Product Description
The Thurlby Thandar PL series of laboratory bench power supplies has established itself in many countries as an “industry standard” range.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.
MAIN OUTPUT(S)
Output Range | 0 - 32 Volts nominal |
Voltage Setting | By coarse and fine controls; resolution <5mV. |
Current Setting | By single logarithmic control. |
Output Mode | Constant voltage or constant current modes with automatic cross-over. |
Configuration Selection | Isolated, True parallel, Series or Series Tracking via front panel switches. (QMD and QMT only) |
Output Switch | Isolates the output. Permits voltage and current limits to be set up before connecting the load. |
Output Terminals | 4mm terminals on 19mm (0.75") spacing. |
Output Impedance | Constant Voltage Typically <5mW at 1kHz. |
| Constant Current Typically 50kW. |
Output Protection | Max. output voltage +20 volts forward; diode clamped for reverse, up to 3A reverse current. |
Load Regulation | <0.01% of max. output for 90% load change |
Line Regulation | <0.01% of max. output for 10% line change |
Remote Sense | Eliminates up to 0.5V drop per lead. |
Ripple and Noise | Typically <1mV rms |
Transient Response | <20usec to <50mV for 90% load change |
Temp. Coefficient | Typically <100ppm/oC |
Meter Type | Dual 4 digit with 12.5mm LEDS, Reading rate 4 per second. |
Meter Resolution | Voltage 10mV over the entire range, Current 1mA over the entire range |
Meter Accuracy | Voltage ±(0.1% of reading + 1 digit), Current ±(0.3% of reading + 1 digit) |
Current Meter Damping | Nominally 20ms, switchable to 2 sec for averaging of rapidly varying loads |
