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Overview 

11 

2

 

Overview

 

 

The information is organized as follows

 

Introduction 

 

Main Specifications   

 

Feature overview 

 

2.1 Introduction 

Thank you for purchasing AT680 Leakage Current/IR Meter. 
The Applent AT680 is a Leakage Current and Insulation Resistance Meter for quality 

control and laboratory use. AT680 is used for measuring insulation resistance and leakage 
current of electronic components, devices, dielectric materials, wires, cables and etc. 

The AT680 Dual Display (insulation resistance and leakage current) Megohmmeter 

includes 4-digit (9,999 counts), 7-range (auto and manual), broad measurement range 
(1nA~20mA) and super fast test rate (55 readings per second). The voltage applied to the 
device under test (DUT) is programmable from 1 to 650 volts.   

The AT680 can output comparison/decision results for sorting components into 2 bins. 

Furthermore, by using the handler interface, the AT680 can be easily combined with a 
component handler and a system controller to fully automate component testing, sorting, and 
quality-control data processing. A GD/NG indicator on VFD provides a visual display of test 
results based on a preset limit. Thirty sets of test conditions are stored in the unit and can be 
reprogrammed by the user. 

The RS232C (used SCPI) and Handler interfaces are standard interfaces on the AT680 

and enabled automatic testing.   

2.2 Model Numbers Contrast 

 

Model 

Measurement 

range 

Rate 

Basic 

Accuracy 

Standard

：

AT680 

1nA-20mA 55times/s 

1% 

Reduced

：

AT680SE 

10nA-20mA

3 times/s 

2% 

 

2.3 Main Specifications 

Some main specifications of the AT680 include:

 

 

Full 680 specifications are included in Appendix A.

 

 

Measuring Insulation Resistance and Leakage Current. 

 

Output Negative Voltage: 1.0VDC~650VDC, Basic A

：

ccuracy 0.5% 

<100V: 0.1V step

，

100V: 1V step

。

 

 

Leakage Current

 Measurement Range

：

1nA-20mA 

 

Leakage Current Basic Accuracy

：

 1% 

 

Insulation Resistance

 Measurement Range

：

1k

-325G 

Содержание AT680

Страница 1: ...2009 Applent Instruments Inc The material in this manual is for informational purposes only and is subject to change without notice Applent assumes no responsibility for any error or for consequential damages that may result from the misinterpretation of any procedures in this publication This document contains proprietary information which is protected by copyright All rights are reserved No part...

Страница 2: ...entative for repair of the instrument If you continue to operate without repairing the instrument there is a potential fire or shock hazard for the operator Instrument operates abnormally Instrument emits abnormal noise smell smoke or a spark like light during the operation Instrument generates high temperature or electrical shock during operation Power cable plug or receptacle on instrument is da...

Страница 3: ...nstitutes a definite safety hazard Keep Away From Live Circuits Operating personnel must not remove instrument covers Component replacement and internal adjustments must be made by qualified maintenance personnel Do not replace components with the power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed To avoid injuries always disconnect power ...

Страница 4: ...AT680 Leakage Current IR Meter user s Manual 4 AT680 Leakage Current IR Meter User s Manual English Instruments Inc 2005 2009 Applent Instruments Inc ...

Страница 5: ...is product must be returned to a service facility designated by Applent The buyer shall prepay shipping charges to Applent and Applent shall pay shipping charges to return the product to the Buyer However the Buyer shall pay all shipping charges duties and taxes for products returned to Applent from another country Applent warrants that its software and firmware designated by Applent for use with ...

Страница 6: ... 4 4 Charge Timer 19 3 4 5 Sample Timer 19 3 4 6 Clear Zero Correction Zeroing 20 3 4 7 Adjust VFD Brightness 20 3 5 Measurement Procedure 20 3 5 1 Charge Test Discharge 20 3 5 2 Changing the Parameter 21 3 5 3 Rate 21 3 5 4 Display IR and Leakage at one time 22 3 5 5 Display Peak 22 3 5 6 Sorting Result displays at 2nd line 23 3 5 7 Turning ON OFF the Beep Feature 23 3 5 8 Set Trigger TriggerShif...

Страница 7: ...42 RESistance 42 CURRent 42 BEEP 42 BEEP SET 43 7 10 STATe Subsystem 43 CHARge 44 DISCharge 44 7 11 TIMEr Subsystem 44 CHARge 44 SAMPle 45 7 12 APERture Subsystem 45 7 13 SYSTem Subsystem 45 KEYLock 46 7 14 TRIGger Subsystem 46 IMMediate 46 SOURce 46 7 15 FETCh Subsystem 47 FETCh 47 7 16 ERRor Subsystem 47 ERRor 47 7 17 IDN Common Command 48 7 18 RST Common Command 48 A Specifications 49 AT680 Lea...

Страница 8: ... package the instrument has not been damaged 2 Referring to Table 1 1 check that all packaged items supplied with the meter have been provided as per the specified optioned Table 1 1 Items Packaged with the meter Name Qty Remark User s Manual 1 Power Cable 1 220V 50Hz Fuse 2 250V 1A Slow blow ATL680 Test Clip Leads 1 Warranty certificate 1 Includes Product certification 1 2 Power Supply Confirm th...

Страница 9: ...g requirements Temperature 0 C to 55 C Operating stated accuracy 80 RH Temperature range at calibration 23 C 5 C Stated accuracy 70 RH 1 5 Cleaning To prevent electrical shock disconnect the AT680 power cable from the receptacle before cleaning Use a dry cloth or a cloth slightly dipped in water to clean the casing Do not attempt to clean the AT680 internally WARNING Don t Use Organic Solvents suc...

Страница 10: ...AT680 Leakage Current IR Meter user s Manual 10 1 Retracted Carrying Position 2 Extended Remove Handle Lift the handle perpendicular to the unit while pulling it in the direction of Figure 1 2 Handle ...

Страница 11: ...Furthermore by using the handler interface the AT680 can be easily combined with a component handler and a system controller to fully automate component testing sorting and quality control data processing A GD NG indicator on VFD provides a visual display of test results based on a preset limit Thirty sets of test conditions are stored in the unit and can be reprogrammed by the user The RS232C use...

Страница 12: ...9 9s Trigger mode Internal Trig Manual Remote Trig and External Handler Trig 2 4 Feature overview High brightness VFD window size 98mm 58mm Correction Zeroing Function Zero out test lead and fixture measurement errors Built in Comparator Sorting Thirty sets of Record can be used to store user s data Display on VFD Screen and or Output to Handler Beep and VFD Brightness can be Adjusted Setup GD or ...

Страница 13: ... Clear UNKNOWN HV Rx 4 Figure 3 1 Front Panel NO Function 1 Power Switch To apply power to the instrument Push Down ON Push Up OFF 2 Display VFD Screen Displays measurement results instrument status and user s interface menus Full VFD Content Includes in figure 3 2 VFD 3 Knob To Choose Menu Item and Input Number 4 Terminals BNC Red Sense High Negative Voltage Output Black Drive GND Ground Red Grou...

Страница 14: ...lays the sorting results and second parameters in the charge state 3 Digit Bit x8 3rd line displays the output voltage 4 EX TRIG TRIG Manual Remote Trigger enabled EX TRIG External Trigger enabled Full Trigger Descript in follow section 3 5 8 Set Trigger 5 FMS Rate Fast Medium and Slow Full Rate Descript in follow section 3 5 3 Rate 6 8 Current Range Number or Record Number 7 Shift Shifted to the ...

Страница 15: ...ge Charge Measure Initiate the Measurement Disch Discharge the energy components such as capacitances to stop the measurement terminate high voltage at the negative output terminals Rate Measurement rate 3 items could be chosen Slow Medium Fast Param Select the Parameter IR or Current Clear Open Correction Refer Limit Reference Values Voltage Input the output Voltage values Timer Preset Charge Tim...

Страница 16: ...alue maximum and minimum A parameter s change each time that the key is pressed Brightness Adjust VFD Brightness n m k M G Unit Available in Input box Beeper To setup the beep feature Remote Open Close RS232 Interface Admin Only administrators can operate Trigger Setting Trigger 3 Numeric Keys ASSUMER On the Instrument Panel Blue Words on Button represents Numeric Key The numeric keys include Blue...

Страница 17: ...ts and annunciators If a failure is detected the instrument will not enter the measurement state 3 3 3 Power up Defaults The power on default will be the last configuration you saved 3 3 4 Warm up Time AT680 is ready to be used as soon as the power up sequence has completed However to achieve the accuracy rating warm up the instrument for 30 minutes 3 4 Measurement configuration 3 4 1 Connection t...

Страница 18: ...100V in 0 1V intervals 100V in 1V intervals Discharge State 1 Press Voltage key a cursor flashed at 3rd line on the VFD 2 Press Numeric Key Enter value 3 Press Enter to finish input the Value will save in Flashrom and back to Discharge State Press Esc key to cancel input and back to Discharge State 3 4 3 Range In the auto range state AT680 choose the right range as illustrated in table 3 1 Table 3...

Страница 19: ... setup window 2 Press Numeric Keys to Enter time value 3 Enter key can be pressed to finish the input 4 Press Esc to save time value or Press Enter key to exit setup window NOTE If charge time value set to 0s the charge timer will be disabled 3 4 5 Sample Timer Accept entry of a sample time between 0 and 999 9 seconds in 0 1 second In the measurement state AT680 will sample a data every sample tim...

Страница 20: ...E The test lead must be opened and suspended NO touching any objects such as table 2 Press Enter to clear zero During the zeroing process corrections are calculated and stored in AT680 flashrom and applied to ongoing measurements 3 Press Esc to terminate clearing process and exit zeroing window 3 4 7 Adjust VFD Brightness Press Shift Brightness key to adjust VFD Brightness The first line of VFD di...

Страница 21: ... parameter in the test state the value would be stored in the discharge state 3 5 2 Changing the Parameter You can change test parameter whether at DISCHAGE STATE or TEST STATE Press Param key to switch IR to current testing Press the Param key to cut over insulation resistance to leakage current In the discharge state the 2nd line displays the limit value which also is the present parameter If yo...

Страница 22: ...T STATE Press View key to choose follow items at 2nd line TIP Sorting Result is compared by the the parameter at 1st line 3 5 5 Display Peak Press View key to display peak at VFD 2nd line In the Test State Press the View key to choose follow items VIEW Display Refer Value Rx Ix Leakage Current or IR According to the different parameter Peak Maximum or Minimum Sorting Result GD NG RATE F Fast 55 re...

Страница 23: ... line In the Test State Press the View key to choose follow items 3 5 7 Turning ON OFF the Beep Feature Press the Beep key to turn on off the beep feature VIEW Display Refer Value Rx Ix Leakage Current or IR According to the different parameter Peak Maximum or Minimum Sorting Result GD NG VIEW Display Refer Value Rx Ix Leakage Current or IR According to the different parameter Peak Maximumor Minim...

Страница 24: ...Trigger mode toggled each time that you press the key Internal Trigger EX TRIG Mark die out Manual Remote Trigger TRIG Mark is lighten External Trigger EX TRIG Mark is lighten 3 5 9 Remote Remote Press Remote to turn on off the serial communication interface mark lighted remote control is enabled Setting Press Shift enter Remote state ReMOTe Off Press key or Turn Knob to choose following items ...

Страница 25: ...ress Enter key to Baud STATE and the setting saved Choose the Baud and Press Enter to exit to DISCHARGE STATE and the setting saved The machine could be connected to the computer with the seria interface to control when the serial communication interface is on REMOTE Remote control OFF OFF COM ON ...

Страница 26: ...to cancel and exit to DISCHARGE STATE NOTE The Resistance s limit reference value is UPPER limit Rx Refer PASS GD The Leakage Current s limit reference value is LOWER limit Ix Refer PASS 4 2 Set Beep Feature 4 2 1 Turning on off the beep Press Beep to turn on off the beep The beep annunciator shows you the beep on off state 4 2 2 Set Beep 1 Press Shift Beeper key to enter beep set window 2 Press k...

Страница 27: ...in the upper or lower limits set by the Refer Comparator Limit key The comparator function is always ON The comparison results can be displayed on the VFD display can be output to the handler interface or can be revealed by the beeper Comparator work flow Insulation Resistance Rx Rrefer Upper value PASS Display GD Rx Rrefer Upper value FAIL Display NG Leakage Current Ix Irefer Lower value PASS Dis...

Страница 28: ...unction GD NG and so on to external devices from the AT680 You can also input the external trigger signal and the comparator select signal to the AT680 With this interface and the comparator function you can build an automatic screening system composed of the AT680 and the handler 5 1 Pin Assignment Figure 5 1 Pin Assignment of Handler Interface Connector Table 5 1 Description of Handler Interface...

Страница 29: ...11011 4 10011 12 01011 20 00011 28 11010 5 10010 13 01010 21 00010 29 11001 6 10001 14 01001 22 00001 30 11000 7 10000 15 01000 23 00000 No change Table 5 3 Output Signals 4 EX0 See Tale 5 4 5 EX1 6 EX2 7 EX3 7 EOC Measurement completion signal Low 19 GD Pass signal Low 20 NG Fail signal Low Table 5 4 Typical Voltage Control Signal EX3 EX2 EX1 EX0 Voltage 1 1 1 0 50V 1 1 0 1 100V 1 0 1 1 250V 0 1 ...

Страница 30: ... resistors inside or outside of the AT680 NOTE If the external power supply greater than 8VDC use external pull up resistance please The Pin 32 leaves float The output signal current can not drive relay Power supply The power supply for the judgment output signal pull up and that for the operation output signal pull up and input signal drive can be set separately You can select 3 3V of the interna...

Страница 31: ...0 t11 充放 测测前前 t12 Figure 5 4 Timing Chart Description Time App Min Typical Max t1 One Measurement Circle Fast 17ms Med 67ms Slow 260ms t2 Trigger pulse width 1ms t3 Trig Delay Time 1ms t4 AD Time EOC BUSY Fast 12 2ms Med 62 6ms Slow 256ms t5 Print Result Time 4ms 4 4ms 4 8ms t6 Handler Out to EOC Time 10 s t7 Next Start Time 10 s t8 CHARG Signal Hold Time 50ms 110ms ...

Страница 32: ...Current IR Meter user s Manual 32 t9 CHARG to Measure Delay Time 100ms t10 DISCH Signal Hold Time 10ms t11 Under DISCHARGE STATE The Record Signals Hold Time 100ms t12 Under TEST STATE The Record Signals Hold Time t1 ...

Страница 33: ... receive RXD and signal ground GND lines of the RS 232 standard It does not use the hardware handshaking lines CTS and RTS NOTE JUST ONLY Use an Applent not null modem DB 9 cable Cable length should not exceed 2m Figure 6 1 The RS 232 connector in the real panel Table 6 1 RS 232 connector pinout NAME DB 25 DB 9 NOTE DCD 8 1 Not Connection RXD 3 2 Transmit data TXD 2 3 Receive date DTR 20 4 Not Con...

Страница 34: ...te press SHIFT Remote key into REMOTE window 2 Rotate knob to choose COM item 3 Enter key enable RS 232 4 Rotate knob to choose 4800 9600 19200 38400 57600 items 5 Confirm your selection by pressing ENTER 6 3 SCPI Language Standard Commands for Programmable Instruments SCPI is fully supported by the RS 232 interfaces NOTE AT680 ONLY supports the SCPI Language ...

Страница 35: ...that are used to symbolize a program code parameter or an RS 232 command A square bracket indicates that the enclosed items are optional n Command Terminator 7 3 Command Structure The AT680 commands are divided into two types Common commands and SCPI commands The common commands are defined in IEEE std 488 2 1987 and these commands are common for all devices The SCPI commands are used to control a...

Страница 36: ...esistance comp res The command header should be followed by a question mark to generate a query for that command For example comp res The semicolon can be used as a separator to execute multiple commands on a single line The multiple command rules are as follows Commands at the same level and in the same subsystem command group can be separated by a semicolon on a multiple command line For example...

Страница 37: ...rm mnemonic is the first character of the first word s followed by the entire last word The above rules when the long form mnemonic is a single word are then applied to the resulting long form mnemonic to obtain the short form For example PercentTolerance abbr to ptol AT68x accepts the three forms of the same SCPI commands all upper case all lower case and mixed upper and lower case 7 4 Header and...

Страница 38: ... 1E15 PETA PE 1E12 TERA T 1E9 GIGA G 1E6 MEGA MA 1E3 KILO K 1E 3 MILLI M 1E 6 MICRO U 1E 9 NANO N 1E 12 PICO P 1E 15 PEMTO F 1E 18 ATTO A 7 5 Command Reference All commands in this reference are fully explained and listed in the following functional command order FUNCtion VOLTage CORRection COMParator STATe TIMEr APERture SYSTem TRIGger FETCh ERRor Common Command IDN RST The explanation of each su...

Страница 39: ...ets the measurement parameter to resistance R Command Syntax FUNCtion RESistance n Parameters none Query none Constraints none CURRent The CURRent command sets the measurement parameter to current I Command Syntax FUNCtion CURRent n Parameters none Query none Constraints none RANGe The RANGe command sets the measurement range If the current range was AUTO then converted to manual Command Syntax FU...

Страница 40: ...nd sets the auto range to ON or OFF Command Syntax FUNCtion RANGe AUTO ON OFF 1 0 Parameters ON OFF 1 0 where 1 ON ASCII decimal 49 0 OFF ASCII decimal 48 For example Tx func rang auto off The auto range will set to manual Query Syntax FUNCtion RANGe AUTO Query Response on off For example Tx func rang auto Rx off Constraints none 7 7 VOLTage Subsystem The VOLTage subsystem sets test voltage Figure...

Страница 41: ...ters none For example Tx CORR Rx Clear 0 process please wait Rx ok Query Syntax none Constraints none NOTE When clearing the instrument will ignore any commands 7 9 COMParator Subsystem The COMParator subsystem command group sets the comparator function including its RECORD NO LIMIT REFERENCE VALUES and BEEP Figure 7 5 COMParator Command Tree COMParator RECord RESistance CURRent BEEP integer float...

Страница 42: ... fix float or floating point 0 99999G For example Tx COMP RES 100G 100GΩ Query Syntax COMParator RESistance Query Response float floating point For example Tx COMP RES Rx 1 234560e 08 Constraints Available under DISCH state CURRent The CURRent command sets current limit value Command Syntax COMParator CURRent float Parameters float fix float or floating point 0 99999m For example Tx COMP CURR 1m 1...

Страница 43: ...OMP BEEP SET ng Query Syntax COMParator BEEP SET Query Response ng gd For example Tx COMP BEEP SET Rx ng Constraints none 7 10 STATe Subsystem The STATe subsystem sets instrument state to CHARG or DISCH Figure 7 6 STATe Command Tree Query Syntax STATe Query Response charge discharge test where charge CHARGE state discharge DISCH state test TEST state For example Tx STATe Rx discharge Constraints n...

Страница 44: ...Syntax STATe DISCharge Parameters none Query Syntax none Constraints none 7 11 TIMEr Subsystem The TIMEr subsystem sets charge timer and sample timer Figure 7 7 TIMEr Command Tree CHARge The CHARge command sets charge timer value Command Syntax TIMEr CHARge float Parameters float fix float or floating point 0 999 9 For example Tx TIME CHAR 100 1 100 1s Rx TIME 0 The charge timer sets to OFF Query ...

Страница 45: ...yntax TIMEr SAMP Query Response float 0 0 999 9 For example Tx TIME SAMP Rx 12 0 Constraints Available under DISCH state 7 12 APERture Subsystem Figure 7 8 APERture Command True The APERture subsystem sets the convert time of the ADC Command Syntax APERture slow medium med fast Parameters slow medium med fast For example Tx APER fast Query Syntax APERture Query Response slow medium fast For exampl...

Страница 46: ...TRIGger subsystem command group is used to enable a measurement and to set the trigger mode Figure 2 10 TRIGger Command Tree IMMediate The IMMediate command causes the trigger to execute a measurement Command Syntax TRIGger IMMediate Parameters none For example Tx TRIG IMM Tx TRIG Query Syntax none Constraints Available under DISCH state and Trigger source was HOLD SOURce The SOURce command sets t...

Страница 47: ...ent data taken by measurement s initiated by a trigger Figure 2 11 FETCh Command Tree FETCh Query Syntax FETCh Query Response float float GD NG float floating point Rx float floating point Ix GD NG comparator result For example Tx FETCh Rx 1 008860e 09 9 912178e 08 GD Constraints Available under TEST state 7 16 ERRor Subsystem The ERRor subsystem sets or retrieves last error information Figure 7 1...

Страница 48: ...sion Figure 7 13 IDN Common Command Query Syntax IDN Query Response model version ID For example Tx IDN Rx AT680 V1 00 68000710008 7 18 RST Common Command RST restarts instrument Fignure 2 15 RST Common Command Command Syntax RST Parameters none For example Tx RST Rx Wait for 3s Query Syntax none Constraints none RST IDN ...

Страница 49: ... 65 R H Zeroing Open Correction Warm up time is 60 min or more A 1 year calibration cycle Rate Fast 55 readings s Medium 25 readings s Slow 3 readings s Voltage Accuracy 0 5 Leakage Current Range Fast Medium Slow Accuracy Max Accuracy Max Accuracy Max 1 5 5 19 9mA 3 5 19 9mA 1 3 19 99mA 2 5 5 1 99mA 3 5 1 99mA 1 3 1 999mA 3 5 5 199 A 3 5 199 A 1 3 1999 A 4 5 5 19 9 A 3 5 19 9 A 1 3 19 99 A 5 5 5 1...

Страница 50: ... 32 5G 325G Display Vacuum Fluorescent Display 4 Colors VFD Size 98x55mm Output Voltage 1 0VDC 650VDC Voltage Accuracy 0 5 Parameter Insulation Resistance Leakage Current Peak and Comparator Result Measurement Range Leakage Current 1nA 20mA Resistance 1k 325G Basic Accuracy Slow Rate Current 0 5 Resistance 10G 3 10G 5 100G 10 Maximum counts Slow 3 readings second with 9 999 counts Medium 25 readin...

Страница 51: ...mum Weight Approximately 5kg NET Approximately 6kg SHIPPING Accessories User s Manual ATL680 Lead Set AC Power Cable Warranty Certificate Dimensions Instruments AT680 Leakage Current IR Meter User s Manual http www applent com 2005 2009 All rights are reserved Applent Instruments Inc ...

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