The Aim-TTi EX355R Digital Bench Power Supply is a single-output benchtop PSU optimised for use in laboratories. It has a maximum power output of 175W, a voltage output range of 0 to 35V, and a current output range of 0 to 5A.
The Aim-TTi EX355R Digital Bench Power Supply combines high-frequency switch-mode regulation and linear post-regulation to provide a performance similar to that of PSUs with an all-linear design. As a result, the Aim-TTi EX355R Digital Bench Power Supply has excellent line and load regulation, low noise, and good transient response.
The design of the output terminal ensures that the Aim-TTi EX355R Digital Bench Power Supply is compliant with common laboratory safety standards as it can accept 4mm safety plugs with rigid insulating sleeves. However, this does not compromise the Aim-TTi EX355R Digital Bench Power Supply’s flexibility as it can also accept fork connectors and bare wires.
In addition to this, the Aim-TTi EX355R Digital Bench Power Supply’s output is intrinsically short-circuit proof and is protected against external voltages and reverse currents.
Moreover, the Aim-TTi EX355R Digital Bench Power Supply’s output incorporates remote sense terminals that can be enabled and disabled using a dedicated switch: when the switch is set to Local, remote sensing is disabled.
Remote sensing terminals are essential for ensuring precise regulation of the load and true metering of the load voltage.
Additionally, the Aim-TTi EX355R Digital Bench Power Supply features a DC On/ Off switch that allows the user to view preset currents and voltages before connecting the load.
The Aim-TTi EX355R Digital Bench Power Supply’s output can be configured to operate in either Constant Voltage or Constant Current mode. It is equipped with a mode indicator and automatic crossover.
Fine and coarse analogue controls allow voltage levels to be set quickly and precisely. The Aim-TTi EX355R Digital Bench Power Supply’s logarithmic current control ensures that low currents can be set accurately.
Data is viewable via the large, bright, four-digit display with fixed resolution (10mV and 1mA). The Aim-TTi EX355R Digital Bench Power Supply’s fixed resolution works to prevent misinterpretation of readings and improves precision.
The Aim-TTi EX355R Digital Bench Power Supply does not emit any fan noise as it utilises convection cooling. It is reliable, precise, and simple to use as a result of its four-digit meter, switchable remote sensing, and analogue controls.
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. |
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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 <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. |
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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 (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 |
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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 | EX354RD, EX354RT - 110V to 240V 50/60Hz (universal input); Other Models - 230V AC ± 10% 50/60Hz; 115V to order. Installation Category II |
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VA Ratings |
EX810R, EX355R - 400VA; EX354RD, EX354RT - 500VA EX2020R, EX4210R - 800VA |
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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 | EX1810R, EX355R, EX354RD, EX354RT - fan-less convection cooling; EX2020R, EX4210R - fan assisted using low-noise brushless dc fan. |
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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) |
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Weight | EX810R, EX355R - 3.0kg; EX2020R, EX4210R - 3.6kg EX354RD, EX354RT - 4.3kg |