8500B - 7 Pages

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8500B

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Data Sheet The 8500B Series programmable DC electronic loads improve upon all aspects of its predecessor while maintaining dependability at a value price. A set of comprehensive functions make these loads a versatile tool for testing and evaluating DC power supplies, DC-DC converters, batteries, battery chargers, and photovoltaic arrays. List mode, transient mode, automatic test mode, and battery test mode offer a variety of test tools for lab or production line applications. Continuously switching and pulsing load conditions put a dynamically changing load on DC sources. Load behavior can be triggered internally, externally, or remotely from the included application software. Contained in a compact benchtop form factor, these loads operate in constant current (CC), constant voltage (CV), constant resistance (CR), or constant power (CW) mode. Internal memory allows for 100 sets of user configurable parameters such as voltage, current, slew rate and width for quick system recall. Special applications • Performance verification of photovoltaic solar panels • CR-LED mode to simulate loading behavior and test LED drivers • Fuel and solar cell tests • Battery test and power supply evaluations Features and benefits ■ Maximum input power 1500 W ■ CC/CV/CR/CW operating modes ■ 16-bit voltage and current measurement system providing up to 0.1 mV / 0.1 mA resolution ■ Transient mode up to 10 kHz in CC mode ■ List mode function for custom step sequences ■ Supports both SCPI and backwards compatible 8500 series protocol ■ Store and recall up to 100 instrument settings Features and benefits (cont.) ■ Adjustable slew rate in CC mode ■ Flexible triggering options via front panel, external input, timer, or bus ■ Built -in battery test function, specify cut-off voltage, capacity level, and time ■ Test modes to validate the OCP/OPP protection functions of a power supply ■ OVP/OCP/OPP/OTP including local and remote reverse voltage (LRV/RRV) protection ■ Remote sense ■ Short-circuit test ■ Analog current monitoring ■ Two thermostatically controlled fans (linear-speed control to minimize noise) ■ Integrated meter measures voltage, current, & power ■ Rack-mountable Technical data subject to change © B&K Precision Corp. 2019

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Programmable DC Electronic Loads 8500B Series Rotary control knob Increment and decrement values quickly and precisely Bright dual-line display The 8500B Series display shows both measured input values and set parameters simultaneously. Numeric keypad Input values directly Function keys Backlit buttons indicate mode of operation Cursor keys Set values on a digit-by-digit basis and easily configure test parameters Multi-type input terminals Supports banana jack (up to 10 A) or spade type for full current connections Rear panel Line voltage switch Current monitor BNC output 110 or 220 VAC...

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Programmable DC Electronic Loads 8500B Series Front panel Rack-mount ears included Bright dual-line display The 8500B Series display shows both measured input values and set parameters simultaneously. Function keys Backlit buttons indicate mode of operation Numeric keypad Input values directly Rotary control knob Increment and decrement values quickly and precisely Multi-type input terminals Supports banana jack (up to 10 A) or spade type for full current connections Rear panel Remote sense and trigger Cooling fans Compensate for voltage drops due to load wire resistance. Two connections...

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Programmable DC Electronic Loads 8500B Series List mode Automatic test mode CV 3 V Low voltage operation The 8500B Series can operate at low voltages for applications in fuel cell and solar cell testing. Typical minimum operating voltage at full scale current List mode lets you generate more complex sequences of input changes with several different levels. Save up to 7 groups of list files to internal memory for recall and set parameters including step counts (range 2 to 84), width time of a single step (minimum 20 ps), step value, and slope. Transient operation to periodically switch...

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Programmable DC Electronic Loads 8500B Series Remote control and programming Battery test software External analog programming and monitoring interface Application software In addition to front panel and remote interface control, current values can also be programmed with an analog control signal. The electronic loads can be externally controlled from zero to full scale with a 0 to 10 V input signal. A BNC output is available on the rear for monitoring the current with a 0 to 10 V output signal. Voltage-on (Von) latch operation V Couple the 8500B load with power supplies such as the 9115 or...

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Programmable DC Electronic Loads 8500B Series Note: All specifications apply to the unit after a temperature stabilization time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C. (1) Fast pulse trains with large transitions may not be achievable. (2) The slew rate specifications are not warranted but are descriptions of typical performance. The actual transition time is defined as the time for the input to change from 10% to 90%, or vice versa, of the programmed current values. In case of very large load changes, e.g. from no load to full load, the actual transition time will...

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Programmable DC Electronic Loads 8500B Series (3) Standard for 8542B, 8500B, 8502B, and 85I0B models only. (4) Standard for 85I4B only.

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