Page 3 - TABLE OF CONTENTS
3 TABLE OF CONTENTS QUICK REFERENCE ............................................. 6 The Front Panel .............................................. 6 The Rear Panel ............................................... 7 Front Panel Display ......................................... 7 Immediate Action Keys ...
Page 4 - Warranty Information
4 Warranty Information Certification We certify that this product met its published specifications at time of shipment from the factory. Assistance The above statements apply only to the standard product warranty. Warranty options product maintenance agreements and customer assistance agreements are...
Page 5 - Safety Symbols; WARNING; CAUTION
5 Safety Symbols Direct current Alternating current Both direct and alternating current Protective earth (ground) terminal Caution (refer to accompanying documents) WARNING The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or the like, which, if not correctly performed ...
Page 6 - The Front Panel; 6-character display shows voltage and current measurements.
6 Quick Reference The Front Panel 6 1 2 3 4 5 1 16-character display shows voltage and current measurements. 2 Rotary knob 3 Power switch ON/OFF 4 Entry keys: （ （ （ （ numeric keys ） ） ） ） Enter values. Increasing or decreasing the setup values. Menu commands. 5 Keypad: Enable/disable input. Setup th...
Page 7 - The Rear Panel; Pin Trigger and Remote sensing connectors.; Front Panel Display
7 The Rear Panel 4 1 2 3 1 3 Pin IEC320 ac input connector. (Power code requires ground conductor). 2 4 Pin Trigger and Remote sensing connectors. 3 9-Pin COM port interface connector. 4 Power switch (110V / 220V) Front Panel Display OFF power off Trigger Indicates that the electronic load is waitin...
Page 8 - Key Pad
8 Immediate Action Keys V-set V-set Choosing CV mode and setting the input of regulation voltage mode I-set I-set Choosing CI mode and setting the input of regulation current mode P-set Choosing CP mode and setting the input of regulation power mode R-set Choosing CR mode and setting the input of re...
Page 9 - Menu Operation
9 △△△△ Scrolling keys let you move through the commands in the presently selected function men up the next command in the list. Function menus are circular; you can return to the startin position by continuous pressing the key. ▽ ▽ ▽ ▽ Go back to the previous command in the list .Function menus are ...
Page 11 - General Information; Document Orientation; Options and Accessories; Options
11 ON When users choose the timer state ON, and then turn on the electronic load input, the LOAD ON TIMER will start working, and when the LOAD ON TIMER is reach the setup time, the electronic load input will turn off automatically,. OFF<DEFAULT> TIMER SET Setting time of LOAD ON timer. EXIT E...
Page 12 - Accessories; Description
12 IT-E151 Rack mounts kit: for installation of one or two 8500 series load on the 19 inch rack. IT-E131 isolated communication cable: This cable converts the electronic load’s serial port (TTL 5V level) to PC RS232 interface. IT-E132 isolated communication cable: This cable converts the electronic ...
Page 13 - Constant Current; CONSTANTCURRENT MODE
13 Remote Programming The electronic load may be remotely programmed from the computer via the IT-E131 isolated communication cable . Operating Modes The four modes of operation are: 1: Constant current (CC). 2: Constant voltage (CV). 3: Constant resistance (CR). 4: Constant power (CW) Constant Curr...
Page 14 - CONSTANT POWER MODE; Transient Operation; Continuous
14 LOAD CURRENT LOAD INPUT VOLTAGE I V VOLT SETTING CONSTANT VOLTAGE MODE Constant Power (CW) Mode In this mode, the electronic load’s power consumption will be in accordance with the programmed value, regardless of the input voltage. The CW mode can be set with front panel keys. The CW mode paramet...
Page 15 - Pulse; Trigger Mode; List Operation
15 10A 5A Continuous Transient Operation 2.0ms 3.0ms Pulse Switch to value B upon receiving one trigger signal , after taking the pulse time( TWD ) of value B, the load will return to Value A . 10A 5A Pulsed Transient Operation 10ms TWD 10ms TWD TRIG TRIG Trigger Mode Switches the state between valu...
Page 16 - Triggered Operation; Input Control; NOTE
16 GROUP Total = 1000 steps 1 1000 steps 2 5 00 00 00 00 steps 500 steps 4 250 steps 250 steps 250 steps 250 steps 8 120 steps 120 steps 120 steps 120 steps 120 steps 120steps 120 steps 120 steps When receiving one trigger signal, it will start the list operation until receiving another trigger sign...
Page 17 - Operation Range; Protection Features; Over Voltage; OVER VOLTAGE
17 Input On/Off Electronic load's input can be toggled on/off at the front panel. Turning the input off (zero current) does not affect the programmed settings. The input will return to the previously programmed values when the input is turned on again. NOTE The Input On/Off command supersedes the mo...
Page 18 - Remote Sense Function and Trigger Function; Pin trigger and remote sensing connectors:; REVERSE VOLTAGE
18 When working in CR, CC and CP mode, input current is ascending continuously, the load current will be limited by a current limit circuit, Load will work in the over current protection state , VFD display the information as CC. When work in CV mode, transition mode and List mode, Input current exc...
Page 19 - Wiring diagram for remote sense; Saving and Recalling Settings
19 TRIG: A TTL-compatible input that responds to external edge trigger signal. A trigger applied to this input can be used to change settings (voltage, current, resistance, etc.), toggle between settings in transient-toggle mode, or generate a pulse in transient-pulse mode. You must set the remote s...
Page 20 - Battery Testing; Capability test
20 Battery Testing A DC load is well suited to verify that a battery is working properly. Only with the correct load testing, the battery can be confirmed if it was being the expectant life curve location. The electronic loads can be used to test any type of battery. As the accumulator is used by an...
Page 22 - Inspection; Damage; Item; Cleaning; Location; Installation
22 Installation Inspection Damage When you receive your electronic load, inspect it for any obvious damage that may have occurred during shipment. If there is damage, notify the shipping carrier and nearest Agent office and Support Office immediately. Items Supplied The following user replaceable it...
Page 23 - Outline Diagram; Bench Operation; Input Connections; Power Cord
23 Outline Diagram Unit (mm) Bench Operation A fan cools the electronic load by drawing air through the button and sides and exhausting it out the back. Minimum clearances for bench operation are 25 mm along the sides. CAUTION Do not block the fan exhaust at the rear of the Load. Input Connections P...
Page 24 - Trigger and Remote Sensing Connections; Introduction; Procedure
24 Trigger and Remote Sensing Connections A 4-pin connector and a quick-disconnect mating plug are provided on rear panel for accessing input signals and remote sensing, all leads connected to the connector should be twisted and shielded to maintain the instrument's specified performance. Remote Sen...
Page 25 - In Case of Trouble; Model; Front Panel Operation; Display
25 6.Press △▽ 0.000W I: 0.000A Display the actual power value and setting value. In Case of Trouble Should the power-on self test of the Electronic Load fail, you may try the following: When turning on the power, make sure the power cord to the unit is plugged in and the power switch is in the on po...
Page 26 - Function keys; Entry Keys; Example; I-set (set up a constant current from 0 to Max current )
26 CR The selected input channel is in the resistance (CR) mode. Rmt Indicates that the electronic load is in remote state (RS-232). In the remote state, only the active key is the Local key. Tran The selected input channel is enabled for transient operation. Shift Indicates that the shift key has b...
Page 28 - On/Off input setting; Transition Testing Operation
28 Step 1 Press R-set RESISTANCE =0000R Step 2 enter a new value by using numeric keys or Rotary knob to adjust the resistance value RESISTANCE=*****R Step 3 Press Enter to confirm. 0.000W R:0000R V-set (set up a constant voltage from 1.5V to Max voltage) 8500A electronic load can be setup for a con...
Page 29 - Pulse Transient Operation
29 Transition Parameter Setting Users could press Shift + S-Tran to set the transition parameter. Shift + S-Tran LEVEL A = ***** Setup value A Enter WIDTH A = ****** Setup time width of value A Enter LEVEL B=***** Setup value B Enter WIDTH B= ***** Setup time width of value B Enter CONTINUOUS PULSE ...
Page 32 - Quick Recall Function; Automatic Testing Function of Electronic Load; Edit the Testing File
32 18) Press Enter to confirm. Quick Recall Function This function allows you to recall 10 groups numbers which were stored previously. Steps: 1) Press Shift + Menu 2) Press ▼ to CONFIG , press Enter into submenu, press ▼ to SHORTCURT RECALL 3) Press Enter , select ＞ ＞ ＞ ＞ ON and press Enter to conf...
Page 34 - Taking out the Testing File Rapidly; Automatic Testing; Setting the Resolution and number of decimal points
34 15) Repeat 9 ) ～1 4), and set the other process step by step as follows: A. CONST CURRENT,0A,SHORT OFF, READ BACK V, 5.9V, 6.4V,1S B. CONST VOLTAGE, 5V, SHORT OFF,READ BACK A, 0.205A, 0.245A,1S C. CONST VOLTAGE, 3V, SHORT OFF, READ BACK A, 0.205A,0.245A,1S D. CONST VOLTAGE, 2V,SHORT OFF, READ BAC...
Page 36 - Remote Operation Mode; Communication cable; PC; IT-E132 USB Communication cable
36 0-100W ±(1%+0.1%FS) 1mW CW Mode Regulation Input current ≥ FS 10% Input Voltage ≥ FS 10% ） 100-600W ±(1%+0.1%FS) 100mW 0-12A ±(0.1% + 0.1%FS) 1mA Current Measurement 0-120A ±(0.2%+0.15%FS) 10mA 0-18V ±(0.02% + 0.02%FS) 1mV Voltage Measurement 0-120V ±(0.02% + 0.025%FS) 10mV 0-100W ±(1%+0.1%FS) 1m...
Page 37 - Communication between electronic load and PC; Stop Bit; IT-E132 communication
37 The DB9 interface connector on the rear panel of electronic load is TTL voltage level; you can use the communication cable (IT-E132) to connect the DB9 interface connector of the electronic load and the USB interface connector of computer for the communication. PC Load IT-E131 communication cable...
Page 39 - Communication Protocol; Selecting the Remote control mode
39 51H Reading timer value of FOR LOAD ON 52H Disable/Enable timer of FOR LOAD ON 53H Reading timer state of FOR LOAD ON 54H Setting communication address 55H Enable/Disable LOCAL control mode. 56H Enable/Disable remote sense mode. 57H Reading the state of remote sense mode. 58H Selecting trigger so...
Page 42 - Setting / Reading CC mode current value
42 7. Setting / Reading CC mode current value （ （ （ （ 2AH/2BH ） ） ） ） 1 st byte Start bit ( AAH ) 2 nd byte Address (0—0XFE) 3 rd byte Command （ 2AH/2BH ） 4 th byte The lowest byte of current value 5 th byte The lower byte of current value. 6 th byte The higher byte of current value. 7 th byte The h...
Page 43 - Setting / Reading CR mode resistance value; Setting /Reading CC mode transient current and timer parameter.
43 7 th byte The highest byte of max power value 8 th to 25 th byte System reserve 26 th byte Sum code NOTE Represent power by 4 bytes of Hex. Lower bytes are in the front location, higher bytes are in the later location. For example :power is 200.000W ， Hex is 0X00030d40 ， 4th byte is 0X40 ， 5th by...
Page 44 - Setting /Reading CW mode transient watt and timer parameter
44 26 th byte Sum code 12. Setting /Reading CV mode transient voltage and timer parameter. （ （ （ （ 34H/35H ） ） ） ） 1 st byte Start bit ( AAH ) 2 nd byte Address (0—0XFE) 3 rd byte Command （ 34H/35H ） From 4 th to 7 th byte. Setting value of voltage A (Lower bytes are in the front location, higher by...
Page 48 - Reading timer state of FOR LOAD ON (53H)
48 5 th byte The highest byte of time value in timer. From 8 th to 25 th byte System reserve 26 th byte Sum code Time unit in Timer is S, 1S is represented by 1. 27. Disable / Enable timer of FOR LOAD ON (52H); Reading timer state of FOR LOAD ON (53H) 1 st byte Start bit ( AAH ) 2 nd byte Address (0...
Page 50 - Enter the calibration mode
50 later location) From 12 th to 15 th byte Actual input power value (Lower bytes are in the front location, higher bytes are in the later location) 16 th byte Operation state register From 17 th to 18 th byte Demand state register From 19 th to 25 th byte System reserve 26 th byte Sum code BIT Sign...
Page 51 - Getting the calibration mode state; Sending the actual input voltage to calibration program
51 If Load is not in protection state, users could do the calibration operation. 37. Getting the calibration mode state （ （ （ （ 61H ） ） ） ） 1 st byte Start bit ( AAH ) 2 nd byte Address (0—0XFE) 3 rd byte Command （ 61H ） 4 th byte Calibration protection state From 5 th to 25 th byte System 26 th byt...
Page 52 - Setting / Reading calibration information
52 40. Calibrate current value （ （ （ （ 64H ） ） ） ） 1 st byte Start bit ( AAH ) 2 nd byte Address (0—0XFE) 3 rd byte Command （ 64H ） 4 th byte Current calibration point （ 1~4 ） From 5 th to 25 th byte System reserve 26 th byte Sum code NOTE Current calibration standard points have four: 1,2,3,4 41. S...
Page 53 - Reading product’s model, series number and version information
53 3 rd byte Command （ 67H/68H ） From 4 th to 23 rd byte Demarcate information （ ASIC code ） 24 th byte System reserve 25 th byte System reserve 26 th byte Sum code 44. Restore the factory default calibration data （ （ （ （ 69H ） ） ） ） 1 st byte Start bit ( AAH ) 2 nd byte Address (0—0XFE) 3 rd byte C...
Page 54 - b t h
54 From 4 th to 22 nd byte Information in bar code （ ASICmode ） From 23 rd to 25 th byte System reserve 26 th byte Sum code Bar code rule ： ： ： ： All of bar cod of our products is distinguished by the former three characters. Al 47. Setting information of bar code （ （ （ （ 6CH ） ） ） ） 1 st byte Start...
Page 55 - Service Information; Limited One-Year Warranty
55 Service Information Warranty Service: Please return the product in the original packaging with proof of purchase to the address below. Clearly state in writing the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service...
Page 56 - Declaration of CE Conformity
Declaration of CE Conformity according to EEC directives and NF EN 45014 norm Responsible Party Alternate Manufacturing Site Manufacturer’s Name: B&K Precision Corporation B&K China 1235 Manufacture’s Address: 22820 Savi Ranch Pkwy.Yorba Linda, CA 92887-4610USA Declares that the below mentio...
