- 32V / 3A output
- Voltage and current meters
- Isolated outputs
- RS232 / GPIB interfaces
PL series units incorporate digital meters with a 3.75 digit scale length (4095 counts) to provide greater accuracy and resolution than other PSUs. Large and bright LEDs give a clear and unambiguous reading. An update rate of 4 per second provides near instantaneous response. Separate meters are used for voltage and current, eliminating the need for meter function switches with their attendant problems of misinterpretation. A damping switch for the current meter simplifies measurements on rapidly varying loads.
Remote sense terminals enable the precision to be maintained at high currents by eliminating the effects of connection lead resistance. Without remote sense lead resistance of just a few tens of milliohms can seriously degrade regulation and produce misleading results. (Two cables of 0.05O each will drop a total of 0.3V at 3 Amps.).
The PL series sets the standard for simple and comprehensive control. Voltages are set with coarse and fine controls for speed with precision. Currents are set with a semi-logarithmic control for increased resolution at low current levels. The DC output switch enables voltage and current levels to be set before the load is connected. With the output switch off the current limit set point is displayed. With the output switch on the actual output current flowing is displayed. This invaluable feature allows delicate circuits to be protected by accurately setting the current limit level (down to a few milliamps if necessary) before connecting the circuit under test.
PL series PSUs are designed and built to meet the stringent requirements of IEC348 and IEC1010. All outputs are fully protected against short circuit, reverse voltage and reverse currents.
The PL series includes single, dual and triple output models from 66 Watts up to 240 Watts.
The 32V-2A and 32V-3A supplies are each available as a dual unit incorporating push button selection of four different modes of operation.
Each of the quad-mode dual models is alternatively available as a triple supply incorporating one further independent output. This is a higher current low voltage output intended for powering logic circuits.
The Thurlby Thandar PL-P series offers a high performance bus programmable power supply system at low cost. Based around the 32V-3A versions of the standard PL series, the PL-P models include single, dual and triple output units suitable for bench or rack mounting. When not connected to the bus, these PSUs can be operated exactly as a standard.