IET Labs 1910, User And Service Manual

Page 1: ...SUREMENT Email info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC Copyright 2017 IET Labs Inc Visit www ietlabs com for manual revision updates 1910 im Oct 2017 1910 Induc...

Page 2: ...PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT Email info ietlabs com TEL 516 334 5959 FAX 516 334 5988 www ietlabs com IET LABS INC...

Page 3: ...t no charge when returned to IET Changes in this product not approved by IET or application of voltages or currents greater than those allowed by the specifications shall void this warranty IET shall...

Page 4: ...USED TAKE ALL MEASURES TO AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS USE MAXIMUM INSULATION AND MINIMIZE THE USE OF BARE CONDUCTORS WHEN USING THIS INSTRUMENT Use extreme caution when working...

Page 5: ...n 34 1 4 Rear Panel Description 35 1 5 Installation 36 1 5 1 Dimensions 36 1 5 2 Instrument Positioning 36 1 5 3 Power Requirements 36 1 5 4 Safety Inspection 38 Operation Section 2 2 1 Terms and Conv...

Page 6: ...5 6 Source Impedance 74 2 5 7 RS 232 Baud Rate 75 2 5 8 IEEE488 Address 75 2 5 9 Clear All Tests 76 2 5 10 Leveling 76 2 5 11 Cable Comp 77 2 5 12 Frequency Edit Type 77 2 5 13 Median 78 2 5 14 Disto...

Page 7: ...2 Principle Functions 103 4 2 1 Fundamental Measurement 103 4 2 2 Sine Wave and Sampling Pulse Generator 104 4 2 3 Digitization 104 Maintenance Section 5 5 1 General 107 5 2 Instrument Return 107 5 3...

Page 8: ...Page 4 of 110...

Page 9: ...Changes in the Product not approved by IET Labs shall void this warranty IET Labs shall not be liable for any indirect special or consequential damages even if notice has been given of the possibility...

Page 10: ...Page 6 of 110...

Page 11: ...2 5 A 1kHz DUT DC Voltage 20mV to 1 000V 2 5mV DUT DC Current 1 A to 150mA 2 5 A Test Frequency Range 20Hz to 1MHz Resolution 1 0Hz from 20Hz to 1kHz 4 digits 1kHz Accuracy 0 02 0 02Hz Speed Accuracy...

Page 12: ...for maximum throughput Interfaces IEEE 488 RS 232 Handler I O Measurement Delay 0 to 100s programmable in 10 ms steps Averaging 1 to 1000 programmable Mechanical Bench Mount optional rack mount flang...

Page 13: ...Options Available Item Quantity IET Labs P N Axial Radial Component Test Fixture 1 1689 9600 4 BNC Connectors to 2 Kelvin Clip Lead Set 1 1700 03 4 BNC Connectors to 4 Banana Plugs 1 1700 04 4 BNC Con...

Page 14: ...89 9600 Axial Radial Remote Test Fixture HCUR HPOT LCUR LPOT High Low Chassis 1700 03 HCUR HPOT LPOT LCUR Figure A 3 1700 03 BNC 4 Connectors to 2 Kelvin Clip Lead Set HCUR HPOT LCUR LPOT 1700 04 Figu...

Page 15: ...Page 11 of 110 Accessories Continued Figure A 6 1689 9602 BNC 4 to BNC 4 Cable Set 1 meter 1689 9602 2 BNC 4 to BNC 4 Cable Set 2 meters Figure A 7 7000 07 Low Voltage Chip Component Test Fixture...

Page 16: ...available from Amco Engineering Company 3801 North Rose Street Schiller Park Illinois 60176 2190 Telephone 847 671 6670 Installation WARNING MAKE SURE THE UNIT HAS BEEN DISCONNECTED FROM ITS AC POWER...

Page 17: ...is not done improper measurements are possible or an electrical shock to the operator could result if the DUT is touched 3 Never touch the test leads test fixture or DUT in any manner this includes i...

Page 18: ...hazard to human if the warning is neglected Caution Avoid product misuse It may cause damage to the product itself and the DUT if the caution is neglected Note Important information or tips for the pr...

Page 19: ...it to make this connection Connect one end of the power cord to the instrument s rear panel power receptacle and the other end to the proper ac power source Press the Power button on the front panel t...

Page 20: ...the UP or DOWN arrow to select measurement parameter UP Automatic Ls Lp Rs Rp Cs Cp DF Q Z Y P ESR Gp Xs Bp V I DCV DCR DCI Press the RIGHT arrow to select secondary measurement parameter Not shown i...

Page 21: ...UP or DOWN arrow to change measurement range value UP Auto Hold or 27 individual ranges 45 for DC refer to paragraph 2 3 6 Accuracy Press the RIGHT arrow to select measurement accuracy 1 Accuracy Pro...

Page 22: ...1 Press the RIGHT arrow to select primary nominal Press the UP or DOWN arrow to change primary nominal value UP Range of values and units depend on primary parameter selected at first step Press the...

Page 23: ...in 10 LoLim Program 100 00 mH Right Press the UP or DOWN arrow to change Hi and Lo limits for Bins 2 10 1 Bin 10 LoLim Program 50 00 mH UP Press the RIGHT arrow to select bin type 1 Bin Type Program O...

Page 24: ...HT arrow to select secondary LOW limit value UP Press the RIGHT arrow to select secondary nominal value 1 Sec Nominal Program Off Right Off or range of values and units that depend on secondary parame...

Page 25: ...y load correction Press the UP or DOWN arrow to change secondary load correction value UP Range of values and units depend on primary parameter selected at first step Press the RIGHT arrow to select l...

Page 26: ...if test is a sequence test S1 S9 NOTE Open Cal and Quick Open Cal are not an option if test is a DC test DCR DCV DCI Press STOP at any time to exit Cal routine Connect Test Leads in OPEN configuration...

Page 27: ...0 kHz 1 000V No Bias Auto High Cal with 1M Cable Cal Due 1 10 2001 Ready Mode OR To program other Tester Utility Functions UTILITY Press the UP or DOWN arrow to change keypad lockout type UP Press the...

Page 28: ...er source type UP After last lockout digit Press the RIGHT arrow to select display type Display Type Util Measured Parameters Right Press the RIGHT arrow to select numeric format Right Measured Parame...

Page 29: ...488 address Press the UP or DOWN arrow to change IEEE 488 address value UP Press the RIGHT arrow to select source impedance Source impedance Util 5 Right Press the RIGHT arrow to select RS 232 baud ra...

Page 30: ...Press the UP or DOWN arrow to change cable compensation type UP Press the RIGHT arrow to select clear all tests Clear All Tests Util No Right Press the RIGHT arrow to select leveling Right No or Yes O...

Page 31: ...elect frequency edit type Freq Edit Type Util Discrete Right Press the RIGHT arrow to select median Right Continuous or Discrete Refer to paragraph 2 5 12 Single Measurement or Median of 3 measurement...

Page 32: ...on 1920 front panel Connections with cables labeled Connections with cables color coded Connections with cables color coded PH connects to PH or HS red white red IH connects to IH or HD red red PL con...

Page 33: ...ameters 1 158 460 uH Bin 1 Q 2 4890 Ls 1 8 460 uH Bin 1 Q 0 4890 Ls Deviation from Nominal Deviation from Nominal Binning On Load Correction On dev 1 5 46 Bin 1 Q 22 25 Ls dev C Other variations of me...

Page 34: ......

Page 35: ...e or voltage parameters simultaneously and select engineering or numeric display of test results as well as deviation or deviation from a programmed nominal value The 1910 s AC test signal is programm...

Page 36: ...or previous test for viewing In PROGRAM or UTILITY mode changes the condition of the selected parameter 6 PROGRAM Push Button Enter exit PROGRAM mode for changing test conditions 7 UTILITY Push Button...

Page 37: ...t Output connections for RS 232 interface 3 Remote I O 37 pin DB Type connector Input Output connections for handler interface 4 IEEE 488 24 pin connector Input Output connections for IEEE 488 interfa...

Page 38: ...venient operator viewing The optimum angle for viewing is straight onto the display This means that for bench or rack operation the instrument should be positioned at eye level 1 5 3 Power Requirement...

Page 39: ...efer to Figure 1 5 for fuse drawer detail Remove the active fuse from the holder by prying upward using a small flat head screwdriver Insert the replacement fuse into the fuse holder Once the fuse has...

Page 40: ...nal cord set which ensures that the instrument is provided with connection to protective earth ground The surrounding environment should be free from excessive dust to prevent contamination of electro...

Page 41: ...th Also the side of a circuit that is at the same potential as the base reference Inductance Inductance is the property of a coil to oppose any change in current through it The inductance of a coil va...

Page 42: ...sipation factor is equal to resistance divided by reactance Df RS XS 1 Q tan 90 tan Impedance In AC circuits impedance is the AC resistance to the flow of current through a circuit when an AC voltage...

Page 43: ...t is to be used only with three wire grounded outlets 115 or 230V no line voltage switching is required WARNING DO NOT TURN INSTRUMENT POWER ON OR OFF WITH TEST DEVICES CONNECTED Power is applied to t...

Page 44: ...pressing PROGRAM key or program mode is exited automatically after sequencing through all test parameters with Right arrow key Programmable functions are discussed below 5 Prim Param Program Automati...

Page 45: ...that is neither a pure resistance nor a pure reactance can be represented at any specific frequency by either a series or a parallel combination s or p of resistance and reactance Such a representati...

Page 46: ...r polar form as magnitude and phase angle Z Figure 2 3a shows the mathematical relationship between R X Z and for both inductive and capacitive devices In some cases it becomes mathematically practica...

Page 47: ...eter selected for Automatic As in the primary parameter selection the secondary parameter can be chosen by the operator for display When the primary parameter is selected for Automatic the secondary i...

Page 48: ...rameter or PROGRAM key to exit Program Mode and return to Ready mode 2 3 4 Amplitude This function allows the user to program the ac test voltage amplitude between 20 mV and 1 0000 V in 5 mV steps The...

Page 49: ...ent this DC current flows to the device under test NOTE When using the 1910 in external bias mode with the IET Labs 1320 DC Bias Current Source the Bias Current must be set to OFF and the 1320 set to...

Page 50: ...surement range for the test conditions programmed and the device being measured The unit determines the selection on the first measurement by measuring the device in Auto range mode and then holding i...

Page 51: ...nges as listed above 7 ranges as listed above 62mV 7 ranges as listed above 200mA range not recommended 7 ranges as listed above 7 ranges as listed above 200mA range not recommended 22mV 7 ranges as l...

Page 52: ...d as indicated in Table 2 3 Table 2 3 1910 Accuracy Accuracy Setting Measure Time Measure Speed Nominal Accuracy Low 40 ms 25 meas sec 0 5 Medium 100 ms 10 meas sec 0 25 High 1 s 1 meas sec 0 1 Low No...

Page 53: ...ax is 4 105 for Frequency less than 10kHz 2 5 104 for Frequency less than 250kHz 1 5 103 for Frequency above 250kHz DFACCURACY Accuracy DF 1 100 50 Freq 50000 QACCURACY Accuracy 100 Q 0 02 Accuracy 10...

Page 54: ...quency Factor EF Frequency Range Hz 20 100Hz 100 1kHz 1k 100kHz 100k 300kHz 300k 1MHz EF 3 1 0 1 3 Additional Impedance Error ZL due to inductance ZL 2 fL f measurement frequency L measured inductance...

Page 55: ...ram a delay time between 0 and 100 s in 10 ms steps This is a programmable delay time from the internal or external trigger command to the start of the measurement In many cases it is helpful to have...

Page 56: ...d then display the average value When the instrument is in a continuous measurement mode the display is retained until the next average of 10 is complete Averaging improves the measurement accuracy ov...

Page 57: ...nal value for the primary displayed parameter selection of nominal value for the secondary parameter is discussed in paragraph 2 3 12 One technique for determining the approximate nominal values or st...

Page 58: ...bsolute value or as a percent tolerance about a defined nominal Two of the most common methods of sorting are nested limits and sequential limits Nested limits are a natural choice for sorting by tole...

Page 59: ...olute HiLim is 110 and LoLim is 90 or deviation limits are 10 and 10 Down arrow the HiLim to 90 Right arrow key to or 10 to select Off Up or Down arrow key to change bin 1 Lo limit 200 to 100 1 Bin Ty...

Page 60: ...absolute limit Right arrow key to select bin 2 thru 10 Hi and Lo limits and Up Down to change these limits PROGRAM key at any time to return to Ready mode Right arrow key to program next parameter or...

Page 61: ...for both the high and low values The units for the nominal value mH F or absolute value are determined by operator selection of the Secondary Parameter Up or Down arrow key to enter change value Righ...

Page 62: ...Off or On Off disables any load correction On enables load correction with any currently stored values Press START performs a measurement on a DUT to determine the load correction based on the primar...

Page 63: ...row key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode 2 3 15 Secondary Load Correction The value shown is the measured load correction for the secondary parame...

Page 64: ...equence Test To enter programming mode Press PROGRAM Sequence 1 Test 1 Up or Down arrow key Tests 1 30 skip or to change test for test 1 none Sequence 1 Test 2 Right arrow key to select test 2 in the...

Page 65: ...limits programmed for that single test in other words the bin assignment will be to bin 1 thru 14 the same as if the test was run as a single test This is the bin assignment that will be shown when th...

Page 66: ...l Quick Open Cal Quick Short Open Cal Short Cal Open Cal Short Open Cal Full Cal Keypad Lockout Lock Password Off Lock Cycle Tests Passwd Display Type Measured Parameters Dev from Nominal Dev from Nom...

Page 67: ...Open short data is deleted by going in and out of PROGRAM mode or programming any parameter of the current single test via remote The operator is prompted by the 1910 display when performing the cal p...

Page 68: ...en Cal Short Op Full Cal Quick Cal is not a choice if test is a Sequence S1 thru S9 Open Cal and Quick Open Cal are not a choice if test is a DC test DCR DCV DCI Right arrow key to start calibration C...

Page 69: ...ure 2 5 Short Circuit Configuration Kelvin Clip Lead Set or Test Fixture C 1 9 F1 I5 V2 Open correction Connect SHORT standard Press START to continue IET Labs 1701 01 Test HIGH LOW Leads shorted and...

Page 70: ...tion is performed with a fixture having higher uncompensated resistance the applied voltage will be automatically reduced during the calibration to keep the voltage across the fixture within range The...

Page 71: ...none can be modified Passwords consist of 6 digits where the Left or Right arrow key is used to select one of six digits and the Up and Down arrow key is used to increase or decrease the digit In the...

Page 72: ...move to next digit Up or Down arrow key to change digit Right arrow key to exit last digit UTILITY key to exit and return to Ready mode Keypad Lockout Util Lock Cycle Tests Passwd Keypad Lockout Util...

Page 73: ...ext digit Up or Down arrow key to change digit Right arrow key to exit last digit Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Keypad Lockout Util E...

Page 74: ...inal Up or Down arrow key to change display type Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Sample displays of measurement results are shown below...

Page 75: ...ictly user preference and convenience When scientific is selected the results will be displayed as some number of digits with decimal exponent and units When engineering units are selected the results...

Page 76: ...it and return to Ready mode 2 5 6 Source Impedance This function allows the operator to select the 1910 s output source impedance selections available are 5 25 50 and 100 In general the measuring inst...

Page 77: ...Up or Down arrow key to change baud rate Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode 2 5 8 IEEE 488 Address This function allows the operator to se...

Page 78: ...t Utility function or UTILITY key to exit and return to Ready mode 2 5 10 Leveling This function provides a constant voltage mode where the DUT is measured at an AC test voltage as determined by the p...

Page 79: ...sation Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode 2 5 12 Freq Edit Type This function allows the operator to choose the test frequencies that will...

Page 80: ...the message Signal Distorted if this condition occurs When set to Not tested distortion will not be detected during a measurement Distortion is dependent on programmed test conditions connection to t...

Page 81: ...bration Watchdog timeout Consult factory Measurement timed out Consult factory Test voltage out of range check for short Calibration incomplete Stopped by user Out of range parameter value rcvd from r...

Page 82: ...rom lockout state default being set Calibration measurement failed Invalid calibration code Cal kit data invalid Please re enter Invalid cal state Contact factory Invalid prog state Contact factory Cu...

Page 83: ...nputs for an external start and stop All output lines are negative true from open collector drivers that pull each signal line to a low voltage when that signal is active and let float when inactive E...

Page 84: ...5 Primary Pass or step 3 in a Sequence test Fails Bin 5 6 Primary Pass or step 4 in a Sequence test Fails Bin 6 7 Primary Pass or step 5 in a Sequence test Fails Bin 7 8 Primary Pass or step 6 in a S...

Page 85: ...and set which also applies to the RS232 interface Each command line must be terminated with a carriage return CR and line feed LF and multiple commands separated by a semicolon Baud rate for the RS 23...

Page 86: ...IEEE 488 2 Interface 3 4 1 General An IEEE 488 interface is available standard on the 1910 through a connector 24 pin on the rear panel This interface can be used to connect to a system containing a...

Page 87: ...ta bytes from the talker device IFC 9 Interface Clear Low state Returns portions of interface system to a known quiescent state SRQ 10 Service Request Low state a talker or listener signals to the con...

Page 88: ...n SEQuence Set sequence test number n NOTE CONFigure or SYSTem commands that follow should only be used with the commands for which they were intended The 1910 commands are interpreted as numeric val...

Page 89: ...Low No Display LND measurement data is not available via IEEE 488 or RS 232 interfaces but only available as binning data through the Remote I O interface TDElay Set delay time in S nnn n AVERage Set...

Page 90: ...EDIAN All measurements use median of 3 tries OFF ON CALibrate Invoke calibration FULL SHORt OPEN QUIckos DATE Set calibration date nn nn nnnn VIEW TEST View the test program parameters TEST View the s...

Page 91: ...tility and by the measurement ACCURACY setting if LOW NO DISPLAY is selected FETCh Fetches the most recent measurement results The reply is a copy of the LCD screen with the following exceptions The o...

Page 92: ...h line followed by CRLF and and additional CRLF after the last message The queue is cleared by sending ERRMSG RST or CLS SUMMary When test is a single step test Read bin summary If bin is enabled form...

Page 93: ...otes serial number up to 8 digits ESR Returns the read of the event status register STB Returns the read of the status byte register ESE Returns the read of the event status enable register SRE Return...

Page 94: ...reference values for all transimpedance measurements Use the STANdard command described below to enter the reference data for the cal kit which will be used These data are stored in nonvolatile memor...

Page 95: ...this bit in the ESE register ESE 64 In order to perform a remote calibration the local keys must be locked out with the command SYST LOCK ON Four types of calibration may then be selected CAL FULL CA...

Page 96: ...There is no way to back up and continue from the last successful part of the calibration it must be restarted from the beginning NOTE The 19xx calibration procedure is designed to allow calibration w...

Page 97: ...0 005000 Max 0 025000 Enter negative DC volts Min 0 005000 Max 0 025000 Set VCal box switch ON send CAL MEAS to continue Enter DC Volts Min 0 200000 Max 0 800000 Enter DC Volts Min 0 100000 Max 1 0000...

Page 98: ...terminated by the NL character together with the EOI line asserted Status Byte Register Decimal Bit Value Use 7 128 Measure completed 6 64 SRQ SPOL Resets 5 32 Summary of Standard Event Status Regist...

Page 99: ...2 None 0 1 Operation Complete This register is read by executing an ESR command per paragraph 11 5 1 2 2 except no Note that this is a destructive read Reading the register clears it Each bit of the E...

Page 100: ......

Page 101: ...test frequency and amplitude of excitation These characteristics are stored in the 1910 in non volatile memory For both Ex and Es a real and imaginary in phase and quadrature component are computed m...

Page 102: ...mbedded computer also controls measurement speed There are three settings for measurement accuracy High 1 measurement per second Medium 10 Measurements per second and Low 40 measurements per second Th...

Page 103: ...e bias control block superimposes the AC excitation on a programmable DC bias current The output of block E is connected to the IH terminal in section F for connection to the DUT Block F in addition t...

Page 104: ...tions to Device Under Test F Embedded Computer A Display and Keyboard K Remote Interfaces L Digital Sinal Processor I Sine Wave and Sample Pulse Generator C Power Buffer D Bias Control E Voltage and C...

Page 105: ...tor in series Two differential amplifiers with controlled gains produce voltages Ex and Es Simple algebra results in an expression for the complex impedance Zx Rs Ex Es Figure 4 2 Fundamental Measurem...

Page 106: ...create a sampling clock The two phase increments are chosen so that the sampling pulse is in proper relationship with the sine wave 4 2 3 Digitization The digitization section consists of a simultane...

Page 107: ...Theory Page 103 of 110 Figure 4 4 Detector Circuits Es IL Ex PL PH Voltage Current...

Page 108: ...Page 104 of 110 Theory Figure 4 5 Digital Signal Processor Es Ex CPU DSP A D Vin A Vin B...

Page 109: ...insure expedient processing although units found to be in warranty will be repaired at no charge For any questions on repair costs or shipment instructions please contact our CCC Department at the abo...

Page 110: ...plus 0 327 for the 1910 accuracy This also applies for secondary parameters as well Primary and secondary accuracy specifications given in the Verification Data Sheet are based upon the accuracy formu...

Page 111: ...rce External Source Impedance 25 ohms Cable Compensation 1M Frequency Edit Type Continuous Connections to all standards should be via a 1 meter cable A multiple frequency open and short correction sho...

Page 112: ...000 1 0 116 0 0012 100000 1 0 163 0 0016 1000000 1 0 761 0 0076 R6K Freq Pri Actual Sec Actual Voltage Primary Meas Sec Meas Q Pspec Sspec 1000 1 0 117 0 0012 10000 1 0 117 0 0012 100000 1 0 196 0 002...

Page 113: ...100000 1 0 256 0 0060 1000000 1 1 248 0 0678 C200pF Freq Pri Actual Sec Actual Voltage Primary Meas Sec Meas Df Pspec Sspec 1000 1 0 326 0 0037 100000 1 0 208 0 0049 1000000 1 0 930 0 0504 C500pF Fre...

Page 114: ...ay stop during this initialization the number displayed serves as a diagnostic tool The numbers correspond to the following functions 1 Verifies initializes if necessary cal data corresponding to No C...