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PL-P Series DC Supplies: Technical Specifications

Advanced Bus Programmable DC Power Supplies

  • High performance linear regulated power supplies
  • Full digital remote control and readback
  • RS-232, USB and LAN (Ethernet)
  • LAN Interface conforms with LXI standard
  • Interfaces are opto-isolated from outputs
  • IVI Driver supplied
  • Analogue remote control of V and I (non-isolated)
  • Analogue outputs for easy master-slave parallel wiring
  • Ultra-compact size of quarter-rack 3U
  • High power density - up to 90 watts per output
  • Wide model range; single and dual outputs


Manual control features as per PL Series Specifications

PL155-P0 to 15V at 0 to 5A
PL303-P0 to 30V at 0 to 3A
PL601-P0 to 60V at 0 to 1.5A
PL303QMD-P2 x (0 to 30V at 0 to 3A)

Digital Bus Interfaces
Full remote control and read-back using RS-232, USB or LAN (LXI-C). All interfaces are at ground potential and opto-isolated from the outputs. Note: Remote/Local Sense, and Operational Mode (PL303QMD-P) are manually selectable only.
RS-232Standard 9-pin D connector. Baud rate 19,200 max.
USBStandard USB hardware connection. Operates as a virtual COM port.
Ethernet (LAN)Standard 10/100 base-T hardware connection. ICMP and TCP/IP Protocol for connection to Local Area Network or direct connection to a single PC.
LXI ComplianceLAN interface is compliant with LXI-C. (LXI is the abbreviation for LAN eXtensions for Instrumentation).
GPIB(only with option G) Conforms with IEEE-488.1 and IEEE-488.2.
Digital Programming Performance
Voltage Setting Resolution1mV
Voltage Setting Accuracy± (0.05% +10mV)
Current Setting Resolution0.1mA (0.01mA on 500mA range)
Current Setting Accuracy± (0.3% +0.005A) to 3A, ± (0.5% +0.005A) to 6A, ± (0.3% +0.5mA) on 500mA range.
Programming Speed
Command DelayTypically <80ms (this must be added to any of the figures below)
Voltage Up TimeTypically <45ms* to 1%
Voltage Down TimeTypically <20ms* to 1% (full load); typically <150ms* to 1% (no load)
* The up and down times vary with model, current range and voltage step size. More information is contained in the operating manual which can be downloaded from our web site.

(single output models only) Non-isolated analogue voltage control of voltage and current. Analogue control outputs are also provided to enable easy parallel connection of multiple units in a master-slave configuration. Note that the PL303QMD-P does not have analogue remote control.
Reference PointAll control voltage are referenced to the positive output terminal
Set Voltage Input0V to 10V sets 0 to 100% of rated output (e.g. 0 to 30V for PL303-P). Alternative scaling of 0V to 5V (selectable using internal link).
Set Current Input0V to 10V sets 0 to 100% of rated output (e.g. 0 to 3A for PL303-P). Alternative scaling of 0V to 5V (selectable using internal link).
Voltage Output0 to 100% of rated output voltage generates 0V to 5V.
Current Output0 to 100% of rated output current generates 0V to 5V.
Set Voltage Input± (0.3% +10mV); Input Impedance = 100kOhm
Set Current Input± (0.5% +0.005A); ± (0.5% +0.5mA) on 500mA range Input Impedance = 64k Ohm
Voltage Output± (0.3% +10mV); Output Impedance = 125 Ohm
Current Output± (0.5% +0.005A); ± (0.5% +0.5mA) on 500mA range; Output Impedance = 125 Ohm
Remote Analogue On/Off Control (single output models only)
Non-isolated terminal which sets the output to Off when pulled low by gate signal or relay closure. Signal is reference to the positive output terminal Note that the PL303QMD-P does not have this facility.
Rear Terminals
Power and sense connections are duplicated on the rear panel using a screw-less connector block. Digital Bus Interfaces - RS-232, USB, LAN (LXI)
NOTE: The above specifications are additional to the Manual control specifications.

AC Input230V AC or 115V AC ± 10%, 50/60Hz. Installation Category II
Input PowerSingle output models - 280VA max.; Dual output models - 560VA max.
Temperature & Environmental
Operating Range+5°C to +40°C, 20% to 80% RH
Storage Range-40°C to + 70°C
EnvironmentalIndoor use at altitudes up to 2000m, Pollution Degree 2.
CoolingIntelligent variable-speed low noise fan assists convection.
Safety & EMC
SafetyComplies with EN61010-1
EMCComplies with EN61326
sizes exclude feet, knobs and terminals
Single output models107mm x 131mm (1/4 rack 3U) x 343mm,
Dual output models214mm x 131mm (1/2 rack 3U) x 288mm
Triple output models321mm x 131mm (3/4 rack 3U) x 288mm
Single output models4.55kg (10lb);
Dual output models9.05kg (19.9lb)
Triple output models13.0kg (28.6ib)

IVI DriverAn IVI driver for Windows is supplied. This provides support for common applications such as LabView*, LabWindows*, HPVEE* etc.
USB DriverAn installation file is supplied which calls a standard Windows* USB driver.
* LabView and LabWindows are trademarks of National Instruments. HPVEE (now Agilent VEE) is a trademark of Agilent Technologies. * USB interface is supported for Windows 98-SE, 2000, XP, Vista. Windows is a trademark of Microsoft.

Rack Mount(RM450) 19 inch 4U rack mount suitable for up to four single power supplies, two dual power supplies, or any mixture. Blanking plates are provided for unused positions. The 4U height provides limited ventilation space above and below the power supplies.
GPIB Interface(Option G) GPIB (IEEE-488) interface fitted in addition to other interfaces.

E&OE - subject to change without notice.