The Aim-TTi EL302RT Digital Bench Power Supply is a triple-channel PSU with two main outputs and one variable voltage auxiliary output. Each of the main channels has a maximum power output of 130W, a voltage range of 0 to 30V, and a current range of 0 to 2A.
All of the Aim-TTi EL302RT Digital Bench Power Supply’s outputs are short-circuit-proof and protected against external voltages and reverse currents. The Aim-TTi EL302RT Digital Bench Power Supply’s main outputs are isolated and can be operated independently of one another.
In addition to the two main outputs, the Aim-TTi EL302RT Digital Bench Power Supply also includes an auxiliary channel; it is fully variable and has a voltage range of 1.5V to 5.0V and a fixed current limit of 2A. The auxiliary output’s set voltage can be measured at the push of a button using the Aim-TTi EL302RT Digital Bench Power Supply’s digital meters.
Unlike the two main outputs which use linear regulation, the Aim-TTi EL302RT Digital Bench Power Supply’s third auxiliary output uses switch-mode post-regulation.
Furthermore, the two main outputs can be wired in series or parallel to provide voltage, current, and power via a single channel. When wired in series or parallel the Aim-TTi EL302RT Digital Bench Power Supply can provide up to 60V or up to 4A.
Enabling the user to operate each of the isolated main outputs independently is their dedicated DC output on/off switches. The Aim-TTi EL302RT Digital Bench Power Supply’s DC output on/off switches allows the user to see the preset voltage and current levels for each channel before connecting a load.
As mentioned above, the Aim-TTi EL302RT Digital Bench Power Supply’s main channels utilise true linear regulation ensuring that they can provide the best possible performance. The Aim-TTi EL302RT Digital Bench Power Supply has excellent line and load regulation, good transient response, and very low output noise.
Furthermore, each of the main channels incorporates remote sense terminals which are essential for precise regulation of the load and true metering of the load. The remote sense terminals can be switched off and on as required; each channel includes a switch for this purpose.
Moreover, each output has its analogue controls for setting voltage and current levels quickly, easily, and precisely. The Aim-TTi EL302RT Digital Bench Power Supply’s outputs include coarse and fine voltage controls and a logarithmic current control for setting low currents accurately.
Each of the Aim-TTi EL302RT Digital Bench Power Supply’s channels can be set to operate in either Constant Current or Constant Voltage mode with automatic crossover. Each channel features a mode indicator that illuminates when the output is in Constant Current mode.
Data is indicated on the Aim-TTi EL302RT Digital Bench Power Supply’s large, backlit display with four-digit, fixed-resolution voltage, and current meters. Each output has its display and dedicated meters. The voltage and current meters’ fixed resolutions prevent readings from being misinterpreted. The Aim-TTi EL302RT Digital Bench Power Supply’s voltage meters have a fixed resolution of 10mV and the current meters have a fixed resolution of 1mA.
To ensure compliance with the safety regulations of most laboratories, the Aim-TTi EL302RT Digital Bench Power Supply features output terminals capable of accepting 4mm safety plugs with rigid insulating sleeves. These output terminals can also accept fork connectors and bare wires ensuring maximum connection flexibility.
Finally, the Aim-TTi EL302RT Digital Bench Power Supply utilises convection cooling, thereby eliminating fan noise.
The Aim-TTi EL302RT Digital Bench Power Supply is a triple-output PSU suitable for benchtop applications in laboratories.
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. |
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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. |
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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 |
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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; |
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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) |
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Weight | EL301R - 3.4kg; EL302R, EL302P, EL183R, EL561R - 4.4kg: EL155R, EL303R - 5.0kg; EL302RD, EL302RT - 7.5kg. |