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MODEL RANGE
PLH120-P - 0 to 120V at 0 to 750mA
PLH250-P - 0 to 250V at 0 to 375mA
Lower Voltage Models - Go 
Here for New PL Series
PL155-P - 0 to 15V at 0 to 5A
PL303-P - 0 to 30V at 0 to 3A
PL601-P - 0 to 60V at 0 to 1.5A
PL303QMD-P - 2 x (0 to 30V at 0 to 3A)
Digital Bus Interfaces - RS-232, USB, LAN (LXI)
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 is manually selectable only.
RS-232
Standard 9-pin D connector. Baud rate 19,200
max.
USB
Standard 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.
GPIB (only with Option G)
The interface conforms with IEEE-488.1 and
IEEE-488.2.
LXI Compliance
LAN interface is compliant with LXI-C. (LXI is
the abbreviation for Lan eXtensions for Instrumentation).
Digital Programming Performance
Voltage Setting
Setting Resolution: 10mV
Setting Accuracy: ± (0.1% +50mV)
Current Setting
Setting Resolution: 0.1mA (0.01mA on 75mA
range)
Setting Accuracy: ± (0.3% +0.3mA); ± (0.3% +0.03mA) on 75mA range
Programming Speed
Command Delay: Typically <80ms (this must be
added to any of the figures below)
Voltage Up Time: Typically <45ms* to 1%
Voltage Down Time: Typically <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.
Analog Remote Control
Isolated analog voltage control of voltage
and current. Analog control outputs are also provided to enable easy
parallel connection of multiple units in a master-slave
configuration.
Scaling
Set Voltage Input: 0V to 10V sets 0 to 100% of rated output (e.g. 0
to 120V for PLH120-P).
Alternative scaling of 0V to 5V
(selectable using internal link).
Set Current Input: 0V to 10V sets 0 to 100% of rated output (e.g. 0
to 750mA for PLH120-P).
Alternative scaling of 0V to 5V
(selectable using internal link).
Reference Point for control outputs: control output voltage are
referenced to the positive output terminal
Voltage Output: 0 to 100% of rated output voltage generates 0V to
5V.
Current Output: 0 to 100% of rated output current generates 0V to
5V.
Accuracy
Set Voltage Input: ± (0.3% +100mV); Input
Impedance = 10kOhm
Set Current Input: ± (0.5% +0.5mA); Input Impedance = 10kOhm
Voltage Output: ± (0.3% +100mV); Output Impedance
= 125Ohm
Current Output: ± (0.5% +0.5mA); ± (0.5% +0.5mA) on 500mA range;
Output Impedance = 125Ohm
Remote Analog On/Off Control
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 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 which can be seen Here.
GENERAL SPECIFICATIONS
Input
AC Input: 230V AC or 115V AC ± 10%, 50/60Hz.
Installation Category II
Input Power: 280VA max.
Temperature & Environmental
Operating Range: +5ºC to +40ºC, 20% to 80% RH
Storage Range: -40ºC to + 70ºC
Environmental: Indoor use at altitudes up to 2000m, Pollution Degree
2.
Cooling: Intelligent variable-speed low noise fan assists
convection.
Safety & EMC
Safety: Complies with EN61010-1
EMC: Complies with EN61326
Physical
Size: 107mm x 131mm (¼
rack 3U) x 315mm,
(sizes exclude feet, knobs and terminals).
Weight: 4·55kg (10lb);
DRIVER SOFTWARE SUPPLIED
IVI Driver
An IVI driver for Windows is supplied. This
provides support for common applications such as LabView*,
LabWindows*, HPVEE* etc.
USB Driver
An 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, and Vista. Windows is a
trademark of Microsoft.
OPTIONS
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.
Option G
Adds a GPIB (IEEE-488) interface.
This is in addition to the RS-232, USB and LAN interfaces of the
standard PL-P product.
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