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Saluki STB8827 Series Operation Manual

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Saluki Technology Inc.

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Summary of Contents for Saluki STB8827 Series

  • Page 1 STB8827 Series Saluki Technology Inc.

  • Page 2: Table Of Contents

    STB8827 Series Operation Manual Contents Contents Chapter 1 Out of Box Audit ..............1 To Inspect the package ............1 Power connection ..............1 Fuse ..................1 Environment ................. 2 Use of Test Fixture ..............2 Warm-up ................2 Other features ............... 3 Chapter 2 Introduction ................
  • Page 3 STB8827 Series Operation Manual Contents <MEASURE SETUP> ............. 24 3.5.1 Trigger mode ............25 3.5.2 Auto level control function .......... 26 3.5.3 Bias current isolation function ........26 3.5.4 Average ..............27 3.5.5 Level monitor function ..........27 3.5.6 Delay time ............... 28 3.5.7...
  • Page 4 STB8827 Series Operation Manual Contents 5.1.1 Sweep correction ............52 5.1.2 Point-freque ncy correction.......... 52 Correct connection of DUT............. 53 Eliminate the influence of stray impedance ......54 Operation example for testing inductance with STB8827A ... 55 5.5 Operation example of testing capacitance by multi-frequency list sweep 57 Transformer Measurement.............
  • Page 5 STB8827 Series Operation Manual Contents 6.3.8 Accuracy factor............71 6.3.9 Accuracy of DCR ............75 Safety requirement .............. 75 6.4.1 Insulation resistance ..........75 6.4.2 Insulation intensity ........... 75 6.4.3 Leakage current ............76 Electromagnetic compatibility ..........76 Performance test ..............76 6.6.1...
  • Page 6 STB8827 Series Operation Manual Contents Announcement The description of the manual may not cover all contents of the instrument, and our company is subject to change and to improve the performance, function, inner structure, appearance, accessory and package of the instrument without notice.

  • Page 7: Chapter 1 Out Of Box Audit

    STB8827 Series Operation Manual Chapter 1 Out of Box Audit Chapter 1 Out of Box Audit When you receive the instrument, some inspections are necessary, and the condition must be understood and available before installing the instrument. 1.1 To Inspect the package Inspect the shipping container for damage after unpacking it.

  • Page 8: Environment

    STB8827 Series Operation Manual Chapter 1 Out of Box Audit Environment 1) Please do not operate the instrument in the place that is vibrative, dusty, under direct sunlight or where there is corrosive air. 2) The normal working temperature is 0℃～40℃, relative humidity ≤75%, so the instrument should be used under above condition to guarantee the accuracy.

  • Page 9: Other Features

    STB8827 Series Operation Manual Chapter 1 Out of Box Audit Other features 1) Power: consumption power≤80VA. 2) Dimension (W*H*D): 430mm*185mm*473mm 3) Weight: About 13kg.

  • Page 10: Chapter 2 Introduction

    Chapter 2 Introduction Chapter 2 Introduction In this chapter, the basic operation features of STB8827 series are described . Please read the content carefully before using STB8827 series instruments, thus you can learn the operation of STB8827. 2.1 Introduction to front panel Figure 2-1 shows the front panel of STB8827.
  • Page 11 STB8827 Series Operation Manual Chapter 2 Introduction ESCAPE key. 8) [←] BACKSPACE key is used delete the last numeric of the input value. 9) PASS indicator LED indicator shows the test result has passed. 10) FAIL indicator LED indicator shows the test result has failed.

  • Page 12: Introduction To Rear Panel

    STB8827 Series Operation Manual Chapter 2 Introduction 800*480 colorful TFT LCD displays measurement results and conditions. 20) POWER Power switch 21) [DC BIAS] Press this key, it will be lighted which means DC bias output is permitted. Press this key once more, it will be off which means DC bias output is prohibited.

  • Page 13: Introduction To Display Zone

    STB8827 Series Operation Manual Chapter 2 Introduction system. USB DEVICE interface The tester can communicate with PC through the USB DEVICE interface. 3) RS232 interface Series communication interface can realize the communication with PC. 4) HANDLER interface Handler interface is used to realize the sorting output of test results.

  • Page 14: Main Menu Keys And Corresponding Displayed

    STB8827 Series Operation Manual Chapter 2 Introduction Figure 2-3 display zones 1) Display page name Indicate the name of the currently displayed page. 2) Soft keys The zone is used to display the function definition of soft key. The definition of soft key can be different as the difference of cursor’s direction in the zone.

  • Page 15: Setup]

    STB8827 Series Operation Manual Chapter 2 Introduction 2.4.2 [SETUP] When the LCR function is active, press this key-[SETUP], the following soft keys will be displayed in the soft key zone on the LCR measurement setup page. <MEAS SETUP> <CORRECTION> <LIMIT TABLE>...
  • Page 16 STB8827 Series Operation Manual Chapter 2 Introduction the version number of the software. If the password protection function is on, users are required to input the password and then press [ENTER] to enter into the page of main menu. ———————————————————————————————————————...

  • Page 17: Chapter 3 Introduction To [Meas]

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Chapter 3 Introduction to [MEAS] 3.1 <MEAS DISPLAY> When the LCR function is applied, press [MEAS], the <MEAS DISPLAY> page will be displayed on screen as shown in the following figure.
  • Page 18 STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Primary parameter |Z| (Module of impedance)  |Y| (Module of admittance)  L (Inductance)  C (Capacitance)  R (Resistance)  G (Conductance)  DCR (DC resistance)  L2A (Primary inductance) ...
  • Page 19 STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] 3) Press Cs—…→ , the following parameters will be shown for your choice. Cs-D  Cs-Q  Cs-Rs  ←  Press the soft key corresponding to your desired parameter. Then press ← to return to upper soft key menu.
  • Page 20 STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Press the soft key corresponding to your desired parameter. Then press ← to return to upper soft key menu. 9) Press R—…→, the following parameters will be shown for your choice.

  • Page 21: Test Range

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] 3.1.2 Test range Measurement range should be selected in accordance with the impedance value of the tested LCR component. STB8827has 9 AC measurement ranges: 10Ω, 30Ω, 100Ω, 300Ω, 1kΩ, 3kΩ, 10kΩ, 30kΩ, 100kΩ.

  • Page 22: Test Level

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] this key, the frequency will change as the following sequence: 20Hz, 100Hz, 1kHz, 10kHz, 100kHz, 200kHz, 300kHz. ↑(+)  This is a fine adjustment soft key used to increase the frequency. Press...

  • Page 23: Dc Bias

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Level voltage Resolution 50 mVrms ～ 100mVrms 100 μVrms 100 mVrms ～ 1Vrms 1mVrms 1Vrms ～ 2Vrms 10mVrms ——————————————————————————————————————— Note: The measurement current is the output one when the tested terminal is short, while the measurement voltage is the output one when the tested terminal is open.

  • Page 24: Test Speed

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] ↑(+)  This soft key is used to increase the output level of DC bias. ↓(-)  This soft keys is used to decrease the output level of DC bias. 2) Soft or numeric keys can be used to select or set the DC bias source. When numeric soft keys are used to input the desired bias level, the available units ((mV, V, µA, mA and A) will be displayed in the soft key zone.

  • Page 25: Bin No. Disp

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] displayed: DECIMAL AUTO  DECIMAL HOLD  DECIMAL LOCATION +  DECIMAL LOCATION -  2) Press DECIMAL AUTO to reset the decimal position of the primary or the secondary parameter test result to its default setting.

  • Page 26: Comparator Function

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] introduced as below. The following test conditions are displayed in the measurement result/condition zone. These zones cannot be set on this page but can be set on <MEAS SETUP>, <MEAS DISP> or <CORRECTION>...

  • Page 27: Param

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] STB8827303 The following control parameters can be set on the <BIN COUNT> page. Count function ON/OFF (COUNT  There are 2 zones are displayed in this page: BIN COUNT DISP, COUNT. The function of each zone will be introduced as below.

  • Page 28: High/Low

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] 3.3.4 HIGH/LOW This zone shows the high and the low limits of the limit list. 3.3.5 COUNT This zone shows the count value of the current bin. 3.3.6 AUX This zone shows the count value of the auxiliary bin.

  • Page 29: Sweep Mode

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] STB8827304 Test points will be automatically tested in a scanning mode. Meanwhile, comparison will be made between test results and limit values. In the process of list sweep test, “►” denotes the current sweep test point. The following control parameters can be set on <LIST SWEEP DISP>.

  • Page 30: Freq (Hz)

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] STEP  2) Press SEQ to set the sweep mode as sequential sweep test mode. 3) Press STEP to set the sweep mode as single step sweep test mode. 3.4.2 FREQ (Hz) This zone shows the currently swept parameter mode and its unit.

  • Page 31: Trigger Mode

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Test level (LEVEL)  Test range (RANGE)  Test speed (SPEED)  DC Bias (DC BIAS)  Trigger Mode (TRIG)  Auto Level Control (ALC)  Delay Time (DELAY)  Output Resistance (Rsou.) ...

  • Page 32: Auto Level Control Function

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] as EXT. Operation steps for the trigger mode setup Execute the operation of other trigger modes except BUS trigger. If BUS trigger mode is necessary, then use IEEE4888 interface to send TRIGger:SOURce BUS command.

  • Page 33: Average

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] then instrument cannot work normally. Figure 3-1 Max. DC bias current Test 10Ω 30 Ω 100 Ω 300 Ω 1 kΩ 3 kΩ 10 kΩ 30 Ω 100 kΩ range Max.

  • Page 34: Delay Time

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Note: The correction function can influence the level monitor function, so when the correction data changes the level monitor value will change. When the correction is switched between OPEN or SHOR or LOAD, the level monitor value will be influenced as well ———————————————————————————————————————...

  • Page 35: Deviation Test Function

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Note: When an optional bias board is selected, only 100Ω is available. Operation steps for setting output resistance Execute the following operations to set output impedance 1) Move the cursor to the Rsou zone, the following soft keys will be displayed.

  • Page 36: Correction

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] MEAS  When the reference component is connected to the test terminal, you should press MEAS. Then STB8827 will test the reference component and the test result will be automatically input as the value of REF B.

  • Page 37: Open

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] page. Open correction (OPEN)  Short correction (SHORT)  Load correction (LOAD)  Cable length selection (CABLE)  Load correction test function (FUNC)  Calibretion point (SPOT No.)  Frequency points of OPEN, SHOR and LOAD (FREQ) ...
  • Page 38 STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] points, the highest test frequency of STB8827C is 1MHz (48 points). 20 Hz 100 Hz 1 kHz 10 kHz 100 kHz 25 Hz 120 Hz 1.2 kHz 12 kHz 120 kHz...

  • Page 39: Short

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] 3.6.2 SHORT The short correction function of STB8827 can eliminate the error caused by spurious inductance (R, X) in serial with DUT as shown in figure 3-2. Figure 3-2 Spurious Inductance STB8827 adopts two kinds of short correction data.

  • Page 40: Load

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] frequency correction takes about 75 seconds and in this process, the following soft keys will be displayed. ABORT  This soft key can be used to cancel the current short correction operation and reserve the formal open correction data.

  • Page 41: Load Correction Test Function

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] frequency is displayed on the frequency setting zone. Use numeric keys to input the correction frequency. After pressing any numeric key, the available unit keys (Hz, kHz and MHz) will be displayed on the soft key zone and these soft keys can replace the [ENTER] key to input correction frequency.

  • Page 42: Cable Length Selection

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] value should conform with the preset load correction test function. Load correction function adopts the transport coefficient between the real test value of preset frequency and the standard reference value to eliminate the test error.

  • Page 43: Swap Parameter

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Low limit of each bin (LOW)  High limit of each bin (HIGH  3.7.1 Swap parameter The swap parameter function can swap the primary and the secondary parameter in PARAM. For example, when the test parameter is Cp-D, the swap parameter function can change the test parameter as D-Cp.
  • Page 44 STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] Figure 3-3 Tolerance mode and Sequential mode ——————————————————————————————————————— Note: When setting limit values of tolerance mode, the error range should be set in the order from small to large. If the error range of BIN1 is the largest one, then all DUT will sort into BIN 1.

  • Page 45: Set Nominal Value Of Tolerance Mode

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] 3.7.3 Set nominal value of tolerance mode When the tolerance mode is selected as the limit mode of the primary parameter, it is necessary to set the nominal value. The nominal value can be any one within the display range.

  • Page 46: High/Low

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] secondary parameters are unqualified and the corresponding primary parameters are within limit ranges, those components will be sorted into BIN OUT. On <LIMIT TABLE SETUP> page, the low/high limit of the secondary ...

  • Page 47: List Sweep Setup

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] – (absolute limit) and the high limit will be + (absolute limit). 4) The cursor will automatically move to LOW of BIN 2. Repeat step 3 until the limits of BIN 9 are input. Then the cursor will automatically move LOWof 2...

  • Page 48: Mode

    STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] page, the following list sweep parameters can be set. Sweep mode (MODE)  Sweep parameter setup (frequency [Hz], level [V], level [I], bias [V], bias  [I]) Sweep test point setup (sweep point) ...
  • Page 49 STB8827 Series Operation Manual Chapter 3 Introduction to [MEAS] soft key LMT A, “A” will be displayed in the LMT zone. When press the soft key LMT B, “B” will be displayed in the LMT zone. While press the soft key OFF, data in LMT zone and the corresponding high and low limits will be cleared and be displayed as “---”.

  • Page 50: Chapter 4 [System] And

    STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE] Chapter 4 [SYSTEM] and <FILE MANAGE> 4.1 <SYSTEM SETUP> Press [System] and then SYSTEM SETUP to enter into the <SYSTEM SETUP> page shown as below. STB8827401 On this page, most system setup items are displayed, such as instrument main function, beeper, PASS beeper, FAIL beeper, language, PASS word, bus mode, GPIB address, TALK only, Bias SRC, baud rate, data/time.

  • Page 51: Fail Beep

    STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE]  This soft key is used to set the pass beep function OFF. 4.1.2 FAIL BEEP This zone is used to control and display the beep mode as FAIL BEEP when the test result is unqualified.

  • Page 52: Bus Mode (Reserved Function)

    STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE] MODIFY  This soft key is used to modify the password. The operation steps are as follows: Press MODIFY to input a new password. After inputting, the prompt information will appear on the screen to prompt you to confirm the new password.

  • Page 53: Bias Src

    When moving to the time zone, users can modify the system time. 4.2 LCR <FILE MANAGE> STB8827 series instrument can save the user-set parameter to the nonvolatile memory in the form of file, so when use the same setting next time user can load a corresponding file to obtain the parameter set and used last time .

  • Page 54: Setup File For Single-Group Component (*.Sta)

    STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE] Press [FILE MANAGE] to enter into the file manage page, shown as below: STB8827402 4.2.1 Setup file for single-group component (*.STA) 40 groups of different single groups of component set file (*.STA file) can be...

  • Page 55: U-Disk Manage Performance

    STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE] REF B  Control and set parameters on <BIN COUNT DISP> page  BIN COUNT (ON/OFF)  Control and set parameter on <LIMIT TAABLE SETUP> page  PARAM (swap parameter) ...
  • Page 56 STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE] LOAD  SAVE   FIND   COPY TO E:   3) In the file list, move the cursor to the file-saved position or input the file number directly.
  • Page 57 STB8827 Series Operation Manual Chapter 4 [SYSTEM] and [FILE MANAGE] COPY to E:   3) Move the cursor the file to be copied and press [ENTER] to confirm. 4) Press COPY to E: to copy the file the instrument.

  • Page 58: Chapter 5 Execute Lcr Operation And Some Examples

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples Chapter 5 Execute LCR operation and some examples 5.1 Correction operation To execute correction operation (in order to prevent the stray impedance from affecting the test accuracy, it is necessary to make open/short correction), users can select one of the two correction modes.

  • Page 59: Correct Connection Of Dut

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples c) Press ON to turn on the open correction function. d) Move the cursor to the SHORT zone, ON, OFF and MEAS SHORT will be displayed in the soft key zone.

  • Page 60: Eliminate The Influence Of Stray Impedance

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples test leads will directly change stray capacitance and inductance on test terminals and this problem is unavoidable, because the test leads cannot be fixed in a position. So, the use of the test fixture should be used as possible in high frequency. If the test fixture is unavailable or cannot be used, the status of test leads should be the same in the processes of correction and test.

  • Page 61: Operation Example For Testing Inductance With Stb8827A

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples Shielding ground Shielding plate Test terminal Metal conductor Figure 5-2 Eliminate the influence of stray capacitance When the DUT has high impedance(such as small capacitance), the influence of stray capacitance cannot be ignored. Figure 5-1 is an example of the use of 4 terminal pair measurement.
  • Page 62 STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples Operation steps 1) Turn on the instrument. Set basic parameters a) Press [MEAS] to enter into the <MEAS DISP> page. b) Use the knob to move the cursor to FUNC, the current item is displayed as Cp-D.

  • Page 63: Operation Example Of Testing Capacitance By Multi-Frequency

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples Operation example of testing capacitance by multi-frequency list sweep Test condition: Function: Cp-D Level: 1Vrms Other parameters Frequency Compare parameter Low limit High limit 1kHz Cp(capacitance) 325.0nF 333.0nF D（Dissipation...
  • Page 64 STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples and the following units will be displayed in the soft key zone: p, n, μ, m and k. Press n, this zone will be changed as 333.000n and the cursor will automatically move to the parameter zone of sweep point 2.

  • Page 65: Transformer Measurement

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples NOTE: When the sweep open/short correction is used, the point-frequency correction function should be set as OFF. Refer to Correction operation in this chapter. 5.6 Transformer Measurement Aiming at the rapidly increased demand for electronic transformer, STB8827A...

  • Page 66: Primary And Secondary Inductance L2A, L2B

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples Figure 5-17 Schematic diagram for transformer test connection In figure 5-17, the winding connected to the Hpot terminal is defined as primary, winding A; the winding connected to the Hcur terminal is defined as secondary, winding B.

  • Page 67: Mutual Inductance M

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples When the measurement parameter is L2A-N, N is the turn ratio of primary to secondary; When the measurement parameter is L2B-N, N is the turn ratio of secondary to primary.

  • Page 68: Leakage Inductance Lk

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples After selecting the parameter to Ls-DCR, press PARA A again to turn off the AC test and enter into the DCR independent test status. 5.6.5 Leakage inductance L Leakage inductance is not the direct measurement parameter of STB8827A .

  • Page 69: Capacitor Sorting

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples 5.7.1 Capacitor sorting Capacitor type: 0805CG271 Basic requirements: the capacitance is divided into two bins: BIN J and BIN K. When the capacitance passes and the loss fails, it will be sorted additionally.

  • Page 70: Operation Example Of Load Correction

    STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples TRIGGER MODE as EXT (external trigger). 3) Press SETUP---LIMIT to enter into the LIMIT TABLE SETUP page and set the nominal value, primary parameter tolerance mode, upper/lower limit parameter, comparator switch and auxiliary bin switch.
  • Page 71 STB8827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples available units will be displayed in the soft key zone: p, n, μ, m and k. Press [ENTER], this zone will be changed as 0.00050. p) Move the cursor to FREQ .

  • Page 72: Chapter 6 Performance And Test

    STB8827 Series Operation Manual Chapter 7 Command Reference Chapter 6 Performance and Test 6.1 Test function 6.1.1 Parameter and symbol C：capacitance L：Inductance R：resistance Z：impedance Y：Admittance X：reactance B：susceptance G：Conductance D：dissipation ：phase angle Q：Quality factor Lk: leakage inductance DCR: DC resistance Test combination Parameters described above are combined in the following modes: Z，Y...

  • Page 73: Delay Time

    STB8827 Series Operation Manual Chapter 7 Command Reference 6.1.5 Delay time Delay time: time from trigger to start. 0 to 60s are programmable with a resolution of 1ms. 6.1.6 Connection modes of test terminals STB8827A adopts 4-terminal test method. HD(Hcur): current sample high terminal LD(Lcur): Current sample low terminal HS(Hpot)：voltage sample high terminal...

  • Page 74: Signal Mode

    STB8827 Series Operation Manual Chapter 7 Command Reference 6.2.2 Signal mode Normal: When testing, on measurement display page, voltage across test terminals may be smaller than preset voltage. Constant level: The auto adjustment of internal level makes the voltage of DUT accordant with preset voltage.

  • Page 75: Dc Bias Voltage Source

    STB8827 Series Operation Manual Chapter 7 Command Reference 6.2.7 DC bias voltage source 0V— ± 5V Minimum resolution: 0.5mV, Accuracy: 1% x preset voltage+5mV 0mA—± 50mA Minimum resolution: 5μA 6.3 Measurement accuracy Test accuracy includes stability、temperature coefficient、linear degree、test repeatability and calibration inter-error.

  • Page 76: Accuracy Of Q

    STB8827 Series Operation Manual Chapter 7 Command Reference When D >0.1，D should be multiplied by（1+D ） 6.3.3 Accuracy of Q The accuracy of Q is given by the formula below：  D   D 1 Q Where, Q is the value of the tested Q.

  • Page 77: Accuracy Of Rs

    STB8827 Series Operation Manual Chapter 7 Command Reference 6.3.7 Accuracy of Rs When D （value of tested D）≤0.1 The accuracy of R is given by the formula below： ×D [Ω] = 2πfL  Where, X is the value of test X with the unit [S].
  • Page 78 STB8827 Series Operation Manual Chapter 7 Command Reference The basic measurement accuracy factor A can be obtained by the following methods: In figure A, two values of basic measurement accuracy A are included in each frame. For example, the two values in the middle frame are 0.05(top) / 0.1(bottom).
  • Page 79 STB8827 Series Operation Manual Chapter 7 Command Reference When in the boundary line of the frame, select a smaller value. The basic measurement accuracy factor A is applicable to test level range of 500mVrms--1.0Vrms. When exceeding this level range, select the value of A...
  • Page 80 STB8827 Series Operation Manual Chapter 7 Command Reference  110 150kHzfm  9 (10 10  ≤ 1MHz  2.510  9 (0.610 )(1 fm 1.2kHz 1.2kHzfm 9  (210  2.510 ≤8kHz  Fast 8kHzfm 9  (610 ≤150kHz ...

  • Page 81: Accuracy Of Dcr

    STB8827 Series Operation Manual Chapter 7 Command Reference Table F Direct Calibrated frequency [Hz] [Hz] [kHz] [kHz] [kHz] [MHz] Cable length factor K 0.15%×(F / 1MHz) × L : test frequency [MHz] L: test cable length [m], respectively 0m, 1m, 2m Table G Temperature factor K Temperature (℃)

  • Page 82: Leakage Current

    STB8827 Series Operation Manual Chapter 7 Command Reference and the instrument jacket should bear an AC voltage (50Hz frequency and 1.5kV rated voltage) for 1 minute and there is no breakdown and flashover. 6.4.3 Leakage current The leakage current should not be larger than 3.5mA (AC effective value).

  • Page 83: Function Check

    STB8827 Series Operation Manual Chapter 7 Command Reference Ω 10kΩ 100kΩ 100μ Standard inductor 0.02% 10mH 100mH Frequency counter （0～1000） Digital Multimeter ％ Insulation resistance meter 500V 10 levels 0.25kW Hipot Tester （0～500） 6.6.3 Function check Ensure function keys, displayer and terminal etc. can work normally.

  • Page 84: Accuracy Of L

    STB8827 Series Operation Manual Chapter 7 Command Reference Bias Speed Slow Open and short correction should be made before testing. Connect standard capacitors: 100pF, 1000pF, 10nF, 0.1uF, 1uF and change the frequency. The error capacitance C between reading and nominal value should be in the range ruled in this chapter, dissipation D should be in the range ruled in this chapter.
  • Page 85 STB8827 Series Operation Manual Chapter 7 Command Reference 0.1Ω, 1Ω, 10Ω, 100Ω, 1kΩ, 10kΩ, 100kΩ. The error between reading and nominal value should be in the range ruled in this chapter.

  • Page 86: Chapter 7 Command Reference

    STB8827 Series Operation Manual Chapter 7 Command Reference Chapter 7 Command Reference The signs in this manual are as follows: NR1: integer, e.g.:123 NR2: fix-point number, e.g.: 12.3 NR3: floating-point number, e.g.: 12.3E+5 NL: carriage key, ASCII code: 10 ˆEND: EOI signal in IEEE-488 7.1 Subsystem commands for STB8827...
  • Page 87 STB8827 Series Operation Manual Chapter 7 Command Reference DISPlay :PAGE MEASurement BNUMber BCOunt LIST MSETup CSETup LTABle LSETup SYSTem FLISt :LINE “<string>” :RFONt LARGe TINY The :PAGE command sets the display page. The :DISPlay:PAGE? query returns the current page. Command syntax: DISPlay:PAGE<page name>...

  • Page 88: Frequency Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference <LIST SWEEP MEAS> The current page is the list sweep display page. <MEAS SETUP> The current page is the measurement setup page. <CORRECTION> The current page is the correction page. <LIMIT TABLE SETUP> The current page is the limit table setup page.

  • Page 89: Voltage Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference Where, <value> NR1, NR2 or NR3 data format followed by Hz, kHz, MHz. Set the measurement frequency as 20Hz. Set the measurement frequency as 300kHz (The maximum frequency of STB8827A is 300kHz, the maximum frequency of STB8827B 500kHz, the maximum frequency of STB8827C is 1MHz) For example: WrtCmd(“FREQ 1KHZ”) Set the frequency as 1000Hz.

  • Page 90: Amplitude Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference For example: WrtCmd (“CURR 10MA”) Set the measurement current as 10mA. Query syntax: CURRent? Return format:<NR3><NL^END> 7.1.5 AMPLitude subsystem commands The :AMPLitude subsystem commands are mainly used to set the auto level control (ALC) function as ON or OFF.

  • Page 91: Bias Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference The :DC:ISOLation command is used to set the DC isolation function of the 100mA/10V DC bias source as ON or OFF. The :DC:ISOLation? query returns the current status of the DC isolation function.
  • Page 92 STB8827 Series Operation Manual Chapter 7 Command Reference Where, Character 1 (49) is equal to ON. Character 0 (48) is equal to OFF. For example: WrtCmd (“BIAS:STATe 0”) Set the DC bias function as OFF. Query syntax: BIAS:STATe? Return format: <NR1><NL^END>...

  • Page 93: Function Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference 7.1.9 FUNCtion subsystem commands The FUNCtion subsystem commands are mainly used to set measurement functions, range, current/voltage monitor ON/OFF, deviation display mode, nominal setting. Command tree: FUNCtion :IMPedance CPRP CSRS LPRP LSRS :RANGe <value>...
  • Page 94 STB8827 Series Operation Manual Chapter 7 Command Reference FUNCtion:IMPedance? query returns the current function parameters. Command syntax: FUNCtion:IMPedance <function> <function> can be one of the following items. Set the function as Cp-D LPRP Set the function as Lp-Rp Set the function as Cp-Q...
  • Page 95 STB8827 Series Operation Manual Chapter 7 Command Reference Character 0 (48) is equal to OFF. For example: WrtCmd (“FUNC:IMP:RANG:AUTO ON”) Set the automatic range as ON. Query syntax: FUNCtion:IMPedance:RANGe:AUTO? Return format: <NR1><NL^END> The FUNCtion:Source MONitor:VAC command is used to set the voltage monitor ON or OFF.
  • Page 96 STB8827 Series Operation Manual Chapter 7 Command Reference ABSolute FUNCtion:DEV<n>:MODE PERCent Where, ABSolute Absolute value deviation display PERCent Percent deviation display Real value display Where, <n> is Character 1 (49) is equal to the nominal value of primary parameter. Or character 2 (50) is equal to the nominal value of the secondary parameter.

  • Page 97: List Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference primary and secondary parameters. For example: WrtCmd (“FUNC:DEV1:REF:FILL”) 7.1.10 LIST subsystem commands The LIST subsystem commands are mainly used to set the list sweep function, sweep points, sweep mode, sweep limits. Command tree: LIST :FREQuency <sweep point>[,<sweep point>...
  • Page 98 STB8827 Series Operation Manual Chapter 7 Command Reference NOTE: HZ(hertz) is the suffix unit, MAHZ and MHZ is MHz (1E6 Hz). Query syntax: LIST:FREQuency? Return format: <NR3>, [,<NR3>*]<NL^END> The LIST:VOLTage command is used to clear the original voltage of the each sweep point and reset the voltage.
  • Page 99 10mA, 20mA, 30mA and 40mA. Query syntax: LIST:BIAS:CURRent? Return format: <NR3>[,<NR3>*]<NL^END> NOTE: STB8827 series instrument has installed a 10V/100mA internal DC bias current source. If 1A DC source is required, please install an external source. STB8827 can be used with TH1778 DC Bias Source (providing DC current from 0 to 20A and 120A can be reached at most).
  • Page 100 STB8827 Series Operation Manual Chapter 7 Command Reference The LIST:MODE command is used to set the list sweep mode. The LIST:MODE? query returns the current list sweep mode. Command syntax: SEQuence LIST:MODE STEPped Where, SEQuence means sequential mode. STEPped means single step mode.

  • Page 101: Aperture Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference 7.1.11 APERture subsystem commands The APERture subsystem commands are mainly used to set the measurement speed, average times used in measurement. The APERture? query returns the current measurement speed, average times. Command syntax:...

  • Page 102: Fetch? Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference TRIGger:SOURce? query returns the current trigger source mode. Command syntax: INTernal TRIGger:SOURce EXTternal HOLD Where, INTernal The default trigger mode. EXTernal Triggered by HANDLER interface. Triggered by RS232C interface or GPIB interface HOLD Triggered by pressing TRIGGER.
  • Page 103 STB8827 Series Operation Manual Chapter 7 Command Reference FETCh [:IMP]? :Source MONitor :VAC? :IAC? :fres :acur? :bcur? The FETCh[:IMP]? query directs STB8827 to input the last measurement result to the output buffer zone. Query syntax: FETCh[:IMP]? For example: WrtCmd (“TRIG:SOUR BUS”) WrtCmd (“TRIG”)
  • Page 104 STB8827 Series Operation Manual Chapter 7 Command Reference is beyond the limits. Data Sort result Out of tolerance Bin 1 Bin 2 Bin 3 Bin 4 Bin 5 Bin 6 Bin 7 Bin 8 Bin 9 Auxiliary bin <Bin No.> format: The data displays the sorting results of the displayed bin, shown as above.

  • Page 105: Correction Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference 7.1.14 CORRection subsystem commands The CORRection subsystem commands are mainly used to set the correction function, OPEN, SHORT, LOAD. Command tree: CORRection :LENGth <value> :METHod SINGle MULTiple :OPEN :STATe ON (1) OFF (0)
  • Page 106 STB8827 Series Operation Manual Chapter 7 Command Reference The CORRection:LENGth command is used to set the correction cable length. The CORRection:LENGth? query returns the current set cable length. Command syntax: CORRection:LENGth<value> Where, <value> is 0, 1, 2 or 4 followed by M.
  • Page 107 STB8827 Series Operation Manual Chapter 7 Command Reference Query syntax: CORRection:OPEN:STATe? Return format: <NR1><NL^END> The CORRection:SHORt command is used to execute short correction for 48 preset test points (STB8827C has 48 preset test points). Command syntax: CORRection:SHORt For example: WrtCmd (“CORR:SHOR”) The CORRection:SHORt:STATe command is used to set the short correction status.
  • Page 108 STB8827 Series Operation Manual Chapter 7 Command Reference Set the function as Cp-D LPRP Set the function as Lp-Rp Set the function as Cp-Q Set the function as Ls-D Set the function as Cp-G Set the function as Ls-Q CPRP...
  • Page 109 STB8827 Series Operation Manual Chapter 7 Command Reference For example: WrtCmd (“CORR:SPOT1:FREQ 2KHZ”) Set the frequency of correction spot 1 as 2KHZ. NOTE: <value> should be ranged from 20HZ to 1MHZ (STB8827C), or return format will report errors. Query syntax: CORRection:SPOT<n>:FREQuency? Return format: <NR3><NL^END>...

  • Page 110: Comparator Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference reference of the secondary parameter. For example: WrtCmd (“CORR:SPOT1:LOAD:STAN 100.7, 0.0002”) Query syntax: CORRection:SPOT<n>:LOAD:STANdard? Return format: <NR3><NL^END> The CORRection:USE:DATA? query returns the OPEN/SHORT/LOAD correction measurement data of 201 correction spots. Command syntax: CORRection:USE:DATA?<channel number>...
  • Page 111 STB8827 Series Operation Manual Chapter 7 Command Reference COMParator [:STATe] ON (1) OFF (0) :MODE Absolute TOLerance Percent TOLerance SEQuence :TOLerance :NOMinal <value> :BIN<n> <low limit>,<high limit> :SEQuence :BIN <BIN1 low limit>,<BIN1 high limit>, <BIN2 high limit>,<BIN3 high limit>, …… ,<BINn high limit>...
  • Page 112 STB8827 Series Operation Manual Chapter 7 Command Reference PTOLerance means proportional tolerance mode. SEQuence means sequential tolerance mode. For example: WrtCmd (“COM:MODE ATOL”) Query syntax: COMParator:MODE? Return format: ATOL PTOL <NL^END> The COMParator:TOLerance:NOMinal command is used to set the nominal value (this function is valid only when the limit mode is set as deviation mode).
  • Page 113 STB8827 Series Operation Manual Chapter 7 Command Reference <BIN1 low limit> is the low limit of BIN 1 in NR1, NR2 or NR3 data format. <BIN1 high limit> is the high limit of BIN1 in NR1, NR2 or NR3 data format.
  • Page 114 STB8827 Series Operation Manual Chapter 7 Command Reference ON, the function parameter will be changed as D-Cp. In this case, the limits from BIN1 to BIN9 become the high and the low limits of D, the original secondary limits become that of Cp. That is to say, this function is to make swap comparison between the primary and the secondary parameters.

  • Page 115: Mass Memory Subsystem Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference of the bin count. Query syntax: COMParator:BIN:COUNt:DATA? Return format: <BIN1 count>, <BIN2 count>, …, <BIN9 count>, <OUT OF BIN count>, <AUX BIN count><NL^END> Where, <BIN1-9 count> is the count result of BIN1-9, in NR1 data format.

  • Page 116: Gpib Common Commands

    STB8827 Series Operation Manual Chapter 7 Command Reference GPIB Common Commands ●*RST ●*TRG ●*IDN ●*TST ●*ESE ●*SRE ●*ESR ●*STB ● *OPC ●*CLS The *RST command resets the instrument.  For example: WrtCmd (“*RST”) The *TRG command triggers the measurement and then sends the result to ...
  • Page 117 STB8827 Series Operation Manual Chapter 7 Command Reference Bit number Description Power On(PON) Bit User Request(URQ) Bit Command Error(EME) Bit Execution Error(EXE) Bit Device Dependent Error(DDE) Bit Query Error(QYE) Bit Request Control(RQC) Bit Operation Complete(OPC) Bit Query syntax: *ESE? Return format: <value><NL^END>...
  • Page 118 STB8827 Series Operation Manual Chapter 7 Command Reference Descriptions for each bit of the standard event status register Bit number Description Power On(PON) Bit User Request(URQ) Bit Command Error(EME) Bit Execution Error(EXE) Bit Device Dependent Error(DDE) Bit Query Error(QYE) Bit...

  • Page 119: Chapter 8 The Description For Handler (Optional)

    STB8827 Series Operation Manual Chapter 7 Command Reference Chapter 8 The description for Handler (optional) The STB8827 provides the Handler interface for you. The interface is mainly used for the output of the sorted result. The interface offers the communication signal and the signal for the output of the sorted result.
  • Page 120 STB8827 Series Operation Manual Chapter 7 Command Reference Control output signal  /INDEX (analog test finished signal), /EOM (test ended and the compared data effective), /ALARM (the circuit interruption) Control input signal  /EXT.TRIG (external trigger signal), /Keylock (the key lock).
  • Page 121 STB8827 Series Operation Manual Chapter 7 Command Reference /SREJ The secondary parameter is not good: the test result is not in the range of the high limit and the low limit. Not connect. /KEY LOCK When this line is effective, the keys in the front panel are locked.
  • Page 122 STB8827 Series Operation Manual Chapter 7 Command Reference ） PHI（OUT The main parameter BIN 1 BIN 2 BIN 3 BIN 4 SREJ（AUX） BIN 5 SREJ（AUX） BIN 6 BIN 7 BIN 8 BIN 9 PLO（OUT） The secondary parameter Figure 1 The /PHI, /PLO, /SREJ signal distribution for BIN comparison...
  • Page 123 STB8827 Series Operation Manual Chapter 7 Command Reference /BIN 1 /PHI /BIN 2 /PLO /BIN 3 /SREJ /BIN 4 /BIN 5 /BIN 6 /BIN 7 /KEY LOC K /BIN 8 /BIN 9 EXT.DCV1 /OUT EXT.DCV1 /AUX /ALAR M /EXT TR IG...
  • Page 124 STB8827 Series Operation Manual Chapter 7 Command Reference delay 1 measurement 2comparison 3display time time time time Time The maximum minimum T1: trigger pulse-width T2:delay time 200us Display time T3:the trigger waiting time 200us after /EOM output 1. For the measurement time, please refer to the operation manual;...
  • Page 125 STB8827 Series Operation Manual Chapter 7 Command Reference SEQ sweep mode： /INDEX is defined as the effective signal when the last sweep point of the analog test is finished. /EOM is defined as the effective signal when all the test results are effective after every list sweep task is finished.
  • Page 126 STB8827 Series Operation Manual Chapter 7 Command Reference finished. the comparison result signal is effective until /EOM is effecive. others The definition is the same to that of the comparison. /BIN1 /BIN2 /BIN3 /BIN4 /BIN5 /BIN6 /BIN7 /BIN8 /BIN9 /OUT...

  • Page 127: Electrical Feature

    STB8827 Series Operation Manual Chapter 7 Command Reference Note :(1)The setting time includes the correction ON/OFF time. (2)The comparison and display time is 4.5ms approximately. Figure 5 the time counting 8.2.2 Electrical feature As it is shown above, the signal definition for the comparison and the list sweep comparison are different.

  • Page 128: Handler Interface Board Circuit

    STB8827 Series Operation Manual Chapter 7 Command Reference on every line is set by the pull-up resistance on the HANDLER interface board. The pull-up resistance is connected to the internal voltage (+5V), or the external voltage(EXTV:+5V). The electrical feature of the DC isolation output can be divided into 2 types shown in Table 4.
  • Page 129 STB8827 Series Operation Manual Chapter 7 Command Reference EXT.DCV1 PULL-UP RESISTOR /OUT /BIN1 /BIN8 /BIN9 /AUX /PHI /PLO /SREJ COM1 STB8827 Common Figure 6 the output circuit for the comparison result The output circuit for control signal is shown in the figure 7 below.
  • Page 130 STB8827 Series Operation Manual Chapter 7 Command Reference EXT.DCV2 PULL-UP RESISTOR /ALARM /INDEX /EOM COM2 STB8827 Common Figure 7 the output circuit for control signal The input circuit for control signal is shown in the figure 8 below. EXT.DCV2 PULL-UP RESISTOR /EXT.TRG...

  • Page 131: Operation

    STB8827 Series Operation Manual Chapter 7 Command Reference 8.2.4 Operation Before you use the HANDLER function, you should ensure that your instrument has install the HANDLER interface board.The following procedure will show you how to use the interface comparison and the list sweep comparison.

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