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The UTP3303-II laboratory power supplies are branded power supplies with three independent channels from the UNI-T manufacturer. The sources contain a classic linear transformer and in channels CH1, CH2 they allow operation in the mode of setting the constant output voltage in the range of 0 to 32V or in the mode of constant output current 0 to 3A (or 0 to 5A for type UTP3305-II). Channel CH3 provides a constant voltage of 5V at the output and has overload protection when current consumption 3A is reached. Channels CH1 and CH2 can operate independently of each other, or they can be internally connected in series or in parallel, then supply voltages from 0 to 64V / 0 to 3A (5A) or 0 to 32V / 6A (10A). The laboratory power supplies have four LED displays that display voltages and currents simultaneously, with an accuracy of 4 locations in each of the CH1 and CH2 channels. The source contains a temperature-controlled fan, long-term thermal overload of the transformer of the laboratory source is monitored by a sensor, which switches off the source when the limit value is reached and switches it on again after cooling. The device is CE certified.
Product parameters :
- setting currents and voltages with fine multi-turn potentiometers - four four-digit LED displays for immediate control of voltages and currents in channels CH1 and CH2 - voltage setting 0 to 32V with a resolution of 10mV - current setting 0 to 3A with a resolution of 1mA - operation of channels CH1 and CH2 in voltage constant, constant current modes - possibility of internal connection of channels CH1 and CH2 in series or in parallel - channel CH3 with fixed voltage 5V, max. 3A - temperature controlled cooling fan - disconnection from the power supply when the transformer is thermally overloaded - input voltage selector 110V / 120V / 220V / 230V (AC 50 / 60Hz) on the back
Technical parameters :
- rated output voltage CH1 and CH2: 0 to 32V - rated output current CH1 and CH2: 0 to 3A - rated output voltage / current CH3: 5V / max. 3A - total rated output power: 207W - voltage / current setting resolution: 10mV / 1mA - voltage setting accuracy: ± (0.1% of measured value + 30mV) - current setting accuracy: ± (0.3% of measured value + 10mA) - ripple and noise (20Hz to 20MHz) at outputs CH1 and CH2: ≤1mV RMS / ≤3mA RMS - ripple and noise at output CH3: ≤2mV - temperature coefficient: voltage ≤300ppm / ° C // current ≤300ppm / ° C - recovery time: <100μs (load fluctuation: 50%, minimum load: 0.5A) - rated supply voltage: AC 110V / 120V / 220V / 230V / (50 / 60Hz) - protection with tubular fuse type: F6,3AL250V (when powered by 110 / 120V AC), F3,15AL250V (when powered by 220 / 230V AC) - power consumption: 450W - dimensions: 319 x 146 x 226mm - weight: 9.2kg
Package contents :
- laboratory power supply UTP3303-II: 1pc - power cable: 1 pc - spare fuses: 1pc - instructions for use: 1pc
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