am Thurlby Thandar Instruments PL154 Dual Output Power Supply Quad-Mode, 0-15.5 VDC, 0-4 A
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 - 15.5 Volts nominal
0 - 4A (PL320)
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