TTI PL154 - Specification

Specification
MAIN OUTPUT(S)
Output Range: Nominally 0-32V, (PL320/330); 0-15.5V (PL154).
Nominally 0-2·1A (PL320); 0-3·1A (PL330); 0-4A (PL154).
Output Voltage Setting: By coarse and fine controls; resolution <5mV across the range.
Output Current Setting: By single logarithmic control.
Output Mode: Constant voltage or constant current modes with automatic cross-over.
Decimal points flash to indicate constant current mode.
Configuration Selection:
(QMD and QMT only)
Isolated, True parallel, Series, or Series Tracking via front panel switches.
Output Switch: Isolates the output and permits voltage and current limits to be set up before
connecting the load.
Output Terminals: 4mm terminals on 19mm (0·75") spacing.
Sensing: Remote via 4mm terminals or direct via shorting links (provided).
Output Impedance:
Constant Voltage:
Constant Current:
<5 mΩ at 1kHz.
Typically 50 kΩ with voltage limit at maximum.
Output Protection: Up to maximum output voltage +20 Volts forward; diode clamped for reverse
voltages and up to 3A reverse current.
Load & Line Regulation: < 0·01% of maximum output for 90% load change or 10% line change.
Ripple and Noise: Typically <1 mV rms.
Transient Response: < 20 µsec to within 50 mV of setting for 90% load change.
Temperature Coefficient: Typically < 100 ppm/
O
C.
Meter Type: Dual 3·75 digit (4095 count) with 12·5mm (0·5") LEDs. Reading rate 4Hz.
Meter Resolution: 10 mV and 1mA over the entire range.
Meter Accuracy: Voltage 0·1% of reading + 1 digit, current 0·3% of reading + 1 digit.
Current Meter Damping: ~20 ms, switchable to 2 sec for averaging of rapidly varying loads.
LOGIC OUTPUT (PL320QMT & PL330QMT)
Output Voltage Range: 4 to 6 Volts.
Output Current: 0·1 to 4 Amps (PL320QMT); 0·1 to 7 Amps (PL330QMT).
Output Switch: Electronic.
Output Terminals: 4mm terminals on 19mm (0·75") spacing.
Over-Voltage Protection: Above 7 Volts.
Output Protection: Clamped by the over-voltage protection circuit for forward voltages over
7 Volts and up to 1 Amp forward current. Diode clamped for reverse voltages
and up to 3 Amps reverse current.
Load & Line Regulation: < 0·01% of maximum output for 90% load change or 10% line change.
Ripple and Noise: Typically <1 mV rms.
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