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1910 Inductance Analyzer User and Service Manual

1. Bias Control picas E Detector i G y Power Analog to Buffer CPU Bus B Digital D Converter S ED Sine Wave E and Sample Digital Sinal Pulse Processor Generator I C 0 Embedded Computer A Display and Remote Keyboard Interfaces K L Page 100 of 110 Figure 4 1 1910 Instrument Block Diagram Theory 4 2 Principal Functions 4 2 1 Fundamental Measurement The fundamental measurement technique is illustrated as a simplified diagram in Figure 4 2 A sine wave generator drives current IH through the DUT and a standard resistor 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 Ex Voltage DUT S ine Generator Rs Es Current Figure 4 2 Fundamental Measurement Notice that this ratio is complex The embedded computer converts from the complex impedance Zx to any of the available parameters for example C and DF mathematically Theory Page 101 of 110 4 2 2 Sine Wave and Sampling Pulse Generation The direct digital sine wave synthesizer chips increment the phase of two sine waves internally at each clock cycle The two sine wave signals are output from the chips differential analog signals One of the outputs is as the signal source
2. For measurement integrity the 1910 includes four terminal Kelvin connections and a load correction feature whereby a measurement is performed on a known standard and a correction applied to subsequent measurements Introduction Page 31 of 110 1 3 Front Panel Description Figure 1 1 shows the controls and indicators on the front panel of the 1910 Inductance Analyzer Table 1 1 identifies them with descriptions and functions 12 13 14 15 16 17 y y 1910 Inductance Analyzer uadTech Bias On Remote Lockout UTILITY PROGRAM STOP START rot T i t t f f t 11 10 9 8 7 6 5 4 3 2 1 Figure 1 1 Front Panel Controls and Indicators Table 1 1 Front Panel Controls and Indicators Reference Name Type Function Figure 1 1 1 POWER Rocker Switch Applies AC power to unit 1 ON 0 OFF 2 START Push Button Starts a measurement 3 STOP Push Button Stops any measurement in process 4 Left Right arrows In READY mode moves to the next or previous test parameter for viewing In PROGRAM or UTILITY mode moves to the next or previous parameter for programming 5 Up Down arrows In READY mode goes to next or previous test for viewing In PROGRAM or UTILITY mode changes the condition of the selected parameter 6 PROGRAM Push Button Enter amp exit PROGRAM mode for changing test conditions 7 UTILITY Push Button Enter or exit the UTILITY mode for functional changes which affect
3. 2 5 12 Freq Edit Type This function allows the operator to choose the test frequencies that will be available for selection refer to paragraph 2 3 3 Discrete giving 16 possible frequencies and Continuous covering the entire frequency range from 20 Hz to 1 MHz When discrete is selected the 16 possible frequencies are 20 50 100 200 400 500 Hz 1 2 5 10 20 50 100 200 500 kHz and 1 MHz A Up or Down y row key Freq Edit Type Util to change frequency type Discrete Freq Edit Type Util Continuous Right gt arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Operation Programming Page 75 of 110 2 5 13 Median This function allows the operator to choose single or median measurement mode When median of 3 is selected three individual measurements are made the lowest and highest values are discarded and the median value displayed Median mode can improve instrument accuracy by specified accuracy divided by 3 but never less than 0 1 A Up or Down y aow key Median Util to change median Single Meas Median Util Median of 3 Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode 2 5 14 Distortion This function allows the operator to choose a distortion check during ac testing When set to Check during AC test the unit will detect distortion during a measurement and indicates the message Signal Distorted if this
4. PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT 4 1910 Inductance Analyzer User and Service Manual Copyright O 2012 IET Labs Inc Visit www ietlabs com for manual revision updates 1910 im A pril 2012 O e a E ET LAB S I N C www ietlabs com 534 Main Street Westbury NY 11590 TEL 516 334 5959 800 899 8438 FAX 516 334 5988 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT 4 EDET LAs ING en 534 Main Street Westbury NY 11590 TEL 516 334 5959 800 899 8438 FAX 516 334 5988 WARRANTY We warrant that this product is free from defects in material and workmanship and when properly used will perform in accordance with applicable IET specifications If within one year after original shipment it is found not to meet this standard it will be repaired or at the option of IET replaced at 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 not be liable for any indirect special or consequential damages even if notice has been given to the possibility of such damages THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE AN WARNING AN OBSERVE ALL SAFETY RULES WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES Dangerous volt
5. The other output is filtered low pass and connected to the comparator input of the DDS to 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 simultaneously sampling two channel analog to digital converter The two samples are taken very nearly at the same time Any delay of one channel relative to the other is calibrated out digitally during the calibration process Figures 4 3 4 4 and 4 5 further illustrate the signal flow and test points within the 1910 Inductance Analyzer Level Control CPU Eo DDS Figure 4 3 Signal Generation Page 102 of 110 Theory Current Figure 4 4 Detector Circuits Theory Page 103 of 110 Figure 4 5 Digital Signal Processor Page 104 of 110 Theory Section 5 Service amp Calibration 5 1 General Our warranty at the front of this manual attests to the quality of materials and workmanship in our products If malfunction should be suspected or other information be desired applications engineers are available for technical assistance Application assistance is available in the U S by calling 800 253 1230 and asking for Applications Support For support outside of the United States please contact your local IET Labs Distributor 52 Instrument Return Before returning an instrument to IET Labs for Service please obtain an online Return
6. Verifies initializes if necessary single tests 8 Verifies initializes if necessary multi tests 9 Booting the Digital Signal Processor DSP 10 Initialization complete In case a problem should occur with the front panel display the Remote I O bin outputs 1 thru 10 are also activated during this initialization process Refer to paragraph 3 2 for the pin out of Bins 1 through 10 Page 110 of 110 Service amp Calibration
7. Ze Aly SAIS COMP O 77 2 3 12 Prequen Gy Edit Typ seninns aii each ans 77 De Dol Be Mt sl aun soptoanedsoadustaen 78 2 34 Distort ON oci0ssoe cheat ve verde tds 78 DO LO Sena l NUDE sis 79 ISO Software Y COSTO la lali 79 2 6 FM e Sas 79 Interface Section 3 3 1 CU ii A A 81 3 2 Remote FOs rasen e aaa E E a 81 3 3 RS 232 nterface ea rro A a lic iia 83 3 4 TERE 488 2 Interface iu add 84 3AT General A A E E naa 84 3 4 2 IEEE 488 Connections o oocoooooncnncnnnnnnnononononcnnononnnnonononnnnononnnnonononcnconons 85 3 4 3 IEEE 488 amp RS 232 Commands oococooooooonnnoncnnnonnnanonononccnonnnnnnonononcnnons 86 344 Remote Calibration ornitina n in iiaea 92 3 4 3 Formats mionra e eer e e a a a a a anaie a 96 Page 2 of 110 Contents continued Theory Section 4 4 1 tro UCM ti cio can 4 1 1 Description of 1910 Inductance Analyzer oonoccn 41 2 Block Di gr M sceri ida 4 2 Principle Functions eiii nintendo ieaeeatadescacerassic suds diendo siendo 4 2 1 Fundamental Measurement cococcccnnncnnnnnnnnnnnnnnnnaninananess 4 2 2 Sine Wave and Sampling Pulse Generator ELO Disttization A AA a E Maintenance Section 5 5 1 General e a a a a a a aA 5 2 Instrument Returns scccevcd cass geicatsecicedssusscasvavedcadesacueasvencededs diia 5 3 Calibration ainia ii 5 3 1 1910 Verification Procedure ccccnncoononnnonoccononnnnanannnss 5 3 2 1910 Verification Data Sheet ccconcnnoncnnoncccnnnnnnnanann
8. when selected will hold the optimum measurement 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 it Range Lock allows the operator to select one of the fixed ranges as listed below In either case it is important to note that when a range is held or locked which is not the range that instrument s auto ranging would of selected for DUT impedance and programmed test conditions some accuracy may be sacrificed or the instrument may be unable to complete a test of a particular DUT Up or Down arrow key 1 Range Select Program to change range Auto 1 Range Select Program Hold 1 Range Select Program Lock 200 mA any F 1 0V 27 ranges 45 for DC 1 Range Select Program Lock 2 6uA F lt 10K 62 mV Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Page 46 of 110 Operation Programming Table 2 2 Manual Range Selection AC Impedance Measurements DCR amp DCV Measurements Maximum Maximum User Programmed Maximum Measurable Voltage Measurable AC Test Frequency Measurable DC Across DUT Current to DUT Current to DUT VV MEASURE IMEASURE AC FPROGRAMMED IMEASURE DC 200mA 20Hz to 1 MHz 200mA 40mA 20Hz to 1 MHz 40mA 10mA 20Hz to 1 MHz 10mA 2 67mA 20Hz to 1 MHz 2 67mA lV 668A 20Hz to 1 M
9. A 3 1700 03 BNC 4 Connectors to 2 Kelvin Clip Lead Set _H 1700 04 gt L CUR Figure A 4 1700 04 BNC 4 Connectors to Banana Plugs 4 Page 10 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 11 of 110 Accessories Continued Right Flange f 4 Left T Flange Figure A 8 2000 16 Rack Mount Flanges The 2000 16 Rack Mount Flanges quantity 2 left and right are used as dress panels to adapt the 1910 to the standard 482 6 mm 19 inch rack width THESE FLANGES SHOULD NOT BE USED AS SOLE MOUNTING SUPPORT OF THE 1910 in rack mount applications Chassis guides or other mechanical support is required to support the instrument Chassis guides are 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 SOURCE FOR SEVERAL MINUTES BEFORE PROCEEDING 1 Remove the 4 screws and washers two each side on the front side cover 2 Mount the two flanges using the screws and washers previously removed Note that the flange with the cutout is to be mounted on the right so as not to cover up the side vent holes Refer to the figure below Secure with 2 screws and washers Flange A1
10. A IN 36 1 5 2 Instrument Positioning vesical ia ionnicaiicds 36 1 5 3 Power REQUINEMICIIUS aula is 36 1 5 4 Safety Inspection ennui aida colinda roto a teccete nes 38 Operation Section 2 Terms and Conventions SAA 39 LOU A EER 41 Program Setup Procedure Test 1 25 oooocccnnccinonccononccconanccooncnonnnnccnnnnccinnnnss 41 2X31 Primary Para Meter ads 42 2 3 2 Secondary Parameter siii ler ideada 45 2 330 A aea e a E Ea E E 46 eA GATIONS A AE E EE E E E 46 Dee o Blas A WUE CMU ee E E E ated age aaa 47 2 3 0 Range Selectie rnea ic 48 23T ACUTA Y ea a EE E Ea A EAE R SE RES 50 2 387 Delay dais 53 2 3 9 No to AVerag siii nennen n n E ane 54 2 3104 Primary Nominal essnee ne e aE E ave salen ER ES 55 ZII LA BAN PY Pe Ai 56 23 12 Secondary Nom lor dot ia 59 Contents continued 23 13 Load AAA day tala Se cha Gah tai ip eds iat Sealab 60 2 3 14 Primary Load Correction ati deat ucctoss Saeed 61 2 3 15 Secondary Load Correction iiiscjssccisvacsesasesyecsaaessacdssoacacoanseseasetesssceeasy 61 24 Program Sequence Test S1 S9 x icccisicsiascicssccesastssadeaaeseceessuteen cancsenetaessactecen 62 2 5 A OA 64 2 5 1 Perform Calibration ainean ea ia a e i R 65 29 2 Keypad LOCO IO 69 2 Display Lype srani A a E ANE T2 234 Numerico 73 2 9 3 A ae a r EE A E Ea aeS aE 74 23 6 SOUPS IMPONE id iaa 74 23 7 ORS 232 Baud Rate ai o 75 2 9 8 IEE EAS GROCER aii E a AAA 75 Za Clear A esta lar 76 210 A elle lee tae etree ee dalle 76
11. Display Type After last lockout digit Press the RIGHT arrow to select display type i Display Type Util Right gt Measured Parameters Press the UP or DOWN arrow to change display type Measured Parameters Dev from Nominal Dev from Nominal UP A Display Type Util Dev from nominal Numeric Format Press the RIGHT arrow to select numeric format Right P gt Numeric Format Util Engineering Press the UP or DOWN arrow to change numeric format type UP A Numeric Format Util Engineering or Scientific Scientific Trigger Source Press the RIGHT arrow to select trigger source Trigger Source Util Right Internal Press the UP or DOWN arrow to change trigger source type UP A Trigger Source Util Internal or External External Page 24 of 110 Tester Utility Functions continued Source Impedance Press the RIGHT arrow to select source impedance A Right gt ae impedance Uti Press the UP or DOWN arrow to change source impedance UP A Source Impedance Util 50 250 509 or 1000 1000 RS 232 Baud Rate Press the RIGHT arrow to select RS 232 baud rate Right da Baud Rate Util Press the UP or DOWN arrow to change RS 232 baud rate value UP A RS232 Baud Rate Util 9600 19200 9600Auto 19200 19200Auto or Disabled IEEE 488 Address Press the RIGHT arrow to select IEEE 488 address gt IE
12. Inductor 10 uH nominal value Inductor 100 uH nominal value Inductor 1000 uH nominal value Standard Open and Short Resistance Standards 4 Terminal Resistor 95K ohm nominal value Resistor 6K ohm nominal value Resistor 374 ohm nominal value Resistor 25 ohm nominal value Resistor 500m ohm nominal value Capacitance Standards 2 or 4 Terminal Capacitor SOpF nominal value Capacitor 100pF nominal value Capacitor 200pF nominal value Capacitor 500pF nominal value Capacitor 1000pF nominal value Capacitor 0 1uF nominal value Capacitor 0 05uF nominal value Capacitor 0 02uF nominal value Capacitor 0 01uF nominal value Capacitor 0 002uF nominal value Page 106 of 110 Service amp Calibration Measurement Procedure The 1910 should be set to the following TEST CONDITIONS Parameter Automatic Frequency Selected per data sheet below Amplitude 1 Volt Bias Voltage Off Measure Range Auto Accuracy High Delay Off Averaging 1 Binning Off UTILITY FUNCTIONS Trigger Source 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 should be performed prior to any measurements See paragraph 2 5 1 for information on performing an open and short correction Connect each standard listed in the Verification Data Sheet and select the test frequency
13. Primary Secondary Test Parameter Paramete Frequency Test 1 Ls Rs 1 0000 KHz Number 1 000V NoBias Auto High To READY state AC Test Bias Measurement Measurement Voltage Current Range Accuracy Page 15 of 110 Programming Test Conditions Programming Test Conditions Press the UP or DOWN arrow to select test location where test conditions are stored UP A Press PROGRAM to enter programming mode PROGRAM 1 Ls Rs 1 000kKHz 1 000V NoBias Auto High 1 Prim Param Automatic Program Measured Parameters Test 1 30 Sequence Test S1 S10 Refer to paragraph 2 4 Press PROGRAM at any time to exit programming mode Press the UP or DOWN arrow to select measurement parameter UP A 1 Prim Param Ls Program Automatic Ls Lp Rs Rp Cs Cp DF Q Z Y P ESR Gp Xs Bp V DCV DCR DCI Press the RIGHT arrow to select secondary measurement parameter Right p gt 1 Sec Param Program No Secondary param Not shown if Primary Parameter is set to Automatic Press the UP or DOWN arrow to enter secondary measurement parameter UP A Frequency Press the RIGHT arrow to select test frequency Right p gt 1 Sec Param Program 1 Frequency Program 20 000 Hz Ls Lp Rs Rp Cs Cp DF Q Z Y P ESR Gp Xs Bp V No secondary parameter Not shown if Primary Parameter is set to DCV DCR or DCI Press th
14. all tests 8 IH BNC female connector Current high connection to DUT 9 PH BNC female connector Potential high connection to DUT 10 PL BNC female connector Potential low connection to DUT 11 IL BNC female connector Current low connection to DUT 12 LOCKOUT Green LED Indicator Indicates front panel keypad lockout is enabled 13 REMOTE Green LED Indicator Indicates instrument has been enabled for remote operation 14 BIAS ON Green LED Indicator Indicates internal or external DC is bias applied 15 LCD Display Indicates programmed test conditions and instrument function or measured test results 16 FAIL Red LED Indicator Indicates measured results failed based on programmed limits 17 PASS Green LED Indicator Indicates measured results passed based on programmed limits or test is complete if no limits are programmed Page 32 of 110 Introduction 1 4 Rear Panel Description Figure 1 2 shows the controls and connectors on the rear panel of the 1910 Inductance Analyzer Table 1 2 identifies them with descriptions and functions FUSE 250 NO USER SERVICEABLE PARTS INSIDE TO PREVENT ELECTRICAL SHOCK DO NOT OPEN COVERS REFER TO QUALIFIED PERSON CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE V 100 240V T2 5A 5x20mm 100 240V 50 60Hz 100 WATTS MAX MADE IN USA KA RS 232 e vo Figure 1 2 Rear Panel View Table 1 2 1910 Rear Panel Control
15. from Nominal of Primary Parameter Deviation from Nominal of Primary Parameter No Display for maximum throughput TEEE 488 RS 232 Handler I O 0 to 100s programmable in 10 ms steps 1 to 1000 programmable Bench Mount optional rack mount flanges available 2000 16 w x hx d 432x133x406mm 8kg net 9 9kg shipping MIL T28800E Type 3 Class 5 Style E amp F Operating 0 to 50 C Storage 40 to 71 C Humidity lt 75 for lt 40 C operating Altitude lt 2000m Installation Category 1 Pollution Degree 1 100 to 240VAC 50 60Hz 100W max Accessories Accessories Included Item Quantity IET Labs P N AC Power Cord 1 4200 0300 Power Line Fuse installed in instrument 1 520049 Instruction Manual 1 150491 Calibration Certificate 1 N A Accessories Options A vailable 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 Connectors to 2 Chip Component Tweezers 1 7000 05 4 BNC to 4 BNC Cable Set 1 meter 1 1689 9602 4 BNC to 4 BNC Cable Set 2 meters 1 1689 9602 2 Low Voltage Chip Component Test Fixture 1 7000 07 Rack Mount Flanges 1 2000 16 Page 9 of 110 Accessories Continued Figure A 2 1689 9600 Axial Radial Remote Test Fixture 1700 03 gt High C Ba Low Chassis L CUR Figure
16. from the instrument remove the clear fuse tray from the drawer by lifting upward slightly on the long narrow black locking tab This will allow the fuse tray to be removed from the fuse drawer This tray contains the active fuse left side secured by holder and spare fuse on the right side if present Refer 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 been installed in the holder and spare fuse if desired installed in the right side of the tray insert the tray back into the fuse drawer push in and lock The two silver contacts on the fuse tray should be positioned towards the outside Once the fuse tray has been installed in the drawer reinstall the fuse drawer back into the instrument AC inlet module push in and lock Introduction Page 35 of 110 Contacts Spare fuse Active f in hol ctive fuse in holder this side this side Locking Figure 1 5 Fuse Drawer Detail 1 5 4 Safety Inspection A Before operating the instrument inspect the power inlet module or the rear panel to ensure that the properly rated fuse is in place otherwise damage to the unit is possible Refer to paragraph 1 5 3 The instrument is shipped with a standard U S power cord IET Labs P N 4200 0300 with Belden SPH 386 socket or equivalent and 3 wire plug conforming to IEC 320 Make sure the
17. imaginary components of impedance and converts these into Capacitance Cs Cp Inductance Ls Lp Resistance Rs Rp Dissipation DF and Quality Q Factors Impedance IZI Admittance IYI Phase Angle 0 Equivalent Series Resistance IESRI Conductance Gp Reactance Xs Susceptance Bp Any two parameters can be measured and displayed simultaneously In the above parameters the subscript s denotes series equivalent circuit while subscript p denotes parallel equivalent circuit Page 98 of 110 Theory 4 1 2 Block Diagram The block diagram Figure 4 1 shows the embedded computer connected via a CPU bus B composed of address control and data lines to the other major functional blocks of the circuit The embedded computer includes the following types of memory RAM for Program execution FLASH for non volatile program storage EEROM for storage of calibration data instrument configuration and test setups The basic sine wave for excitation is generated in block C The embedded computer loads two values into block C The first value sets the basic frequency of the sine wave The second value sets the frequency of the sampling pulse The frequency of the sampling pulse is harmonically related to that of the sine wave The generation process is described in section 4 2 2 The sine wave is fed from block C to block D the power buffer The embedded computer configures the power buffer to control the excitation level and voltag
18. the detection circuitry this includes the reference resistor the gain in the current and voltage detectors and analog filtering optimized for the frequency of excitation There are five reference resistors each of which covers an impedance range of 15 1 and 5 1 at the lowest impedance The reference resistor is normally chosen by the embedded computer to match the impedance of the unknown as closely as possible However the user may override this function which can improve measurement speed in specialized applications Gain in the voltage detector and current detector is normally chosen by the embedded computer to optimize the performance of the digitization process The optimum gain in both detectors depends on excitation level frequency and DUT impedance As with the reference resistor this can be overridden by the user The embedded 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 These times can be lengthened somewhat depending on the frequency of excitation averaging median and other conditions The embedded computer also controls the local user interface keyboard and display and the remote interfaces RS 232 IEEE 488 and handler interface A separate Digital Signal Processor DSP performs the high speed calculations inherent in the measurement technique The DSP computes the real and
19. 1 Y Gp Bp 10nS to 9999 98 0 005 0 0025 0 001 IZI Rs Rp Xs ESR 0 00001mO to 99 999MQ 0 5 0 25 0 1 Phase Angle 180 00 to 179 99 1 8 0 9 0 18 DCR 0 1000mQ to 100 00kQ 0 5 0 25 0 2 DUT AC Voltage 20mV to 1 000V 2 5mV O 1kHz DUT AC Current 1 0001A to 150 00mA 2 5uA 1kHz DUT DC Voltage 20mV to 1 000V 2 5mV DUT DC Current luA to 150mA 2 5uA Test Frequency Measurement Speed Ranging Trigger Source Impedance AC Test Signal DC Test Signal Range 20Hz to 1MHz Resolution 1 0Hz from 20Hz to 1kHz 4 digits gt 1kHz Accuracy 0 02 0 02Hz Accuracy Setting Low No Display Speed 40 meas sec 25 meas sec Low 10 meas sec Medium 1 meas sec High May be longer depending on test conditions amp frequency DC measurements take 2x as long as AC measurements Automatic Range Hold or Locked Internal automatic External via RS 232 IEEE 488 or Handler interfaces Manual 50 250 500 or 1000 20mV to 1 0V open circuit in 5mV steps 20mV to 1 0V open circuit in 5mV steps 5Q source impedance Page 7 of 110 Bias Current Display Results Format Interfaces Measurement Delay Averaging Mechanical Dimensions Weight Environmental Power Page 8 of 110 Specifications Continued Internal External 1mA to 1A in 1mA steps 0 to 20A in 5mA steps using IET Labs 1320 LCD display with backlight Engineering Numeric Deviation
20. 1 averaging is disabled and the display is updated with each individual measurement If the entered average is 10 the instrument will make 10 measurements and 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 1 measurement accuracy over the single measurement accuracy by Ta but never less than 0 1 n for the parameter and 0 1 or 0 001 for the secondary n no to average 1 No to avg Program A Up or Down arrow key to change to average 1 1 to 999 1 No to avg Program 999 Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Page 52 of 110 Operation Programming 2 3 10 Primary Nominal The Primary Nominal value programmable by the operator can serve as a basis for three functions 1 The nominal value for the primary binning functions Refer to paragraph 2 3 11 2 The nominal value for calculating Deviation or Deviation when the measurement results are programmed to be display in this format Refer to paragraph 2 5 3 3 The nominal value or actual known value when implementing the load correction feature of the 1910 Refer to paragraph 2 3 13 This function allows the user to select a nominal value for the primary displayed parameter selection of nominal value for the secondary parameter is discussed in paragraph 2 3 12 O
21. 1 Ls Rs 1 0000 KHz READY mode for testing 1 000V NoBias Auto High or Press UTILITY key then Right p arrow key to program other Utility functions NOTE Quick short and open data are deleted by going in and out of PROGRAM mode or by programming any parameter of the current single test via remote The procedure for measuring the OPEN and SHORT corrections is optimized for fixtures and lead sets having a maximum uncompensated series impedance no greater than 50mQ and a parallel shunt capacitance no greater than 5pF If a SHORT calibration 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 FAIL light will be lit to indicate that this is happening Similarly the applied voltage will be reduced as necessary during an OPEN calibration to keep the current within range for each frequency range combination However measurement accuracy will be degraded on some ranges if the uncompensated series impedance is greater than 250mQ or the parallel capacitance is greater than 25pF l Uncompensated Series P Impedance and Parallel Shunt Capacitance in a SHORT configuration l e ROSA p Page 66 of 110 Operation Programming 2 5 2 Keypad Lockout Selection of Off allows the operator to modify any stored test conditions and use all functions of the instrument with no restrictions When a password
22. 1 Sec LoLim Program key to change secondary 8 0000 parameter Hi limit Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Operation Programming Page 57 of 110 2 3 13 Load Correction Load correction allows the user to specify the value of the component under test user supplied standard and apply a correction to subsequent measurements of similar components under the same test conditions This feature corrects for instrument non linearity and for fixture effects which can be dependent on the test frequency test voltage level or impedance range Measurement accuracy is 0 25 x normal accuracy with Load Correction implemented and compared to user supplied standard and for the same measurement conditions test voltage test frequency and 1910 measurement range This increased accuracy applies in a range of DUT s with impedance Z between 3Q and 800kQ with programmed voltage from 100mV to 1V Load correction can be set to 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 primary and secondary nominal values previously entered Refer to paragraph 2 3 10 and 2 3 12 After a correction measurement load correction is turned on and the values can be observed in Primary and Secondary Load Correction displays Refer to paragraphs 2 3 14 an
23. 5 00 kQ 125 00 kQ A y Up or Down arrow key 1 Bin Type Program to change bin type Off 1 Bin Type Program Pct Deviation Right P arrow key to select bin 1 limitsin 1 Bin 1 HiLim Program Off Up or Down A row Note 5 h Y 1 1 Bin 1 HiLim Program ote ey to change bin 200 00 Hi limit To set a Hi and Lo limit to Off 200 to 100 A Up or Down arrow to change one of the limits to the value entered for its counterpart For example 1 Bin 1 HiLim Program If the Absolute HiLim is 1100 and 100 00 LoLim is 9002 or deviation limits are 10 and 10 Down Y arrow the HiLim to 900 or 10 to select Off Right arrow key to 1 Bin 1 LoLim Program Off A Up or Down ow 1 Bin 1 LoLim Program key to change bin 1 200 00 Lo limit 200 to 100 1 Bin 1 LoLim Program 100 00 Operation Programming Page 55 of 110 Right arrowkeyto 4 Bin 2 HiLim Program select bins 2 thru 10 Off Hi and Lo limits A Up or Down Warrow Bin 2 thru 10 Hi amp Lo limits to change them i 1 Bin Type Program PROGRAM key at 1 Bin 10 LoLim Program any time to return to Off Ready mode Absolute Right gt arrow key to select bin limits in 1 Bin 1 HiLim Program absolute 100 00 mH A Up or Down y arrow FF key to change bin 1 1 Bin 1 HiLim Program Hi absolute limit 110 00 mH Right P arrow key to select bin 1 Lo limit in 1 Bin 1 LoLim Program absolute 90 000 mH A Up or Down arrow a t
24. EE 488 Address Util Shown only if RS 232 Baud Right 1 Rate is Disabled Press the UP or DOWN arrow to change IEEE 488 address value UP A oo Util 1 through 16 Page 25 of 110 Tester Utility Functions continued Clear All Tests Press the RIGHT arrow to select clear all tests Right gt el All Tests Util Press the UP or DOWN arrow to change clear all tests UP A Clear All Tests Util No or Yes Yes NOTE If YES is selected press Right arrow Up arrow and Right arrow again to clear all tests Leveling Press the RIGHT arrow to select leveling Right gt a Util Press the UP or DOWN arrow to change leveling value UP A pe Util Off or On Cable Compensation Press the RIGHT arrow to select cable compensation Right gt Cable Comp Util Front Panel Connect Press the UP or DOWN arrow to change cable compensation type UP A 1M Cable Cable Comp Util 1M 2M or No Cable Page 26 of 110 Tester Utility Functions continued Frequency Edit Type Press the RIGHT arrow to select frequency edit type Freq Edit Type Util Right gt Discrete Press the UP or DOWN arrow to change frequency edit type UP A Freq Edit Type Util Continuous or Discrete Continuous Refer to paragraph 2 5 12 Median Press the RIGHT arrow to select median Median Util Right Single Meas Press the UP or DOWN
25. F Freq i Actual Actual Primary Meas a Pspec 1000 0 158 100000 0 170 1000000 0 677 Primary Meas Pspec 0 137 100000 0 165 1000000 0 649 Service amp Calibration Page 109 of 110 Pri Actual Sec Actual Voltage Primary Meas Sec Meas Pspec Sspec 0 120 100000 0 162 1000000 0 654 Pri Actual Sec Actual Primary Meas Sec Meas Pspec 0 118 100000 0 162 1000000 0 689 Pri Actual Sec Actual Primary Meas Sec Meas Pspec 0 116 100000 0 165 1000000 0 802 Pri Actual Sec Actual Primary Meas Sec Meas Pspec 0 116 100000 0 170 1000000 0 998 5 4 Diagnostics 5 4 1 Start up Diagnostics On start up the unit displays step numbers during the initialization process Should the display 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 Cable direction connection to the front panel 2 Verifies initializes if necessary cal data corresponding to 1 M Cable 3 Verifies initializes if necessary cal data corresponding to 2 M Cable 4 Verifies initializes if necessary calibration kit data 5 Verifies initializes if necessary test and step values 6 Verifies initializes if necessary Utility setting and password 7
26. Figure A 9 Flange Mounting Page 12 of 110 Safety Precautions The 1910 Inductance Analyzer can provide an output voltage to 1 0V AC and current to 1A DC to the device under test DUT Although the 1910 unit is designed with full attention to operator safety serious hazards could occur if the instrument is used improperly and these safety instructions are not followed 1 The 1910 Inductance Analyzer unit is designed to be operated with its chassis connected to earth ground The instrument is shipped with a three prong power cord to provide this connection to ground This power cord should only be plugged in to a receptacle that provides earth ground Serious injury can result if the 1910 Inductance Analyzer is not connected to earth ground Tightly connect the 4 BNC test cables or test fixture to the front panel connectors If this is not done improper measurements are possible or an electrical shock to the operator could result if the DUT is touched Never touch the test leads test fixture or DUT in any manner this includes insulation on all wires and clips when the bias current is applied and the BIAS ON light is on Before turning on the 1910 Inductance Analyzer unit make sure there is no device DUT or fixture connected to the test leads Before touching the test leads or device under test make sure a Any capacitive device has had enough discharge time b The green BIAS ON
27. Hz 668A 167uA 20Hz to lt 250 kHz 167uA 42uA 20Hz to lt 250 kHz 42uA 11uA 20Hz to lt 10 kHz 11uA 2 6uA 20Hz to lt 10 kHz 2 6uA 250mV 7 ranges as listed 7 ranges as listed 7 ranges as listed above above above 62mV 7 ranges as listed 7 ranges as listed 7 ranges as listed above above 200mA range above 200mA range not recommended not recommended 22mV 7 ranges as listed above 200mA range not recommended 6mV 7 ranges as listed above 200mA and 40mA range not recommended 1910 Source Resistance V MEASURE NOTE The best way to determine the optimum range for a test device at programmed conditions is to change the primary parameter selection to V AC voltage across the device secondary parameter to I current through the device and initiate a test The voltage and current measured can be compared to the previous table where the appropriate range is determined with the measured values falling below the maximums listed Operation Programming Page 47 of 110 2 3 7 Accuracy This function allows the user to program four possible setting for measurement accuracy Low Medium High or Low No Display Note that when programmed for Low No Display measurement data is not available via IEEE 488 or RS 232 interfaces but only available as binning data through the Remote I O interface The instrument will make a more precise measurement when programmed for High but there is a tradeoff in measurement speed as indicated in Tabl
28. LED is NOT lit In the case of an emergency turn OFF the POWER switch using a hot stick and disconnect the AC power cord from the wall DO NOT TOUCH THE 1910 INSTRUMENT Position the equipment so it is easy to disconnect Disconnect by means of the power plug or power connector When the 1910 Inductance Analyzer instrument is used in remote control mode be extremely careful Output voltage or current can be turned on and off with an external signal Page 13 of 110 Safety Symbols The product is marked with the following safety symbols A Product will be marked with this symbol ISO 3864 when it is necessary for the user to refer to the instruction manual in order to prevent injury or equipment damage Product marked with this symbol IEC417 indicates presence of direct current A Product will be marked with this symbol ISO 3864 when voltages in excess of 1000V are present ER Indicates the grounding protect terminal which is used to prevent electric shock from the D leakage on chassis The ground terminal must connect to earth before using the product Warning Procedure can cause 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 procedures and applications Warning Signal During Testing DANGER HIGH VOLTAGE TEST IN PROGRESS UNAUTHORIZED PERSONS KEEP AWAY D
29. Materials Authorization Number RMA This number when placed on the outside of the shipping package will speed processing at our Service Lab and will serve as a reference number for the time your unit is at IET Labs Please contact our Customer Care Center CCC at 800 253 1230 for additional support The CCC phone line is staffed from 8 00am to 5 00pm EST It will be necessary to include a Purchase Order Number and credit card information to 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 above number To safeguard an instrument during storage and shipping please use packaging that is adequate to protect it from damage i e equivalent to the original packaging and mark the box Delicate Electronic Instrument Please follow online instructions for shipping materials back to IET Labs 5 3 Calibration Calibration of the 1910 Inductance Analyzer is completed at the factory and includes a NIST calibration certificate Verification of instrument operation and accuracy is recommended on an annual basis Accurate operation of the 1910 instrument is confirmed using the following verification procedure 5 3 1 1910 Verification Procedure This section outlines the relevant information to verify performance of the 1910 Inductance Analyzer It is recommended that performance be performed at least o
30. Standard Event Status Enable Register by issuing an ESE command per paragraph 11 5 1 3 Interface Page 95 of 110 Section 4 Theory 4 1 Introduction The model 1910 Inductance Analyzer uses a principle of measurement which is based upon a technique developed by IET Labs for its 7000 Series of Precision LCR Meters In particular the model 1910 employs digital techniques for signal generation and detection as well as for the more usual data processing user input output and remote communications functions The following section provides a general overview of the model 1910 measurement technique for one familiar with impedance measurement and modern instrumentation Subsequent sections provide detailed descriptions of operation circuit block diagrams and system level control signals 4 1 1 Description of 1910 Inductance Analyzer In the model 1910 Inductance Analyzer the voltage across the device under test DUT is measured and the current through the DUT is measured across a reference resistor Rs which carries substantially the same current The voltage across the DUT is Ex and the voltage across Rs is Es Both voltages are sampled many times per cycle of the applied sine wave excitation Ex and Es are essentially simultaneously sampled There are five reference resistors in the 1910 the one used for a particular measurement is the optimal resistor for the device under test frequency and amplitude of excitation These characteristics ar
31. a ERRMSG When error messages are presented on the front panel they are also logged in a 16 deep queue and the device dependent error bit is set in the ESR The response to this query consists of the text of each error message in the log with each line followed by lt CRLF gt and and additional lt CRLF gt 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 format will be nn lt tab gt h hhhehh lt tab gt 1 1llell lt tab gt cecce lt CRLF gt Where nn is the bin number h and are digits of the high and low limits and c the digits of the bin count primary units for bins 1 10 and secondary units for bin 11 Numeric limits for bins 12 14 will always return 0 since these bins do not have independent limits If bin is disabled format will be nn lt tab gt Disabled lt tab gt lt tab gt If all primary bins are disabled Bin 1 is used to count devices which pass secondary limits and will be returned as 1 lt tab gt Both Pass lt tab gt lt tab gt cccc When test is a sequence test format will be 1 lt tab gt PassAllSteps lt tab gt lt tab gt cccc nn lt tab gt FailStepm lt tab gt lt tab gt cccc Where nn is bin numbers 2 through 7 and m is the corresponding test number which is nn 1 Page 88 of 110 Interface Table 3 4 Continued IEEE amp RS 232 Commands Command Function Parameter s NOTE Bin limits are always re
32. a test 1 Ls Rs 1 0000kHz 1 000V No Bias Auto High 2 Test conditions and Utility functions should be programmed as previously described in this section OR Select the test number by pressing the Up or Down arrow key if known test conditions are already stored in internal memory 6 PrimParam Ready Automatic Page 28 of 110 3 4 5 Make sure the device under test DUT is connected to the instrument as previously described To initiate a test on the device press the START key The LCD display shows the measured results depending on the operator programming of Display Type and Numeric Format Typical display is shown below Measured Parameters Deviation from Nominal Deviation from Nominal Other variations of measurement results Numeric Format Scientific 1 Ls 158 460 uH Bin 1 Q 2 4890 1 dev Ls 8 460uH Bin 1 Q 0 4890 1 dev Ls 5 46 Bint C Q 22 25 1 Ls 1 5749e 04 H Bin C Q 2 4428 Binning On Load Correction On Binning Off Load Correction On If binning is enabled the Pass or Fail indicator will be lit at the completion of test Even if binning is not enabled the Pass indicator will still light at the end of the test indicating the test has been completed Page 29 of 110 Section 1 Introduction 1 1 Unpacking Inspection Inspect the shipping carton before opening If damaged contact the carrier agent immediately Insp
33. ace Page 81 of 110 db9 to db9 Cable Configuration Receive data Connect Transmit data Transmit data to Receive data Data terminal ready Data set ready Signal ground Signal ground Data set ready Data terminal ready Pin Receive data Transmit data Transmit data Receive data Data terminal ready Data set ready Signal ground Signal ground Data set ready Data terminal ready Figure 3 3 RS 232 Cable Configurations 3 4 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 number of instruments and a controller in which each meets IEEE Standard 488 2 Standard Digital Interface for Programmable Instrumentation Refer to Table 3 3 below for a full tabulation of connections and Table 3 4 for the command set The following functions have been implemented Refer to the standard for an explanation of the function subsets represented by the identifications below SH1 Source Handshake PP1 Parallel Poll AH1 Acceptor Handshake DC1 Device Clear T5 Talker DT1 Device Trigger L3 Listener CO Controller SR1 Service Request E2 Electrical Interface RLI Remote Local Page 82 of 110 Interface 3 4 2 IEEE 488 Connections 12 1 OODODoDDOODODOoOoDO OOOOOQOQ0U0O0OO0O0O0 24 13 Figure 3 3 IEEE 488 Interface Pin Configuration Table 3 3 IEEE 488 Interface Connections Signal Na
34. ages may be present inside this instrument Do not open the case Refer servicing to qualified personnel HIGH VOLTAGES MAY BE PRESENT AT THE TERMINALS OF THIS INSTRUMENT WHENEVER HAZARDOUS VOLTAGES gt 45 V ARE 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 with bare conductors or bus bars WHEN WORKING WITH HIGH VOLTAGES POST WARNING SIGNS AND KEEP UNREQUIRED PERSONNEL SAFELY AWAY AN CAUTION AN DO NOT APPLY ANY VOLTAGES OR CURRENTS TO THE TERMINALS OF THIS INSTRUMENT IN EXCESS OF THE MAXIMUM LIMITS INDICATED ON THE FRONT PANEL OR THE OPERATING GUIDE LABEL Contents Warranty essa adios 7 Specifications id 9 ACCESSOrIES addition 11 Safety Precautions 35 220 sccetasesto won e ed e OE 15 Condensed Operating Instructions ooooooocnnococcononcnonononononononocononononnnnncnn ccoo 17 Installatiomand Power Ubica igs 17 Selecting Test CoOnditiONS oii scsccssssedeissaasasavanndentasceetandeseiadysnpseas nseea ee dret na dedo 18 A OS 24 Connection to Device Under Test occ koa knee na aida 30 Initiating TES A A E ii 30 Introduction Section 1 1 1 1 2 1 3 1 4 1 5 2 1 22 2 3 Unpacking Imspecti on ai alas 33 Product OVervie W scis2 tieta distended i 33 Front Panel Descnipuicn e tin ora een alain 34 Rear Panel Description ieee TE Seca ses 35 A A a 36
35. alculate the added L Q error Measuring Conditions Inductance 1mH Quality Factor 20 Measurement Frequency 10kHz DC Bias Current 1A Page 50 of 110 Operation Programming 1 Calculate Impedance ZL to obtain Inductance error LE ZL 2n x 10k x ImH 62 8 Check Tables Ez 0 Er 0 LE IZ Accuracy 1 Ez Ep LE Z Accuracy 1 0 0 LE Z Accuracy 1 LE Z Accuracy 2 Phase Angle 0E ZE 80 1 CEs eee OES eat QE 0 573 n 100 n 100 3 Quality Factor QE tanOE 1 Q3 01 x 401 OES Dr QE QE 5 1 Q tan E 41 20 x 01 2 3 8 Delay This function allows the user to program 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 a time delay before actually making measurements Such a delay allows time for switching transients or mechanical handling to settle 1 Delay Program Off A Up or Down arrow key to change delay time 1 Delay Program 10 00 ms 10 ms to 100s 1 Delay Program 100 000 sec Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Operation Programming Page 51 of 110 2 3 9 No to Average This function allows the user to program the number of measurements to average between 1 and 999 If the entered value is
36. alibration Connect Open Press START to continue Press STOP at anytime to exit Cal routine Leads open and positioned Fixture open nothing with spacing typical for inserted DUT being measured Figure 2 4 Open Circuit Configuration Kelvin Clip Lead Set or Test Fixture Page 64 of 110 Operation Programming Program the 1910 for OPEN as follows Press START to initiate C 1 9 F1 a IS Ve Open correction Indicates of record in Indicates index of frequency table which controls cal 0 for DC 1 14 for ac 1M FIAT 15 Indicates progression of Open correction the cal routine counts up Index of current range Index of voltage range NOTE During the open short process these numbers should be changing A flashing fail light during the open short process indicates an error has occurred Remove Open connect short Connect SHORT standard Press START to continue Leads shorted and clips Fixture shorted shorting positioned as shown bar inserted Figure 2 5 Short Circuit Configuration Kelvin Clip Lead Set or Test Fixture Operation Programming Page 65 of 110 Program the 1910 for SHORT as follows Press START to initiate C 1 9 Fi I5 V2 DC Short Correction Short correction Connect SHORT standard Press START to continue Press START to initiate C 1 9 F1 I5 V2 AC Short Correction Short correction Calibration Complete Press START to continue Press START unit returns to
37. alid cal state Contact factory Invalid prog state Contact factory Current bias invalid Compliance V exceeded Current bias invalid Current source shutdown Signal distorted DUT is nonlinear A D current input ovrrng A D voltage input ovrrng Unable to level applied voltage Instrument Error Messages FATAL UNABLE TO WRITE EEPROM CURRENT TEST STEP FATAL EEPROM CAL DATA CANNOT BE INITIALIZED FATAL EEPROM TEST DATA CANNOT BE INITIALIZED FATAL EEPROM MISC DATA CANNOT BE INITIALIZED EEPROM MISC CAL DATA CANNOT BE INITIALIZED FATAL INVALID MEAS STATE HANDLER RETURN DSP HOST CODE MISMATCH NEEDS DSP VERSION FIRMWARE CRC ERROR CONSULT FACTORY FATEAL UNABLE TO WRITE CALIBRATION DATA GENERAL INTERNAL ERROR CONSULT FACTORY Page 78 of 110 Operation Programming Section 3 Interface 3 1 General The 1910 Inductance Analyzer includes three interfaces standard with the unit the Remote I O RS 232 and IEEE 488 Connection for these are located on the instrument s rear panel and discussed in detail below 3 2 Remote I O The 1910 comes standard with an automatic component remote I O interface port available through a 37 pin DB type connector located on the rear panel of the instrument This port outputs signals to indicate a measurement in process and bin sorting judgements It also has inputs 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 t
38. am next 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 programmable test parameter Amplitude refer to paragraph 2 3 4 When leveling is set for On the instrument will adjust its output voltage to make the voltage across the DUT equal to the programmed test voltage This will not be possible in all cases because the source impedance and DUT impedance form a voltage divider A Up or Down arrow key Leveling Util to change leveling off Leveling Util On Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Page 74 of 110 Operation Programming 2 5 11 Cable Comp This function allows the operator to select the type connection made to the device under test a direct connection to the front panel No Cable 1 M Cable or 2 M Cable The 1910 is factory calibrated to compensate for the various lengths of test cables choosing the correct cable length is important to assure accurate measurements In addition to this an open short circuit should be conducted any time the cable length is changed refer to paragraph 2 5 1 A Up or Down arrow key Cable Comp Util to change Cable Compensation No Cable 1 or 2M Cable Comp Util 2 M Cable Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode
39. arrow to change median type UP A Median Util Single Measurement or Median of 3 Median of 3 measurements Distortion Press the RIGHT arrow to select distortion Distortion Util Right Not Tested Press the UP or DOWN arrow to change distortion type istorti Not Tested or Checked during UP Distortion Util A Checked during AC test AC Test Serial Number Press the RIGHT arrow to display instrument serial number A Serial Number Right gt 0126789 Press UTILITY to exit Utility Mode and return to Ready Mode Page 27 of 110 Connection to Device Under Test DUT Figure COI 1 illustrates the 1910 Inductance Analyzer connected to a device under test using the 4 BNC to 2 Kelvin Clip lead set QT P N 1700 03 1910 Inductance Analyzer uadTech 55 Bias On Remote Lockout UTILITY PROGRAM STOP START IL PL PH H OOM OMO dee a LL tour Hor LIB ta bal DUT 1700 03 CST a chassis Figure COI 1 Connection to DUT using 1700 03 Kelvin Leads Connection to the Device under Test IET Labs Cables Connection as labeled Connections with Connections with Connections with on 1920 front panel cables labeled cables color coded cables color coded PH or HS red red IH or HD PL or LS black white IL or LD Initiating Measurements 1 The instrument must be in the READY mode or displaying the results from a previous measurement before initiating
40. ary parameter NONE LS LP RS RP CS CPDFQZY P ESR GP XS BP VI DCV DCR DCI FREQuency Set test frequency in Hz nnn APPLV Set test voltage in V rms if AC n nnn BIAS Set bias current in A n nnn RANGe Select range AUTO HOLD nn MACracy Set measurement accuracy LOW MEDIUM HIGH LND NOTE When programmed for 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 count to average nnn PNOMinal Set the nominal value of primary meas MEAS n nnn BINning Set binning type NONE PCTdev ABSolute HIGh Set high limit in mA nn nnn PHIDEV Set primary bin high limit to n nnn n nn PLODEV Set primary bin low limit to n nnn n nn SNOMinal Set nominal value of secondary meas n nnn SHIDEV Set secondary parameter high limit n nnn SLODEV Set secondary parameter low limit n nnn LOADcorr Set load correction OFF ON MEAS PLOAD Set primary load correction n nnn SLOAD Set secondary load correction n nnn Interface Page 85 of 110 Table 3 4 Continued IEEE amp RS 232 Commands Command Function Parameter s SEQuence TEST Set current step to test number nn NONE SKIP SYSTEM LOCKout Lockout keypad from the remote OFF ON DISPlay Set display type DMEAS DDEV DPCT FRESult Format result type SCI ENG TRIGger Trigger type EXT INT SRCImp Set source impedance n 0 3 LEVELing Set voltage leveling OFF ON CABL
41. as the charge builds up If an AC voltage is applied an AC current appears to flow continuously because the polarity of the voltage is reversed at the frequency of the applied voltage The waveform of this current however is displaced in time from the applied voltage by 90 A measurement of the actual AC resistance of a capacitor How effective a capacitor may be in allowing AC to flow depends upon its capacitance and the frequency used XC 1 21 fC Dissipation factor is a measurement of the quality of a capacitor how well it dissipates charge The lower the Dj the better the capacitor Dissipation factor is equal to resistance divided by reactance Dy Rs Xs 1 Q tan 90 0 tan In AC circuits impedance is the AC resistance to the flow of current through a circuit when an AC voltage is applied across the terminals of that circuit Impedance is composed of real in phase with voltage and reactive out of phase by 90 components Z E I R jX Impedance resistance reactance Designated with a subscript S in equations and Figure 2 1 Designated with a subscript P in equations and Figure 2 1 Value inputted by operator The display will show deviation or deviation of the DUT from the Nominal Value The physical phenomenon in which insulation appears to absorb and retain an electrical charge slowly over time Apply a voltage to a capacitor for an extended period of time then quickly discharge it to zero v
42. condition occurs When set to Not tested distortion will not be detected during a measurement Distortion is dependent on programmed test conditions connection to the device device impedance and is indicated when the current or voltage on the DUT at frequencies other than the test frequency is more than 2 of the signal at the test frequency Distortion checking is generally the recommended test condition and is particularly important for high precision measurements where test leads could resonate with the device under test Distortion may be best unchecked in a noisy environment or if the test voltage is below 100mV A Up or Down y arrow key oe Util to change distortion ot tested Distortion Util Check during AC test Right gt arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Page 76 of 110 Operation Programming 2 5 15 Serial Number This function allows the operator to view the instrument serial number This serial number can also be returned when the unit is under remote control but there is no command for changing this number Serial Number 0104985 ULITITY key to exit and return to Ready mode 2 5 16 Software Version This function allows the operator to view version of software installed in the instrument Software Version V1 32 ULITITY key to exit and return to Ready mode 2 6 Error Messages Operator Help messages Error in calibration Watchdog timeou
43. cy accuracy a 7 Q 0 02 MER 0Q gt Basic Accuracy For DC High 0 20 Medium 0 25 Low amp Low No Display 0 5 311 0 3 R Accuracy ACCraco 1 R DC Resistance Rmax 400kQ Vv R R Max Due to the large time constants involved in measurements of high value inductors additional inaccuracies may result This will be indicated by reduced display resolution For Capacitors If DF gt 1 For Inductors if Q lt 10 2 Accuracy Accuracyv1 DF Accuracy Accuracy 1 5 Temperature Error doubles for every 10 C from 23 C Operation Programming Page 49 of 110 Additional Impedance Error Z with Current Bias Z Accuracy 1 Ez Ep Ez UNKNOWN impedance factor error Er Instrument frequency factor error If Q lt 10 multiply Z by 1 1 0 Unknown Impedance Factor Ez UNKNOWN Impedance Q 10 1 1kO 1kQ 100kQ Ez 5 log 1 Z 0 5 log Z 3 Instrument Frequency Factor Ep Frequency Range Hz 20 100Hz 100 kHz 1k 100kHz 100k 300kHz 300k 1MHz Er 3 1 0 1 3 Additional Impedance Error ZL due to inductance ZL 2nfL f measurement frequency L measured inductance Additional Phase Angle Error 0E Additional Quality Factor Error QE tanOE 1 Q3 ORS 1 Q tan E When Q lt 10 multiply QE by 1 1 Q Example of Additional Error Calculation C
44. d A Up or Down y arrow key to change the first digit 0 thru 9 Right gt arrow key to move to next digit A Up or Down y arrow key to change digit Right P arrow key to exit last digit Keypad Lockout 000000 Keypad Lockout 800000 Keypad Lockout 800000 digits 2 thru 6 Keypad Lockout 888888 Keypad Lockout On With Test Number Operation Programming Util Util Util Util Util To unlock Password Press Utility key A Up or Down w arrow key to unlock password Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Operation Programming Keypad Lockout Util On OR Keypad Lockout Util On With Test Number Keypad Lockout Util Enter Password to Unlock Right P arrow key to enter password A Up or Down y arrow key to change the first digit 0 thru 9 Right P arrow key to move to next digit A Up or Down w arrow key to change digit Right gt arrow key to exit last digit Keypad Lockout 000000 Keypad Lockout 800000 Keypad Lockout 800000 digits 2 thru 6 Keypad Lockout 888888 Keypad Lockout Off Page 69 of 110 Util Util Util Util Util 2 5 3 Display Type Measured Parameters Display is the measured values of both the primary and secondary displayed with decimal point and units Deviation from Nominal Display is the difference in measured value above or below a programmed
45. d 2 3 15 With load correction turned On these corrections are applied to ongoing measurements and the final corrected value displayed A Up or Down y arrow key LoadCorrect START get to change load Correction Off LoadCorrect START get On Press START to determine load corrections from measurement of the DUT based on primary and secondary nominal values Right arrow key to next parameter and observe load corrections or Typical display during PROGRAM key to exit Program measurement Mode and return to Ready mode Page 58 of 110 Operation Programming 2 3 14 Primary Load Correction The value shown is the measured load correction for the primary parameter which can be further altered by the operator as shown below Primary Load Correction Load Correction Measured minus the Primary Nominal value For example if the load correction measured is 148 000 nH para 2 3 13 and the primary nominal is 140 000 nH the primary load correction shown here would be 8 0000 nH A Up or Down y arrow key 1 Pri LoadCorr Program to change load Correction 8 0000 nH Right arrow 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 parameter which can be further altered by the operator as shown below Secondary Load Correction Load Correction Measured minus the Secondary Nominal valu
46. details on enabling the SRQ Before starting a remote FULL calibration the reference data for the cal kit must be stored in the instrument These data are used to calculate the 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 memory and it is not necessary to enter them again unless another cal kit is to be used They are the last values returned in response to a DATA query There is only one set of cal kit values However there are three copies of the entire set of calibration coefficients corresponding to the three cable compensation choices available in the UTILITY menu This utility setting determines which set of coefficients will be modified by the calibration Command STANDARD Short version STAN Syntax STANDARD lt ROI gt lt Value gt where lt ROI gt is a single floating point number in which the 100s digit is the 1 based index of the resistor to edit 1 5 ohm 5 95K the 10s digit is the option as follows 0 Edit count of data points for this resistor legal values are 2 3 4 1 Edit frequency 2 Edit R value 3 Edit Q value in ppm Page 90 of 110 Interface and the Is digit is the 1 based index of the record to edit allowed values 1 thru 4 not used when option is O but still must be a number 1 4 All 4 records can be edited for each resistor even if the count f
47. e For example if the load correction measured is a Q of 10 5670 para 2 3 13 and the secondary nominal is 10 0000 the secondary load correction shown here would be 0 5670 A Up or Down y arrow key 1 SecLoadCorr Program to change load correction 0 5670 Right arrow key or PROGRAM key to exit Program Mode and return to Ready mode Operation Programming Page 59 of 110 2 4 Program Sequence Test S1 S9 Sequence tests S1 through S9 are selected by pressing Up or Down arrow key when instrument status is in the Ready or power up mode 1 Ls Rs 1 0000 KHz 1 000V NoBias Auto High Sequence Test Instrument User tests to be status performed in sequence The above display is typical showing S1 is the sequence test setup the sequence programmed to perform user tests 1 3 5 7 9 and 10 in succession and Ready the instrument status To select any other sequence test number simply press the Up or Down arrow keys while in the Ready state Programming A Sequence Test 1 Ready 246 8 10 12 To enter programming mode S1 1 Program Press PROGRAM Test 2 Sequence 1 Test 1 A Up or Down w arrow key S1 1 Program Tests 1 30 skip or to change test for test 1 Test 3 none Sequence 1 Test 2 Right p arrow key to select S1 2 Program test 2 in the sequence Test 4 Up or Down arrow key S122 Program Tests 1 30 skip or to change test Ffor test 2 Test 5 none Sequence 1 Test 3 Right P arrow key to select S1 3 Pro
48. e only serial device such as a serial printer When set to Disabled the I O port is non functional and the IEEE 488 port is functional A Up or Down y arrowkey RS232 Baud Rate Util to change baud rate 9600 RS232 Baud Rate Util 19200 9600 AutoReport 19200 AutoReport RS232 Baud Rate Util Disabled Right gt arrow key to program next Utility function or UTILITY key to exit and return to Ready mode 2 5 8 TEEE 488 Address This function allows the operator to select the IEEE 488 address selections possible are 1 thru 16 The RS 232 interface must be set to Disable for the IEEE 488 interface to function A Up or Down arrow key IEEE 488 Address Util to change IEEE 488 address 1 1 thru 16 IEEE 488 Address Util 16 Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Operation Programming Page 73 of 110 2 5 9 Clear All Tests This selection allows the operator to clear all stored test setups in instrument memory 1 thru 30 for single tests or S1 thru S10 for sequential tests After this operation all tests are programmed to defaults coded by instrument software which is generally as follows Primary Ls Range Automatic Secondary Rs Delay 0 Frequency I1kHz No to Average 1 Amplitude 1V Bin Type OFF Accuracy High Load Corr OFF A Up or Down arrow key Clear All Tests Util to select clear all tests No Clear All Tests Util Yes Right gt arrow key to progr
49. e it is necessary to send SAVE SAVE to cause them to be written to nonvolatile memory Unlock the front panel by sending SYST LOCK OFF Page 92 of 110 Interface The prompts for a full calibration are as follows Connect VCal box SW OFF send CAL MEAS to continue Enter RMS volts Min 0 200000 Max 2 000000 Enter RMS volts Min 0 020000 Max 0 200000 Set VCal box switch ON send CAL MEAS to continue Enter RMS Volts Min 0 200000 Max 0 800000 Set VCal box switch OFF send CAL MEAS to continue Enter DC volts Min 0 200000 Max 2 000000 Enter negative DC volts Min 0 200000 Max 2 000000 Enter DC volts Min 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 000000 Connect OPEN standard send CAL MEAS to continue Connect SHORT standard send CAL MEAS to continue Connect SHORT standard send CAL MEAS to continue Connect 5 0ohm standard send CAL MEAS to continue Connect 25ohm standard send CAL MEAS to continue Connect 374ohm standard send CAL MEAS to continue Connect 5 9Kohm standard send CAL MEAS to continue Connect 95Kohm standard send CAL MEAS to continue Calibration complete send CAL MEAS to continue meas lock off Interface Page 93 of 110 3 4 5 Formats IEEE 488 2 enable remote programming of all instrument functions measurement condition
50. e 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 ls 1 meas sec 0 1 Low No Display 25 ms 40 meas sec 0 5 NOTE Measurement times may be longer depending on frequency and other test conditions One complete cycle of stimulus voltage is required for measurement 1 Accuracy Program A Up or Down arrow key Low 40ms test to change accuracy 1 Accuracy Program Medium 100 ms test 1 Accuracy Program High 1 second test 1 Accuracy Program Low No Display 25ms Right p arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Page 48 of 110 Operation Programming The 1910 has three basic accuracies Basic Accuracy For AC High 0 10 Medium 0 25 Low amp Low No Display 0 5 The actual accuracy at a given test condition is defined by the following formula 3 Z Accuracy ACC pasic L ja 20 A a E NV Freq 200k Dis Z V Programmed test voltage Vsource Freq Programmed test frequency Note For frequencies above 100kHz Vpur must be at IZI DUT impedance least 20mV That is Z Vour V source DUT DUT R source Z Zmax is 4 10 for Frequency less than 10kHz 2 5 10 for Frequency less than 250kHz 1 5 10 for Frequency above 250kHz Accuracy DF Freq ACCURACY 100 50 50000 Accuracy Accuracy 2 Accura
51. e UP or DOWN arrow to enter test frequency parameter UP A Page 16 of 110 1 Frequency Program 1 0000 kHz 20 Hz 1 0 MHz 15 steps or 20 Hz 1 0 MHz continuous Refer to paragraph 2 3 3 Programming continued Amplitude Press the RIGHT arrow to select amplitude of voltage Right P A Pal es Program Press the UP or DOWN arrow to change amplitude value 1 Amplitude Program UP A 1 0000 V Bias Current Press the RIGHT arrow to select bias current Right J gt EN Bis Current Program 20 00mV 1 0000V in 5mV steps Not shown if Primary Parameter is set to DC Press the UP or DOWN arrow to change bias current value UP A 1 Bias Current Program Off Measure Range Off 1 00mA 1 000A in 1mA steps Press the RIGHT arrow to select measurement range Right p 1 Range Select Program Lock 200mA any F 1 0V Press the UP or DOWN arrow to change measurement range value UP A 1 Range Select Program Lock 200mA any F 1 0V Accuracy Auto Hold or 27 individual ranges 45 for DC refer to paragraph 2 3 6 Press the RIGHT arrow to select measurement accuracy Right gt 1 Accuracy Program Low 40ms test Press the UP or DOWN arrow to change measurement accuracy value UP A 1 Accuracy Program High 1 second test High Medium Low or No Display Page 17 of 110 Programming continued Dela
52. e current mode The final manipulation of the excitation signal is in block E bias control The 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 to the IH line described above contains three other coaxial connections to the DUT PH and PL are the connections across the DUT that are used to measure the voltage across the DUT IL is the connection that sinks the current sourced by IH The current into IL is essentially exactly that in the DUT the PH and PL connections are to high impedance circuitry and draw very little current Any departure from ideal behavior is calibrated out digitally during the calibration process Block G is the circuitry which senses current and voltage and amplifies these signals for later processing These signals are converted into digital streams of readings in block H In addition to the two analog signals from the voltage and current detectors block H also has a sampling pulse signal that synchronizes the digitization process with the sine wave signal The sampling pulse is generated in block C The digital stream of readings is fed into block I where they are combined to produce complex impedance which is communicated to the embedded computer Theory Page 99 of 110 Connections to Device Under Test F eo Ed
53. e stored in the 1910 in non volatile memory For both Ex and Es a real and imaginary in phase and quadrature component are computed mathematically from the individual sample measurements The real and imaginary components of Ex and Es are with respect to a reference of arbitrary phase so that by themselves they are meaningless Any differences in the voltage and current detection and measurement process as well as non idealities in the sampling and digitization process are corrected via software using calibration data The real and imaginary components of Ex Ex and Exi are combined with the real and imaginary components of Es Es and Es and the known characteristics of the reference resistor to determine the apparent complex impedance of the DUT using complex arithmetic Further calculations are made to remove the characteristics of the test fixture stray capacitance and conductance and series resistance and inductance if simple SHORT and OPEN calibration measurements have been made by the operator These corrections are stored in non volatile memory in the 1910 and are retained during power down and power up The detection and excitation circuitry is configured for each measurement by an embedded computer For the excitation circuitry this includes frequency of excitation DC bias current and excitation level Frequency is varied from 20Hz to 1MHz Excitation level is between 20mV and 1V open circuit Theory Page 97 of 110 For
54. ecomp Set cable compensation n 0 3 DISCrete Allows continuous frequencies OFF discrete ON cont DISTortion Enable test for distorted AC OFF ON MEDIAN 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 single test s parameters nn SEQuence View the sequence n The format of the returned data is as follows Step 1 Test lt tab nn or Fn or skip or none gt lt CR gt Step 2 Test lt tab nn or Fn or skip or none gt lt CR gt Continued through Step 6 UTILity View the utilities programmed LOCKout View the lockout state DATA Returns the non frequency dependent calibration data DATA2N Returns the frequency dependent calibration data for cal frequency N DCALibration Returns calibration date CAL Refer to paragaraph 3 4 4 Remote Calibration STOP Stops a measurement Page 86 of 110 Interface Table 3 4 Continued IEEE amp RS 232 Commands Command Function Parameter s MEASure Triggers a measurement of the selected type If sequence is enabled this command will trigger those type of measurements also The result type is set by the display type parameter M Triggers a measurement of the selected type and automatically returns the answer after the measurement is complete This command is a faster way to implement the sequence MEAS WAIT FETCH If sequence is enabled this comma
55. econdary bin assignment will be Bin 1 for a pass and Bin 11 for a fail low and Bin 12 for a fail high Bin limits for the primary parameter can be entered in terms of absolute 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 tolerance around a single nominal value with the lower numbered bins narrower than the higher numbered ones Nested limits for five bins are illustrated below note that limits do not have to be symmetrical as shown for bin 5 which is 20 and 30 When entering limits in percent both can be positive both can be negative or one can be positive and one can be negative but the Hi limit must be more positive than the Lo limit Bin 5 Bin 4 Fail y Fail Bin Bin 3 Bin Bin 2 Bin 1 30 10 5 2 1 1 2 5 10 20 100 00 kQ E Nominal Value Sequential limits are a natural choice for sorting oy absolute value Sequential limits for four bins are illustrated below It should be noted that the bins do not necessarily have to be adjacent Depending on the specified limits for each they can be overlapping adjacent or even isolated gaps from each other Any overlap is assigned to the lower numbered bin and a gap would be assigned to the overall fail bin Page 54 of 110 Operation Programming Fail Fail Bin Bin Bin 3 Bin 2 Bin 1 Bin 3 75 00 kQ 85 00 kQ 95 00 kQ 10
56. econdary load correction Right gt 1 Sec LoadCorr Program 50 000 Press the UP or DOWN arrow to change secondary load correction value UP A 1 Sec LoadCorr Program 1 100 Range of values and units depend on primary parameter selected at first step Press the RIGHT arrow to return display to Ready Mode Right gt 1 Ls Rs 1 0000 kHz 1 0000V No Bias Auto High Ready Mode showing first parameter Page 21 of 110 Programming Tester Utility Functions Tester functions are accessed through the UTILITY mode Cal with 1M Cable Press UTILITY at any time to UTILITY f l l Cal Due 1 10 2001 exit programming mode Perform Calibration Zeroing Press the RIGHT arrow to skip Open Short and go to Keypad Lockout with indicated cable length gt Cal with 1M Cable Indicates due date of next Right Cal Due 1 10 2001 annual calibration Press the UP or DOWN arrow to select Open Short Calibration type Quick Short Cal Quick Open Cal UP A 1 Prim Param Program Quick Short Open Cal Short Cal Ls Open Cal Short Open Full Cal NOTE Quick Cal is not an option 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 To connect Test Leads refer to Connection to Device Under Test paragraph that follows Right p Connect OPEN standard Press STOP at any time to Press START to continue e
57. ect the 1910 Inductance Analyzer instrument for any damage If the instrument appears damaged or fails to meet specifications notify IET Labs refer to instruction manual front cover or its local representative Retain the shipping carton and packing material for future use such as returning for re calibration or service 1 2 Product Overview The 1910 Inductance Analyzer is designed to perform inductance and a wide variety of impedance measurements on coils wire wound devices and other electronic components The 1910 covers a frequency range from 20Hz to 1 0MHz with a basic accuracy of 0 1 The user can select measurement and display two impedance 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 programmable from 20 mV to 1 V and DC bias current programmable from 0 to 1 A An external bias current up to 20 A can also be applied to the device under test when using the IET Labs Model 1320 Bias Current Source The 1910 Inductance Analyzer also provides the capability to run up to six different tests in sequence each with uniquely programmed test conditions and displayed parameters For pass fail testing or sorting of parts the instrument provides 14 programmable bins For fast component handling or automated system applications the 1910 comes standard with a handler VO port RS 232 and IEEE 488 interfaces
58. f the second part of the prompt is of the form Min n nnn Max m mmm make the requested measurement and enter the value which will be a voltage measurement if the measurement is not in the specified range something is wrong The command in this case is of the form CAL n nnn No units are sent and the value must be in fixed point format If a serious mistake is made when connecting a DUT such as leaving the fixture OPEN after being prompted for a SHORT the calibration MAY fail due to an A D overload If the message A D current input ovrrng is displayed or returned as a prompt the calibration must be aborted by sending STOP There is no way to back up and continue from the last successful part of the calibration 1t must be restarted from the beginning NOTE The 19xx calibration procedure is designed to allow calibration with a wide range of cables and fixtures There is no specification for how big a mistake is required to cause the calibration to fail If the FAIL light on the front panel flashes during calibration the setup should be rechecked and the calibration repeated When a calibration completes normally the new data are automatically saved to nonvolatile memory It is not necessary to send the SAVE SAVE sequence to cause them to be updated If the cal kit data are updated during the calibration the new values will be saved only after a successful calibration If the cal kit data are updated at any other tim
59. gram test 3 in the sequence Test 6 A Up or Down w arrow key S1 3 Program Tests 1 30 skip or To change test for test 3 Test 7 none Page 60 of 110 Operation Programming Sequence 1 Test 4 Right arrow key to select S1 4 Program test 4 in the sequence Test 8 A Up or Down arrow key S1 4 Program Tests 1 30 skip or to change test for test 4 Test 9 none Sequence 1 Test 5 Right P arrow key to select S1 5 Program test 5 in the sequence Test 10 A Up or Down Y arrow key S125 Program Tests 1 30 skip or to change test for test 5 Test 11 none Sequence 1 Test 6 Right P arrow key to select S1 6 Program test 6 in the sequence Test 12 A Up or Down y arrow key S126 Program Tests 1 30 skip or to change test for test 6 Test 13 none PROGRAM key to exit Program Mode and return to Ready mode Binning Function During Sequence Tests During a sequence test each single step user test within the sequence 1 to 6 will be assigned to a bin according to the 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 the results of a sequence is reviewed on the display using the UP DOWN arrow or output remotely with a FETCH command The bin assignment output through the Remote I O output will be somewhat different The bin outputs will not be asserted until all tes
60. hat signal is active and let float when inactive Each external line must be powered by a positive voltage between 5 and 24V max with sufficient impedance pull up resistors implemented externally to limit the active signal logic low current to 20mA max The input signals are also active low and also requires a positive external voltage which must pull the signal down below 0 4V but not negative For the inactive state logic high the external circuit must allow the signal line with its internal 3 3kohms to float above 2 5V but not above 5V 000 000 OO O O70 00 O10 000000 oooo0oo0oo0o000000000000 20 37 Figure 3 1 RS232 Remote I O Pin Configuration Interface Page 79 of 110 Table 3 1 Remote I O Interface Connections Signal Name _ Pin Number Function Outputs Busy 1 Measurement in process Bin 1 2 Primary Pass or Secondary Pass if binning is enabled and all Primary bin limits are set to Off or All steps in a Sequence test are Pass Bin 2 3 Primary Pass or step 1 in a Sequence test Fails Bin 3 4 Primary Pass or step 2 in a Sequence test Fails Bin 4 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 Sequence test Fails Bin 8 9 Primary Pass Bin 9 10 Primary Pass Bin 10 11 Primary Pass Bin 11 12 Primary Pass Secondary Fail Low Bin 12 13 Primary Pass Secondary Fail H
61. igh Bin 13 14 Primary Fail Secondary Pass Bin 14 15 Primary Fail Secondary Fail EOT 16 End of Test goes low at end of measurement Gnd 20 35 Signal ground Inputs Start 17 Starts the measurement Stop 18 Stops the measurement in process Page 80 of 110 Interface 3 3 RS 232 Interface An RS232 serial port interface is available on the 1910 through a 9 pin DIN connector on the rear panel of the instrument The RS232 standard defines electrical specifications for the transmission of bit serial information The use of the RS232 port requires three lines receive data transmit data and signal ground Refer to Figure 3 3 for null modem cable configuration to the standard db9 or db25 connector Refer to Table 3 4 for the command 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 232 interface is programmed through the UTILITY menu refer to paragraph 2 5 7 Serial port parameters are comprised of 8 data bits 1 stop bit and no parity 1 5 O 0 0 00 OOOO 6 9 Figure 3 2 RS232 Interface Pin Configuration Table 3 2 RS232 Interface Connections Signal Name Pin Number Function Inputs DCD 1 Data Carrier Detect DSR 6 Data Set Ready RXD 2 Receive Data CTS 8 Clear to Send RI 9 Ring Indicator Outputs RTS 7 Request to Send TXD 3 Transmit Data DTR 4 Data Terminal Ready GND 5 Signal Ground Interf
62. instrument is only used with these cables or other approved international 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 electronic circuits The surrounding environment should also be free from excessive vibration The instrument should be positioned with consideration for ample air flow to the rear panel ventilation holes an open space of at least 75mm 3 inches is recommended behind the rear panel Do not expose the instrument to direct sunlight extreme temperature or humidity variations or corrosive chemicals When the 1910 is used in a rack installation using the IET Labs 2000 16 Rack Mount Flanges make sure the unit is secured using rack cabinet mounting rails and not secured solely by these front panel flanges Page 36 of 110 Introduction Section 2 Operation Programming 2 1 Terms and Conventions Multiple 1000000000000000 1000000000000 1000000000 1000000 1000 001 000001 000000001 000000000001 000000000000001 Frequency back Ground Inductance Inductive Reactance Quality Factor Operation Programming Table 2 1 Measurement Unit Prefixes Scientific Engineering Symbol 1015 Peta P 1012 Tera T 102 Giga G 106 Mega M 103 Kilo k 10 3 milli m 10 6 micro u 10 9 nano n 10 12 pico p 10 15 femto f The rate at which current or voltage reverses polar
63. is entered for Lock Password only the currently selected test conditions along with the instrument START and STOP functions are active This prevents an operator from modifying test conditions When a password is entered for Lock Cycle Tests the test number selection 1 thru 30 is active using the Up or Down arrow keys allowing selection of any of the stored setups however 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 event of an unintentional lockout the password override is 242671 To Enable Lockout A Up or Down w arrow key Keypad Lockout Util to change lockout function Off Keypad Lockout Util Lock Password gt Operation Programming Right gt arrow key to enter password A Up or Down y arrow key to change the first digit 0 thru 9 Right gt arrow key to move to next digit A Up or Down y arrow key to change digit Right P arrow key to exit last digit UTILITY key to exit and Return to Ready mode Keypad Lockout 000000 Keypad Lockout 800000 Keypad Lockout 800000 digits 2 thru 6 Keypad Lockout 888888 Keypad Lockout On Page 67 of 110 Util Util Util Util Util UTILITY key to exit and return to Ready mode Page 68 of 110 Keypad Lockout Util Lock Cycle Tests Passwd gt Right gt arrow key to enter passwor
64. isposal Do not dispose of electrical appliances as unsorted municipal waste use separate collection facilities Contact your local government for information regarding the collection systems available If electrical appliances are disposed of in landfills or dumps hazardous substances can leak into the groundwater and get into the food chain damaging your health and well being When Ld replacing old appliances with new one the retailer is legally obligated to take back your old appliances for disposal Page 14 of 110 Condensed Operating Instructions Start Up The 1910 Inductance Analyzer can be operated from a power source between 90 and 250 VAC at a power line frequency of 50 to 60 Hz The unit is shipped with a 2 5A fuse in place for 90 to 250 V operation Refer to paragraph 1 5 3 for fuse location and or replacement The 1910 Inductance Analyzer is designed to be operated with its chassis connected to earth ground a 3 prong power cored is provided with the unit 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 to the 1 position to apply power The power can be switched off at any time by pressing the this front panel switch to the 0 position Power Up Press power switch to On 1 Initializin g Unit initializes through Steps 1 to 11 2 IET Labs i software Model 1910 V1 4
65. ity and then again completing a Full cycle measured in Hertz Hz or cycles second AC Line Frequency 50 60 Hz The base reference from which voltages are measured nominally the same potential as the earth Also the side of a circuit that is at the same potential as the base reference Inductance is the property of a coil to oppose any change in current through it The inductance of a coil varies as the number of turns squared N2 If the turns are stretched out the field intensity will be less and the inductance will be less The larger the radius or diameter of the coil the longer the wire used and the greater the inductance A measure of how much the counter electro magnetic force EMF of the coil will oppose current variations The amount of reactance is directly proportional to the frequency of the current variation XL 2nfL Quality factor is a measurement of the quality of an inductor how tight the wire is wrapped wound The higher the Q the better the inductor Q is equal to reactance divided by resistance Q XS RS Page 37 of 110 Capacitance Capacitive Reactance Dissipation Factor Impedance Series Circuit Parallel Circuit Nominal Value Dielectric Absorption Page 38 of 110 The ratio of charge on either plate of a capacitor to the potential difference voltage across the plates When a voltage is applied current flows immediately at a high rate then exponentially decays toward zero
66. jX or polar form as magnitude and phase angle IZI 40 Figure 2 3a shows the mathematical relationship between R X IZI and 0 for both inductive and capacitive devices In some cases it becomes mathematically practical to represent impedance using the reciprocal where 1 IZI IYI G jB where IYI represents admittance G conductance and B susceptance This mathematical relationship is shown in Figure 2 3b for inductive and capacitive devices j 1 Cs Impedance Capacitive Inductive Figure 2 3a Phase Diagrams of Impedances jBX jBX Admittance i Capacitive Inductive Figure 2 3b Phase Diagrams of Admittances Page 42 of 110 Operation Programming Quality factor Q is used as a measure of a reactance s purity how close it is to being a pure reactance 1 e no resistance and defined as the ratio of the energy stored in a device to the energy dissipated by the device Q is dimensionless and is expressed as Q X R B G From Figure 2 3 one can see that Q is the tangent of the angle 8 Q is commonly applied to inductors and for capacitors the term generally used to express purity is Dissipation Factor D which is the reciprocal of Q 2 3 2 Secondary Parameter not shown if Primary Parameter 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 is determined by it F
67. ltage of 10V i e I times R must be less than 10 volts When selected for Off no bias current is applied to the device under test when programmed for a bias current 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 Handler mode Refer to the 1320 instruction manual Connect the 1910 input BNC s 4 to the 1320 FROM L METER BNC s 4 using BNC to BNC cable Connect 1910 rear panel REMOTE I O to the 1320 HANDLER INTERFACE using a 1320 07 interconnect cable 1 Bias Current Program Off A Up or Down arrow key to change bias current 1 Bias Current Program 1 00 mA 1mAto1A 1 Bias Current Program 1 0000 A Operation Programming Page 45 of 110 Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode 2 3 6 Range Select This function allows the user to manually select a measurement range There are 27 current voltage range combinations 45 for DC but the test frequency will determine which ranges are selectable To eliminate operator errors in range setting and ensure specified instrument accuracy it is generally best to set the range for Auto When Auto is selected the instrument automatically selects the optimum range for the impedance being measured at the selected test voltage and frequency Range Hold
68. me Pin Number Function DAV 6 Low state Data is Available and valid on DIO1 through DIOS NRFD 7 Low state At least one listener on the bus is Not ready for Data NDAC 8 Low state At least one listener on the bus is Not Accepting Data ATN 11 Attention specifies 1 of 2 uses for the DIO1 through DIOS lines Low state Controller command messages High state Data 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 controller need for attention in the midst of the current sequence of events REN 17 Remote Enable Low state enables each device to enter remote mode when addressed to listen High state all devices revert to local control EOI 5 End of Identify if ATN is in high state then low state of EOI indicates end of a multiple byte data transfer sequence If ATN is in low state then low state of EOI activates a parallel poll DIO1 1 The 8 line data bus which conveys interface DI02 2 messages ATN low state or device dependent Interface Page 83 of 110 Table 3 3 Continued IEEE 488 Interface Connections Signal Name Pin Number Function DI03 3 messages ATN high state such as remote DI04 4 control commands from the controller or from a DIOS 13 talker device DIO6 14 DIO7 15 DIO8 16 3 4 3 TEEE 488 and RS 232 Commands NOTE Refer to http w
69. nce a year using this outline procedure Instrument should be warmed up for a minimum of 15 minutes prior to verification Verification should be performed under the following conditions Temperature equal to 23 C 1 2 C and Relative Humidity RH between 35 and 55 Service amp Calibration Page 105 of 110 Recommended standards are listed below All standards should be traceable to a National Laboratory such as N I S T with calibrated values for primary and secondary parameters at the required test frequencies IET Labs s verification conforms to ANSI Z540 and IET Labs recommends that the calibrated values for the primary and secondary standards have an uncertainty 4 times better than the primary and secondary accuracy specified in the Verification Data Sheet If the calibrated values for the standards used do not have an uncertainty of 4 times better than the specified accuracy of the 1910 the uncertainty of the standard should be added to the specified accuracy of the 1910 For example if the calibrated value of the 500mQ standard is 495 0mQ 1 at 1000Hz the expected reading on the 1910 would be 495 0 mQ 1 327 1 for the standard accuracy 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 formulas in section 2 3 7 of this manual Measurement Standards Inductance Standards 4 Terminal
70. nd will trigger those type of measurements also The result type is set by the display type utility 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 ohms degrees and micro symbols are replaced by ohm deg or u Each group of one or more spaces is replaced with one tab character ASCII 9 Each line of the display is followed by CRLF For a sequence test the results of each test which has been performed are reported If TRIGGER is set for INTERNAL the results of the last measurement are reported For a sequence test results from the later steps in the sequence may have been measured on the previous pass through the sequence When accuracy is selected to LOW NO DISPLAY there is no choice of display format and the data will be returned as follows Interface Page 87 of 110 Table 3 4 Continued IEEE amp RS 232 Commands Command Function Parameter s If the secondary parameter is set to NONE the format will be n nnnnEmmm lt space gt lt space gt If the secondary parameters is set to anything other than NONE the format will be n nnnnEmmms lt space gt n nnnnEmmm lt space gt If the measurement is invalid for some reason typically an A D overrange because normally the range will be locked to shorten the cycle time the return format will be No lt tab gt Dat
71. ndary HIGH limit value Right gt 1 Sec HiDev 1 0000 Program Not shown if Primary Parameter is set to Auto or Binning is set to Off for all bins Press the UP or DOWN arrow to change secondary HIGH limit value UP A 1 Sec HiDev 12 000 Program Off or range of value and units dependent on the secondary parameter Press the RIGHT arrow to select secondary LOW limit value Right gt 1 Sec LoLim 1 0000 Program Press the RIGHT arrow to change secondary LOW limit value UP A Page 20 of 110 1 Bin1LoLim 8 0000 Program Off or range of value and units dependent on the secondary parameter Programming continued Load Correction Press the RIGHT arrow to select load correction Right LoadCorrect START GET Off Not shown if Primary parameter is set to Automatic Press the UP or DOWN arrow to change load correction value UP A LoadCorrect START GET Measure Off On Press START to measure Load Correction based on primary and secondary nominals with device connected OR Press the RIGHT arrow to select primary load correction Right gt 1 Pri Load Corr Program 8 0000 mH Press the UP or DOWN arrow to change primary load correction value UP A 1 Pri LoadCorr Program 1 0000 mH range of values and units that depend on primary parameter Press the RIGHT arrow to select s
72. ne technique for determining the approximate nominal values or starting point is to first measure the DUT and then fine tune as indicated below The units for the nominal value Q mH uF etc are determined by operator selection of the Primary Parameter A Up or Down y arrow key Pri Nominal START get to change nominal value 1 0000 nH or With DUT comnected press START to determine approximate nominal value Pri Nominal START get from measurement of DUT 100 000 H and then Up or Down arrow key to fine tune Pri Nominal START get 158 500 uH Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Operation Programming Page 53 of 110 2 3 11 Bin Type A group of similar components can be measured and categorized according to operator programmed limits For example the 1910 can be used to sort a group of nominally valued 100 kQ resistors into assigned bins of 1 2 5 etc around a nominal value or sorted by absolute limits which are independent of any nominal value The 1910 provides sorting capability into 14 bins 10 pass and 4 fail These are assigned as follows Bins 1 thru 10 Primary pass secondary pass if limit is entered Bin 11 Primary pass secondary fail low Bin 12 Primary pass secondary fail high Bin 13 Primary fail secondary pass Bin 14 Primary fail secondary fail If no limit is entered for the primary parameter but one is entered for the s
73. nominal value for the primary and secondary parameters Refer to paragraph 2 3 10 programming the primary nominal and paragraph 2 3 12 programming the secondary display Deviation from Nominal Display is the measurement in terms of a percent difference above or below a programmed nominal value for the primary and secondary parameters Refer to paragraph 2 3 10 programming the primary nominal and paragraph 2 3 12 programming the secondary nominal A Up or Down y aow key Display Type Util to change display type Measured Parameters Display Type Util Dev from Nominal Display Type Util Dev from Nominal 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 for these three selections 1 Ls 158 460 uH 1 dev Ls 158 460 uH 1 dev Ls 1 10 Bin 1 Q 2 4890 Bin 1 Q 2 4890 Bin 1 Q 0 25 Measured Parameters Deviation from Nominal Deviation from Nominal NOTE It should be noted that if the parameter names are ever displayed as lower case i e ls instead of Ls and df instead of DF etc it implies that the instrument does not have the proper calibration data stored for the cable compensation length being used 1 2 meters or no cable To put this another way the instrument is likely lacking some calibration data and is using default information rather than real calibration data Page 70 of 110 Operation P
74. nos A O ds octets eared Shae eed 5 4 1 Start up Diagnostics ceeccessceceececeeeeecseeeeceteeeenaeees Page 3 of 110 Page 4 of 110 Warranty IET Labs warrants that Products are free from defects in material and workmanship and when properly used will perform in accordance with IET Labs s applicable published specifications If within one 1 year after original shipment it is found not to meet this standard it will be repaired or at the option of IET Labs replaced at no charge when returned to a IET Labs service facility 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 of such damages This warranty is in lieu of all other warranties expressed or implied including but not limited to any implied warranty or merchantability or fitness for a particular purpose SERVICE POLICY IET Labs policy is to maintain product repair capability for a period of at least five 5 years after original shipment and to make this capability available at the then prevailing schedule of charges Page 5 of 110 Page 6 of 110 Measure Parameters Specifications Parameter Range Basic Accuracy Low Medium High Ls Lp 0 001nH to 99 999H 0 5 0 25 0 1 Cs Cp 0 01pF to 9 9999F 0 5 0 25 0 1 D 00001 to 99 999 0 005 0 0025 0 001 Q 00000 to 9999 9 0 005 0 0025 0 00
75. ns are as follows Keypad Lockout Off Clear All Tests No Display Type Measured Parameters Leveling Off Numeric Format Engineering Cable Compensation 1M Cable Trigger Source External Frequency Edit Type Continuous Source Impedance 25 ohms Median Single Meas RS 232 Baud Rate 9600 Distortion Not tested TEEE 488 Address 3 2 5 1 Perform Calibration This selection indicates the instruments expected calibration date and can be used to enter an open short routine or to perform instrument calibration The open short or zeroing process automatically measures stray parameters and retains the data which are used to correct measurements so that the results represent parameters of the DUT alone without test lead or fixture effects The cal routines and when they should be used are discussed in more detail below The Quick cal routines can be performed much faster but are only applicable to the single test in which they are performed 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 procedures Parameter Selections Quick Short Cal Short zeroing at the currently programmed frequency only used if measurements are to be low impedance Quick Open Cal Open zeroing at the currently programmed frequency only used if measurements are to be high impedance Quick Short Open Cal Both shor
76. o 1 MHz 1 Frequency Program 1 0000 MHz Right arrow key to program next parameter 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 programmed voltage is maintained at the instrument terminals with the terminals open but not necessarily at the DUT The actual voltage across the DUT is never more than the programmed voltage and depends on the DUT impedance and source resistance of the 1910 which can be 5Q 250 50Q or 1000 Refer to Utility functions paragraph 2 5 6 for information on the source impedance The instrument source resistance must be taken into consideration especially when measuring low values of impedance low inductance or high capacitance For example if the programmed amplitude voltage is 1V the source resistance set for 50Q and the impedance of the unknown DUT 50Q the voltage across the DUT is not 1V but rather 0 5V Page 44 of 110 Operation Programming 1 Amplitude Program A Up or Down arrow key to change voltage 1 0000 V 2 Amplitude Program 1 00 mV 1mVto1V 1 Amplitude Program 1 0000 V Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode 2 3 5 Bias Current This function allows the user to program DC bias current to Off or from 1mA to 1A in 1mA steps with a maximum compliance vo
77. o change ad 1 1 Bin 1 LoLim Program Lo absolute limit 80 000 mH Right P arrow key to a select bin 2 thru 10Hi Bin 2HiLim Program and Lo limits and A Up Down oy Bin 2 thru 10 Hi amp Lo limits change these limits i PROGRAM key at 1 Bin10LoLim Program any time to return to Off Ready mode Right arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Page 56 of 110 Operation Programming 2 3 12 Secondary Nominal not shown if Secondary Parameter is set to No Secondary parameter This function allows the user to select a nominal value for the secondary displayed parameter and to program high and low limits around this nominal These limits are selected in absolute value or deviation about this nominal determined by bin type selection refer to paragraph 2 3 11 The limits do not have to be symmetrical there is an independent limit for both the high and low values The units for the nominal value Q mH uF or absolute value are determined by operator selection of the Secondary Parameter A Up or Down y aow key 1 Sec Nominal Program to enter change value 1 0000 1 Sec Nominal Program 10 000 Right P arrow key to select secondary limits 1 Sec HiDev Program 1 0000 A Up or Down y arrow 4 Sec HiDev key to change secondar 12 000 parameter Hi limit Program Right P arrow key to 4 Sec LoLim Program select secondary 1 0000 parameter Lo limit Up or Down arrow
78. o change binning HIGH limit value UP A 1 Bin 1 HiLim 110 0 mH Program Off or limit in value and units for Absolute Limit or value in for deviation 100 200 Press the RIGHT arrow to select binning LOW limit value Right gt 1 Bin 1 LoLim 100 00 mH Program Press the RIGHT arrow to change binning LOW limit value UP A 1 Bin1LoLim 90 00 mH Program Bins 2 through 10 Off or limit in value and units for Absolute Limit or value in for deviation 100 200 Limits can be set to Off at the point where Hi and Lo values converge Press the RIGHT arrow to select Hi and Lo limits for Bins 2 10 Right gt 1 Bin10LoLim 100 00 mH Program Press the UP or DOWN arrow to change Hi and Lo limits for Bins 2 10 UP A 1 Bin10LoLim 50 00 mH Program Off or limit in value and units for Absolute Limit or value in for deviation 100 200 Page 19 of 110 Programming continued Secondary Nominal Press the RIGHT arrow to select secondary nominal value Right gt 1 Sec Nominal Off Program Not shown if Primary Parameter is set to Automatic Press the UP or DOWN arrow to change secondary nominal value UP A 1 Sec Nominal 10 000 Program Binning Secondary Parameter Off or range of values and units that depend on secondary parameter Press the RIGHT arrow to select seco
79. oltage Leave the capacitor open circuited for a period of time then connect a voltmeter to it and measure the residual voltage The residual voltage is caused by the dielectric absorption of the capacitor Operation Programming 2 2 Power Up Once the 1910 is powered up it is ready for immediate testing if test conditions have been previously stored in one of the internal memory locations user tests 1 thru 30 Any of these test conditions and other instrument settings can be changed by easy to use menu functions For use of the functions refer to the Condensed Operating Instructions in the front of this manual and for more detailed descriptions and uses of these functions refer to Program Setup procedure which follows Connect the power cord female end to the AC inlet module on the rear panel of the instrument Connect the other end male end to the power receptacle The instrument 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 the 1910 by pressing the front panel POWER switch to ON 1 position The instrument sequences through a initialization routine display of operating software version and to the Ready mode of the test setup in which a measurement was made before the unit was last powered down Initializing 2 QuadTech Model 1910 V1 4 1 Ls Rs 1 0000kH
80. on the 1910 as listed see paragraph 2 3 3 Record the results in the Verification Data Sheet Service amp Calibration Page 107 of 110 5 3 2 1910 Verification Data Sheet Pri Actual Sec Actual Voltage Primary Meas Sec Meas Pspec 0 327 0 327 0 460 Pri Actual Sec Actual Primary Meas Sec Meas 100000 1000000 Pri Actual Sec Actual Primary Meas Sec Meas Pspec 0 116 100000 0 163 1000000 0 761 R6K Freq Pri Actual Sec Actual Voltage Primary Meas Sec Meas Pspec 1000 0 117 10000 0 117 100000 0 196 Freq Pri Actual Sec Actual Voltage Primary Meas Sec Meas Pspec Sspec 100 1 0 196 0 0020 1000 1 0 141 0 0014 10000 1 0 141 0 0015 Freq Pri Actual Sec Actual Voltage _ Primary Meas Sec Meas Pspec 10000 0 384 100000 0 197 1000000 0 679 Pri Actual Sec Actual Voltage Primary Meas Sec Meas Pspec 0 335 100000 0 207 1000000 1 039 Page 108 of 110 Service amp Calibration L1000uH Primary Meas Pspec 0 477 10000 0 161 100000 0 177 i Actual Actual Primary Meas i Pspec 0 959 100000 0 352 1000000 1 889 i Actual Actual Primary Meas Pspec 0 536 100000 0 256 1000000 1 248 Primary Meas Pspec 0 326 100000 0 208 1000000 0 930 i Actual Actual Primary Meas Pspec 0 200 100000 0 179 1000000 0 739 C1000p
81. or example if the primary display is selected for capacitance C the secondary defaults to dissipation factor D or for a primary of inductance L the secondary defaults to quality factor Q The following secondary parameters may be chosen No Secondary Param Ls Lp Rs Rp Cs Cp DF Q Z Y P ESR Gp Xs Bp V I Upon Downs anow key 1 Sec Param Program to select param ter of choice No secondary param 1 Sec Param Program Ls Ls thru 1 Sec Param Program Right p arrow key to program next parameter or PROGRAM key to exit Program Mode and return to Ready mode Operation Programming Page 43 of 110 2 3 3 Frequency not shown if Primary Parameter selected for DCV DCR or DCI This function allows the user to program the frequency of the AC test signal between 20Hz and 1MHz using two different methods When the Utility function Freq Edit Type is selected for Discrete selection is made from 15 possible frequencies selections over this range or when Freq Edit Type is selected for Continuous the frequency can be selected in increments of 1Hz below 100kHz and increments of 10Hz above 100kHz Refer to Utility functions paragraph 2 5 for information on the frequency edit type When discrete is selected the 16 possible frequencies are 20 50 100 200 400 500Hz 1 2 5 10 20 50 100 200 500kHz and 1MHz Up or Down arrow key 1 Frequency Program to change frequency 1 0000 KHz 1 Frequency Program 20 000 Hz 20 Hz t
82. or that resistor is set to 2 or 3 Examples ROI Value STANDARD 101 3 means 5 ohm resistor will use the first 3 data points STANDARD 212 1 0e3 means the Frequency for the 2nd record describing the 25 ohm resistor is 1KHz STANDARD 222 24 999 means the R value for the same record is 24 999 STANDARD 232 100 means the Q is 100 ppm for the same record The URQ 0x40 or decimal 64 bit in the ESR may be used for handshaking Enable it by setting 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 CAL OPEN CAL SHORT CAL QUIckos If a FULL calibration is being performed set the date using the DATE command CAL DATE MM DD YYYY The front panel display will remain active and prompts relating to the calibration may be read from the display or read over the remote When a new prompt is presented on the front panel the URQ bit will be set the ESR can be polled to detect this bit The prompt must be read to clear this bit CAL FETCH Returns the prompt The text of the prompt will indicate what action the user needs to take if any The second part of the string indicates what handshake is expected to allow the calibration to continue If it reads send CAL MEAS to continue Interface Page 91 of 110 Perform the action requested by the first part of the string and then send CAL MEAS I
83. positioned at eye level 1 5 3 Power Requirements A The 1910 can be operated from a power source between 100 and 240Vac at a power line frequency of 50 to 60Hz no line voltage switching is necessary Power connection to the rear panel is through an AC inlet module comprised of an AC connector and fuse drawer Before connecting the 3 wire power cord between the unit and AC power the fuses should be in accordance with the power source T2 5A 250V 5x20mm IET Labs PN 520049 for 115 or 220V source Always use an outlet which has a properly connected protection ground The instrument is factory shipped with the 2 5A fuse in place The instrument can be damaged if the wrong fuse is installed Page 34 of 110 Introduction Procedure for changing fuse WARNING MAKE SURE THE UNIT HAS BEEN DISCONNECTED FROM ITS AC POWER SOURCE FOR AT LEAST FIVE MINUTES BEFORE PROCEEDING NO USER SERVICEABLE PARTS INSIDE TO PREVENT ELECTRICAL SHOCK DO NOT OPEN COVERS REFER TO QUALIFIED PERSON CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE FUSE 250V 100 240V T2 5A 5x20mm 100 240V 50 60Hz 100 WATTS MAX MADE IN USA RS 232 REMOTE VO IEEE 488 S 2 3 4 Figure 1 4 Fuse Drawer Location Remove the fuse drawer by inserting a small flat head screwdriver behind the small tab to force the draw outward Refer to Figure 1 4 Once the fuse drawer has been completely removed
84. rogramming 2 5 4 Numeric Format Allows selection from two different measurement results formats Scientific or Engineering units Scientific units are expressed as an exponent and engineering units are expressed in ohms for resistance farads for capacitance henries for inductance etc For example e3 in scientific units can be expressed as kQ in engineering units or e3 in scientific units can be expressed as mQ in engineering units this is strictly 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 will be displayed as some number of digits with decimal and units The exception to this is that Q DF Phase and are always displayed as fixed point numbers A Up or Down arrow key Numeric Format Util to change format type Engineering Numeric Format Util Scientific Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Format example Engineering Scientific 1 Cs 6 5040 nf 1 Cs 6 5040 e 09 f Bin 1 DF 000525 Bin 1 DF 5 2545 e 04 Operation Programming Page 71 of 110 2 5 5 Trigger Source This function allows the operator to select the measurement trigger mode between Internal or External With trigger set for internal once a start command is initiated from front panel or remotely the measurements will be repetitive and continually upda
85. rrent thru the DUT s series equivalent circuit p parallel equivalent circuit An impedance 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 representation is called an equivalent circuit The value of the primary measurement of a device depends on which equivalent circuit series or parallel is chosen to represent it The manufacturer or user of a device specifies how a device is to be measured usually series and at what frequency If this is not known be sure to specify if the results were series or parallel and what the measurement frequency was Series and parallel equivalent circuits for a lossy inductor and lossy capacitor are shown in Figure 2 2 Series Parallel Rs Rs Rp Rp Cp or Lp or G G Cs Ls P P IMPEDANCE ADMITTANCE Capacitive Inductive Capacitive Inductive Figure 2 2 Series and Parallel Circuits for both Capacitive and Inductive Impedances Operation Programming Page 41 of 110 Impedance is the parameter used to characterize electronic components materials and circuits Impedance IZI is defined as the opposition a device or circuit offers to the flow of ac current at a particular frequency and generally represented as a complex quantity consisting of a real part resistance R and imaginary part reactance jX Impedance can be expressed using the rectangular coordinate form R
86. s and comparator settings etc Outputs include measurement conditions open corrections and measured values Data Formats Data will be transmitted in ASCII NR3 format per IEEE488 2 sec 8 7 4 and reproduced below Multiple results All response messages will be 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 Register 4 16 Message Available 3 8 Pass 2 4 None 1 2 None 0 1 None The Status Byte Register is readable via the standard STB as defined in paragraph 11 2 2 2 of the IEEE spec The 1910 will also implement an SRE register to enable each bit of the Status Byte Register per paragraph 11 3 2 of the IEEE spec This register shall be readable by a SRE command and writeable by a SRE lt gt command Page 94 of 110 Interface Standard Event Status Register Decimal Value 128 64 32 16 8 CH NKYRUDN 4 2 1 Use Power Up Since Last Query None Command Error Syntax Execution Error Over Range etc None Query Error None 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 Event register must be enabled in order to cause the ESB bit of the Status Register to be set This enabling is done in the
87. s and Connectors Reference Name Type Function Figure 1 2 1 AC Inlet Module 3 prong receptacle and fuse Fuse draw and 3 wire connection for AC power draw Source 2 5A 250V fuse for 100 240 volt operation 2 RS 232 9 pin DB Type connector Input Output connections for RS 232 interface 3 Remote I O 37 pin DB Type connector Input Output connections for handler interface 4 TEEE 488 24 pin connector Input Output connections for IEEE 488 interface NOTE User cable specifications for use with CE Mark 1910 RS 232 Shielded cable required Remote I O Cable must be double shielded inner braid and outer foil TEEE 488 Shielded cable required Introduction Page 33 of 110 1 5 Installation 1 5 1 Dimensions The 1910 Inductance Analyzer is supplied in a bench configuration i e in a cabinet with resilient feet for placement on a table or bench Figure 1 3 illustrates the 1910 instrument dimensions The unit can be configured for rack mount applications using the 2000 16 optional Rack Mount Flanges 1910 Inductance Analyzer 133mm QuadTech 406mm 432mm Figure 1 3 Instrument Dimensions 1 5 2 Instrument Positioning The front panel includes a high resolution back lit LCD display A front bail is provided so that the unit can be tilted back for convenient operator viewing The optimum angle for viewing is straight onto the display This means that for bench or rack operation the instrument should be
88. t 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 remote Invalid command received from the remote Only the arrow keys are valid Only the arrow and utility keys are valid Only the arrow and program keys are valid Invalid test set to default Only the up and down arrow keys are valid Only the start and stop keys are valid Only up down and right arrow keys are valid Only up down start and test keys are valid Quick short open valid only for single test DSP appears busy Press STOP to clear DSP did not take enough samples Operation Programming Page 77 of 110 Operator Help messages continued Test is disabled program sequence test DSP reported invalid params check setup Frequency and locked range incompatible Locked range invalid for AC set to HOLD Primary nominal invalid Set to default Secondary nominal invalid set to default Load correction invalid for AUTO meas disabled Bin limits reset to defaults Test restored from defaults correctly Eeprom calibration defaults being set Saving cal coefficients Please wait TEEE488 hardware not detected Eeprom test step data defaults being set Eeprom misc data defaults being set Eeprom cal kit data defaults being set Eeprom lockout state default being set Calibration measurement failed Invalid calibration code Cal kit data invalid Please re enter Inv
89. t and open zeroing at the currently programmed frequency only used if measurements are to be over a wide range of impedance Short Cal Short zeroing at all frequencies used if measurements are to be low impedance Open Cal Short zeroing at all frequencies used if measurements are to be high impedance Short Open Cal Both short and open zeroing at all frequencies used if measurements are to be over a wide range of impedance Full Cal This procedure will alter the calibration of the instrument and should only be used by qualified calibration personnel with password entry The proper calibration equipment is required to perform this procedure see the Service and Calibration section of this manual for addition information Operation Programming Page 63 of 110 The example below performs a quick open short other routines are similar with user prompting displayed on the instrument display Right P arrow key to skip Cal with 1 M Cable Indicates due date of Open short and go to Keypad Cal Due 1 10 2001 next annual calibration Lockout or A Quick Short Cal Up or Down y arrow key Cal with 1 M Cable Quick Open Cal to select open short Quick Short Open Cal Quick Short Open Cal calibration Short Cal Open 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 P arrow key to start Connect OPEN standard c
90. ted until a stop command is initiated With trigger set for external a single measurement will be made once a start command is initiated from front panel or remotely A Up or Down y aow key Trigger Source Util to change trigger source Internal Trigger Source Util External Right arrow key to program next Utility function or UTILITY key to exit 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 100Q In general the measuring instrument s source impedance will usually have a direct effect on the measured impedance of the device This is especially important when measuring the Q of a device and comparing the results between two different testers in a true comparison the source impedance of the measuring instruments would be expected to be the same A Up or Down y arrow key Source Impedance Util to change source impedance 50 50 250 50Q or 1000 Source Impedance Util 1000 Right arrow key to program next Utility function or UTILITY key to exit and return to Ready mode Page 72 of 110 Operation Programming 2 5 7 RS 232 Baud Rate This function allows the operator to select the baud rate when communicating via the RS 232 interface selections possible include 9600 19200 9600 AutoReport 19200 AutoReport or Disabled The Auto Report options are used to log test results and error messages on a receiv
91. ts in a sequence have been completed and the assignment will be bin 1 if all tests 1 to 6 pass or will be N 1 where N is the number of the first test that fails One of these 7 bin outputs will always be asserted during a sequence test even if all binning is turned Off bin 1 is asserted as a Pass Operation Programming Page 61 of 110 2 5 Utility Functions The Utility functions allow the user to set instrument functions that affect all tests When the UTILITY key is pressed the first function Cal and other functions as list in Table 2 4 are accessed by pressing the Right Barrow key BOLD settings are the default settings Table 2 4 Programmable Parameters For Utility Functions Cal with X M Cable Cal Due 1 1 2001 Quick Short Cal 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 Nominal Engineering Scientific Trigger Source Internal External Source Impedance 5Q 250 500 1000 RS232 Baud Rate 9600 19200 9600AutoReport 19200AutoReport Disabled IEEE 488 Address 1 to 16 factory default set for 3 Clear All Tests Off On Cable Compensation No Cable 1 M Cable 2 M Cable Continuous Median of 3 Check ooo T AC test Serial Number al Number ETT VXXX Page 62 of 110 Operation Programming The Utility Function factory shipped default conditio
92. turned as absolute deviation even if bin type is deviation This is a convenient way to see what the actual limits will be when setting up a test IDN Returns instrument identification QuadTech Inc 1910 xx xx software version x denotes 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 Returns the read of the service request enable register ESE Set the event status enable register value SRE Set the service request enable register value RST Reset the common buffers TST Self test query CLS Clear standard event status register OPC Operation complete OPC Is operation complete WAIT Wait until operation is complete before executing next command Interface Page 89 of 110 3 4 4 Remote Calibration Calibration can also be controlled from a remote terminal RS 232 or IEEE 488 The LCD display is also active but the prompts returned to the terminal use different wording The unit must be in LOCAL LOCKOUT state the light below the remote light will be lit If the host terminal is RS 232 prompts are sent by the 1910 with no action by the host The URQ bit in the ESR is used to signal to an IEEE 488 host that a prompt is available This bit may be monitored by polling ESR or the SRQ mechanism may be used to retrieve prompts Refer to your IEEE 488 documentation for
93. utomatic 2 3 1 Primary Parameter Any combination of two ac parameters or two dc parameters can be measured and displayed simultaneously on the 1910 one referred to as the Primary displayed first and the other the Secondary see paragraph 2 3 2 The instrument can be set for a primary parameter selection of Auto a feature which enables any passive component to be measured without knowing what type of component it is The parameter selection can be chosen by the operator through menu selection as shown below 1 Prim Param Program Up or Down a arrow key Automatic 9 to select param ter of choice 1 Prim Param Program Ls Ls thru DCI f 1 Prim Param Program Right p arrow key to program DCI next parameter or PROGRAM key to exit Program Mode and return to Ready mode Page 40 of 110 Operation Programming The following selections are possible and discussed in more detail below Ls Inductance in henries P Phase Angle in degrees Lp Inductance in henries IESRI Equivalent series resistance in ohms Rs Resistance in ohms Gp Conductance in siemens Rp Resistance in ohms Xs Reactance in ohms Cs Capacitance in farads Bp Susceptance in siemens Cp Capacitance in farads V AC voltage across the DUT DF Dissipation Factor no units I AC current thru the DUT Q Quality Factor no units DCV DC voltage across the DUT IZI Impedance in ohms DCR DC resistance in ohms IYI Admittance in siemens DCI DC cu
94. ww JET Labs com for the latest sample programs that may be available Table 3 4 IEEE RS 232 Commands Command Function Parameter s SAVE SAVE Save changes entered by remote since power up NOTE Command must be entered twice If not done changes will be lost on power cycle TEST TEST Set test number nn STEP Set step number 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 values but for convenience in programming they are not entered as numeric but rather as a more understandable command For example when programming the primary parameter for Lp it would appear as CONF PPAR LP which is also equivalent to CONF PPAR 2 It is possible to create a command that appears wrong but will not generate any error message If the command was CONF PPAR DPCT the primary parameter would still be Lp because DPCT is interpreted as a numeric value of 2 even though it s a subset of an entirely different command subset of DISPlay To eliminate any confusion always use the subset commands in conjunction with those listed in this table Page 84 of 110 Interface Table 3 4 Continued IEEE amp RS 232 Commands Command Function Parameter s CONFigure PPARameter Set primary parameter AUTO LS LP RS RP CS CP DFQZYP ESR GP XS BP VI DCV DCR DCI SPARameter Set second
95. xit Cal routine Connect Test Leads in OPEN configuration to 1930 OPEN Kelvin Leads Placed Apart Press the START to initiate open calibration measurement START C 1 9 F1 15 V2 Open Correction factor Open correction Page 22 of 110 Tester Utility Functions continued Connect SHORT standard Press START to continue Connect Test Leads in SHORT configuration to 1930 SHORT Kelvin Leads Clipped Together Remove Open Press the START to initiate short calibration measurement START START OR UTILITY C 1 9 F1 15 V2 Short correction Calibration Complete Press START to continue 1Ls Rs 1 0000 kHz 1 000V No Bias Auto High Cal with 1M Cable Cal Due 1 10 2001 Short Correction factor Ready Mode To program other Tester Utility Functions Press the RIGHT arrow to program other UTILITY functions Keypad Lockout Press the UP or DOWN arrow to change keypad lockout type UP A Press the RIGHT arrow to select lockout value Right p gt Keypad Lockout Util Lock Password Keypad Lockout Util 000000 Off Lock Password or Lock Cycle Tests Password Press the UP or DOWN arrow to change lockout value UP A Keypad Lockout Util 888888 0 through 9 for all six digits Use Right Arrow to select move to next digit Page 23 of 110 Tester Utility Functions continued
96. y Press the RIGHT arrow to select delay time Right gt 1 Delay 0 00 ms Program Press the UP or DOWN arrow to change delay time value UP A Averaging Press the RIGHT arrow to select number to average Right p gt 1 Delay Program 100 00 sec 1 No toavg Program 99 Off or 100msec to 100 00sec in 10msec steps Press the UP or DOWN arrow to change number to average value UP A Primary Nominal Press the RIGHT arrow to select primary nominal Right gt 1 No toavg Program y Pri Nominal START get 1 0000 H 1 to 1000 in increments of 1 Not shown if Primary parameter is set to Automatic Press the UP or DOWN arrow to change primary nominal value UP A Page 18 of 110 PriNominal START get 900 000 mH Range of values and units depend on primary parameter selected at first step Programming continued Binning Primary Parameter Press the RIGHT arrow to select bin type Right gt Press the UP or DOWN arrow to change bin type UP A 1 Bin Type Program Off 1 Bin Type Program Absolute Not shown if Primary Parameter is set to Automatic Absolute Percent Deviation or Off Press the RIGHT arrow to select binning HIGH limit value Right p gt 1 Bin 1 HiLim 100 00 mH Program Not shown if Binning is set to Off for all bins Press the UP or DOWN arrow t
97. z 1 000V No Bias Auto High 2 3 Program Setup Procedure Test 1 30 Figure 2 1 illustrates the typical display after the 1910 powers up and initializes its circuitry Primary Secondary Test Parameter Parameter Frequency Noto gt 1 Ls Rs 1 0000kHz 1 000V No Bias Auto High 2 7 4 K AC Test Bias Measurement Measurement Voltage Current Range Accuracy Figure 2 1 Typical Display Operation Programming Page 39 of 110 The display illustrated in Figure 2 1 is typical on power up with the programmed test conditions shown for setup 1 in the Ready state To view programmed setups To select any test setup number for viewing simply press the Up or Down arrow keys while in the Ready state user test 1 30 or sequence S1 S9 and press Right arrow key to view individual test parameters Sequence tests S1 S9 can be any combination of user tests up to a maximum of 6 these are discussed in paragraph 2 4 To program setups Select the desired test setup number by pressing the Up or Down arrow keys while in the Ready state shown above then press the PROGRAM key to enter the program mode Program mode can be exited at any time and instrument returned to Ready state by pressing PROGRAM key or program mode is exited automatically after sequencing through all test parameters with Right arrow key Programmable functions are discussed below Test Instrument Number 5 Prim Param Program Status A

1910 Inductance Analyzer User and Service Manual

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