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OUTPUT
Voltage/Current Ranges
PL155 - 0V to 15V/1mA to 5A; 0V to 15V/0.1mA to
500mA; (75W max.)
PL303 - 0V to 30V/1mA to 3A; 0V to 30V/0.1mA to
500mA; (90W max.)
PL601 - 0V to 60V/1mA to 15A; 0V to 60V/0.1mA to
500mA; (90W max.)
PL303QMD - two identical outputs as per PL303,
with Tracking and Parallel modes (see Modes section)
Note: Actual maxima for voltage and current are
typically 1% greater than the figures given above.
Output Setting & Control
Voltage Setting: By coarse and fine controls.
Current Setting: By single logarithmic control.
Output Mode: Constant voltage or constant
current with automatic cross-over. CC indicator in
constant current mode.
Output Switch: Electronic, non isolating. Preset
voltage and current limit displayed when Output off.
Output rise time no load <15ms.
V-Span
(Voltage Span Control)
The voltage adjustment range can be controlled
by digital setting of the end-stop values of the coarse voltage
control to any desired values. The range for Vmax is 0.1V to
15V/30V/60V depending on model.
The range for Vmin is 0 to (Vmax 0.1V).
S-Lock (Settings Lock)
Voltage and current settings can be locked by a
single button press. Lock accuracy is equal to the meter accuracy
(see Meter Specification).
Output Performance
Ripple and Noise: Normal mode voltage: <04mV
rms and 2mV p-p; Normal mode current:
<02mArms; (<40uA on 500mA range);
Common mode current: <5mA rms
Load Regulation: Voltage - <001% + 2mV. Current
- typically 001% + 500A.
Voltage specification applies for any load
change, measured at the output terminals. When using remote sense
add 0.5mV per 0.1V drop in the positive output lead (max. sense lead
resistance 0.5 Ohm).
Line Regulation: Voltage <001% + 2mV for 10%
line change. Current <001% + 250A. for
10% line change.
Transient Response: <50ms to within 50mV of
setting for a 90% load change.
Temp. Coefficient: Voltage: typically <(50ppm +
05mV)/C; Current: typically <(100ppm +
1mA)/C;
(100ppm + 01mA)/C on 500mA range.
Output Protection
Output Protection: Output will withstand forward
voltages of up to 20V above rated output voltage. Reverse protection
by diode clamp for currents up to 3A.
Over-temperature: Output trips off for
over-temperature.
Safety Interlocks: Operations that could cause
an unpredictable change in voltage or current settings are
interlocked with the output switch.
Output Connections
Output Terminals: Universal 4mm safety binding
posts on 19mm (075) spacing.
Terminals can accept fixed shroud 4mm plugs, standard 4mm plugs, fork
terminals and bare wires.
Remote Sense
Sense Selection: Voltage sensing can be selected
as Local or Remote by front panel switch.
Sense Terminals: Sprung loaded screw-less
terminals.
MODES OF OPERATION (PL303QMD only)
The PL303QMD has four modes of operation -
Independent, Isolated Tracking, Isolated Ratio Tracking,
and True Parallel.
Independent: The two outputs are
completely independent and electrically isolated from each other.
Tracking: The two outputs remain
electrically isolated, but the voltage control of the Master output
sets an identical voltage on the Slave output.
Ratio Tracking: As Tracking, but the Slave
voltage can be set to to any percentage of the Master output and
will retain that percentage ratio as the Master voltage is varied.
Parallel: All of the power (up to 180
watts) is channelled to the Master output which can consequently supply up to 6
amps. The Slave output is turned off and its meters are blanked.
Both On/Both Off: The Both On and Both Off
buttons are in addition to the individual switches for each output,
and allow both outputs to be turned on or off synchronously by a
single button press.
METER SPECIFICATIONS
Display Type: Dual 4-digit meters, 10mm (039)
LED.
Voltage Meter
Resolution: 10mV;
Accuracy: (01% of reading + 10mV)
Current Meter
Resolution: 1mA (01mA on 500mA range);
Accuracy: (03% + 0005A) to 3A; (05% + 0005A) to 5A;
(03% + 05mA) on 500mA range
Meter Damping: Normally 20ms, switchable to 2
sec for averaging of rapidly varying loads.
GENERAL
AC Input: 230V AC or 115V AC 10%, 50/60Hz.
Installation Category II; Input Power:
280VA max.
Operating Range: +5C to +40C, 20% to 80% RH
Storage Range: -40C to + 70C
Environmental: Indoor use at altitudes up to
2000m, Pollution Degree 2.
Cooling: Intelligent variable-speed low noise
fan assists convection.
Safety: Complies with EN61010-1
EMC: Complies with EN61326
Size: Single - 107mm
wide x 131mm
high ( rack 3U) x 288mm deep,
excluding feet, knobs and terminals;
Dual - 214mm wide x 131mm high ( rack 3U) x 288mm deep,
excluding feet, knobs and terminals.
Weight: Single - 45kg; Dual - 9kg |
