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2 

AT824/825/826 Handheld LCR Meter 

Safety Summary 

Warning

 

Dangerous 

 

Disclaimer

 

Applent Instruments assumes no liability for the 

customer's failure to comply with these requirements. 

DO NOT Operate In 

An Explosive 

Atmosphere 

Do not operate the instrument in the presence of 

inflammable gasses or fumes. Operation of any 

electrical instrument in such an environment constitutes 

a definite safety hazard. 

DO NOT Operate In A 

Damp Atmosphere 

The instrument is not waterproof;  keep instrument 

probes  away from water, the instrument should not be 

used in damp conditions.

 

DO NOT Open 

Instrument Case 

Other than replacing the old battery, 

non-professional maintenance staff do not open the 

instrument case, in an attempt to repair the instruments.

 

DO NOT Substitute 

Parts Or   

Modify Instrument 

Try to substitute parts or modify instrument will cause 

protection failure. 

 

 

Warning: 

1.

 

Do not connect probes with DC voltage or live circuits 

2.

 

Before measuring capacitors, make sure the capacitors had 

been discharged.   

 

Safety Sign; 

 

 

Equipment protection by double insulation or reinforced 

insulation 

 

Waste Electrical and Electronic Equipment (WEEE) Directive

 

2002/96/EC

 

 

 

Do not discard in household garbage 

Summary of Contents for AT824

Page 1: ... 89966117 89966227 89966337 Fax 0086 0519 89966550 Sales Email sales applent com Tech Email tech applent com http www applent com 2005 2012 Applent Instruments Inc English Revision A0 FIRMWARE REVISIONS This manual applies directly to instruments that have the firmware Rev A1 x and B1 x AT824 825 826 Handheld LCR Meter User s Guide ...

Page 2: ...obes away from water the instrument should not be used in damp conditions DO NOT Open Instrument Case Other than replacing the old battery non professional maintenance staff do not open the instrument case in an attempt to repair the instruments DO NOT Substitute Parts Or Modify Instrument Try to substitute parts or modify instrument will cause protection failure Warning 1 Do not connect probes wi...

Page 3: ... repair this 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...

Page 4: ...Features 12 2 2 1 Measurement parameters 12 2 2 2 Equivalent Circuit 13 2 2 3 Range 13 2 2 4 Measurement Speed 13 2 2 5 Basic Accuracy 14 2 2 6 Measurement Range 14 2 3 Test Signal 15 2 3 1 Test Signal Frequency 15 2 3 2 Test Signal Level 15 2 3 3 Output Impedance 15 2 4 Main Functions 15 2 4 1 Correction 15 2 4 2 Comparator Sorting Function 15 2 4 3 System Setup 15 2 4 4 Interface 15 3 Startup 16...

Page 5: ...FIG Page 30 6 1 SYSTEM CONFIG page 30 6 1 1 LANGUAGE 30 6 1 2 FILE 31 6 1 3 TOUCH PANEL 31 6 1 4 BRIGHTNESS 32 6 1 5 DIM DISPLAY DIM 33 6 1 6 AUTO POWER OFF APO 33 7 EXAMPLES 34 7 1 Example 34 8 Remote Control 36 8 1 USB HID 36 8 2 Programming guide 36 8 3 Command set 37 8 3 1 Command packet 37 8 3 2 Notation Conventions and Definitions 38 8 3 3 Parameter types 39 8 4 Command Reference 39 8 4 1 DI...

Page 6: ...826 Handheld LCR Meter 8 4 11 Error Subsystem 45 8 5 Command List 46 9 Specification 47 9 1 General Specification 47 9 2 Accuracy 48 9 2 1 C and D 48 9 2 2 L and Q 50 9 2 3 Z and θ 51 9 2 4 ESR 51 9 3 Demensions 52 ...

Page 7: ...e panel 18 Figure 3 4 Power Adapter 19 Figure 3 5 Charging LED Orange 19 Figure 3 6 Unknown Terminals 20 Figure 4 1 MEAS DISPLAY Page 21 Figure 5 1 SETUP page 25 Figure 5 2 To input nominal by touch screen 27 Figure 5 3 Stray Admittance 29 Figure 5 4 Remaining impedance 29 Figure 6 1 SYSTEM CONFIG Page 30 Figure 6 2 The Brightness key 32 Figure 7 1 Example 35 Figure 8 1 The APPLENT USB logo in win...

Page 8: ...Screen descriptions 17 Table 3 3 Interface panel description 18 Table 4 1 Primary Parameters 22 Table 4 2 Sub Parameters 22 Table 4 3 Parameters descriptions 22 Table 4 4 Auto Range and Range Hold 23 Table 4 5 Range No 23 Table 8 1 A complete command pack in Hex format 38 Table 8 2 Notation Conventions and Definitions 39 Table 8 3 Available data type 39 Table 8 4 Magnification 39 Table 8 5 The Err...

Page 9: ...t all packaged items supplied with the meter have been provided as listed 2 Check the appearance of whether there is damage or scratches If there was damage or lack of accessories please contact Applent Instruments Sales Department or local agency 1 2 Power Requirements AC power adapter ATL909 Rechargeable Li battery ATL805 Input 90V 260VAC 49Hz 62Hz 10VA Warning Do Not use any other power adapter...

Page 10: ...strument built in rechargeable lithium battery the battery has been installed in the battery compartment of the instrument at the factory You should replace the battery according to the following procedure Figure 1 1 Replace the battery 1 Use a screwdriver to loosen the screws of the battery cover remove the battery cover 2 Remove the plug on the old battery plug in new battery plug 3 Put a new ba...

Page 11: ...king and Preparation 1 6 Adjust the support The support has two positions 60 degrees and 45 degrees 45 degrees makes the instrument more stable Figure 1 2 60 Degrees Supporting Figure 1 3 45 Degrees Supporting ...

Page 12: ...battery supply power and USB communication Switch in both English and Chinese AT826 825 handheld LCR digital meters have the highest configuration With the highest frequency of 100 kHz constant 100Ω source internal resistance 0 6Vrms measurement voltage level and 0 2 accuracy make AT826 825 have the excellent performance of both desktop instrument and portability of handheld Referrance Full specif...

Page 13: ... for low impedance components such as high value capacitance and capacitance and low inductance use the series equivalent circuit Vice versa use the parallel equivalent circuit for the high impedance components low capacitance and high value of inductance Also take the actual usage of the component into consideration such as for power supply filtering capacitor series equivalent circuit for the LC...

Page 14: ...9 999 Q 0 0001 999 9 Θd 179 99 179 99 Θr 3 1416 3 1416 999 9 999 9 Table 2 3 AT825 Measurement Range Parameter Measurement Ranger L 0 01µH 999 9H C 0 01pF 999 9mF R X Z 0 0001Ω 99 99MΩ D 0 0001 9 999 Q 0 0001 999 9 θd 179 99 179 99 θr 3 1416 3 1416 999 9 999 9 Table 2 4 AT826 Measurement Range Parameter MMeasurement Ranger L 0 001µH 999 9H C 0 001pF 999 9mF R X Z 0 0001Ω 99 99MΩ D 0 0001 9 999 Q 0...

Page 15: ...e 100Ω Accuracy 5 2 4 Main Functions 2 4 1 Correction OPEN SHORT correction Eliminates measurement errors due to stray parasitic impedance in the test fixtures 2 4 2 Comparator Sorting Function One set of comparator sorting for primary parameters 2 4 3 System Setup Keypad Lock Function Data Hold Function Switch in Both Chinese and English Data File will Be Saved Automatically Touch Screen Setup Po...

Page 16: ...16 AT824 825 826 Handheld LCR Meter 3 Startup This chapter describes Front Panel Summery LCD Screen Interface Slot and Cables 3 1 Front Panel Figure 3 1 Front Panel ...

Page 17: ...Terminal Test Slot 8 Background Brightness 30 50 70 100 Unlock the Keypad Lock 9 HOLD Data Hold Function DH on the data is hold in system USB SYST HOLD ON OFF 1 0 10 SETUP Enter Setup Page 25 5 SETUP 3 2 LCD Screen Figure 3 2 LCD Screen Table 3 2 LCD Screen descriptions 1 The Page Title 2 The Blue fields are label the yellow fields are list box 3 Primary Parameter Results 4 Sub Parameter Results 5...

Page 18: ...nd Keypad Lock Indicators 3 3 Interfaces Figure 3 3 Interface panel 1 2 3 Table 3 3 Interface panel description 1 Remote Control Interface USB HID 2 Beep 3 Power Adapter Jack 9VDC 3 4 External Power and Battery The Battery can only be charged by Power Adapter ATL909 While using the external power supply the power adapter is also charging the battery ...

Page 19: ...w you could use the power adapter to charge the battery The Power key is orange indicating while charging the battery Figure 3 5 Charging LED Orange Attention The key is also orange which charging even when the LCR meter is off previously 3 5 Power up Press the Power key softly to start it ...

Page 20: ...508B SMD Clip Figure 3 6 Unknown Terminals 1 The test terminal can NOT be connected into a live circuit 2 The capacitor must be discharged 3 6 1 Clips and Cables Using clip or cable from other brands may cause mistakes After a long time 1 2 Years the surface of the accessories may be damaged which will lead some inaccuracy Attention Without clip or cable the test result may not be stable ...

Page 21: ...nter MEAS DISPLAY PAGE Measurement settings Primary Parameter Sub Parameter Frequency Test Frequency Range Auto Hold Speed Equivalent Mode Auto Serial and Parallel Figure 4 1 MEAS DISPLAY Page 4 1 1 Measurement Function FUNC A FUNC B The AT826 825 824 simultaneously measure 2 components of the complex impedance parameters in one measurement cycle These include primary parameter and secondary param...

Page 22: ... using the series equivalent circuit model Lp Inductance value measured using the parallel equivalent circuit model Rs Equivalent series resistance measured using the series equivalent circuit model ESR Rp Equivalent parallel resistance measured using the parallel equivalent circuit model Z Absolute value of impedance X Reactance D Dissipation factor Q Quality factor 1 D θr Phase radian θd Phase a...

Page 23: ...lly select the best range acc ording to impedance Range is automatically set Very convenient Test speed is slower than manual ranging especially in lower frequencies 100Hz and 120Hz Hold The instrument will always use the user specified range Highest speed Set the range previously Five Range 30Ω 100Ω 1kΩ 10kΩ and 100kΩ Table 4 5 Range No Range No Range Measurement Range 4 10Ω 0Ω 100Ω 3 100Ω 100Ω 1...

Page 24: ...rsor key to select SPEED Step 3 SLOW 1 5 times second FAST 4 times second 4 1 5 Equivalent Circuit EQU Two kinds of equivalent circuits serial and parallel If you are not sure which one to choose select Auto The equipment will select the tight one USB Command FUNC EQU SERIAL PARALLEL AUTO Procedure of setting equivalent circuit Step 1 Press MEAS key to enter Meas Display page Step 2 Use the cursor...

Page 25: ...rument does not display any results testing is not in progress The setup includes Primary Parameters FUNC A Sub Parameters FUNC B Frequency FREQ Range Auto Range Hold RANGE Speed SPEED Equivalent Circuit EQU MODE Comparator COMP Nominal Value NOMINAL Tolerance TOL User Correction OPEN CORR SHORT CORR The first six settings can also be set in MEAS DISPLAY page Figure 5 1 SETUP page ...

Page 26: ...PASS FAIL Procedure to set beep Step 1 Press SETUP to enter SETUP page Step 2 Select BEEP Step 3 OFF Turn Beep feature Off Pass Beep while Pass Fail Beep while Fail 5 1 3 Input Nominal Value NOM Three ways to input nominal value 1 Use touch screen Keypad Input 2 Nominal components measure Measure Input 3 USB Command COMP NOM Floating Points Procedure to input nominal value Step 1 Press SETUP key t...

Page 27: ...y measurement Step 1 Press MEAS INPUT soft key Step 2 Plug a standard component Step 3 Press OK to start the test the result will be set as nominal value 5 1 4 Input Tolerance Value TOL Press 1 5 10 and 20 as tolerance Press KEYPAD INPUT key to input tolerance value USB Command COMP TOL Percentage Procedure to input tolerance Step 1 Press SETUP key to enter SETUP page Step 2 Select TOL field Step ...

Page 28: ...ft key Tips It is necessary to execute open correction and short correction After replacing the test fixture or test cables you should execute open correction and short correction again Usually low ranges need open correction more high ranges need short correction more 5 2 1 Open Correction OPEN CORR Open correction compensates any stray admittance G B USB Command CORR OPEN ...

Page 29: ...Press OK to execute When correction is done the data will be saved During correction press Cancel to cancel correction 5 2 2 Short Correction Short correction compensates any remaining impedance USB Command CORR SHORT Figure 5 4 Remaining impedance Procedure of short correction Step 1 Press SETUP key to enter SETUP page Step 2 Use the short jumper to shorten test clips or connect cables together S...

Page 30: ... to enter SYSTEM CONFIG page 6 1 SYSTEM CONFIG page Following information can be configured in the SYSTEM CONFIG page System date and time configuration DATE TIME LANGUAGE FILE TOUCH PANEL BRIGHTNESS DIM DISPLAY APO Auto Power Off Figure 6 1 SYSTEM CONFIG Page 6 1 1 LANGUAGE You can switch system language in both Chinese and English Procedure to change language ...

Page 31: ... The LCR meter can work well without touch panel But you cannot type number without touch panel When you need to input numbers the touch panel will be activated even it is shut down in system setting Procedure of setting touch panel Step 1 Press SYST key to enter SYSTEM CONFIG page Step 2 Select TOUCH PANEL field Step 3 ENABLE Enable touch panel DISABLE Disable touch panel CALIBRATE Calibrate touc...

Page 32: ...ion Step 6 Click on the screen softly to exit 6 1 4 BRIGHTNESS Four degrees of brightness 30 50 70 100 Tips If powered by external power the brightness is 100 If powered by battery the low brightness can make the meter work longer Also press to change the brightness Figure 6 2 The Brightness key Procedure to change brightness Step 1 Press SYST key to enter SYSTEM CONFIG page Step 2 Select BRIGHTNE...

Page 33: ...utes later brightness becomes 30 30 minutes 30 minutes later brightness becomes 30 OFF Dim display off Tips Timer will be reset when press any keys or touch screen 6 1 6 AUTO POWER OFF APO Procedure of set auto power off Step 1 Press SYST to enter SYSTEM CONFIG page Step 2 Select APO Step 3 5 minutes 5 minutes later power off 10 minutes 10 minutes later power off 20 minutes 20 minutes later power ...

Page 34: ...a practical example of measuring a ceramic capacitor In this example a ceramic capacitor is measured under the following conditions Sample DUT Ceramic capacitor Primary parameter FUNC A C Sub parameter FUNC B D Test frequency 1kHz Step 1 Press Power key to start the instrument to enter MEAS DISPLAY page Step 2 FUNC A C FUNC B D FREQ 1kHz RANGE AUTO SPEED SLOW EQU MODE AUTO Step 3 Insert the capaci...

Page 35: ...r If you are using test slot insert the jumper to shorten the circuit Press SHORT CORR press OK to start Step 5 Press MEAS key to enter MEAS DISPLAY page Step 6 Connect capacitor to test cables or insert it into test slot Step 7 Read the test result Figure 7 1 Example ...

Page 36: ...ger 8 2 Programming guide The instrument goes along with data communication and acquisition software You can also go to our website www applent com to download Tips If you want to program the software by yourself you need to know some basic knowledge about USB and USB HID Go to www usb org to find out more Basic API functions CreateFile devDetail DevicePath ENERIC_READ GENERIC_WRITE FILE_SHARE_REA...

Page 37: ... always available you needn t set any parameters 8 3 Command set 8 3 1 Command packet Use 64 bits pack to transfer data every USB HID command is 1 pack Tips Command packets have a fixed format the user must follow the format agreed by the instrument of writing and otherwise it is impossible to establish communication The command word is case insensitive Each command packet contains the first 60 by...

Page 38: ...0 00 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 00 00 00 00 00 00 00 00 88 80 55 50 00 00 2B C1 Instrument response pack is 64 bytes not sufficient for 0x00 fill out Not ASCII 0 A response pack from inst...

Page 39: ...4 1 23e 4 NR4 Floating point with magnification 1 23K 1 23N 1 23U magnification in following Table Table 8 4Magnification Definition Suffix 1E18 EXA EX 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 8 4 Command Reference All commands in this reference are fully explained and listed in the following functional...

Page 40: ...up SETUP system SYSTEM CONFIG DISP PAGE To check the current page sHeader DISP PAGE sPara Response meas setup system meas MEAS DISPLAY setup SETUP system SYSTEM CONFIG DISP LINE string To display byte serial sHeader DISP LINE sPara string display byte serial due to the restrict length of sPara some content is can not displayed 8 4 2 FUNC Sub System FUNC MAIN C L R Z AUTO To set primary parameter s...

Page 41: ...ameter sHeader FUNC SUB sPara Response OFF AUTO D Q ESR THR THD X FUNC SUB FACT To check sub factor when primary parameter is set Auto sHeader FUNC SUB FACT sPara Response D Q Rs θr θ X FUNC EQU SERIAL PARALLEL AUTO To set equivalent mode sHeader FUNC EQU sPara SERIAL PARALLEL AUTO SERIAL PARALLEL FUNC EQU To set equivalent mode sHeader FUNC EQU sPara Response serial parallel auto FUNC EQU FACT To...

Page 42: ...1 0 FUNC RANG AUTO To query current range mode sHeader FUNC RANG AUTO sPara Response on off 8 4 3 FREQ Sub System FREQ 100 120 1k 10k 100k To set test frequency sHeader FREQ sPara 100 120 1k 10k 100k Frequency can accept any numeric format but the data must be the frequency value of the meter Illege value will be replaced by a close legal value as follows 100 120 1k AT824 100 120 1k 10k AT825 100 ...

Page 43: ...ary parameter result A sub parameter result B The system will retrieve NR3 type parameter test resuls If sub parameter is off it will retrieve 0 000000e 00 Examples 7 929158e 15 0 000000e 00 8 4 6 COMP Comparator sub system COMP ON OFF 0 1 To turn on off comparator sHeader COMP sPara ON OFF 0 1 COMP To query the status of comparator sHeader COMP sPara Response on off COMP BEEP OFF PASS FAIL To tur...

Page 44: ...al value under current parameters sHeader COMP NOM sPara Response NR3 Example 2 000000e 09 COMP TOL NR1 NR2 NR3 To input percentage deviation sHeader COMP TOL sPara NR1 NR2 NR3 Needn t to input Example COMP NOM 2 2 COMP TOL To query percertage deviation sHeader COMP TOL sPara Response NR2 Example 10 0 8 4 7 Correction subsystem CORR OPEN To execute open correction sHeader CORR OPEN sPara CORR SHOR...

Page 45: ...OFF 1 0 Tips When the screen is data hold a red sign DH will be displayed on screen This command is only available on MEAS DISPLAY page 8 4 9 IDN Subsystem IDN To check version information sHeader IDN sPara Response AT826 REV A1 0 Serial Number Applent Instruments Inc 8 4 10 RST Subsystem RST To start in heat sHeader RST sPara 8 4 11 Error Subsystem ERR To check the message sent previously sHeader...

Page 46: ...b parameter factor FUNC EQU SERIAL PARALLEL AUTO Set equivalent mode FUNC EQU Query equivalent mode FUNC EQU FACT Query equivalent mode FUNC RANG 0 4 Set range FUNC RANG Query range number FUNC RANG AUTO ON OFF 1 0 Set range AUTO FUNC RANG AUTO Query range status FREQ 100 120 1000 10000 100000 Set test frequency FREQ Query test frequency APER SLOW FAST Set test speed APER Query test speed FETC Que...

Page 47: ...d Fast 4 times second Test Frequency AT824 100Hz 120 048Hz 1kHz AT825 100Hz 120 048Hz 1kHz 10kHz AT826 100Hz 120 048Hz 1kHz 10kHz 100kHz Test Signal Level 0 6 Vrms Accuracy 10 Signal Source Resistance 100Ω Correction Open and short correction Comparator Primary parameter percentage Beep Test terminal 5 terminals and 3 terminals Interface USB HID Features Display TFT LCD Display 2 8 inch with touch...

Page 48: ... C 70 C Weight 350g Safety and electromagnetic compatibility IEC 61010 1 2001 IEC 61326 2 1 2005 9 2 Accuracy Accuracy is defined as meeting all of the following conditions Temperature 23 5 Humidity 65 R H Correction open and short correction Test terminal Internal Terminals Slot Equivalent mode Auto Rate Slow Warming time 30 min A 1 year calibration cycle Test level accuracy 10 Test frequency acc...

Page 49: ... 50nF 5 000nF 49 999nF 0 2 2bit 0 0020 5nF 500 0pF 4 9999nF 0 3 3bit 0 0030 500pF 0 0pF 499 9pF 1 2 5bit 10kHz Rnge Display range Accuracy Acuracy De 100µF 50 00µF 99 99µF 3 0 5bit 0 0300 50µF 5 000µF 49 999µF 1 0 3bit 0 0010 5µF 500 0nF 4 9999µF 0 3 2bit 0 0030 500nF 50 00nF 499 99nF 0 2 2bit 0 0020 50nF 5 000nF 49 999nF 0 2 2bit 0 0020 5nF 500 0pF 4 9999nF 0 2 2bit 0 0020 500pF 50 00pF 499 9pF 0...

Page 50: ...bit 0 0020 50mH 5 000H 49 999mH 0 2 2bit 0 0020 5mH 500 0µH 4 9999mH 0 4 3bit 0 0040 500µH 0 0µH 499 9µH 1 4 5bit 10kHz Range Display Range Accuracy Ce Accuracy De 1000mH 500 0mH 999 9mH 0 8 3bit 0 0080 500mH 50 00mH 499 99mH 0 2 2bit 0 0020 50mH 5 000mH 49 999mH 0 2 2bit 0 0020 5mH 500 0µH 4 9999mH 0 2 2bit 0 0020 500µH 50 00µH 499 9µH 0 4 3bit 0 0040 50µH 0 00µH 49 99µH 1 4 5bit 100kHz Range Dis...

Page 51: ... 5Ω 0 0000Ω 0 4999Ω 3 0 3bit 100kHz Range Display Range Accuracy Ze Accuracy θe 10MΩ 5 000MΩ 10 000MΩ 8 0 20bit 4 5 5MΩ 500 0kΩ 4 9999MΩ 3 0 10bit 1 7 500kΩ 50 00kΩ 499 99kΩ 1 2 5bit 0 7 50kΩ 5 000kΩ 49 999kΩ 0 8 2bit 0 5 5kΩ 500 0Ω 4 999kΩ 0 5 2bit 0 3 500Ω 50 00 499 99Ω 0 5 2bit 0 3 50Ω 5 000Ω 49 999Ω 0 8 5bit 0 5 5Ω 0 5000Ω 4 9999Ω 2 5 10bit 1 5 0 5Ω 0 0000Ω 0 4999Ω 6 0 20bit 9 2 4 ESR ESR is e...

Page 52: ...52 AT824 825 826 Handheld LCR Meter 9 3 Demensions Instruments AT824 825 826 User s Guide English 2011 Applent Instruments Inc ...

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