371X SERIES USER MANUAL 371X Series Programmable DC
Contents
1. Electronic Load 1 VERSION 3 0 371X SERIES USER MANUAL The following general safety precautions must be observed during all phases of operation service and repair of this instrument Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the instrument The manufacturer assumes no liability for the customer s failure to comply with these requirements A Attention I Safety 1 Users should operate according to this manual 2 There is high voltage inside the instrument please avoid touching it directly 3 Please read the user manual carefully before you use the instrument to assure your safety 4 Ground the Instrument This product is provided with a protective earth terminal To minimize shock hazard the instrument chassis and cabinet must be connected to an electrical ground The instrument must be connected to the AC power supply mains through a three conductor power cable with the third wire firmly connected to an electrical ground safety ground at the power outlet 5 Keep Away From Live Circuits Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made by qualified service person Do not split the components when power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed To avoid injuries always discon2. Mode Constant Corrent Fig 2 5 The Load Mode List 2 4 Control Switch The Load On Off switch is to turn on off the electronic load the Self PC Control switch is to set who control the electronic load the PC or the load itself J st J O 0 Fig 2 6 Control switch 20 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 5 The Tool Buttons On the top left of the main window there are 9 tool buttons Start Start communication a iy Stop Stop communication Setting setting COM Port and recording interval ID z Program Setting a Program Run Program Run a Program Stop Program Stop Running Program Eload Setting Setting load parameters Report Data report y Quit Quit the ElectronicLoad program 2 6 Keypad and Rotary dial hn A Fig 2 7 Current Power Resistance setting dial To quickly modify a parameter Current Power Resistance put the mouse on the red point of the dial and rotate To accurately set a parameter use the keypad ren Er EZ fe EE fia EE fe fo fret Eo fend e 7 Fig 2 8 Keypad 371X Series Programmable DC Electronic Load 2i VERSION 3 0 371X SERIES USER MANUAL Set Current Press I set input the current value 0 30A press ENTER to confirm Set Power Press P set input the power value 3710A 0 150W 3711A 0 300W press ENTER to conf
3. Off The load s input can be toggled on off through the Load On Off key 2 3 Menu operation The Menu operation offers some setting and adjusting functions The operation and functions are as following Operation details LCD display l l Maximum Current The LCD displays the menu functions Use the UP and i Maximum Power DOWN keys to select a function then press OK for Min Input Volt confirmation Band Rate Address Step 2 Knob Enable Program Save Option Key Lock Load Default Exit You can exit the menu operation at any point by pressing the ESC key 371X Series Programmable DC Electronic Load 9 VERSION 3 0 371X SERIES USER MANUAL 2 3 1 Setting the maximum current When you select the Maximum Current function the LCD will display Max Curr A Set the maximum current value by using the number keyboard or the New rotary knob then press OK for confirmation 2 3 2 Setting the maximum power When you select the Maximum Power function the LCD will display Max Power W Set the maximum power value by using the number keyboard or the New rotary knob then press OK for confirmation 2 3 3 Setting Minimum Input Voltage This function is used to set the minimum input voltage when the input voltage is lower than this value the 371X electronic load will automatically stop This function is used to discharge batteries When the battery s voltage drops down to the set value the lo
4. program the 371X series electronic load and define the load values current power resistance and duration of every step For more details about the programming operation please refer to 2 3 7 User s program may be stored in the 371X s nonvolatile memory for later use Up to 9 programs can be stored in the 371X To store a program please follow this operation procedure Operation details LCD display Press Store button SAVE 1 Enter the program number 1 to 9 by using the number SAVE Step 2 key or the rotary knob Press the OK button for confirmation It will return Step 3 a to Step 2 if the number is out of the range Y ou can exit the store operation at any point by pressing the ESC key 8 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 2 5 Recall a program To recall a program stored in the 371X please follow this operation procedure Procedure Operation details LCD display Press Recall button RECALL 1 Enter the program number 1 to 9 by using the number RECALL Step 2 key or the rotary knob ee Press the OK button for confirmation It will return tep to Step 2 if the number is out of the range You can exit the recall operation at any point by pressing the ESC key 2 2 6 Start a program Press Start button to run the current program 2 2 7 Stop a program Press Stop button to stop the running program 2 2 8 Load On
5. A users manual PROGRAMMABLE DC ELEC TRONIC LOAD VERSION 3 0 371X SERIES USER MANUAL SAFETY GUIDE This manual contains the precautions necessary to ensure your personal safety as well as for protection for the products and the connected equipment These precautions are highlighted with a triangle WARNING symbol in this manual and are marked according to the danger levels as follows Danger A It indicates that 1f appropriate precautions are not taken serious incidents of personal injuries and deaths or significant damages or losses to the properties will be caused Caution It indicates that if appropriate precautions are not taken injuries or losses of properties will take place Note Remind you to pay particular attention to the important information related to the products disposal of products or the specific part of documents Warning A N Only qualified personnel are allowed to debug and operate this equipment The qualified personnel are specified as those personnel who carry out commissioning grounding and apply the volume identification to the circuits equipment and systems according to the available safety practices and standards Note Only when this product is transported stored assembled and installed in a proper way and operated and maintained according to the recommendations can it implement the functions properly and reliably 371X Series Programmable DC
6. A Gok hae TS ta 4 Chapter ZO peral A A AS AAA AAA A AAA o 5 2 Connect the power SUPPly to Ine electronic odd na ete did a e betas ion Ge 5 2 Desa A 5 2 2 1 Constant Current Modest Ss 5 2 za CONAM AI Mode mienis ar a E AEE a de 7 252 07 Constant Resistance Mod a add 7i PaA SS OS A eea aaa RO R 8 LO RECA 7d POSTA Ad E AA da a 9 LLO SNA A TO A a a o a O lo O a el dd 9 Dz ON PLOT a da phd 9 DDS AA MO A le od e e te SS 9 Zi Menu Opera sii brains lila dto tol lid bi lali oi 9 Zi Siok SEUS VIC AI UA Ghana es iets ote Sle Dae A ig a Gal aa Sire tag eed ate inte iN al aa ta Re We ate hata a 10 23 2 Seino Tie MA POW Ch ise cen tural e a dupe da 10 Fie A A AAA II E Tee nremrann fren Tiree 10 DOs cunas Band RIE hed cite cut Gada yaa ede A A OM iS 10 Di a CUMS Address COZ TA AA O Saas OO II E edna ge E coin a fet centre eRe Aeaul nas 10 OO enable disable the Rotary nobis deta ote orn lat la 11 PS SO OF AN EEIE S A AAEL E haan hades tah toss ATE O EEEE EAEE E ET E ter beau ete hance be Suet tats bated TE 11 2 3 0 DAVE OPONE ahi odes trite od 12 29 NOIR the A A am n iat alate ern dic nn ce aa Ne E oO are Aaa fw aN eit aia alee eae iat te 13 ZA Load Detalla A vende warped E E abasaw Gnas tauamonauieens 13 O A ENCE Ta Mie eT a ee ert ER arene eee 13 371X Series Programmable DC Electronic Load VERSION 3 0 V1 371X SERIES USER MANUAL PART 2 Electronic Load Sot Watios 14 Chapter L Software Installation eesecsscasaviccewcxcussavev
7. CD display one number keypad and one rotary knob Please see the following pictures 1 LCD display 2 000A 0 0004 A 0 000A WATTS 0 OW Fig 1 3 LCD Display of 371 X Series electronic load 2 Arrangement of the Keyboard In general the keyboard will perform the function of the black words 1st But in the 2nd mode 1t will perform the function of the words in blue f UNEI A FUNCTION II JR SET Store Recall R sul 1 E E E ae Start Menu let 1 Ls par Stop Out onloff P set oJ Lo Le E Sm Sh Fig 1 4 Keyboard of 371X Series DC electronic load Fig 1 2 Front view of 371X Series DC electronic load The 1st line Current voltage On Off state The 2nd line Power load setting value working mode CC CP CR represent constant current constant power constant resistance mode 0 9 The number keys Load on off Load ON OFF switch R set Setting resistance value I set Setting current value P set Setting power value Store Store current program Recall Recall a saved program Start Start a program Stop Stop running program Menu Menu function operation A The up moving key WV The down moving key 371X Series Programmable DC Electronic Load 3 VERSION 3 0 371X SERIES USER MANUAL 3 Rotary knob and function keys lt 4 The left moving key Pp The right moving key ESC Escape key OK Confirmatio
8. ad switches off automatically keeping the battery from over discharge When you select Min Input Volt function the LCD will display Min Volt V Set the minimum input voltage by using the number keyboard or the News rotary knob then press OK for confirmation 2 3 4 Setting Baud Rate This function is used to set the communication baud rate When you select the Baud Rate function the LCD will display 4800 bps 2609 bps Select the Baud Rate by using the UP and DOWN keys or the rotary 19200 bps knob then press OK for confirmation 38400 bps Def 2 3 5 Setting Address 0 254 This function is used to set the address of the load To communicate with the computer or other equipment the 371X load must be assigned an address When you select Address set function the LCD will display Set Address Set the address by using the number keyboard or the rotary knob and then press OK for confirmation The valid address range is from 0 to NEWS 254 10 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 3 6 Enable disable the Rotary knob This function is to enable or disable the rotary knob Enable Def Use the UP and DOWN keys or rotary knob to select and press OK to confirm Disable 2 3 7 Program 371X Series electronic load provides a program mode for dynamic testing The user can program the 371X series electronic load and define the load val
9. allowed to operate the 371X Select the Key Lock function the LCD will display Set Password Enter a 4 numbers password then press OK to confirm 2 3 10 Load Default This function is used to restore all the parameters to the factory setting Select Load Default function LCD will display Don t Load Select Load Default and press OK to restore to the factory setting Load Default 2 3 11 Exit Select Exit to exit the menu operation 371X Series Programmable DC Electronic Load 13 VERSION 3 0 14 371X SERIES USER MANUAL ElectronicLoad Software ElectronicLoad is a free software which allow the user to monitor and control the 371X series electronic load 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL Chapter 1 Software Installation 1 1 Connect the electronic load to PC With the optional communication adapter you can connect the 371X load to your computer through RS 232 USB or RS 485 port Connect the 371X to a RS 232 port with the 3311 adapter to a USB port with the 3312 to a RS 485 with the 3314 If your computer doesn t have an RS 485 port you may choose the 3313 RS 232 gt RS 485 adapter Fig 1 1 Connect the electronic load to PC 1 2 Installation 1 2 1 Insert the software CD The CD is included with 3311 3312 or 3313 3314 adpaters into the CD ROM drive double click My Computer gt CD gt Eload gt Setup exe to start the installation the Fi
10. ast number of the value which is indicated on the LCD you can move the cursor to the first number second number etc by using 4 and gt buttons and then rotate to change each number and let it stay at 3 12 A 6 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 Ifthe keyboard is locked Stepl Press I set button Step2 Enter the password by using the number keyboard Step3 Press OK button if the password is wrong please go to step2 for reentering Step4 Rotate the Rotary to change the value the operation is the same as item 1 Step5 Press I set button to confirm the current value 2 2 2 Constant Power Mode In constant power mode the load s current will increase automatically if the input voltage is decreased or vice versa so that the electronic load will sink a constant power in accordance with the set value The power value can be set with the keyboard and or rotary knob Please see the following operation procedure Constant power setting procedure Operation details LCD display Press P set Input Password Enter the password if the keyboard isn t locked please go to Input Password Step 2 step4 ee Press the OK button the original set value will be displayed Set Power 20 0W Step 3 on the LCD It will return to step 2 if your password is wrong N ew Enter the new power value with the number keypad or rotate Set Power 20 0W S
11. at the modifications may take effect The following dialog box will be shown click Yes to close the program then restart the program from the Start menu 371X Series Programmable DC Electronic Load 25 VERSION 3 0 371X SERIES USER MANUAL x Ci Parameters have been modified you must restart the program Fig2 18 After Add Modify Delete operation the program must restart 2 12 Data Report Click the la button the data report window will be shown Data Report p x l Current fo To i Resistance jo Voltage fo To jo M Date EB 9 26 z To EB 9 26 Power fo Ta jo l Time 00000 rete 112826 2006 36 F 0257 5 0 000 0 000 ii 500 00 2006 36 FE 0257 5 0 000 0 000 0 0 500 00 2006 36 FF 025 5 0 000 0 000 0 0 500 00 2006 3 6 FE 025 3 0 000 0 000 0 0 300 00 2006 3 6 CPF 02 5 0 000 0 000 0 0 500 00 2006 3 6 FFY 3 0 000 0 000 0 0 500 00 2006 3 6 EF O28 5 0 000 13 965 0 0 300 00 2006 3 6 FFIN 5 0 000 13 365 0 0 500 00 2006 3 6 FFIN 3 0 000 13 965 0 0 300 00 2006 3 6 FFON 5 0 000 19 965 0 0 500 00 2006 3 6 FFH 3 0 000 13 965 0 0 300 00 2006 3 6 FFE lt E Excel tri Search Fig2 19 The Data Report window To search set the query condition and then click the Search button Click the Report button to watch the report Click the Excel button to export the report in Excel format To delete historic data click the Clear button Quit quit
12. ation folder dialog box displays The default folder is C Program Files Array ELoad You may click Browse to select other installation path Moa ford oe Electranic oad Installation Legs ell rated sand or Bo taba Stake Fig 1 6 The destination folder dialog box 1 2 6 The installation option dialog box displays Select Typical to install all components or select Custom to select installation components Electranicload fastallation Chi rn ion el Lan a preia Par es Neal AAA A ea Ha oe mere dl hs bet es Fig 1 7 The installation option dialog box 1 2 7 The Select Program Folder dialog box displays Specify a program folder or leave the default folder then click Next er Milectranicload Installation vara e e ong as Fia footed bok Sade e e Finl iie ee ee ee Fig 1 8 The Select Program Folder dialog box 371X Series Programmable DC Electronic Load 17 VERSION 3 0 18 371X SERIES USER MANUAL 1 2 8 Copy the files to your hard disk Mom toe sae Electranicload fastallatian Fig 1 9 Copy Files Software installation is complete when finished 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL Chapter 2 Introduction 2 1 Running the program 2 1 1 To run the ElectronicLoad program select Start gt Program gt Array gt Eload and click E3710A or E3711A to run the program m Prog ans 1 Launch Real ne M
13. ayer a Protel 9 SE Ay Windows Update Y woe 23 Pa IIN Office 3288 SOT VERDAD a MR Office XIS A adobe gt BOE 5 Template gt o gt ea 4 a Borland Delphi 5 a o EY urean TH Borland Delphi 6 gt H HMAS A DisCherge y 5 Tute Fig 2 1 Start the program 2 1 2 The ElectronicLoad startup pattern Programmable DC Electronic Load be a ae A 5 iu i oe e a i ARRAY ELECTRONIC CULTO Fig 2 2 ElectronicLoad Startup pattern 371X Series Programmable DC Electronic Load 19 VERSION 3 0 371X SERIES USER MANUAL 2 1 3 The ElectronicLoad Main Window Oj x array ITA DC Electronic Load 0 360 200W J ARRAY ELECTRONIC R E 37104 a Load Mode j O sa j O 0 15 100 250 Y L ly ME 6 0 2 50 0 150 gp 0 e 0 gt 200 IRS 500 30 0 DA OW 001 ohm I SETTING P SETTING R SETTING Voltage Curve 0 0 ElecLoad 37104 add 5 Normal normal E Sending 2006 3 9 BRAM 02 33 44PM 4 Fig 2 3 The ElectronicLoad Main Window 2 2 The ELoad List The Eload list lists all registered electronic load on the computer To make the ElectronicLoad control your load choose the load you want to use from the Eload list EE _ E37104 Fig 2 4 The Eload List 2 3 The Load Mode List From the Load Mode list you can select Load Mode Constant Current Constant Power Constant Resistance Load
14. e Address setting window Set an address that is the same as the connected electronic load Press OK to confirm 2 9 3 Setting Recording Interval setting xj COM Setting Address Other Recording Intervals 5 x Cancel Fig 2 14 Setting Recording Interval window 371X Series Programmable DC Electronic Load 23 VERSION 3 0 371X SERIES USER MANUAL 2 10 Programming Window ElectronicLoad allows user to make an own program to control the 371X load User can select the load mode and define load value current power resistance and duration of each program step Click the button the Program window will be displayed x Stepl Datal Stepl Timell Step2 Datal Step Timel Step3 D ata Step Time Step4 Datall Step4 T ime StepS D ata Step T ime fo 00 00 0 00 00 0 00 00 0 00 DO 0 00 Do Step O Data Step D Time 00 Stepb6 Data Step6 Timel Step7 Data Step7 Time StepaS D ata StepS time Step9 D ata StepS T ime oo 0 00 00 0 00 00 0 00 oo 0 00 0 00 ElectronicLoad Mod Program Stat Aun Steps da Bae a7 e Ok E i B zE Cancel a 8 One Time Fig 2 15 Programming window i Constant Curent i Repeat Constant Power f Constant Resistor Select an Electronic Load Mode enter the load value and the duration of each program step The maximum program length is 10 steps But user may decided only run part of them Use the Run Steps pus
15. es E AA AEREA ASA AAA AAA ASAS 15 kC Onnette ROE Eeron c ORETTE as a de A 15 132 TiS CAM AU Oin a E N Sl a OE a a vad We aevinal yeas 15 Chapter 2 Introducti essensen a a e a a de ee ind a a cleeseess 19 2 4 RUNING The prota dls aa r da e lia 19 DD TMG OGG BAGG Septic creat ecb une ta A E E anges aiid aie te E A E eign E A INE ETE ETE E E T 20 Zu The Eload Mode Liste sis teria alcatel dida idad aldo bado adenda dolce ie dile alocado lid 20 ZA COOL A ata ect a ta E al atta ek E el Balt at Roe ala a Nala oR Cita aaa 20 Xy NE Tool BUS oral 21 PA oad LA AA II O O Men entel te ter E Narain ater mere renee 21 2 Lhe Amp Power Resistance Voltage Meter i cove td tebe eee coda A ae ee ae ee 22 2 Dyna UN a A e E e e de E Sp e a id 22 O od O 23 ZO PEO Sram WAM OW stato da ty betta uid wre Ac palo o edad add aos da E 4aee 24 2AF Elad SCHUM wise errar diri pollo inumires 24 A a o 26 213 Use Elcctronicload sottwatecontrol yonr o daran dd AE T 27 Chapter 3 Uninstall ElectronicLoad Soma ani 28 3 1 Uninstall the Blecironicl oad SOM Wate AA ti 28 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL Chapter 1 General Introduction 1 1 General Introduction Array 371X series electronic load 1s a single input programmable DC electronic load It provides a convenient way to test DC power supplies and batteries It offers constant current mode constant resistance mode and constant power mode Program operation and control b
16. g 1 2 will be displayed l Programmable DC Electronic Load Elect Setup is preparing the InstallShield Wizard 2 which wall guide you through the rest of the setup process Please wait Fig 1 2 The Initialization of the Installation 371X Series Programmable DC Electronic Load 15 VERSION 3 0 371X SERIES USER MANUAL 1 2 2 The Welcome dialog box displays press NEXT to continue Nam eia gt m Electranicload Installation wm ara n hai lami Le papan The prapa A lr ree ms ld nr feo al Largo al Ber he rp prag pr ee e e be rt i Poe Tatah ina ir Teo a AA Dl A bje Be nae ras rs dr FR e a e ced pl A pr ard Fig 1 3 The Welcome dialog box 1 2 3 The License Agreement dialog box displays Click Yes to accept the License Agreement and proceed with the installation process Note If you do not want to accept the License Agreement click No to abort the installation process Al Electranicload Installation Peas ne Ba ir corre pri Pare he Pred OPE bay ba oe Bemi Ate et ops apama ar mp ryt ileal oo om or i opp Faa iradia I Fee ma o al o mr Poe eet pike be az Fig 1 4 The License Agreement dialog box 1 2 4 The User Information dialog box displays Enter your name and your company s name then click Next ElecrromieLoad fastallation Fig 1 5 The User Information dialog box 16 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 1 2 5 The destin
17. h bar to decide how many steps you want to run Program State is used to define whether repeat to run this program When finishing press OK to store the program and go back to the main window button to run the program press button to stop the program 2 11 Eload setting Click the i button the Eload setting window will be displayed Jib ELosdName ELoad Address B 30 1 E37104 Fig 2 16 The Eload Setting window 371X Series Programmable DC Electronic Load 24 VERSION 3 0 371X SERIES USER MANUAL The Eload Registration Records show the parameters of all registered load To add a new load click the 7 Add button 10 x ELoad Parameters ELoad ID fi ELoad Hame E3710 ELoad Address MarCurent A 30 200 oo Eza Fig 2 17 Add new load window Enter the Eload Name Address and the maximum value of current power resistance then press OK to confirm Note the Eload ID is assigned by the software The Parameter Explanation Es ee 0 30A Delete To delete a registered load select the load from the Eload Registration Records then click the button To modify a load s parameters select the load from the Eload Registration Records then click the S Modify button 15 Query To query a load click the button then enter the load name you want to query Attention after the Add Modify Delete operation the program must restart so th
18. irm Set Resistance Press R set input the resistance value 0 500Q press ENTER to confirm I Max P Max R Max show the max value of each parameter 2 7 The Amp Power Resistance Voltage Meter The Amp Power Resistance Voltage Meter show the setting and read back value of current power resistance and voltage READ E READ p gt BEL E Readback Value PET REA D pe SET y 332 2002 00266333 i yan a 56 ec EZ P ES 4D oo rim un rir a A ab Ah 15 il READ on E W E EN a D Fig 2 9 The Amp Power Resistance Voltage Meter 2 8 Dynamic Curve These curve show the dynamic states of voltage and current Current Curve Voltage Curve Oo 2 M w E th M 50 100 150 0 2 3 4 50 Fig 2 10 The Voltage Curve Fig 2 11 The Current Curve You may drag your mouse on the curve to zoom in out De 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 9 Setting 2 9 1 Setting Com port and baud rate Click the Dm button select the correct Com port and baud rate The baud rate setting should be the same as the connected electronic load COM Setting Address Other COM Port Coma GBaudHRate 9600 X conca Fig 2 12 Setting Window 2 9 2 Setting electronic load address Setting xj COM Setting Address Other Address 5 a OK gt Cancel Fig 2 13 Address Setting window Click Address to go to th
19. n key ADJUST Rotary knob The rotation dial Fig 1 5 Rotary knob and function keys 1 4 2 2 Back view Communication interface gt AAA e DEA PE POR fo EN PASA SRS MILLA l PAL a q f 7A Y f it i AL A f AN y A Ii Y gt Ey E rA Pel Y j TAN dA YAN SEH QC LUBA NNO fa E Power supply ADS 5 ms li plug P ey FA f DI HON a JN y 0 Fuse AC line voltage switch Fig 1 6 Back view The fuse can be changed easily by using a small flat screw driver Please use a fuse within the range of 0 3 0 5A 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL Chapter 2 Operation 2 1 Connect the power supply to the electronic load 371X SERIES ELECTRONIC LOAD ARRAY ism mune Fig 2 1 Connect the power supply to the electronic load 2 2 Main functions 1 Constant current mode 2 Constant power mode 3 Constant resistance mode 4 Store a program 5 Recall a program 6 Start a program 7 Stop a program 8 Load On Off 2 2 1 Constant Current Mode In constant current mode the electronic load will sink a constant current in accordance with the set value regardless of input voltage The current value can be set with the keyboard and or rotary knob Please see the following operation procedure 371X Series Programmable DC Electronic Load 5 VERSION 3 0 371X SERIES USER MANUAL Constan
20. nect power discharge circuits and remove external voltage sources before touching components 6 Do Not Substitute Parts or Modify Instrument Because of the danger of introducing additional hazards do not install substitute parts or perform any unauthorized modification to the instrument Return the instrument to a qualified dealer for service and repair to ensure that safety features are maintained II Connecting the power line 1 Inspect the power selection switch on the back panel to assure if the selected voltage is the same as environment power voltage If not please refer to the notice around the power plug 2 Before connecting the power supply please be sure that the switch on the front panel should be in the off position 3 Connect the power cable to the AC in the power supply and the 3 connector plug Please be sure that the AC power supply is grounded 4 Press the switch on the front panel to switch on the instrument and you can start to use it 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL TIT Fuse 1 The fuse is at the position of power input part on the back panel for the purpose of avoiding failure brought by using wrong voltage Please pay attention to the following items when you change the voltage input and the fuse 2 Before changing the voltage and fuse please be sure that the AC power is switching off and be sure that there 1s no other equipment connected t
21. o this instrument 3 Put a screwdriver into the fuse mounting press it and the fuse mounting will pop up 4 Pull out the fuse change it according to the label beside the power input plug Warning To avoid damaging the instrument please be sure to change a suitable type fuse Please refer to the following figure to choose an appropriate fuse in accordance with the line voltage If the input voltage needs to be changed please follow the procedures provided above to use an appropriate fuse and then set the voltage selecting switch on the back to a proper position 230VAC 115VAC IV Preparations 1 The wires and accessories connected to the Eload input terminal shall be fully insulated 2 Please turn on the instrument to warm it up for 30 minutes before putting it to use 3 Please operate the instrument according to the instructions in the manual strictly 371X Series Programmable DC Electronic Load 111 VERSION 3 0 1V 371X SERIES USER MANUAL 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL Programmable DC Electronic Load 371X SERIES Table of Contents PART1 371X Series Electronic Load Chapter L General Introduction E A sects ven sens Suet EA veteees eens OEE 1 MRS AN ET LC BL A O 1 EZ SPECIAL a a seos 1 SA A O O A actrees aa lint el tev Maint or tied nates ne 2 1 4 Dimension and SUUCtULC art rd ii 2 kA Fl AD PATA CNS ta 2 ACUSE do 3 ADA OM da 3 142 2 BaCk VEW Akon A a A E M
22. ress OK to confirm New 7 LCD will display Step 3 Set 0 00 Input the current value 3 A then press OK to confirm New 8 LCD will display Step Time 1s Input the time value 10 s then press OK to confirm New 9 LCD will display Select Repeat then press OK to confirm The programming process is completed Press ESC to return to the main menu press Start to run the program If you want to store this program for later use please see 2 2 4 2 3 8 Save Option This function 1s used to save the last load setting current power and resistance before switching off the 371X When this option has been set every time the user switches on the 371X the previous load setting will be restored automatically Select the Save Option function the LCD will display Use the UP and DOWN keys or the rotary knob to change the selection Save LP R then press OK to confirm Select Save I P R and load setting will be eo saved before the unit is switched off and will be restored automatically Don t Save Def when switched on the next time Select Don t Save def represent not to save current load setting 12 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 3 9 Lock the keyboard This function 1s used to lock the keyboard keep the load setting from unauthorized change Only the person with correct password is
23. t current setting procedure Operation details LCD display Press I set Input Password Enter the password if the keyboard isn t locked please go Input Password Step 2 to step4 ee Press the OK button the original set value will be Set Curr 2 00A displayed on the LCD It will return to step 2 if your Step 3 New password is wrong Enter the new current value with the number keypad or Set Curr 2 00A Step 4 rotate the dial to adjust the value New 3 00 Press I set button for confirmation Set Curr 3 00A Step 5 New 3 00 Press ESC to go back to the main menu You can exit the current set operation at any point by pressing the ESC key For example set constant current to 3 124 1 Setting by number keyboard Stepl Press I set button Step2 Enter the password by using the number keyboard if the keyboard isn t locked please go to step4 Step3 Press OK button if the password is wrong please go to step2 for reentering Step4 Press 3 1 and 2 button to enter the current value Step5 Press I set button to confirm the current value 0 000A 0 000V OF 0 0W 3 12A CC 2 Setting by Rotary Knob 1 If the keyboard isn t locked press I set button then directly rotate the Rotary knob the current value will be continually changed from the previous value according to the rotation At the beginning the cursor will be shown on the l
24. tep 4 the dial to adjust the value New 30 0 Press P set button for confirmation Set Power 30 0W Step 5 New 30 0 Press ESC to go back to the main menu You can exit the power set operation at any point by pressing the ESC key 2 2 3 Constant Resistance Mode In constant resistance mode the electronic load will sink a current linearly proportional to the input voltage in accordance with the set value The resistance value can be set with the keyboard and or rotary knob Please see the following operation procedure 371X Series Programmable DC Electronic Load 7 VERSION 3 0 371X SERIES USER MANUAL Constant resistance setting procedure Operation details LCD display Press R set button Input Password Enter the password if the keyboard isn t locked please Input Password Step 2 go to step4 EAN Press the OK button the original set value will be Set Resis 200 0 Q Step 3 displayed on the LCD It will return to step 2 if your ew password is wrong Enter the new resistance value with the number keypad Set Resis 200 0 Q or rotate the dial to adjust the value Bien i New 50 00 Press R set button for confirmation Set Resis 50 00 Q Step 5 New 50 00 Press ESC to go back to the main menu You can exit the resistance set operation at any point by pressing the ESC key 2 2 4 Store a program The 371X Series electronic load provides a program mode for dynamic testing The user can
25. to the main window 26 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 2 13 Use ElectronicLoad software control your load Start the ElectronicLoad program from the Eload List select the load you want to use If the desired load does not appear on the Eload List use Eload Setting to add the desired load Click the fp Setting button ensure that the Com port baud rate and address is the same as that of the load Click the gt Start button to start communication Using the Control Mode switch set the load in PC control mode You may now control the load from the computer Prior to quitting the ElectronicLoad program do remember to return the setting of your load to the Self control mode failing which you will be unable to control your load using 1t s own keyboard In the event of communications failure please check the Com port baud rate and Address settings Also ensure that the communication cable is firmly and correctly connected 371X Series Programmable DC Electronic Load 2 VERSION 3 0 28 371X SERIES USER MANUAL Chapter 3 Uninstall ElectronicLoad Software 3 1 Uninstall the ElectronicLoad Software From the Start Menu select Program gt Array gt Eload gt Uninstall Eload to unstall the software Remember to quit the program before uninstalling 371X Series Programmable DC Electronic Load VERSION 3 0 v ee eet Dm wr
26. ues current power resistance and duration of each program step To program the 371X please follow these 4 steps y Select one working mode constant current constant power constant resistance 2 Set the length of the program 3 Set the load value current power or resistance value and duration time of each step 4 Select program running mode one time or repeat For example you need to set the following program Constant Current mode Stepl 1A for 2 seconds Step2 2A for 5 seconds Step3 3A for 10 seconds Repeat running step to step3 Programming procedure is showed below 1 Select Program Set from menu operation the LCD will display Constant Curr Use the UP and DOWN keys or rotary knob to select Constant Current Constant Power mode and press OK to confirm Constant Resis 2 LCD will display Step Number Input the program length 3 and press OK to confirm New 3 LCD will display Step1 Set 0 00 Input the current value 1 A then press OK to confirm New 371X Series Programmable DC Electronic Load 11 VERSION 3 0 371X SERIES USER MANUAL 4 LCD will display Step Time 1s Input the time value 2 s then press OK to confirm New 5 LCD will display Step 2 Set 0 00 Input the current value 2 A then press OK to confirm New 6 LCD will display Step Time 1s Input the time value 5 s then p
27. y PC is also available The backlight LCD numerical keypad and rotary knob make it much easier to use It is an essential instrument for designing testing and manufacturing of many suitable products 1 2 Specifications Input Current ei X 0 000 3 999V 0 2 3mV 4 00 35 999V 0 2 30mV oltage Accurac i d 36 0 360 0V 0 2 300mV 0 000 2 999A 0 2 3mA 3 00 30 00 0 2 30mA Free application software ElectronicLoad 9 programs 10 steps each 3311 isolated TTL to RS232 adaptor 3312 isolated TTL to USB adaptor Optional Parts 3313 isolated RS232 to RS485 adaptor 3314 isolated TTL to RS485 adaptor Mounting rack 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 1 3 Features po LCD display with backlight N High resolution measurement U CC CP CR mode 4 Number keypad and rotary knob N Multifunction menu ON Over voltage over current over power over temperature polarity reversion protection J 10 steps program OO Compact and light weight NO Can be used in parallel connection 10 Can be controlled by PC 1 4 Dimensions and Structure 1 4 1 Dimensions unit mm Fig 1 1 Dimension of 371X Series Programmable DC electronic load 371X Series Programmable DC Electronic Load VERSION 3 0 371X SERIES USER MANUAL 1 4 2 Structure 1 4 2 1 Front view Front panel is for users to operate and there 1s one L
Download Pdf Manuals
Related Search