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-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.
LXI Compliance
LAN 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 Resolution
1mV
Voltage Setting Accuracy
± (0.05% +10mV)
Current Setting Resolution
0.1mA (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 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.
ANALOGUE REMOTE CONTROL
(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.
Scaling
Reference Point
All control voltage are referenced to the positive output terminal
Set Voltage Input
0V 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 Input
0V 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 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% +10mV); Input Impedance = 100kOhm
Set Current Input
± (0.5% +0.005A); ± (0.5% +0.5mA) on 500mA range Input Impedance = 64k 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)
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
Size
sizes exclude feet, knobs and terminals
Single output models
107mm x 131mm (1/4 rack 3U) x 343mm,
Dual output models
214mm x 131mm (1/2 rack 3U) x 288mm
Triple output models
321mm x 131mm (3/4 rack 3U) x 288mm
Weight
Single output models
4.55kg (10lb);
Dual output models
9.05kg (19.9lb)
Triple output models
13.0kg (28.6ib)
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, 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.
GPIB Interface
(Option G) GPIB (IEEE-488) interface fitted in addition to
other interfaces.