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KG ELS-304, Operation Manual

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ELS-304

 
 

Operations

 

4-1 

 

4. Operations 

 

Names and functions of the operation panel, menu selection, memory function, and 

configuration setting are described. 

 

 

 

4.1

 

Operation Panel

 

 

 
 

 
 

 

 
 

 

 
 

 

 
 

 
 

 

 
 

(1)  Function keys 

These function keys are used to recall function allocated for each menu selected. 
 

  

(2) Ten keys 

These keys are for setting values like load current. 

 

 
(3)  Rotary knob  

With this convenient knob, you can increase/decrease a setting value or change item to 
be selected. And this knob can be used as a button to confirm the selected value.   

 

 
(4)  ON/OFF switch  

This switch is for setting Load ON/OFF.    When Load ON, the LED above this switch is 

turned ON.   

 

 

(5)  ENT key  

This key is for confirming inputted value(s) and selected conditions. 

 

 

(6)  CE key  

This key can be used to cancel data input and a commend you selected.   

 

 

(7) Menu key 

This key is used to select menu.   

 

 
 

 

7

4

1

0

.

2

5

8

9

6

3

CE

ENT

ON/OFF

F1

F2

F3

MENU

(1)

(2)

(3)

(6)

(5)

(4)

(7)

Summary of Contents for ELS-304

Page 1: ...ELS 304 High SPEED Electronic Load OPERATION MANUAL Engineering Company SERIES ...

Page 2: ...t Please read this manual carefully before using this product This manual should be kept in a place accessible easily Please attach this manual to this product when you relocate them This manual is written based on the functions of this product when shipped from KG The specifications are subject to change without any notice Trademarks MicrosoftWindows MicrosoftExcel ActiveX VisualBasic and VisualC...

Page 3: ...tected If you use this Product in the strong electromagnetic field because of the characteristics of this product the noise induced on the input cable may be also regarded as the signal and measured to affect the measurement result Do not use in such surroundings Please do not palace this product where it will be subject to direct sunlight or high temperature Please follow the instruction to use t...

Page 4: ...se the proper Fuse with the same shape rated and the characteristics The rated of this fuse is 250V 3 15A Operator It is suggested that the operator of this product should have proper Engineering background in Electronics and understand the descriptions in this manual before start using If an operator doesn t have such background the operator has to operate this product under the supervision of th...

Page 5: ... or check this product make sure than the Power Plug is detached To keep the safety of this product periodical maintenance and check would be suggested We would also suggest the periodical calibration to keep the performance of this product Overload Do not use the connector of this product for any purpose that is not described in this manual Do not apply Volt that exceeds the specifications Repair...

Page 6: ...or Caution When you find this Label affixed on this Product please refer to the relevant portion in this manual to check the meaning Wrong or improper Operation may cause a considerable disability including the death and heavy injury Please understand the description in this manual and follow the relevant procedure and instructions Wrong or improper Operation may damage this Product or other conne...

Page 7: ... and the functions in Operation Panel the I O setting and the Configuration Setting is described Chapter 5 Operations for Load Modes The Operations in each Load mode are described Chapter 6 Operations for Meas Modes The Operations in each Measurement mode are described Chapter 7 Alarms The Protection Functions and the Alarm of this Product are described Chapter 8 Programming Mode GPIB and UBS Comm...

Page 8: ...d if there is any missing attachments If there are any missing attachments please contact dealer or us promptly The attachments of this Product are as follows Operation Manual Ｍ 2099 02 Input Power Cable 3P 1 5m CD ROM Cover for remote sense Terminal Block including the USB Driver This parts is attached to this Product Screws for load input terminal Two 2 pairs ...

Page 9: ...o carry this Product When you move this Product please turn off the Power of this Product in advance When you transport this Product use the same and dedicated Package when you receive this Product If you don t have such package use the equivalent or better Package in any case Take this Grip to carry this Product ...

Page 10: ...3 Name and Function of Each Part 3 1 3 1 Front Panel 3 1 3 2 Rear Panel 3 3 3 3 Side Panel 3 4 4 Operations 4 1 4 1 Operation Panel 4 1 4 2 Menu Selection 4 2 4 3 I O Setting 4 3 4 4 Memory Functions 4 4 5 Operations for Load modes 5 1 5 1 Load Mode 5 1 5 2 Load Settings 5 2 5 3 Response Time 5 4 5 4 Curr Limit Setting 5 4 5 5 Constant Curr CC Mode 5 5 5 6 Constant Resistor CR Mode 5 6 5 7 Constan...

Page 11: ...mmands 8 2 8 3 Load Setting Commands 8 3 8 4 System Commands 8 3 8 5 Multi Line Messages 8 4 8 6 Status Registers 8 4 8 7 GPIB Sample Program 8 5 8 8 USB Interface 8 8 8 9 ActiveX Controller Function References 8 14 8 10Usage of Active X from Excel 8 16 8 11USB Sample Program 8 17 9 Specifications 9 1 9 1 General 9 1 9 2 Meas Section 9 1 9 3 Load Section 9 2 9 4 Output Section 9 3 9 5 Outline View...

Page 12: ...ELS 304 ...

Page 13: ...t Any volt difference drives the operation of this product Worldwide power input 100V 240V 50 60Hz Various load modes like CC CR CV CP Dynamic Ext control Short are supported In the dynamic load mode single and auto modes are supported As the interface both USB and GPIB are supported as the standard By simply connecting to your PC via a USB cable you can control this product to measure automatical...

Page 14: ...valuation Test Fuel Cells I V Characteristic Test Fuel Cells I V Characteristic Test Power Semiconductor Evaluation Test 1 4 Options The following options are provide Select them for your application Low inductance cable LL 050 100A 50cm Ripple Noise converter RC 02A Factory option The ripple noise converter is a factory option and you cannot purchase this RC 02A alone and add this option by yours...

Page 15: ...e be careful when you connect the cable because you may get an electric shock The Rated of the attached AC Power Cable with 3 prong plug is AC125V If you need to use a cable for more than AC125V please prepare the proper AC Cable This applies to a customer in Japan Before you connect or disconnect the AC Power Cable the Power Switch of this product should be OFF Connect the Power Plug to the 3P ou...

Page 16: ...in each Load Modes CR CV CP using the Volt Reference may have errors Before you connect this cable turn off the power of the Target Device This product have the protection resistor to protect against the reverse connection at the Load Terminals Because of this the Volt Meas value may be lower due to the Volt Drop of the resistor There is no such resistor at he Remote Sense Terminals TARGET DEVICE ...

Page 17: ...the voltage drop caused by the back electro motive force exceeds volt between load terminals because there is no volt Potential difference left This product is designed to minimize the internal inductance but is not zero so it is necessary that some level of voltage potential difference need to be presented between the load terminals For example 2V needs to be presented between the load terminals ...

Page 18: ... any Volt other than the range 0 30V any voltage outside this range would damage this product 3 Ext Control Cable As for the cable between this product and use a shielded twisted or coaxial cable Both DC and AC can be inputted but when you input AC add the offset Volt so that the Volt should not be less than 0V always The input of product should be in the range between 0 and 10V and DC and 500KHz ...

Page 19: ... isolated Please be careful when you connect to an oscilloscope Improper connections would cause damage Monitor output volt 10V 120A Output impedance 50Ω typ An equivalent circuit in terms of the current monitor of this product is shown NOTE NOTE X1 T 2 T 1 g at e So uce D rain LO AD X2 MOSFET_Nch Shunt R R1 Power Supply 5V LO AD Ref_V R2 X3 T 2 T 1 R3 R4 R5 R6 I Monitor ...

Page 20: ...s to an oscilloscope If you should connect in reverse connection as shown in Fig 2 3 1 large current would flow through the probe and the internal of the oscilloscope causing a damage Fig 2 3 2 Wrong Connections to an oscilloscope NOTE WARNING ELS 304 Oscilloscope Probe Ch1 Ch2 CUURNT MONITER Load Circuit Moniter Circuit Load Terminal ELS 304 Current route Ch1 Ch2 CUURNT MONITER Load Circuit Monit...

Page 21: ... mode operation Trigger output pulse transformer type max output peak volt 3V typ pulse width 4usec typ output impedance 50ohm typ Fig 2 4 1 TRIG OUT and Current Waveform NOTE TIME msec GND 3V typ Current Waveform TRIG OUT Waveform DYNAMIC RUN ON DYNAMIC RUN OFF 4us typ SET CC1 SETCC2 TIME CC1 TIME CC2 RESP CC1 A usec RESP CC2 A usec Timing when trigger signal is outputted from the TRIG OUT termin...

Page 22: ...ELS 304 2 8 Connections ...

Page 23: ... change values and ten keys to input values For specific operations refer to 4 5 6 3 Load terminal block This the Terminal Block for the Load input The max rated is 30V 120A 300W 4 Air inlet To take air for cooling Do not put an obstacle to block the airflow 5 Current monitor output This is a volt Output terminal so that you can monitor the load current of this product The signal is based on 10V 1...

Page 24: ...yed either 12A Low range or 120A High range 3 Meas values Two meas values are simultaneously displayed You can select what should be displayed In the drawing voltage and current are displayed in upper and lower columns respectively 4 Function buttons Characters or icons currently allocated to F1 F3 are displayed Items displayed therein depend upon the function you selected 5 Load setting Selected ...

Page 25: ...dicating the scale of increase decrease load setting by the rotary knob Unless you operate in some specific items you can use the rotary knob to change load setting The step value of load change can be selected This icon shows the step value as shown below 0 001 0 01 0 1 1 0 10 0 The step values are common for all load modes 3 2 Rear Panel 1 INPUT connector When option RC 02A Ripple Noise converte...

Page 26: ...ion 4 AC Inlet This is the AC inlet allowing the Volt Input between 100V and 240V Worldwide 5 Air outlet This is to exhaust the air taken through the Inlet on the Front Panel to cool this product by the air Do not put an obstacle to block the airflow nor install this product in a small and enclosed place 6 Ext Control Input BNC Connector For inputting external Voltage for controlling load level Th...

Page 27: ... knob With this convenient knob you can increase decrease a setting value or change item to be selected And this knob can be used as a button to confirm the selected value 4 ON OFF switch This switch is for setting Load ON OFF When Load ON the LED above this switch is turned ON 5 ENT key This key is for confirming inputted value s and selected conditions 6 CE key This key can be used to cancel dat...

Page 28: ...ement I O MEMORY you can setup GP IB address and I O First of all it is necessary to select proper menu mode To select proper menu press MENU key to display menu select window Press MENU key or the rotary knob to select menu Underscored item represents a selected item Press ENT key or the rotary knob to confirm the menu selected You can abort by pressing CE key OR MENU ...

Page 29: ...ry knob to display the address you want to select Press ENT key or the rotary knob to confirm the selected address 2 Contrast of Display LCD Press F2 key of the I O menu to display a window for contrast setting Press F2 key or the rotary knob to adjust the contrast Press ENT key to the rotary knob to confirm the adjusted level 3 Brightness of back light of the display LCD Press F3 key of the I O m...

Page 30: ...rameters for dynamic load operation 1 STORE In I O MEMORY menu Press F2 to display a window showing a No for saving Press F2 key or turn the rotary knob to display No you want to select Press ENT key or the rotary knob to confirm the No you selected Data with the same No will be overwritten with new data 2 RECALL In I O MEMORY menu Press F3 to display a window showing a No for recalling Press F3 k...

Page 31: ...cases the short condition will be setup which may damage the target device When you have no choice but to change the Load Range in the Load ON condition the load will be in no load condition for about 15msec when the range is switched Note If the I O menu is displayed you may be setting I O parameters Please finish setting in I O menu then exit from the I O menu before you select change a load mod...

Page 32: ...o the load mode Or before you switch to the load mode you can setup values of the load mode While the load mode is selected use ten keys to input values and then press ENT key or the knob to confirm the values 5 2 Load Setting You can change values of a load condition by using ten keys and the knob CC MODE CR MODE CV MODE CP MODE EXT MODE SHORT MODE OR 7 4 1 0 2 5 8 9 6 3 CE ...

Page 33: ...ou operate the following step The load won t start operation according to above setting until you press ENT key 2 Rotary knob If you turn the rotary knob in a clockwise counterclockwise direction setting values increases decreases respectively You can changing values regardless of Load ON OFF If you turn the knob too fast setting value may not always matches the steps you turned the knob 2 Increas...

Page 34: ...lation happened due to the combined condition of response speed of this product and the target device connected please adjust to decrease the loop gain value to slow response speed of this product to stop the oscillation The proper value depends on target devices How to change response speed Check if select load mode is a load mode where you can change the response speed In the LOAD CONTROL menu p...

Page 35: ...en keys and then press ENT key to confirm the setting value 3 Press ON OFF key to select ON to start flowing the current you setup Fig 5 5 1 Operation in CC mode Confirmed values are retained if you change the load mode If you input data exceeding the upper limit thereof the upper limit value is inputted Supplement Input Volt Setup Current Load Cuurent I V Mode Select Set Value confirm Load ON The...

Page 36: ...CR is displayed as shown below 2 Input setting value by ten keys and then press ENT key to confirm the setting value 3 Press ON OFF key to select ON to start flowing the load current according to this setting Fig 5 6 1 Operation in CR mode Confirmed values are retained if you change the load mode If you input data lower than the lower limit thereof the lower limit value is inputted Supplement I V ...

Page 37: ... you may stabilize the load control by changing the loop gain value to stabilize the measurement For changing the loop gain refer to 5 3 Response Time When Load is set ON over power alarm is also ON due to the inrush current In such a case you may avoid it by changing the curr Limit value For changing the it refer to 5 4 Curr Limit Setting However the curr limit value should not cause any trouble ...

Page 38: ...nt current operation with current limit up to setting volt can be executed As an example in case of batteries load volt value is the value you setup in CV mode and at the same time load current value is determined by the battery volt and the internal resistance of the battery To set curr limit refer to 5 4 Curr Limit Setting Confirmed values are retained if you change the load mode If you input da...

Page 39: ...and input volt Fig 5 8 1 Operation in CP mode When Load is set ON over power alarm is also ON due to the inrush current In such a case you may avoid it by changing the curr Limit value For changing the it refer to 5 4 Curr limit setting However the curr limit value should not cause any trouble for normal operation and also should avoid the situation that the value multiply volt value in no load co...

Page 40: ...y to confirm the setting value 3 Press ON OFF key to select ON to start flowing the load current which is proportional to the setup curr and ext control volt Fig 5 9 1 Operation in EXT mode Confirmed values are retained if you change the load mode If you input data exceeding the upper limit thereof the upper limit value is inputted Supplement I V 0V 10V Extrnal Control Volt Load Cuurent Extrnal Co...

Page 41: ... to set mode select condition and then turn the knob until ST is displayed as shown below 2 Input setting value by ten keys and then press ENT key to confirm the setting value 3 Press ON OFF key to select ON to start flowing the load current up to the rated 120A or setup current limit whichever smaller Fig 5 10 1 Operation in SHORT mode 7 4 1 0 2 5 8 9 6 3 CE ON OFF ENT Mode Select Set Value confi...

Page 42: ...as in each mode selected Effective time from 10μs to 60s 10μs resolution Response speed slew rate You can setup these values same as in each mode selected The accuracy of the Effective time becomes coarser as the effective time becomes longer even though the resolution is not changed In the dynamic mode operation trigger signals are outputted from the TRIG OUT output on the front panel in the timi...

Page 43: ...ted mode is selected For example if both CC mode and dynamic mode is selected then you select DV mode the dynamic mode is stopped and DV mode is selected 3 How to select dynamic mode In the LOAD CONTROL menu press F3 key If CC mode is selected when you select dynamic mode parameters of CC mode are displayed 4 How to switch between CC1 and CC2 First setting menu for CC1 is displayed To change menu ...

Page 44: ...n the setting menu 1 SET Load value 2 TIME Effective time 3 RESP Response speed To set those parameters you can use ten keys During the dynamic mode operation if you change parameters the setting becomes effective immediately 1 2 3 Supplement SET CC1 SET CC2 TIME msec Current A TIME CC1 TIME CC2 RESP CC1 A usec RESP CC2 A usec SET CC1 SET CC2 TIME msec Current A TIME CC1 Note TIME CC2 0 00mS RESP ...

Page 45: ...mic operation Fig 5 11 3 Displayed window while executing During the dynamic operation message RUNNING is displayed on the setting menu And message DYNAMIC is displayed at the column of setting values in the menu other than dynamic menu 7 Setting examples Ex 1 AUTO Parameters CC1 10A 10ms CC2 no load 5ms 1 In normal menu select CC mode 2 In dynamic load setting menu setup parameters of CC1 3 Setup...

Page 46: ...s of CC2 where parameter of the effective time should be zero 0 4 Load ON 5 Dynamic operation ON Fig 5 11 5 Setting operation for single operation 図 5 11 6 Detailed drawing of single operation 8 How to repeat Single operation Press ENT key without Load ON OFF operation This single operation is become effective only when dynamic load mode is effective Load ON first then start this Single Operation ...

Page 47: ...er display To change item of upper display Press F1 key to display select item window Press F1 key or turn the rotary knob to select item Press ENT key or the knob to confirm the item Each item displayed presents the following VOLT T Voltage at the terminal block CURR Current POWER Power VOLT I Voltage measured by the RC 02A module optional NOISE Noise measured by the RC 02A module optional RIPPLE...

Page 48: ...olt Curr Ranges Note when you change ranges of this product not only measurement but also load setting will be influenced by the setting Please pay attention to the specifications of each range before you use this product To change ranges you can change from any menu except while you are setting I O setting 1 Voltage range setting Press the rotary knob twice quickly After the knob is pressed first...

Page 49: ...ODE is displayed in the dot circle in the upper figure When you press the knob three times quickly Cr is displayed Turn the knob to select 12A 120A or AT as shown below 12A 12A fixed range 120A 120A fixed range AT Auto range Press ENT key or the knob to confirm the setting selected 12A Fixed 120A Fixed AUTO Range Once Twice Three times ...

Page 50: ...ELS 304 6 4 Operations for Meas Modes ...

Page 51: ...etup the Current Limit refer to 5 4 Curr limit setting If the Current limit is not setup the Current Limit value will be 120A as the default value 7 2 Over Voltage Alarm When the load volt exceeds the tolerance value this alarm operates In High range when Vin 31 2V Typ in Low range when Vin 4 16V Typ this alarm is issued Fig 7 2 1 Display of Over Voltage Alarm This is for the alarm only there is n...

Page 52: ...on exceeds 80 Celsius degrees Fig 7 3 1 Display of Overheat Alarm This alarm may work if you put an obstacle near the air inlet or outlet of this product or the fan of this product is not working due to dusts or something else or if this product is used beyond the operating temperature range of this product CAUTION ...

Page 53: ...of Reverse Connection Alarm This is for the alarm only there is no protection for the Load Section of this product When this alarm works if there is questionable odor or abnormal noise please stop using this product immediately and call us or our distributor for the repair To detect this alarm Reverse connection voltage needs 0 6V Typ or more WARNING NOTE ...

Page 54: ...arm This alarm works when 315W Pin Fig 7 5 1 Display of Over Power Alarm 7 6 Release an Alarm Press CE key to release the alarm Please remove the cause of the alarm as well Fig 7 6 1 CE key 7 4 1 0 2 5 8 9 6 3 CE ENT ON OFF F1 F2 F3 MENU ...

Page 55: ...R LF CR LF and non delimiter The EOI End of Strings will be sent out whatever Delimiter is selected Refer to 4 3 I O Setting for the Operation 3 Bound symbols The Space Comma colon semicolon and tab are recognized as a bound symbol A program without such a bound symbol would not work properly No of instrument to be connected Max 15 including a controller Total cable length 20m or less and 2m or le...

Page 56: ...e upper Meas display 1 define lower Meas display Mes Fixed mode MF NR1 range 0 1 meas command selected last will be 0 free run meas executed repeatedly 1 single meas HZ NR1 range 0 1 sampling rate of the AD for 0 50Hz measurement can be setup 1 60Hz Notes you can NOT mot in this par NR1 integral value 1 Setting range and the meas range of load section can not be setup independently but should be s...

Page 57: ... section DP command DR NR2 set load resp slew rate A μsec Curr Setting Range RC NR1 range 0 2 1 Load current range 0 auto range 1 High range 2 Low raneg Volt Setting Range RV NR1 range 1 2 1 Load volt range 1 High range This setting infludences CR and CV 2 Low raneg settings Output Control SW NR1 range 0 1 0 load OFF 1 load ON Load Response Setting GC NR2 resp time μ A in CC setting Valid for CC a...

Page 58: ...t prevent from releasing remote condition Notes The code of the multiline command is sent as binary data So it is impossible to access by the sending command usually used becomes the same condition as power ON Bit HEX abbrev Description Note 80 ALM Alarm Issue When Bits of ST0 ST2 is up then it setup 40 SRQ Service Request When Interupt request is issued 20 ERR Command Error Send back the status o...

Page 59: ...f Command1_Click A basic program to measured result when constant curr is setup Using automatic setting of load setting range etc the voltage between terminals and current are measured and displayed when load current is decreased from 50A to 5A Sample ２ part of Command2_Click Using the dynamic operations in CC mode this program changes the load current changes as shown below The circled numbers re...

Page 60: ...String Dim rcv As String curr 50 set 50A as the initial value For i 0 To 10 set 11 times as No of loops cmd CC CStr curr create CC setting command ilwrt IFid cmd Len cmd ilwrt IFid MV1 3 volt meas in HIGH range send a command rcv fill the character region with blank ilrd IFid rcv 16 receipt of meas value MsgBox rcv V vbInformation Voltage receipt of meas volt ilwrt IFid MC0 3 send volt meas comman...

Page 61: ...RESPONS 5A usec MsgBox Dynamic Load Start ilwrt IFid CD1 3 MsgBox Dynamic Load Stop ilwrt IFid CD0 3 ilwrt IFid DP2 DT0 7 TIME B 0msec MsgBox Single shot Dynamic Load Start ilwrt IFid CD1 3 MsgBox End Dynamic Sample Program ilwrt IFid SW0 3 LOAD OFF ilwrt IFid CC0 3 Change setting to 0A End Sub End of sample 2 Private Sub Command3_Click Start of sample 3 Call InitIF initialize GPIB I F Dim stb As ...

Page 62: ...s OS Microsoft Windows2000 Professional English Version Microsoft Windows XP Home Professional English Version ＰＣ IBM PC AT having one of above OS and USB I F 1 Software installation Install the USB driver and the Active X component etc If older version is already installed uninstall them first and then install the latest ones a Put the CD ROM of SUPPORT CD for EL Series Electronic Load in the CD ...

Page 63: ...304 Programming Mode 8 9 d Click Next e Select the folder where the software is installed Default setting is C Program Files KEISOKU GIKEN ELSeries After you select the folder click Next f Check the install ...

Page 64: ...g Mode This is the final check If there is no problem click Next g End of installation This is the end of installation display if there is no problem For your uninstall you can do it by Windows Application addition and Delete ...

Page 65: ...e SUPPORT CD for EL Series Electronic Load CD ROM in the PC a Connection of ELS 304 Connect between the PC and ELS 304 with a USB cable b A message a new hardware was found is displayed c Click Next or 次へ N to start search wizard d A driver installation menu is then displayed Select search a driver suitable to the device and click Next or 次へ N ...

Page 66: ...k next or 次へ N f Designate the place where the el Inf file is The Inf file is located in the folder where you installed by the SUPPORT CD for EL Series Electronic Load CD ROM In case of default folder it is linked to the following C Program Files KEISOKU GIKEN ELSeries Driver WIN2K_XP Select a folder and click OK ...

Page 67: ...ELS 304 Programming Mode 8 13 g After the search ends click next or 次へ N to start the installation h End of the installation If there is no problem the menu below is displayed and this it the end ...

Page 68: ... be performed Ex CmdSend CC120 ʻSet CCmode and 120A CmdRcv string As long receives the readback value Ex CmdRcv ret ʻret readback value LoadSet mode As Integer val As Double As long Setting Commands according to the following number can be performed 0 CC mode 1 CR mode 2 CV mode 3 CP mode 4 External Control mode 5 Short mode Ex LoadSet 0 120 ʻSet CC mode and 120A Measure mode As Integer val long M...

Page 69: ... Mode 8 15 MeasureSample times As Integer As long Select the number of averaging times 0 1 time 1 3 times 2 5 times LoadON Set Load ON LoadOFF Set Load OFF ResetAlm Reset the alarm Version Acquire ROM version information ...

Page 70: ...e X by Excel s Visual Basic is explained 1 Start up the Excel and select Display Tool bar T Control Toll Box 2 Select KEISOKU GIKEN EL Series Control 3 Drug on the worksheet and the following mark is come up This is the end of control selection of EL Series ELS 304 EL Series ELS 304 Control Select ...

Page 71: ...1 1 A design window of the Excel s Visual Basic Private Sub CommandButton1_Click This is an event that is generated when you click CommandButton1 El1 CmdSend V send GPIB command to read the version Dim ret El1 CmdRcv ret ʻReceipt data from the ELS 304 Sheet1 Cells 1 1 ret ʻDisplay the version in cell A1 End Sub As shown below after the execution of this software the firmware version is displayed F...

Page 72: ...ELS 304 8 18 Programming Mode ...

Page 73: ... 00A Resolution 0 1mA 1mA Accuracy 1 Meas Time 2 Meas Method 4 Meas Time 2 1 warranted for six months in the conditions of le peripheral temp 23 5 and humidity 70 or less 2 Meas time when the same meas mode and the same range 3 there are two ranged for the curr meas Spec depends on the selected range 4 readback data is the absolute value of measured data Calculation method Volt measured Curr measu...

Page 74: ...ec 200A µsec Max Load Curr Curr Range 12A 120A Setting Range 0 06A 12A 0 6A 120A Nominal Resolution 1 60mA 0 6A 1 Nominal resolution represents approximate resolution expected in each setting mode 2 Conv Curr represents ideal curr value of Input volt setting resistor value 3 Min load response time represents the min settable value in 200A usec load response setting 4 Internal inductance 20ｎH Typ S...

Page 75: ...ut Pulse Width Output max peak volt Output 2 Output Impedance Accuracy 3 1 TRIG OUT Output is Isolated 2 CURRENT MONITER Output is Not Isolated 3 Conv Volt represents converted volt value of measured curr value rated curr f s of curr monitors 50Ω CURRENT MONITER 10V 120A fs 1 of Conv Volt 1 of fs TRIG OUT Pulse trans output 3V typ 50Ω 4usec typ ...

Page 76: ...ELS 304 9 4 Specifications ...

Page 77: ...should not be penetrated into this product 10 2 Fuse Exchange This product has the power Fuse and exchange it according to the following procedure Never fail to turn off the power of this product and disconnect the plug of the AC Power Cable To avoid the fire or electronic shock the Fuse that will be used in the product should have the safety standard in the area of the region you use Any use of i...

Page 78: ...ragged or split portion on the cable Any ragged or split portion on the cable would cause the electric shock Never use such a power cable for the safety For your purchase the attachment contact us or the distributor you purchased from 10 4 Calibration To calibrate this product contact us or the distributor you purchased from 10 5 Storage In case you don t use this product for a long period please ...

Page 79: ...gust 19 2005 KEISOKU GIKENCO LTD 2 12 2 Chigasaki minami Tsuzuki ku Yokohama 224 0037 JAPAN URL http www keisoku co jp Contact Us For sales TEL 045 948 0211 FAX 045 948 0221 E mail PWsales hq keisoku co jp For Engineering TEL 045 948 0214 FAX 045 948 0224 E mail PW support hq keisoku co jp ...

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