Aim-TTi EL302P Digital Bench Power Supply with RS-232

The Aim-TTi EL302P Digital Bench Power Supply is a precise, practical, and reliable linear PSU with a single channel and an isolated RS-232 interface for remote control. It has a maximum voltage range of 30V and a maximum current range of 2A; the Aim-TTi EL302P Digital Bench Power Supply is capable of providing a total power output of 60W.

Linear Regulation

The Aim-TTi EL302P Digital Bench Power Supply utilises linear regulation ensuring excellent line and load regulation, good transient response, and very low output noise.

Simple to Use

The Aim-TTi EL302P Digital Bench Power Supply’s analogue design ensures that voltage and current levels can be set quickly, easily, and without compromising accuracy. It includes coarse and fine voltage controls, as well as a logarithmic current control for setting low currents accurately.

Power-Down Memory

Upon shutting down the voltage, current and output-enable status are saved to the Aim-TTi EL302P Digital Bench Power Supply's memory. These settings are automatically restored upon power-up.

Constant Current and Constant Voltage Modes

The Aim-TTi EL302P Digital Bench Power Supply can be programmed to operate in either Constant Current or Constant Voltage mode with automatic crossover. The Aim-TTi EL302P Digital Bench Power Supply features a mode indicator that alerts the user when the PSU is in Constant Current mode.

DC Output On/ Off Switch

The user can view the preset voltage and current levels before connecting a load by using the Aim-TTi EL302P Digital Bench Power Supply’s DC output on/ off switch.

Voltage and Current Meters

Data is visible via the Aim-TTi EL302P Digital Bench Power Supply’s large, backlit display with voltage and current meters. The Aim-TTi EL302P Digital Bench Power Supply features a four-digit voltage meter with a resolution of 100mV and a three-digit current meter with a resolution of 10mA.

RS-232 Interface

The Aim-TTi EL302P Digital Bench Power Supply is a basic, low-cost programmable PSU with an isolated RS-232 interface enabling remote control of voltage, current, and output activation/ deactivation via a simple command set. This interface also provides a readback of metering values and operational status.

Silent Cooling

Finally, the Aim-TTi EL302P Digital Bench Power Supply's utilisation of convection cooling eliminates fan noise.

The Aim-TTi EL302P Digital Bench Power Supply is a versatile, economical, and simple programmable PSU with an isolated RS-232 interface.

Aim-TTi EL302P Digital Bench Power Supply Key Features

Precise, practical, and reliable linear PSU with a single-channel and isolated RS-232 interface
Voltage range: 0 to 30V
Current range: 0 to 2A
Maximum power output: 60W
Linear regulation
Excellent line and load regulation
Good transient response
Very low output noise
Analogue operation for setting voltage and current levels quickly, easily, and accurately
Coarse and fine voltage controls
Logarithmic current control for setting low currents more precisely
Power-down memory: saves voltage, current and output-enable status at shut down and automatically restores these settings upon start-up
Constant Current and Constant Voltage modes with automatic crossover and mode indication
DC output on/off switch: view preset voltage and current levels before connecting a load
Large, backlit display
Four-digit voltage meter with a 100mV resolution
Three-digit current meter with a 10mA resolution
Isolated RS-232 interface enables remote control of voltage, current, and output activation/ deactivation via a simple command set
RS-232 interface provides readback of metering values and operational status
Silent cooling: convection cooling eliminates fan noise
Versatile, economical, and simple programmable PSU with an isolated RS-232 interface

What’s Included?

Aim-TTi EL302P Digital Bench Power Supply with RS-232 – 60W, 1 Output

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)
	EL302P/-USB	0 to 30V; 0 to 2A	(60W nominal power)
Output Specifications
Output Setting & Control	Voltage Setting	By coarse and fine controls.
	Voltage Setting (EL302P/-USB)	By coarse and fine rotary encoders or RS-232 interface. Resolution 10mV
	Current Setting	By single logarithmic control
	Current Setting (EL305P/-USB)	By single rotary encoder or RS-232 interface. Resolution 10mA
	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
Display Type (EL302P/-USB)	4-digit meter for voltage and 3-digit meter for current.
Voltage Meter	Resolution	10mV
	Resolution (EL302P/-USB)	100mV
	Accuracy	0·3% of reading ± 3 digits
	Accuracy (EL302P/-USB)	0·3% of reading ± 1 digit,
Current Meter	Resolution	1mA
	Resolution (EL302P/-USB)	10mA
	Accuracy	0·5% of reading ± 3 digits
	Accuracy (EL302P/-USB)	0·6% of reading ± 1 digits
Note for EL302P/-USB	Note that in constant voltage mode, the meter will show the set voltage to a resolution of 10mV. However, the metering resolution is limited to 100mV when in constant current mode, and the last digit will be set to zero.
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.
Voltage Sensing EL302P/-USB	Voltage sensing is local only (i.e. no remote sense)
Power-down Memory EL320P/-USB	The power supply saves the voltage, current and output-enable status at power down and restores the settings at power up.
Remote Control EL302P/-USB	Isolation	Fully optoisolated from power supply output.
	Remote Functions	Set Voltage, Set Current, Set Output On/Off, Read Voltage, Read Current, Read On/Off, Read Mode (CV or CC).
	Setting Accuracy	Voltage 0.3% ±20mV. Current 0.6% ±20mA.
	Setting Resolution	Voltage 10mV. Current 10mA
	Readback Accuracy	Voltage 0.3% ±100mV. Current 0.6% ±20 mA.
	Readback Resolution	Voltage 100mV. Current 10mA
RS-232 Interface (EL302P)	Baud Rate	Variable from 600 baud to 9,600 baud
USB Interface (EL302P-USB)	Conformance	USB 2.0. Compatible with USB 1.x.

SKU	51153-3800
Manufacturer Part Code	51153-3800

Aim-TTi EL302P Digital Bench Power Supply with RS-232 – 60W, 1 Output