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Programmable DC Electronic Loads

8600 Series

Technical data subject to change © B&K Precision Corp. 2019 www.bkprecision.com The 8600 Series programmable DC electronic loads provide the performance of modular system DC electronic loads in a compact benchtop form factor. With fast transient operation speeds and high 16-bit measurement resolution, these standalone DC loads can be used for testing and evaluating a variety of DC sources such as DC power supplies, DC-DC converters, batteries, battery chargers, and photovoltaic arrays. The DC loads can operate in constant current (CC), constant voltage (CV), constant resistance (CR), or constant power (CW) mode and be configured to provide a dynamically changing load to the DC source with fast load switching times. Versatile internal, external, and remote triggering options allow the dynamic load behavior to be synchronized with other events. Increase productivity by saving your test parameters into any one of the 100 memory areas for quick system recall. All load parameters such as voltage, current, slew rate, and width can be set via the front panel or programmed remotely. The 8600 Series provides standard USB (USBTMC-compliant), GPIB, or RS-232 serial interfaces for remote communication. To ensure the reliability of your testing, the 8600 Series provides a power-on system self-test and numerous protection features: overtemperature (OTP), overvoltage (OVP), overcurrent (OCP), overpower (OPP), and local/remote reverse voltage (LRV/RRV) protection. Special applications The 8600 Series provides a built-in battery test mode to measure the ampere-hour (Ah) characteristic of a battery and a unique CR-LED mode to simulate the loading behavior of a typical LED. Features and Benefits (cont.) n Store and recall up to 100 setups n Adjustable slew rate in CC mode n Flexible triggering options via front panel, external input, timer, or bus n Built-in battery test function with voltage level, capacity level, and timer stop conditions n Test modes to validate the OCP/OPP protection functions of a power supply n CR-LED mode to simulate the loading behavior of typical LEDs n Remote sense n Analog current control and monitoring n Thermostatically controlled fan n Standard USB (USBTMC-compliant), RS232, and GPIB interfaces supporting SCPI commands for remote control n OVP/OCP/OPP/OTP including local and remote reverse voltage (LRV/RRV) protection Model 8600 8601 8602 8610 8612 8614 8616 8620 8622 8624 8625 Power 150 W 250 W 200 W 750 W 750 W 1500 W 1200 W 3000 W 2500 W 4500 W 6000 W Operating Voltage 0 – 120 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 120 V Rated Current 0 – 30 A 0 – 60 A 0 – 15 A 0 – 120 A 0 – 30 A 0 – 240 A 0 – 60 A 0 – 480 A 0 – 100 A 0 – 600 A 0 – 720 A Form Factor 2U half-rack 3U 6U Features and Benefits n Voltage range up to 500 V n Current range up to 720 A n CC/CV/CR/CW operating modes n 16-bit voltage and current measurement system providing 1 mV / 0.1 mA resolution n Transient mode up to 25 kHz in CC mode n List mode function USB RS232 GPIB 2U half-rack 3U 6U

Programmable DC Electronic Loads www.bkprecision.com Front panel Rear panel u Models 8600, 8601 & 8602 Bright dual-line display The 8600 Series display shows both measured input values and set parameters simultaneously. Rotary control knob GPIB interface RS232 interface USB interface Numeric keypad Function keys Cursor keys Load input terminal Intuitive user interface The numeric keys and rotary knob provide a convenient interface for setting the operating mode and desired current, voltage, and resistance levels quickly and precisely. High current test lead accessory model TLPWR1 Cooling fan I/O terminal block External trigger, external analog programming, external input On/Off control, voltage fault pin, and remote sense terminals Line voltage selector

Programmable DC Electronic Loads www.bkprecision.com u Models 8610, 8612, 8614, 8616, 8620, 8622 (3U) Front panel Rear panel Bright dual-line display The 8600 Series display shows both measured input values and set parameters simultaneously. Numeric keypad Function keys Cursor keys Operating mode keys Power switch GPIB interface RS232 interface USB interface Input fuse holder Input terminals I/O terminal block External trigger, external analog programming, external input On/Off control, voltage fault pin, and remote sense terminals Line voltage selector Cooling fan AC line input Current monitor BNC output Outputs a 0-10 V signal that follows 0-full range of the input current. 6U form factor models use the same front panel interface as the 3U models The rear panel configurations of 6U and 3U models are identical, however the number of fans installed varies by model u Models 8624 & 8625 (6U)

Programmable DC Electronic Loads www.bkprecision.com Flexible operation List mode lets you generate more complex sequences of input changes with several different levels. Up to 7 groups of list files can be saved. Each list can contain up to 84 steps with a minimum width time of 20 µs per step. List mode Vd = Forward voltage of the LED Rd = LED's operating resistance Vo = Operating voltage across the LED Io = Operating current across the LED Use the load's unique CR-LED operating mode to test LED drivers. This function allows users to configure the LED's operating resistance and for- ward voltage along with the voltage range (same as CR operation) to simulate the loading behavior of typical LEDs. CR-LED mode Figure - LED I-V Curve R dIo I Vd Vo V Automatic test mode The 8600 Series can execute multiple test sequences in automatic test mode. Up to 100 different sequences can be linked to run steps of various operating modes and loading conditions. Each sequence can also be programmed with upper and lower limit Pass/Fall criteria. When applied in production testing, you can easily judge whether the test parameters of your devices are within the specification limits and adjust your process according to the Pass/Fail verdict. Transient operation Transient operation enables the module to peri- odically switch between two load levels. A power supply's regulation and transient characteristic can be evaluated by monitoring the supply's out- put voltage under varying combinations of load levels, frequency, duty cycle, and slew rate. Tran- sient operation can simulate these conditions. Low voltage operation The 8600 Series can operate at low voltages for applications such as fuel cell and solar cell testing. Typical minimum operating voltage at full scale current 8600 8601 8602 8610 8612 8614 8616 8620 8622 8624 8625 pass pass pass fail CC 1 A CW 0.5 W CV 3 V CR 2 Ω 1 s 0.5 s 1.5 s 2.5 s Slew Rate A level B level t A t A Steps Trigger 0 1 2 3 4 5 6 7 8 V I 240 120 480 600 720 1 2 3 4 5 100 Current (A) Voltage (V) 8600 8612 8602 8601 8616 8622 8610 8614 8620 8624 8625

Programmable DC Electronic Loads www.bkprecision.com Remote control and programming Powerful communication interfaces The 8600 Series provides standard GPIB, USB, and RS232 interfaces for remote communication. These interfaces offer SCPI and USBTMC standard communication protocols to control your electronic load from a PC. External analog programming and monitoring interface 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 0-10 V input signal. A BNC output is available on the rear for monitoring the current with a 0-10 V output signal. Battery test function The built-in battery test function uses CC mode to calculate the battery capacity using a fixed current load discharge. Users can specify cut-off voltage level, capacity level, and time stop conditions. Voltage-on (Von) latch operation Control the input turn on state for the DC electronic load by configuring the Von latch function. This can be used to start and stop discharging of a battery or other power source at a specified voltage level. Application software PC software is provided for front panel emulation, generating and executing test sequences, or logging measurement data without the need to write source code. Additionally, this application software integrates with NI Data Dashboard for LabVIEW apps, which allows users to create a custom dashboard on a tablet computer or smartphone to remotely monitor 8600 Series DC loads via this PC software. n Remote monitoring on iOS, Android or Windows 8 compatible tablets or smartphones via NI Data Dashboard for LabVIEW apps n Log voltage, current, and power values with timestamp n Run transient operation and list mode programs remotely n Create an unlimited number of external list files to be executed from PC memory Adjustable slew rate In CC mode, users can control the rate or slope of the change in current in a transient response test. Set the slew rate to as slow as 0.001 A/ms or as fast as 2.5 A/µs depending on the model and selected current range. Built-in rise and fall time measurement The 8600 Series can measure the rise or fall time from a specified start and stop voltage level of the measured input without the need for an oscilloscope. This function can also be used as an internal timer to count how long the input has been enabled.

8600 Series display

Typical battery discharge curve Volts Hours 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 t V t A Load Sink Current Von Level Rise Rate A/µs t A Slew Rate

Programmable DC Electronic Loads www.bkprecision.com Specifications Model 8600 8601 8602 Input ratings Input voltage 0 – 120 V 0 – 120 V 0 – 500 V Input current Low 0 – 3 A 0 – 6 A 0 – 3 A High 0 – 30 A 0 – 60 A 0 – 15 A Input power 150 W 250 W 200 W Minimum operating voltage Low 0.11 V at 3 A 0.18 V at 6 A 1 V at 3 A High 1.1 V at 30 A 1.1 V at 60 A 4.5 V at 15 A CV mode Range Low 0 – 18 V 0 – 50 V High 0 – 120 V 0 – 500 V Resolution Low 0.1 mV 1 mV High 1 mV 10 mV Accuracy Low ±(0.05%+ 0.02% FS) ±(0.025%+ 0.05% FS) ±(0.05%+ 0.025% FS) High ±(0.05%+ 0.025% FS) ±(0.025%+ 0.05% FS) ±(0.05%+ 0.025% FS) CC mode Range Low 0 – 3 A 0 – 6 A 0 – 3 A High 0 – 30 A 0 – 60 A 0 – 15 A Resolution Low 0.1 mA High 1 mA Accuracy High ±(0.05%+0.05% FS) CR mode Range Low 0.05 Ω – 10 Ω 0.3 Ω – 10 Ω High 10 Ω - 7.5 kΩ Resolution 16 bit Accuracy (I>10% of range) High 0.01%+0.0008 S (1250 Ω) CW mode Range 150 W 250 W 200 W Resolution 10 mW Transient mode (CC mode) T1 & T2 (1) 20 µs – 3600 s / Resolution: 10 µs Accuracy 5 µs + 100 ppm Slew Rate (2) Low 0.001-2.5 A/ms 0.001-1 A/ms High 0.001-2.5 A/µs 0.001-1 A/µs Readback voltage Range Low 0 – 18 V 0 – 18 V 0 – 50 V High 0 – 120 V 0 – 120 V 0 – 500 V Resolution Low 0.1 mV 1 mV High 1 mV 10 mV Accuracy ±(0.05%+0.05% FS) Readback current Range Low 0 – 3 A 0 – 6 A 0 – 3 A High 0 – 30 A 0 – 60 A 0 – 15 A Resolution Low 0.01 mA 0.1 mA 0.01 mA High 0.1 mA 1 mA 0.1 mA Accuracy ±(0.05%+ 0.05% FS) ±(0.05%+ 0.1% FS) ±(0.05%+ 0.05% FS) Readback power Range 150 W 250 W 200 W Resolution 10 mW Protection range (typical) OPP 150 W 250 W 200 W OCP Low 3.3 A 6.6 A 3.3 A High 33 A 66 A 16.5 A OVP 120 V 120 V 500 V OTP 185 ºF (85 °C) Short circuit (typical) Current (CC) Low 3.3 A 6.6 A 3.3 A High 33 A 66 A 16.5 A Voltage (CV) 0 V Resistance (CR) 35 mΩ 30 mΩ 300 mΩ General (typical) Input terminal impedance 150 kΩ 300 kΩ 1 MΩ AC input 110 V/220 V ±10%, 50/60 Hz Operating temperature 32 ºF to 104 ºF (0 °C to 40 °C) Storage temperature 14 ºF to 140 ºF (-10 °C to 60 °C) Humidity Indoor use, ≤ 95% Safety EN61010-1:2001, EU Low Voltage Directive 2006/95/EC Electromagnetic compatibility Meets EMC Directive 2004/108/EC, EN 61000-3- 2:2006, EN 61000-3-3:1995+A1:2001+A2:2005 Dimensions (W x H x D) 8.5” x 3.5” x 15.2” (218 x 90 x 387 mm) Weight 9.9 lbs (4.5 kg) Three-Year Warranty Standard accessories User manual, power cord, certificate of calibration & test report Optional accessories TLPWR1 high current test leads, IT-E151 rackmount kit (models 8600, 8601, and 8602 only) (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 be larger than the expected time. The load will automatically adjust the slew rate to fit within the range (high or low) that is closest to the programmed value.

Programmable DC Electronic Loads www.bkprecision.com Specifications (cont.) Model 8610 8612 8614 8616 8620 8622 8624 8625 Input ratings Input voltage 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 120 V Input current Low 0 – 12 A 0 – 3 A 0 – 24 A 0 –6 A 0 – 48 A 0 – 10 A 0 – 60 A 0 – 72 A High 0 – 120 A 0 – 30 A 0 – 240 A 0 –60 A 0 – 480 A 0 – 100 A 0 – 600 A 0 – 720 A Input power 750 W 1500 W 1200 W 3000 W 2500 W 4500 W 6000 W Minimum operating voltage CV mode Range Low 0 – 18 V 0 – 50 V 0 – 18 V 0 – 50 V 0 – 18 V 0 – 50 V 0 – 18 V 0 – 18 V High 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 120 V Resolution Low 0.1 mV 1 mV 0.1 mV 1 mV 1 mV 1 mV 1 mV 1 mV High 1 mV 10 mV 1 mV 10 mV 10 mV 10 mV 10 mV 10 mV Accuracy 0.025% FS) ±(0.025%+ CC mode Range Low 0 – 12 A 0 – 3 A 0 – 24 A 0 – 6 A 0 – 48 A 0 – 10 A 0 – 60 A 0 – 72 A High 0 – 120 A 0 – 30 A 0 – 240 A 0 – 60 A 0 – 480 A 0 – 100 A 0 – 600 A 0 – 720 A Resolution Low 1 mA 0.1 mA 1 mA 0.1 mA 1 mA 1 mA 1 mA 1 mA High 10 mA 1 mA 10 mA 1 mA 10 mA 10 mA 10 mA 10 mA Accuracy Low ±(0.05%+ 0.1% FS) ±(0.05%+ 0.05% FS) ±(0.05%+ 0.1% FS) ±(0.05%+ High ±(0.05%+ 0.1% FS) ±(0.05%+ 0.05% FS) ±(0.05%+ 0.1% FS) ±(0.05%+ CR mode Range High 10 Ω - 7.5 kΩ Resolution 16 bit Accuracy (I>10% of range) High 0.01%+0.0008 S (1250 Ω) CW mode Range 750 W 1500 W 1200 W 3000 W 2500 W 4500 W 6000 W Resolution 10 mW 100 mW Accuracy 0.2% + 0.2% FS Transient mode (CC mode) T1 & T2 (1) 20 µs – 3600 s / Resolution: 10 µs Accuracy 5 µs + 100 ppm (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 be larger than the expected time. The load will automatically adjust the slew rate to fit within the range (high or low) that is closest to the programmed value.

Programmable DC Electronic Loads www.bkprecision.comv111919 Specifications (cont.) Model 8610 8612 8614 8616 8620 8622 8624 8625 Readback voltage Range Low 0 – 18 V 0 – 50 V 0 – 18 V 0 – 50 V 0 – 18 V 0 – 50 V 0 – 18 V High 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 120 V 0 – 120 V Resolution Low 0.1 mV 1 mV 0.1 mV 1 mV High 1 mV 10 mV 1 mV 10 mV Readback current Range Low 0 – 12 A 0 – 3 A 0 – 24 A 0 – 6 A 0 – 48 A 0 – 10 A 0 – 60 A 0 – 72 A High 0 – 120 A 0 – 30 A 0 – 240 A 0 – 60 A 0 – 480 A 0 – 100 A 0 – 600 A 0 – 720 A Resolution Low 1 mA 0.1 mA 1 mA 0.1 mA 1 mA High 10 mA 1 mA 10 mA 1 mA 10 mA Accuracy ±(0.05%+ 0.1% FS) ±(0.05%+ 0.05% FS) ±(0.05%+ 0.1% FS) ±(0.05%+ 0.05% FS) ±(0.05%+ 0.1% FS) ±(0.05%+ 0.05% FS) ±(0.05%+ 0.1% FS) Readback power Range 750 W 1500 W 1200 W 3000 W 2500 W 4500 W 6000 W Resolution 10 mW 100 mW Accuracy ±(0.2% + 0.2% FS) Protection range (typical) OPP 760 W 1550 W 1250 W 3050 W 2550 W 4550 W 6050 W OCP High 132 A 33 A 264 A 66 A 264 A 110 A 660 A 792 A OVP 130 V 530 V 130 V 530 V 130 V 530 V 130 V 130 V OTP 185 ºF (85 °C) Short circuit (typical) Current (CC) High 132 A 33 A 264 A 66 A 528 A 110 A 660 A 793 A Voltage (CV) 0 V Resistance (CR) 10 mΩ 120 mΩ 6 mΩ 60 mΩ 5 mΩ 30 mΩ 3 mΩ 2.5 mΩ General (typical) Input terminal impedance 300 kΩ 1 MΩ 300 kΩ 1 MΩ 300 kΩ 1 MΩ 300 kΩ 300 kΩ AC input 110 V/220 V ±10%, 50/60 Hz Operating temperature 32 ºF to 104 ºF (0 °C to 40 °C) Storage temperature 14 ºF to 140 ºF (-10 °C to 60 °C) Humidity Indoor use, ≤ 95% Safety EN61010-1:2001, EU Low Voltage Directive 2006/95/EC Electromagnetic compatibility Meets EMC Directive 2004/108/EC, EN 61000-3-2:2006, EN 61000-3-3:1995+A1:2001+A2:2005 (439 x 266 x 590 mm) Weight 54 lbs (24.6 kg) 142 lbs (64.4 kg) Three-Year Warranty Standard accessories User manual, power cord, certificate of calibration & test report Optional accessories TLPWR1 high current test leads