BK Precision 8600 User Manual
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BK Precision 8600 User Manual

Programmable dc electronic loads
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Model: 8600, 8601, 8602, 8610, 8612, 8614, 8616, 8620, 8622,
8624, and 8625
Programmable DC Electronic Loads
USER MANUAL

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Summary of Contents for BK Precision 8600

  • Page 1 Model: 8600, 8601, 8602, 8610, 8612, 8614, 8616, 8620, 8622, 8624, and 8625 Programmable DC Electronic Loads USER MANUAL...

  • Page 3: Safety Summary

    Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument. Before applying power to this instrument:  Read and understand the safety and operational information in this manual. ...
  • Page 4 Category IV (CAT IV): Measurement instruments whose measurement inputs are meant to be connected to the primary power entering a building or other outdoor wiring. Do not use this instrument in an electrical environment with a higher category rating than what is specified in this manual for this instrument.
  • Page 5 Do not operate in an explosive or flammable atmosphere Do not operate the instrument in the presence of flammable gases or vapors, fumes, or finely- divided particulates. The instrument is designed to be used in office-type indoor environments. Do not operate the instrument ...
  • Page 6 cord, remove the instrument from service, label it as not to be operated, and return the instrument to B&K Precision for repair. Notify B&K Precision of the nature of any contamination of the instrument. Clean the instrument only as instructed Do not clean the instrument, its switches, or its terminals with contact cleaners, abrasives, lubricants, solvents, acids/bases, or other such chemicals.
  • Page 7 Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists. Fuse replacement Fuse replacement must be done by qualified service-trained maintenance personnel who are aware of the instrument's fuse requirements and safe replacement procedures. Disconnect the instrument from the power line before replacing fuses.
  • Page 8 Do not short-circuit batteries When using a DC load to discharge a battery, do not exceed the battery manufacturer's specified maximum rate of discharge. Use correctly sized wires To connect the load to the power supply, use a wire diameter large enough to handle the maximum continuous output short-circuit current of the power supply without the wire overheating.

  • Page 9: Compliance Statements

    Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE) , and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be...

  • Page 10: Ce Declaration Of Conformity

    CE Declaration of Conformity The instrument meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnetic Compatibility Directive with the following standards. Low Voltage Directive EN61010-1: 2001 EMC Directive EN 61000-3-2: 2006 EN 61000-3-3: 1995+A1: 2001+A2: 2005 EN 61000-4-2 / -3 / -4 / -5 / -6 / -11 EN 61326-1: 2006 viii...

  • Page 11: Safety Symbols

    Safety Symbols CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. Chassis (earth ground) symbol. On (Power) Off (Power) On (Power).

  • Page 12: Table Of Contents

    Table of Contents Safety Summary ....................i Compliance Statements ......................vii CE Declaration of Conformity....................viii General Information ..................1 Product Overview ......................1 Package Contents ......................2 Product Dimensions ......................2 Rackmount Installation ....................6 Front Panel Overview ...................... 7 Front Panel Description ......................
  • Page 13 Constant Current (CC) Mode ....................20 Constant Voltage (CV) Mode ....................23 Constant Resistance (CR) Mode .................... 24 Constant Power (CW) Mode ....................25 Setting CC, CV, CR, CW Mode ....................27 SYSTEM Menu ....................... 27 Restore Factory Default Settings ................... 28 Configure Power-On State .....................
  • Page 14 OPP Test Function ........................74 3.10 Key Lock......................... 77 Remote Operation ..................78 Interface Connection..................... 78 RS-232 ........................... 78 GPIB ............................79 USBTMC ..........................79 Remote Commands ....................... 79 Troubleshooting Guide ................80 General ..........................80 Remote Control ........................80 Specifications .....................

  • Page 15: General Information

    1 General Information 1.1 Product Overview The 8600 Series DC Electronic Loads are versatile instruments used for static and dynamic testing of DC power supplies, batteries, DC-to-DC converters, and battery chargers. Other applications include fuel-cell and photovoltaic cell test. The DC load can be used in one of the following operation modes: constant voltage (CV), constant current (CC), constant resistance (CR), or constant power (CW).

  • Page 16: Package Contents

    Report any damage to the shipping agent immediately. Save the original packing carton for possible future reshipment. Every instrument is shipped with the following contents:  1x 8600 series DC Electronic load  1x User Manual  1x AC Power Cord ...
  • Page 17 Figure 1 – Front and Side View (Half-rack models) Figure 2 - Front and Side View (Full-rack 3U models)
  • Page 18 Figure 3 Front and Side View (Full-rack 6U models)
  • Page 19 Figure 4 - Rear View (Half-rack models) Figure 5 - Rear View (Full-rack 3U models)

  • Page 20: Rackmount Installation

    Figure 6Rear View (Full-rack 6U models) 1.4 Rackmount Installation The instrument can be installed in a standard 19 inch rack. For half-rack models, the optional rackmount kit IT-E151 is required (No rackmount kit required for full-rack models). Below is an image of a half-rack model installed with the IT-E151 rackmount kit.

  • Page 21: Front Panel Overview

    This rackmount kit will allow up to two half-rack models installed side by side, as shown below. 1.5 Front Panel Overview Figure 7 – Front Panel (Half-rack models)

  • Page 22: Front Panel Description

    Figure 8 - Front Panel (Full-rack models) Front Panel Description Power On/Off switch Local button Shift button Numeric keypad CC/OCP button CW/OPP button Enter/Recall settings button Input On/Off and key lock button CR button CV/Setup button Navigation arrow keys Input terminal Rotary knob VFD display ESC button...

  • Page 23: Rear Panel Overview

    Trans button (Full-rack models) List button (Full-rack models) 1.6 Rear Panel Overview Figure 9 - Rear Panel (Half-rack models) Figure 10 - Rear Panel (Full-rack models)

  • Page 24: Rear Panel Description

    Rear Panel Description Cooling fan vent Remote control port (not used) RS232 Interface Current Monitor BNC output USB Interface GPIB Interface AC input receptacle Fuse box Line voltage selector Voltage fault (VF) output terminal Input On/Off (ON) control terminal External trigger input terminals External programming input terminals Remote sense terminals Input Terminal (Full-rack models)

  • Page 25: Display Description

    Display Description Measured input voltage Measured input power Settings Display Displays parameter settings such as CC, CV, CR, CW Measured input current Indicates input is disabled Indicates constant current (CC) operation Indicates constant voltage (CV) operation Indicates constant resistance (CR) operation Indicates constant power (CW) operation Indicates remote mode Addr...

  • Page 26: Getting Started

    2 Getting Started Before connecting and powering up the instrument, please review and go through the instructions in this chapter. 2.1 Input Power and Fuse Requirements Input Power The load has a selectable AC input that accepts line voltage input within: Voltage: 115 V (+/-10%) or 230 V (+/- 10 %) Frequency: 47 Hz –...

  • Page 27: Fuse Requirements

    110 VAC or 220 VAC input. Table 1 - Fuse Requirements Model Fuse Specification (110 VAC) Fuse Specification (220 VAC) 8600 T 1.25 A, 250 V T 500 mA, 250 V 8601 T 1.25 A, 250 V...

  • Page 28: Input Connections

    Fuse box slit Fuse Check/Remove Fuse Figure 13 - Fuse Box 2.2 Input Connections The main DC input terminal is a screw type binding post terminal located in the front panel. To loosen, turn the terminal cap counter-clock wise. Note: The screws on the terminals can be completely removed to allow for ring type adapters (must be greater than 6mm in diameter).

  • Page 29: Preliminary Check

    2.3 Preliminary Check Complete the following steps to verify that the load is ready for use. Verify AC Input Voltage Verify and check to make sure proper AC voltages are available to power the instrument. The AC voltage range must meet the acceptable specification as explained in “2.1 Input Power and Fuse Requirements”.

  • Page 30: Input Check

    Table 2 - Self-test Messages Error Message on Display Description EEPROM FAILURE The internal EEPROM is corrupted or damaged. Config Data Lost The last operation data within the EEPROM is lost. Calibration Data Lost Calibration data within the EEPROM is lost. FactoryCal.Data Lost Factory calibration data is lost.

  • Page 31: Check Model And Firmware Version

    2. The display will show the following: 0.000V 0.000A 8600 Ver : 1.29 – 1.36 3. The model is shown above as 8600, and the firmware version is shown as 1.29-1.36. 4. Press once to return to the normal display.

  • Page 32: Front Panel Operation

    3 Front Panel Operation 3.1 Menu Options Most settings and parameters can be configured from the built-in menu systems of the instrument. There are two main menus: System and Config. System Menu To access the system menu, press ) then The system menu will have the following options: Initialize Reset load settings to factory default values.

  • Page 33: How To Navigate The Menu

    How to Navigate the Menu Before using the instrument, it is important to be familiarized with its menu structure and learn how to view or change settings and parameters. Follow the steps below to guide you in selecting menu options. 1.

  • Page 34: Configure Operation Modes (Cc/Cv/Cr/Cw)

    3.2 Configure Operation Modes (CC/CV/CR/CW) The electronic load can work in the following modes: 1) Constant current (CC) operation mode 2) Constant voltage (CV) operation mode 3) Constant resistance (CR) operation mode 4) Constant power (CW) operation mode Constant Current (CC) Mode In this mode, the electronic load will sink a current in accordance with the programmed value regardless of the input voltage.
  • Page 35 The setup parameters are: Range, High (Voltage limit), Low (Voltage limit), and Rise/Fall time. Use the ) key to select each parameter, and use the numeric keypad to change the value. Press to confirm the change. Range Use the numeric keypad to change the range. This value will also act as a limit to how much current the load can be configured to.
  • Page 36 Slew Rate Measurement and Actual Transition time Current slew rate is defined as the change in current over time. A programmable slew rate allows a controlled transition from one load setting to another. The actual transition time is defined as the time for the input to change from 10% to 90%, or 90% to 10% of the programmed current values.

  • Page 37: Constant Voltage (Cv) Mode

    Constant Voltage (CV) Mode In this mode, the electronic load will attempt to sink enough current to control the source voltage to the programmed value. Configure CV Parameters There are several parameters that should be set up prior to operating in CV mode. Press so that it lights up, then press ) and to access Setup for CV mode.

  • Page 38: Constant Resistance (Cr) Mode

    High This parameter refers to the current high limit for the automatic test mode. During automatic test mode, the device under test (DUT) must be operating below the configured value for the test to PASS upon completion. If the DUT operates above the configured value, the test will FAIL upon completion.

  • Page 39: Constant Power (Cw) Mode

    Constant Resistance R ang e =7500. 0Ω The setup parameters are: Range, High (Voltage limit), and Low (Voltage limit). Use the ) key to select each parameter, and use the numeric keypad to change the value. Press to confirm the change. Range Use the numeric keypad to change the range.
  • Page 40 Configure CW Parameters There are several parameters that should be set up prior to operating in CW mode. Press so that it lights up, then press )and to access Setup for CW mode. The setup menu will be shown: Constant Power R ang e =250.0 0 W The setup parameters are: Range, High (Voltage limit), and Low (Voltage limit).

  • Page 41: Setting Cc, Cv, Cr, Cw Mode

    test to PASS upon completion. If the DUT operates above the configured value, the test will FAIL upon completion. Note: This parameter is used for Automatic Test Function ONLY. This parameter refers to the voltage low limit for the automatic test mode. During automatic test mode, the DUT must be operating above the configured value for the test to PASS upon completion.

  • Page 42: Restore Factory Default Settings

    SYSTEM MENU In it i ali ze Po we r -O N Bu zze r Restore Factory Default Settings All instrument settings can be reset back to their factory default values by doing the following: Note: Restoring the instrument to factory default will change all current instrument settings and parameters back to their default values.

  • Page 43: Configure Power-On State

    Memory Group 0 Power-On Buzzer Load On Knob Update On Timer Voltage Auto Range Averaging Filter 2^14 Remote Sense External Program Configure Power-On State The initial Power-On state of the load can be configured by following the steps below: 1. From the SYSTEM menu, select Power-On and press 2.

  • Page 44: Configure Trigger Source

    Configure Trigger Source The trigger function is used to initiate the start of a program in list mode and also as a toggle for transient mode. The trigger source can be set so that users can send a trigger from the front panel, through a remote command via remote interface or through the external trigger input in the rear panel.

  • Page 45: Save/Recall Instrument Settings

    4. To exit the menu at any time, press twice. Save/Recall Instrument Settings The instrument can save up to 100 instrument settings in non-volatile memory. Memory is allocated in 10 different storage groups (group 0 to 9), and each group has 10 memory locations to store settings (0 to 9).
  • Page 46 Example: Settings are saved to memory location 60. To recall those settings, set storage group to 5 from the menu, then press recall and the number Select Storage Group 1. From the SYSTEM menu, browse and select Memory and press .
  • Page 47 12.000A 80.000V 0.0 0 W S ave 3. Use the current adjust knob or the numeric keypad to enter the memory location in which to store current instrument settings. Select between 0 – 100. Press save to the selection location. NOTE: The “0”...

  • Page 48: Display Input On Timer

    Display Input On Timer The instrument has an internal timer that counts how long the input has been enabled (ON). Follow the steps below to enable the timer display. 1. From the SYSTEM menu, browse and select Displ and press .
  • Page 49 Note: The RMT indicator will appear on display when the instrument is successfully connected to a PC remotely through any remote interface. Keys on the front panel will be locked until the instrument is in LOCAL mode. To return to LOCAL mode from the front panel, press and then ) .
  • Page 50 Parity: N (None), E (Even), O (Odd) Stop bit: 1 Flow control: NONE, CTS/RTS, XON/XOFF Note: The default is 4800, 8, N, 1, NONE. *Setting the baud rate to 115200 may provide unstable results during remote communication. Select a lower baud rate if communication errors occur. 5.

  • Page 51: Config Menu

    3.4 CONFIG Menu All setup procedures and settings explained in this section can be accessed from the CONFIG menu. To access this menu, press ) and ). The following screen will show: CONFIG MENU V on P rote ct Me asu re CR_ LED Von Operation The Von voltage value can be set to control the voltage turn on state for the electronic load.
  • Page 52 Figure 15 - The Load's Operating Range with Von Latch set to ON When Von Latch is OFF, the electronic load will begin sinking current if the input voltage exceeds the Von voltage. When the input voltage drops below the Von voltage value, the electronic load will still continue sinking current and the input remains on.
  • Page 53 Figure 16 - Von Latch OFF The Load's Operating Range with Von Latch set to OFF To set the Von modes, from the CONFIG menu, select Von and press . The following will be displayed: VON LATCH O ff Use the ) keys to select between On or Off and press confirm selection.

  • Page 54: Configure Protection Settings

    Configure Protection Settings The electronic load has the following protection functions: Overvoltage protection (OVP), overcurrent protection (OCP), overpower protection (OPP), overtemperature protection (OTP), and local and remote reverse voltage protection (LRV/RRV). The instrument will act appropriately once any of the above protections are active. You can press any button on the front panel to restore the protection function.
  • Page 55 5. It will then prompt to enter a value for Delay. This is the protection trip delay, which is the amount of time to delay from when the input has reached the limit before triggering OCP. Use the numeric keypad or rotary knob to enter a value, then press confirm change.
  • Page 56 Software OPP - Users can set the electronic load’s software OPP value with the following steps. 1. Go to CONFIG menu and select Protect. Then press 2. Select P-limit and press 3. To enable software OPP, select On and press .
  • Page 57 Overtemperature Protection (OTP) There is an overtemperature protection circuit, which will turn off the input if the internal temperature exceeds safe limits. When the electronic load’s internal circuit temperature is over 85C, the load will enable OTP. Input will automatically be turned off and the VFD will display OTP.

  • Page 58: Configure Timed Input

    Configure Timed Input The load has a built-in timer function that can be configured to allow enabling (ON) the main input for a specified amount of time. To configure this time, follow the steps below: 1. Go to CONFIG menu and select Protect. Then press 2.
  • Page 59 3. To enable voltage auto range, select On and press . To disable, select Off and press to confirm the change. Measuring Rise and Fall Time The instrument can measure the rise or fall time from a specified start and stop voltage level of the measured input.

  • Page 60: Cr Led Function

    CR LED Function CR LED is a function that allows the instrument to simulate the loading behavior of typical LEDs, which can be used for testing LED drivers. When the function is enabled, the load allows the user to configure the LED’s operating resistance and forward voltage along with the voltage range (same as CR operation).

  • Page 61: Remote Sense

    5. Use the numeric keypad or rotary knob to enter the values for Range, Voltage High, Voltage Low, and Vd. Vd will be the forward voltage of the LED you want to simulate. This option will only appear after CR_LED has been enabled from the CONFIG menu. 6.

  • Page 62: External Analog Control And Monitor

    7. To enable remote sense, go to CONFIG menu and select Remote-Sense and press 8. Select On to enable or Off to disable remote sense. The default is Off. 9. Once it is turned on, the Sense annunciator will appear at the top of the display. S e n s e 12.000A 80.000V...
  • Page 63 4. Connect the external analog control pins from the rear panel of the instrument to your voltage control source as shown below: Rear Panel Terminals External Voltage Source 0 – 10 V Figure 19 - Analog Control Setup 5. Set the instrument to CC mode and enable the input to begin controlling with the external voltage source.

  • Page 64: Short Operation

    Disable (OFF) input: Disconnect the short between the two pins. Note: The external analog control does not have to be turned ON from the menu for these pins to function as intended. To avoid accidentally turning ON the load’s input, keep these pins opened with nothing connected when external On/Off control is not used or needed.

  • Page 65: Transient Operation

    3.6 Transient Operation Transient operation enables the module to periodically switch between two load levels, as might be required for testing power supplies or other DC sources. There are three different transient testing modes: continuous, pulse, and toggle. Continuous Generates a respective pulse stream that toggles between two load levels. Pulse Generates a load change that returns to its original state after some time period.

  • Page 66: Pulse

    Figure 20 - Continuous Transient Operation Current Waveform Pulse In this mode, the electronic load generates a transient pulse of programmable width when pulse transient operation is in effect. In pulse mode, you can set A/B level, the pulse width, and A/B slew rate. The electronic load will automatically switch to A level after maintaining A width time.
  • Page 67 Figure 22 - Toggle Transient Operation To enable and setup transient mode, follow the steps below: 1. First, select the load’s mode of operation, which will determine which type of transient operation will be configured. Press to select between CC, CV, CW, or CR mode. Verify the selection by the backlight behind its corresponding button, which will be lit when selected.
  • Page 68 TRANSITION Con tin uous Pul se To g gl e 4. Select the transient mode Continuous, Pulse, or Toggle. Press 5. For CC mode, the following display will show. For all other modes, skip to step 9. TRANSITION Hi gh -R ate Lo w -R ate 6.
  • Page 69 11. The load will return to the Transient menu. Press to return to the normal display. The Trig annunciator will appear and the display will look like below. T r i g 12.000A 80.000V 0.0 0 W 0 0000.0 S 1 TRA N 12.

  • Page 70: List Operation

    3.7 List Operation List mode lets you generate complex sequences of input changes with rapid, precise timing. This is useful when running test sequences with a minimum amount of overhead. The parameters of List operation include the name, number of steps (2-84), step width time (20us-3600s), and every steps’...

  • Page 71: Configure List

    Configure List Follow the steps below to configure list operation: 1. From the front panel, press and then (or press ). The following display will show: LIST R e cal l Edi t 2. Select Edit and press . The following display will show: EDIT LIST Hi gh -R ate Lo w -R ate...
  • Page 72 EDIT LIST S te p 001 Le v el = 0.0000 A 7. Press and it will prompt to enter the slew rate of the step. If High-Rate was selected earlier, units will be in A/us. Otherwise, it will be in A/ms. EDIT LIST S te p 001 Rat e = 0.0001 A/us...

  • Page 73: Run List

    Run List To run a list, follow the steps below: 1. From the List menu, select Recall and press . The load will prompt for the memory location of the list to recall. Enter between 1 – 7 and press to recall.

  • Page 74: Battery Test Function

    6. To disable list operation, first press to disable the input and then press (or press ). Select Off and press to confirm. The Trig annunciator will disappear when list operation is disabled. 3.8 Battery Test Function The load has a built-in battery test function that uses CC mode and calculates the battery capacity using a fixed current load.

  • Page 75: Test Operations

    6. Lastly, it will prompt to enter the Stop Timer. Use the numeric keypad or rotary knob to enter a time value in seconds. Then press to finish the setup. 7. The display will then show the following: OFF CC 0.000A 10.000V 0.0 0 W...
  • Page 76 the Automatic Test sequence, prior to running the automated test. Please see the Configure CC Parameters, Configure CV Parameters, Configure CR Parameters, and/or Configure CW Parameters configuration sections to set these parameters. Configuring Instrument Settings The automatic test runs a program that uses the settings stored into the internal EEPROM memory.
  • Page 77 PROGRAM 9 Sequence Save Group PROGRAM 10 Sequence Save Group Example: In Program 1, sequence 1 correlates to instrument settings stored in memory location 1. In Program 5, sequence 5 correlates to instrument settings stored in memory location 45. In Program 8, sequence 10 correlates to instrument settings stored in memory location 80. Within each program, sequences can be activated or deactivated (skipped), but they run in order from 1 through 10.
  • Page 78 0.5 W 2 Ω 3.8 A 0.5 A 2.8 V Refer to section “Save/Recall Instrument Settings” in section “3.3 SYSTEM Menu” for details on saving settings into internal memory. Note: If the program requires more than 10 sequences, each program can be linked (chained) to another program after it has completed.
  • Page 79 . The activated sequence numbers on the display will change to Y, indicating that they are active and will be run as part of the test program. In this example, the display will look like below: EDIT PROGRAM A c ti ve S eque nc e = 09 876Y YYYY To deactivate, press the corresponding number with the numeric keypad again.
  • Page 80 EDIT PROGRAM □□□□□□ S ho rt S equen ce = 4Y2Y 5. Press to continue. The display will show the following: EDIT PROGRAM S EQ 01 Ti me 0.0 S SEQ01 will be shown if sequence 1 is activated. Otherwise, it will display SEQXX where XX is the first sequence number in the program that is activated (starts from 1-9 and then 0).
  • Page 81 0 ≤ T pf ≤ (T on + T off ) Tpf = P/F Delay Time T on = On Time T off = Off Time Use the numeric keypad or rotary knob to enter a value. Then press 8. If there are more than one active sequence, the load will repeat the prompts to configure the On Time, Off Time, and P/F Delay Time.
  • Page 82 numeric keypad or rotary knob. Then press to confirm and save all settings to the selected program number. The display will not return to the PROGRAM menu. Recall and Run Program The following is a procedure to recall and run a saved test program. Recall a Program 1.
  • Page 83 OFF CC 0.000A 10.000V P R G01 ST OP PRG01 from this display indicates which program has been loaded to run. Depending on which program is recalled, it will show PRG01-PRG10. STOP indicates the program is not running. 4. Now, press ) once to start running the program.
  • Page 84 OFF CC 0.000A 10.000V P R G01 -01 o ff k e y p ass At this point, the program is in a pause state. To continue the test, press ) once. Note: At any time while the program is in the running state, if you wish to re-test a sequence or test a previous sequence, press the ) key.

  • Page 85: Ocp Test Function

    If there is a failure, fail will be indicated in place of pass. At this point, you can press ) to view which sequences were tested and passed/failed. It will be indicated like the following: OFF CC 0.000A 10.000V □□□□□□ P R G01 : 4 Y2Y p ass...
  • Page 86 Start Current This is the starting current value when OCP test begins. The settable range of this value is limited by Current Range. Step Current This is the size of the step current as the test runs from the Start Current to End Current.
  • Page 87 Enter a value for Voltage On Delay. This can be set between 0.00s and 99.99s. Then press to continue. Follow the same steps for Current Range. The value must be within the maximum input limits of the load. Press to continue. Set the Start Current.

  • Page 88: Opp Test Function

    OFF CC 0.000A 10.000V 0.0 0W 0. 0000 A St op Press to start the test. When the test is running, Run will be indicated in place of Stop. When the test ends, either Pass or Fault will appear next to Stop.
  • Page 89 Delay. Step Delay This is the delay time to hold each power step in the test. This determines how fast or slow to run through the test. End Power This is the ending power value before OPP test ends. The test will only run through in steps from Start Power to the End Power if input voltage is greater than the OPP Voltage.
  • Page 90 Follow the same steps for Step Power and End Power. Press after each settings to continue. Enter a value for OPP Voltage and press to continue. Enter a value for Max Trip Power, and then Min Trip Power. Press after each settings to continue. The load will prompt to Save OPP File.

  • Page 91: Key Lock

    Press ) to start the test. When the test is running, Run will be indicated in place of Stop. When the test ends, either Pass or Fault will appear next to Stop. To stop the test at any time, press 3.10 Key Lock The front panel keys can be locked to prevent unwanted changes to output settings and...

  • Page 92: Remote Operation

    4 Remote Operation 4.1 Interface Connection RS-232 For RS-232 connectivity, refer to the diagram below for pinout information. The RS-232 is labeled in the rear panel and it is a female DB-9 interface. Table 6 - RS232 Pin Outs Description Transmit Data Receive Data A straight pin-to-pin DB9 female to DB9 male serial cable is required for using the RS-232...

  • Page 93: Gpib

    GPIB The load can be configured with a GPIB address from 0 – 31. To communicate via GPIB, connect a GPIB cable to the GPIB interface on the rear panel, as illustrated below. USBTMC The device is SR1, RL1, and DT1 enabled. It can receive the following request: REN_CONTROL, GO_TO_LOCAL, LOCAL_LOCKOUT.

  • Page 94: Troubleshooting Guide

    5 Troubleshooting Guide Below are some frequently asked questions and answers. Please check if any apply to your instrument before contacting B&K Precision. General Q: I cannot power up the instrument. Check that the power cord is securely connected to the AC input and there is live power from your electrical AC outlet.

  • Page 95: Specifications

    Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient temperature range of 23 °C ± 5 °C. Specifications are subject to change without notice. Model 8600 8601 8602 Input Ratings Input Voltage 0 –...
  • Page 96 Models 8600 8601 8602 Transient Mode (CC mode) T1 & T2 20 µs – 3600 s / Resolution: 10 µs Accuracy 5 µs + 100 ppm Slew Low Rate 0.001-2.5 A/ms 0.001-1 A/ms Rate High Rate 0.001-2.5 A/µs 0.001-1 A/µs...
  • Page 97 Model 8610 8612 8614 8616 Input Ratings Input Voltage 0 – 120 V 0 – 500 V 0 – 120 V 0 – 500 V 0 – 12 A 0 – 3 A 0 – 24 A 0 – 6 A Input Current High...
  • Page 98 Models 8610 8612 8614 8616 Transient Mode (CC mode) T1 & T2 20 µs – 3600 s/Resolution: 10 µs Accuracy 5 µs + 100 ppm 0.001-0.25 A/µs 0.0001-0.1 A/µs 0.001-0.25 A/µs 0.0001-0.1 A/µs Rate Slew Rate High 0.01-2.5 A/µs 0.001-1 A/µs 0.01-2.5 A/µs 0.001-1 A/µs Rate...
  • Page 99 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.
  • Page 100 Models 8620 8622 8624 8625 Transient Mode (CC mode) T1 & T2 20 µs – 3600 s/Resolution: 10 µs Accuracy 5 µs + 100 ppm 0.001-0.25 A/µs 0.0001-0.1 A/µs 0.001-0.25 A/µs 0.001-0.25 A/µs Rate Slew Rate High 0.01-2.5 A/µs 0.01-1 A/µs 0.01-2.5 A/µs 0.01-2.5 A/µs Rate...

  • Page 101: Supplementary Characteristics

    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.
  • Page 102 Dimensions and weight Dimensions (W x H x D) (excludes Model Weight front and rear rubber bezels and side handle) 8600 218 x 90 x 387 mm 4.5 kg 8601 218 x 90 x 387 mm 4.5 kg 8602 218 x 90 x 387 mm 4.5 kg...

  • Page 103: Calibration

    7 Calibration It is recommended that the instrument be returned to B&K Precision for service and periodic calibration to ensure the instrument is performing within its specifications. B&K Precision recommends calibrating the instrument once per year.

  • Page 104: Index

    Index AC input, 12 Menu, 18 Automatic Test, 21, 24, 25, 27, 32, 61 Remote sense, 47 Constant Current, 20 Restore Factory Default, 28 Constant Power, 25 RMT, 35 Constant Resistance, 24 Self Test, 15 Constant Voltage, 23 Self-test, 15 Firmware Version, 17 Short, 50 Fuse, 13...
  • Page 105 INFORMATION SERVICE Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #. Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device.
  • Page 106 LIMITED THREE-YEAR WARRANTY B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three years from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.
  • Page 107 22820 Savi Ranch Parkway Yorba Linda, CA 92887 www.bkprecision.com © 2017 B&K Precision Corp. Printed in China v072017...

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