BK Precision 8500 Electronic Load (B&K 8500), 0-120 VDC, 1 mA-30 A, 300 W max.
- Operates between 0-120 VDC, 1 mA-30 A, 300 W max
- Constant current (CC), resistance (CR), voltage (CV) and power (CP) operation
- Built-in high resolution (0.1 mA/1 mV) voltage and current measurement (range dependent)
- Built-in transient generator
- RS-232 to TTL, USB to TTL serial converter cables and application software included
- List mode operation for increased throughput.
- Battery testing mode to provide Ah rating of battery
- Flexible triggering: Create trigger events by front panel keystroke, back panel TTL signal or software
- Connect multiple units in parallel to increase current rating
- 1 Year Warranty
The affordable, laboratory grade BK Precision 8500 Programmable DC Electronic Load is well suited for testing and evaluating a wide variety of DC power sources. This DC electronic load can operate in CC, CV, CR or CP mode while voltage/current or resistance/power values are measured and displayed in real time and is fully programmable via RS-232C or USB interface. Extensive protection, including over temperature, over power, over voltage, over current and reverse polarity will help protect your valuable prototype. Its flexible operating modes and excellent measurement accuracy make this DC electronic load a great choice for characterizing DC Power supplies, DC-DC Converters, batteries, fuel cells and solar cells.
The loads can operate in CC, CV, CR or CP mode while voltage/current or resistance/power values are measured and displayed in real time. Load terminals are isolated and floating. Over temperature, over power, over voltage, over current and reverse polarity protection will help protect your valuable prototype and circuits.
The B&K 8500 series can operate well below 1 V which is important for low voltage application such as fuel cell and solar cell testing. All models can regulate (provide a stable input) down to 0.1 V.
The numeric keys and rotary knob provide a convenient interface for setting the operating mode and desired current/voltage/resistance levels quickly and precisely. Voltage and current can be set to a maximum resolution of 1 mV and 0.1 mA respectively.
Flexible operating modes
CC, CR, CV and CP mode
In Constant Current (CC) mode, the load will sink a current according to the programmed current value regardless of the input voltage. (CC) mode can be used for load regulation testing of DC power supplies or for characterizing the discharge profile of a battery.
Constant Power (CP) mode simulates a load whose power consumption is independent of the applied voltage. Constant Power (CP) mode is useful for battery testing and simulating a realistic discharge curve.
In Constant Voltage (CV) mode, the load will attempt to sink enough current to control the source voltage to the programmed value. This mode is suitable for testing battery chargers.
In Constant Resistance (CR) mode, the load will sink a current linearly proportional to the input voltage in accordance with the programmed resistance. Unlike conventional resistors, the load resistance stays constant regardless of the power level.
The 8500 series offers a variable frequency generator which can be used in all operating modes. The DC load will toggle between 2 preset levels at a frequency between 0.1 Hz to 1 kHz, either continuously or controlled by a trigger.
Triggering is used to allow synchronization of the DC Load's behavior with other events. You can generate a trigger event by front panel keystroke, by applying an external TTL signal to the back panel terminal or by sending a commands over the serial bus. The trigger can be used in pulse mode, transient mode, list mode and works in CC, CR, CV and CP modes.
Remote control & application software
The DC loads can be remotely controlled from any PC with USB interface, allowing the user to fully program and monitor all parameters. USB to TTL serial converter cables are included. For users wanting to write their own custom software, a set of example programs are available for download on the B&K Precision website.
Application video demonstrating battery discharge testing using an 8500 series DC Electronic Load, and a sealed lead acid battery (SLA). http://www.bkprecision.com/products/categories/7/dc-electronic-loads.html
Battery Amp-ho...Application video demonstrating battery discharge testing usin...
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