX2020R Digital Bench Power Supply

Description

The high-power Aim-TTi EX2020R Digital Bench Power Supply is a single-output, benchtop, laboratory PSU capable of supplying a maximum power output of 400W. It has a voltage output range of 0 to 20V and a current output range of 0 to 20A.

Constant Voltage or Constant Current

The Aim-TTi EX2020R Digital Bench Power Supply’s output can operate in either Constant Voltage or Constant Current mode; it features a mode indicator and automatic crossover.

Simple-To-Use

Voltage levels can be set quickly and precisely using coarse and fine analogue controls. The Aim-TTi EX2020R Digital Bench Power Supply’s logarithmic current control ensures low currents can be set accurately.

DC On/Off Switch

Preset currents and voltages can be viewed before connecting the load using the output’s DC On/Off switch.

Four-Digit Display

Voltage and current data are indicated on the Aim-TTi EX2020R Digital Bench Power Supply’s large, bright, four-digit display. It has a fixed resolution of 10mV and 10mA, improving precision and preventing misinterpretation of readings.

Remote Sensing

In addition to a dedicated DC On/Off switch, the Aim-TTi EX2020R Digital Bench Power Supply’s output includes remote sense terminals with a dedicated switch enabling activation and deactivation: when the switch is set to Local, the remote sense terminals are deactivated.

The Aim-TTi EX2020R Digital Bench Power Supply’s remote sense terminals ensure true metering of the load voltage and precise regulation at the load.

Mixed-Mode Regulation

Similarly, the Aim-TTi EX2020R Digital Bench Power Supply’s Mixed-Mode Regulation equips it with excellent line and load regulation, low noise, and good transient response. It also ensures that the Aim-TTi EX2020R Digital Bench Power Supply can provide performance comparable to that of a PSU with an all-linear design; to this end, Mixed-Mode Regulation combines high-frequency, switch-mode regulation, and linear post-regulation.

Output

To ensure compliance with the safety regulations of most laboratories, the Aim-TTi EX2020R Digital Bench Power Supply’s output terminal has been designed to accept 4mm safety plugs with rigid insulating sleeves. However, this terminal can also accept fork connections and bare wires, ensuring maximum flexibility.

Furthermore, the Aim-TTi EX2020R Digital Bench Power Supply’s output is intrinsically short-circuit-proof and is protected against external voltages and reverse currents.

Quiet Cooling

The Aim-TTi EX2020R Digital Bench Power Supply features fan-assisted cooling. It utilises a low-noise, brushless DC fan with intelligent control.

The Aim-TTi EX2020R Digital Bench Power Supply is a high-power, precise and practical PSU optimised for benchtop, and laboratory applications.

Aim-TTi EX2020R Digital Bench Power Supply Key Features

Single-output, benchtop, laboratory PSU
Maximum power output: 400W
Voltage output range: 0 to 20V
Current output range: 0 to 20A
Constant Voltage and Constant Current modes with automatic crossover and mode indication
Coarse and fine analogue controls for setting voltage levels accurately and quickly
Logarithmic current control for setting low currents precisely
DC On/Off Switch: view preset currents and voltages before connecting the load
Large, backlit, four-digit display
Fixed resolution: 10mV and 10mA
Fixed resolution improves precision and prevents misinterpretation
Remote sense terminals with a dedicated switch for activation and deactivation
Remote sense terminals ensure true metering of the load voltage and precise regulation at the load
Mixed-Mode Regulation provides excellent line and load regulation, low noise, and good transient response
Mixed-Mode Regulation provides a performance comparable to that of PSUs with an all-linear design
Mixed-Mode Regulation: combines high-frequency, switch-mode regulation and linear post-regulation
Output terminal designed to accept 4mm safety plugs with rigid insulating sleeves, fork connections, and bare wires
The output is intrinsically short-circuit-proof
The output is protected against external voltages and reverse currents
Fan-assisted cooling: low-noise, brushless DC fan with intelligent control
High-power, precise and practical PSU optimised for benchtop, and laboratory applications

What’s Included?

Aim-TTi EX2020R Digital Bench Power Supply – 400W, 1 Output

Tech Specs

Aim-TTi EX-R Digital Bench Power Supplies Technical Specifications

EX-R Model Range
Voltage/Current Levels	EX355R	0 to >35V; 0 to >5A	(175W nominal power)
	EX1810R	0 to >18V; 0 to >10A	(180W nominal power)
	EX2020R	0 to >20V; 0 to >20A	(400W nominal power)
	EX4210R	0 to >42V; 0 to >10A	(420W nominal power)
	EX354RD	2 x (0 to >35V; 0 to >4A)	(280W nominal power
	EX354RT	2 x (0 to >35V; 0 to >4A) plus <1.5 to >5.0V @ 5A	(305W 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 <2mV rms, <10mV pk-pk (EX355R, EX354RD, EX354RT)
		Typically <2mV rms, <20mV pk-pk (EX1810R, EX2020R, EX4210R) (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	<200µs to within 50mV of the setting for a 5% to 95% load change.
	Temp. Coefficient	Voltage: typically <100ppm /°C.
Output Protection	Outputs will withstand forward voltages up to 40V (EX355R, EX354RD, & EX354RT); 22V (EX1810R); 25V (EX2020R); 48V (EX4210R). 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 (EX355R, EX354RD, EX354RT)	Resolution	1mA
	Accuracy	0·5% of reading ± 3 digits
Current Meter (EX1810R, EX2020R, EX4210R)	Resolution	10mA
	Accuracy	0·6% of reading ± 3 digits
Auxiliary Output (EX354RT only)
Voltage	Variable <1.5V to >5V by front panel control.
Meter accuracy	0.3% ± 4 digits.
Current limit	5A minimum
Load regulation	<0.5% for 90% load change.
Line regulation	<0.1% for 10% line voltage change
Ripple & Noise	Typically <2mVrms, <10mVpk-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	EX354RD, EX354RT - 110V to 240V 50/60Hz (universal input); Other Models - 230V AC ± 10% 50/60Hz; 115V to order. Installation Category II
	VA Ratings	EX810R, EX355R - 400VA; EX354RD, EX354RT - 500VA EX2020R, EX4210R - 800VA
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	EX1810R, EX355R, EX354RD, EX354RT - fan-less convection cooling; EX2020R, EX4210R - fan assisted using low-noise brushless dc fan.
Safety & EMC	Safety	Complies with EN61010-1
	EMC	Complies with EN61326
Physical	Size	Single output models - 140x160x320 mm (WxHxD). Dual and triple output models - 260x160x320 mm (WxHxD)
	Weight	EX810R, EX355R - 3.0kg; EX2020R, EX4210R - 3.6kg EX354RD, EX354RT - 4.3kg