AimTTI LD400P Electronic DC Load 80A, 80V, 400W with USB, RS232, LAN (GPIB optional)
AimTTI LD400P Electronic DC Load - 80A, 80V, 400W with USB, RS-232 and LAN interfaces (Optional GPIB with the use of GPIB-1A accessory)
Features:
- Versatile solution for testing dc power sources with full bus remote control
- Constant current, resistance, conductance, voltage and power modes
- Wide voltage and current range, 0 to 80 V and 0 to 80 A
- 400 watts continuous dissipation at 28 degrees C
- 360 watts continuous dissipation at 40 degrees C
- 600 watts short-term dissipation capability
- Low minimum operating voltage of below 1V at 40A
- High resolution and accuracy for level setting
- Built-in transient generator with variable slew
- Current monitor output for waveform viewing
- Variable drop-out voltage for battery testing
- High resolution backlit graphic LCD with soft key control
- Front and rear input terminals (front terminals 30A max.)
- Analog remote control of levels and TTL control of on/off and transient switching
- Full bus control via USB, RS232 and LXI compliant LAN interfaces
Compact electronic DC load
The LD400 is an inexpensive electronic load which is suitable for testing and characterising a wide variety of dc power sources.
It can be used to investigate the behaviour of many different types of power source such as batteries and solar cells, as well as electronic power supply units.
Its wide voltage/current range, multiple operating modes and built- in transient generator give it the versatility to offer test solutions from the design laboratory through to the component test area.
The LD400P adds full bus remote control via USB, RS-232 and LAN (Ethernet) interfaces.
Low minimum operating voltage
The LD400 can operate at voltages below 500mV for currents up to 10 amps. At higher currents the fixed minimum resistance (typically better than 25mW) gradually raises the minimum operating voltage, but it remains below 1 volt up to 40 amps and below 2 volts up to 80 amps.
This low operating voltage allows it to be used for many low voltage applications for which other electronic loads are unsuitable.
600 watts intermittent power
The LD400 can operate at power levels up to 600 watts for periods of up to 1 minute.
Short term loading can be sufficient for many testing applications and significantly extends the usefulness of the LD400.
Remote control
The LD400 incorporates analogue remote control for all modes of operation. When “external voltage” is selected the level becomes linearly proportional to the voltage applied to the remote control inputs on the rear panel.
Any waveform can be used as the control voltage allowing complex load conditions to be simulated using, for example, an arbitrary waveform generator.
Alternatively, a logic signal can be used to switch between levels. When “external TTL” is selected, the level is switched between the two defined levels in response to an external logic signal.
The remote control inputs have a wide common mode range allowing the control voltage to be referenced independently of the load terminal voltages.
Current waveform monitor
It is often important to be able to observe the load current waveform on an oscilloscope. The LD400 provides a calibrated monitor output for this purpose as well as a sync output from the transient generator.
The monitor output has several volts of compliance with respect to the load input, thus allowing it to be connected to a grounded oscilloscope without current diversion.
LD400P - comprehensive bus remote control
To meet a wide variety of needs, the LX400P adds a comprehensive array of digital bus interfaces. RS-232, USB and LAN (Ethernet) with LXI support are all provided as standard.
Each of the digital bus interfaces provides full control of and read-back of settings and status. The interfaces are at ground potential and are opto- isolated from the terminals.
An RS-232/RS-423 interface is provided for use with legacy systems. This type of serial interface remains in common useage and is perfectly satisfactory for
the control of load devices because data speed is not an issue.
USB provides a simple and convenient means of
connection to a PC and is particularly appropriate for small system use. A USB driver is provided which supports Windows operating systems.
The LAN interface uses a standard 10/100 base-T Ethernet hardware connection with ICMP and TCP/ IP Protocol for connection to a Local Area Network
or direct connection to a single PC. This interface supports LXI and is highly appropriate for system use because of its scalable nature and low cost interconnection.
The LAN interface is LXI compliant.
LXI (LAN eXtensions for Instrumentation) is the next- generation, LAN-based modular architecture standard for automated test systems managed by the LXI Consortium, and is expected to become the successor to GPIB in many systems.
For more information on LXI and how it replaces GPIB, or operates along side it, go to: www.aimtti.com/go/lxi
IVI Driver
An IVI driver for Windows is included. This provides support for common high-level applications such as LabView*, LabWindows*, and HP/Agilent VEE*.
* LabView and LabWindows are trademarks of National Instruments. HPVEE (now Agilent VEE) is a trademark of Agilent Technologies.
* Windows is a trademark of Microsoft.
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