-OUTPUT SPECIFICATIONS (each Output):
+ Voltage/Current Levels:
Voltage Range: Range 1 - 0V to 60V; Range 2 - 0V to 80V
Current Range: 0A to 50A.
Power Range: Up to 600W - see PowerFlex+ power envelope graph.
Operating Mode: Constant voltage or constant current with automatic cross-over
and mode indication.
+ Output Setting:
Voltage Setting: By floating point numeric entry or rotary jog wheel; resolution 1mV for 60V range or 2mV for 80V range.
Current Setting: By floating point numeric entry or rotary jog wheel; resolution 10mA.
Setting Accuracy: Voltage - 0.1% ± 2mV; 0.1% ± 4mV on 80V range; Current - 0.3% ± 20mA
Setting Stores: Up to 10 set-ups can be saved and recalled via the keyboard (or the digital interfaces on QPX600DP).
+ Keyboard & Rotary Control:
All functions, including the selection and set-up of the remote control interfaces, can be set from the keyboard.
The rotary Jog control can be used to adjust output voltage and current settings in a quasi-analogue mode.
The output to be controlled is first selected with the appropriate Control key.
+ Output Performance:
Load regulation: <0.01% +5mV (CV mode) for any load change within the PowerFlex envelope, using remote sense.
Line regulation: <0.01% +5mV for a 10% line voltage change.
Ripple & Noise: Typically <3mV rms, <20mV pk-pk, (20MHz bandwidth).
Transient Response: <2ms to within 100mV of set level for 5% to 95% load change.
Temp. Coefficient: Typically <100ppm/oC.
Sensing: Selectable local or remote sensing.
+ Output Protection:
External Voltage: Output will withstand forward voltages of up to 90V. Reverse protection by diode clamp.
Power Limit: Automatic protection within PowerFlex+ control system.
Fault Trip: The output will be shut down if any of the four trip conditions listed below occur.
Over Voltage (OVP): Settable 2V to 85V in 0.1V steps
Over Current (OCP): Settable 2A to 55A in 0.1A steps
Over Temperature: Monitors internal temperature rise to protect against excess ambient temperature or blocked ventilation slots.
Sense Error: Monitors the voltage between the remote sense terminals and output terminals to protect against mis-wiring.
+ Output Switching:
Push switch operating electronic power control. LED indication of On state
Output Terminals: Rear mounted safety terminals accepting 6mm wire diameter, 6mm plugs or 8mm spades at 50 Amps max, or 4mm plugs at 30 Amps max.
Sensing Terminals: Screw-less terminals on rear panel.
- LINK MODES:
In addition to independent output operation, the instrument is capable of operating in a number of different voltage and current tracking modes which can be activated from the Link Menu.
These modes include Output 2 voltage (V2) tracking Output 1 voltage (V1) by any ratio in the range 5% to 2000%,
V2 and I2 set to track V1and I1 (1:1) with total V1 + V2 displayed (useful when
Output 1 and Output 2 are series connected), V2 and I2 set to track V1and I1 (1:1) with total I1 + I2 displayed (useful when Output 1 and Output 2 are parallel connected).
- METERING (each Output):
Display Type: Large dot-matrix black-on-white backlit LCD.
Meter Function: 5 digit voltage meter and 4 digit current meter. Display of limits values, memory contents etc. Wide range of alpha-numeric messages/menus.
Limits Display: Limits settings can be displayed simultaneously with measurements.
Meter Resolution: Voltage: 1mV (2mV on 80V range). Current: 10mA
Meter Accuracy: Voltage: 0.1% of reading ± 2 digits (CI mode and Unreg)
Current: 0.3% of reading ± 2 digits (CV mode and Unreg)
+ Additional Metering Functions:
V x A Display shows calculated power in watts. Resolution 0.1W. Accuracy 0·5% ± 0·1W
V/A Display shows calculated resistance. Resolution up to 5 digits. Measurement uncertainty is shown on display.
- ANALOG & LOGIC INTERFACES (each Output):
+ Analog Remote Control and Monitoring:
Non-isolated inputs and outputs to set voltage and current limit and to monitor actual output voltage and current.
These signals are referenced to the negative output and have a range of 0 to 10V or 0 to 5V (selectable via the keyboard).
Note that the analog control voltage is digitised within the power supply.
Control Accuracy: Voltage: 0.3% ± 4mV; Current: 0.5% ± 40mA
Monitor Accuracy: Voltage: 0.3% ± 4mV; Current: 0.5% ± 40mA
+ Logic Control Input and Output:
LOGIC IN is a rear-panel opto-isolated input that is activated at an input current greater than approximately 1mA.
User can set LOGIC IN (via the keyboard) to enable the output, disable the output, or be ignored when it is activated.
LOGIC OUT is an isolated rear-panel open-collector output that will sink up to 2mA when activated (‘switch closure’);
the maximum voltage that can be applied to LOGIC OUT is 30VDC.
User can set LOGIC OUT to be ‘closed’ or ‘open’ for output enabled or disabled, current limit (CI mode), power limit (UNREG mode), or for any fault trip
- DIGITAL BUS INTERFACES (QPX600DP only):
The QPX600DP offers full remote control and read-back using RS-232, USB, GPIB or LAN (compliant with LXI class C).
All interfaces are at ground potential and opto-isolated from the output terminals.
Standard 9-pin D connector. Baud rate 9,600.
USB 2.0 connection (backwards compatible with USB 1.x). Operates as a virtual COM port.
+ GPIB (IEEE-488):
The interface conforms with IEEE-488.1 and IEEE-488.2.
+ 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 class C. (LXI is the abbreviation for Lan eXtensions for Instrumentation).
- DIGITAL PROGRAMMING PERFORMANCE (QPX600DP only):
+ Setting Accuracy and Resolution:
As per Manual Control (see Output Setting under Output Specifications)
+ Programming Speed:
Command Delay: Typically <100ms between receiving the command terminator for a step voltage change at the instrument and the output voltage beginning to change.
- DRIVER SOFTWARE SUPPLIED (QPX600DP only):
+ 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 2000, XP, and Vista. Windows is a trademark of Microsoft
- GENERAL SPECIFICATIONS:
AC Input: 110V to 240V AC ±10%, 50/60Hz. Installation Category II.
Input Power: 1600VA 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 fans.
+ Safety & EMC:
Safety: Complies with EN61010-1
EMC: Complies with EN61326
Size: 350 x 130 x 413mm (WxHxD) (3U height) .
Weight: 9.2kg (20lb).
Rack Mount (RM420)
19 inch 4U rack mount (provides ventilation space above and below PSU).
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