Tonghui TH2683A Operation Manual
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Tonghui TH2683A Operation Manual

Insulation resistance meter
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  • Page 1 TH2683A Insulation Resistance Meter : : No.3, Tianshan Road, New District, Changzhou, Jiangsu （ （ ） ） ， ， （ ） ， （ （ ） ） （ ）...

  • Page 2: Table Of Contents

    TH2683A Operation Manual Ver.1.3 Contents Introduction to Instrument, Unpacking and Installing............1 Introduction to Instrument................. 1 Unpacking ......................1 Power Connection ....................1 Fuse........................2 Environment ....................... 2 Use of Test Fixture ....................2 Warm‐up......................2 Other Features....................2 Introduction to Front and Rear Panels................3 Introduction to Front Panel ................
  • Page 3 TH2683A Operation Manual Ver.1.3 3.2.8 OPEN CLR ......................14 3.2.9 Average......................15 3.2.10 MEAS DISP ......................15 <PICKOUT SETUP> .................... 16 3.3.1 PICK FUNC......................16 3.3.2 PICK ITEM......................17 3.3.3 LOLI ONE ......................17 3.3.4 BEEP SET ......................17 3.3.5 Steps for BIN Disp .....................
  • Page 4 Install the Driver ....................35 USBVCOM Virtual Serial Port................36 6.4.1 System Configuration ..................36 6.4.2 Installing Driver....................36 SCIP Command Reference....................38 TH2683A Subsystem Commands..............38 7.1.1 DISPlay Subsystem Commands................. 38 7.1.2 FUNCtion Subsystem Commands ..............39 7.1.3 DISCharge Subsystem Commands ..............44 7.1.4...
  • Page 5 TH2683A Operation Manual Ver.1.3 7.1.6 COMParator Subsystem Commands ..............46 7.1.7 SYSTem Subsystem Commands................ 50 7.1.8 Mass MEMory Subsystem Commands ............. 51 GPIB Common Comamnds ................51 Handler Interface ......................53 Package Contents and Warranty..................56 Package Contents ..................... 56 Marks ........................

  • Page 6: Introduction To Instrument, Unpacking And Installing

    (especially the capacitance), dielectric material, equipments, wires, cables, etc. TH2683A is provided with sorting output and external single pulse signal input interface, making it easy for pipeline operation. The quipped communication interface can achieve the off‐site operations of all functions of the instrument through microcomputer.

  • Page 7: Fuse

    TH2683A Operation Manual Ver.1.3 1.4 Fuse The fuse is a standard configuration, so use the included custom fuse please. 1.5 Environment Do not store or use the instrument where it could be exposed to many dusts, great vibration, direct sunshine and corrosive gas.

  • Page 8: Introduction To Front And Rear Panels

    TH2683A Operation Manual Ver.1.3 2) Introduction to Front and Rear Panels This chapter will describe the basic operation of TH2683A. Before using the instrument, please read this chapter carefully. 2.1 Introduction to Front Panel Figure 2‐1 shows the front panel of TH2683A.

  • Page 9: Introduction To Rear Panel

    There are four arrow keys: up, down, left and right arrow keys. 11) Trademark and Model Show instrument trademark and model. 12) POWER It is the power switch. 2.2 Introduction to Rear Panel Figure 2‐2 shows the rear panel of TH2683A. RS-232C FOOT.C RATING FUSE 110V/60Hz...

  • Page 10: Display Zone

    PC can remotely control TH2683A through USB DEVICE. 2.3 Display Zone TH2683A adopts 24‐bit 4.3‐inch LCD touch screen with a resolution of 480*272. The display screen is divided into the following zones, as shown in figure 2‐3. Figure 2‐3 Display zone Page name This zone shows the current page name.

  • Page 11: Introduction To Buttons On Front Panel

    Press the [SYSTEM] button to enter into the <SYSTEM SETUP> page; the setup items of system can be changed on this page. 2.5 Simple Operation Simple operation steps for TH2683A: Use [MEAS], [SYSTEM] or [FILE] or soft keys to enter into the page required to enter. (Refer ...

  • Page 12: Starting Up

    Figure 2‐4 shows the boot screen of TH2683A, indicating product information such as instrument trademark, model and version.
  • Page 13 TH2683A Operation Manual Ver.1.3 Figure 2‐5 TH2683A Main Display...

  • Page 14: Basic Operation

    TH2683A Operation Manual Ver.1.3 3) Basic Operation 3.1 <MEAS DISP> Touch the screen or press down [MEAS] and then the <MEAS DISP> page will be displayed on the screen shown as figure 3‐1. Figure 3‐1 Measure Display The following functions can be achieved by touching the related key in soft key area on this page.

  • Page 15: Measurement Functions

    OUTP VOLT.  MONI VOLT.  MEAS MODE.  INTER RES.  3.1.1 Measurement Functions Measurable parameters on TH2683A are as follows: Primary Parameters (Insulation resistance)  (Leakage current)  Secondary Parameter (Time count value of each procedure)  The measurement results of primary parameters and secondary parameter are respectively displayed in three lines in the form of large characters.

  • Page 16: Outp Volt

    The commonly used several default voltage points of the instrument are: 1V, 10V, 25V, 50V, 75V, 100V, 125V, 150V, 200V, 250V, 500V (TH2683B), 750V (TH2683A), 1000V (TH2683A). ...

  • Page 17: Meas Mode

    The commonly used several default voltage points of the instrument are: 1V, 10V, 25V, 50V, 75V, 100V, 125V, 150V, 200V, 250V, 500V (TH2683B), 750V (TH2683A), 1000V (TH2683A). MEAS MODE 3.2.2...

  • Page 18: Meas Speed

    TH2683A Operation Manual Ver.1.3 MEAS SPEED 3.2.4 This function is used for setting the measurement speed of the instrument. Steps for setting the MEAS SPEED: Touch the corresponding zone. The following items will be displayed in the soft key zone.

  • Page 19: Cont Chec

    This function is used for setting the contact check of the instrument. As the unique contact check function of TH2683A/TH2683B, this function can well identify the contact performance of components for capacitance, cable and other capacitive materials and reduce the occurring of error test.

  • Page 20: Average

    TH2683A Operation Manual Ver.1.3 then affect the accuracy of measurement results. Average 3.2.9 This function is used for setting the test average times of the instrument. The set range is 1~199. Operation Procedures One for setting the CHAR TIME: 1. Touch this key to select this option and then the color of this option will become the color of the cursor.

  • Page 21: Pickout Setup

    Touch the soft key PICKOUT SETUP to enter into the <PICKOUT SETUP> page as shown in figure 3‐3. Figure 3‐3 PICKOUT SETUP The comparator functions of the instrument can be set on this page. TH2683A can set three groups of limit values for primary parameters. The function introduction of <PICKOUT SETUP> page PICK FUNC 3.3.1...

  • Page 22: Pick Item

    TH2683A Operation Manual Ver.1.3 PICK ITEM 3.3.2 This function is used for selecting the pick item of the instrument. Steps for PICK ITEM: Touch the corresponding zone. The following items will be displayed in the soft key zone. CURR ...

  • Page 23: Steps For Bin Disp

    TH2683A Operation Manual Ver.1.3 It is used for setting the PICKOUT BEEP as OFF. Touch the corresponding key in soft key zone to select the relevant function. NOTE: The BIN ONE enjoys the top priority in the three bins, followed by BIN TWO and BIN THREE.

  • Page 24: Steps For Outp Resu

    TH2683A Operation Manual Ver.1.3 Steps for OUTP RESU 3.3.7 Touch the corresponding zone. The following items will be displayed in the soft key zone. LEVEL  It is used for setting the OUTP RESU as LEVEL. PULSE  It is used for setting the OUTP RESU as PULSE.

  • Page 25: Operation Process

    TH2683A Operation Manual Ver.1.3 Figure 3‐4 Test connection program NOTE:  There is voltage output in HV (‐) terminal. Please connect the DUT in discharge condition. Beware of electric shock.  Be sure to connect the DUT with polarity (electrolytic condenser, etc.) according to the positive and negative terminals shown in the program, otherwise it may result in the explosion of components.

  • Page 26: Range Selection

    TH2683A Operation Manual Ver.1.3 Range Selection 3.4.3 There are six range resistances in TH2683A. They constitute six range segments (refer to figure 3‐1 below). Range Input Internal Resistance 1(1mA) 1kΩ  2(100uA) 10kΩ  3(10uA) 100kΩ  4(1uA) 1MΩ  5(100nA) 10MΩ  6(10nA) 100MΩ ...

  • Page 27: System Setup And File Manage

    TH2683A Operation Manual Ver.1.3 4) System Setup and File Manage 4.1 System Setup Press [SYSTEM] to enter into the <SYSTEM SETUP> page as shown in figure 4‐1. Figure 4‐1 System Setup On this page, the following functions can be set: BEEPER, PASSWORD, BUS MODE, LANGUAGE, TRIGER, KEYSOUND, BAUD RATE, HANDLER VCC AND TIME.

  • Page 28: Bus Mode

    TH2683A Operation Manual Ver.1.3 Steps for setting the password: Touch PASSWORD, the following soft key zone will be displayed:  Touch this key to turn off the password protection function. This function would be disabled only when the preset password is correctly input.

  • Page 29: Keysound

    TH2683A Operation Manual Ver.1.3 Touch this soft key to set the language as Chinese. You can touch soft keys to set corresponding functions. KEYSOUND 4.1.5 This function is used to control the key sound when the users touch the touch screen and press the machinery keys.

  • Page 30: Handler Vcc

    Touch this key and then the instrument will decrease rapidly by 5. 4.2 <File Manage> TH2683A series can save parameters that are set by user to the internal non‐volatile memory in the file format. User can load the file to use these parameters instead of resetting.

  • Page 31: Structure Of File Folder/File In A U Disk

    TH2683A Operation Manual Ver.1.3 Introduction to Methods and Applications of Save The table below shows the applicable save methods and applications: Table 4‐1 Methods and Applications of Save Save method Recall Application Type File format *.STA Configuration save Save the current configuration to (internal Flash) internal Flash.
  • Page 32 U disk. If the U disk memory exceeds 512M, it is recommended to use FAT32 standard to format the disk. 3. Before a U disk is connected to TH2683A, you are recommended to save the data on it and Tonghui will not be liable for the data loss.
  • Page 33 TH2683A Operation Manual Ver.1.3 Figure 4‐3 internal file page External file page is shown in figure 4‐4 below: Figure 4‐4 external file page Four files’ information will be displayed in the internal file page or the external file page, including file names and time of being saved.
  • Page 34 U disk. Select  Touch “Select”, the file the cursor locates will be selected. TH2683A can simultaneously copy several files to a U disk. Touch “Select” once again, the selected file will be cancelled from selection. Save Measurement Results In the “MEAS DISP”...

  • Page 35: Performance Index

    TH2683A Operation Manual Ver.1.3 5) Performance Index 5.1 Measurement Function 5.1.1 Measurement Parameters and Notations R：Resistance I: Leakage current Range 5.1.2 Resistance Mode: AUTO, MANU (HOLD, UP, DOWN) Trigger 5.1.3 Manual, external, bus Manual: Press the “TRIGGER” button on the panel, the instrument will test a DUT once and display the result.

  • Page 36: Display Digits

    Correct to 0.1s 5.2 Test Signal Output Voltage Range 5.2.1 Max. output DVC range of TH2683A test terminal: 1 – 1000V. Max. output DVC range of TH2683B test terminal: 1 – 500V. Output Voltage Accuracy 5.2.2 Voltage ≥ 10V: 1% ± 1V Voltage <...

  • Page 37: Basic Accuracy For Resistance Measurement

    TH2683A Operation Manual Ver.1.3 repeatability and correction interpolation error. Checking the measurement accuracy should be taken under the following circumstances: a． Warm‐up time should be more than 30 minutes. b． Correctly open the output terminal and perform zero clearing by pressing the start key on the MEAS SETUP page.

  • Page 38: Remote Control

    EIA in 1969, which rules to send one bit in a data line every time. As most serial interfaces, the serial interface of TH2683A is also not strictly based on RS‐232 standard but only uses the smallest subset of this standard. The signals are listed in the following table.

  • Page 39: Scpi (Standard Commands For Programmable Instruments)

    6.3 USBTMC Remote Control System USB (Universal Serial Bus) remote control system controls the instrument through the USB interface. This connection conforms to USBTMC‐USB488 and USB2.0 protocols. System Configuration 6.3.1 Connect USB interfaces on PC and TH2683A through a USB cable.

  • Page 40: Install The Driver

    TH2683A Operation Manual Ver.1.3 Install the Driver 6.3.2 When TH2515 is first connected to a PC through a USB cable, the prompt information –Found New Hardware will show on the right bottom of the computer desktop, as is shown below: Figure 6‐3 Procedure 1 of Installing USB Driver...

  • Page 41: Usbvcom Virtual Serial Port

    When “USBVCOM” is selected, the USB interface can be configured as a virtual serial port (VCom). System Configuration 6.4.1 Connect PC and TH2683A to the USB interface through a USB cable. Installing Driver 6.4.2 Methods of installing USBCDC driver are the same with that of installing USBTMC driver. When the installation of driver is finished, user can see “usb VCom port”...
  • Page 42 TH2683A Operation Manual Ver.1.3 Now, usb VCom port acts as a serial port. When PC has no serial port, the communication software based on this serial port can be used as USB virtual serial port.

  • Page 43: Scip Command Reference

    1. Data Conventions of This Manual NR1 ：integer, for example:123 NR2 ：fixed number, for example: 12.3 NR3 ：floating number, for example: 12.3E+5 NL ：CR character，integer: 10 ^END：EOI (end) signal of IEEE‐488 bus. 7.1 TH2683A Subsystem Commands ●DISPlay ●TRIGger   ●COMParator ●DISCharge   ●SYSTem ●FUNCtion ●FETCh? ...

  • Page 44: Function Subsystem Commands

    TH2683A Operation Manual Ver.1.3 Set the display page to (internal) file list. FLISt   For example: WrtCmd(“DISP:PAGE MEAS”); Set the display page to measurement display. Query syntax: DISPlay:PAGE? Return format: <page name><NL^END> <page name> refer to the above set value. FUNCtion Subsystem Commands 7.1.2...
  • Page 45 TH2683A Operation Manual Ver.1.3 The :CZERo ON command is used to execute open clear zero of the instrument, “?” can query the current zero clearing passes or fails. If this zero clearing passes, the zero base used in this measurement is obtained from this open zero clearing; if this zero clearing fails, the zero base used in this measurement is factory default.
  • Page 46 TH2683A Operation Manual Ver.1.3 Query syntax: FUNCtion: MMODe ? SINGle Return Format: <NL^END> CONTinuous The :FUNCtion: MMODe? query returns to the current measurement mode of the instrument. The : MSPeed command sets the measurement speed of the instrument. The :FUNCtion:MSPeed? query returns to the measurement speed of the instrument.
  • Page 47 TH2683A Operation Manual Ver.1.3 Where, <value> is any real value among the charge time range (0‐999.0s) of the instrument (correct to 0.1s). For example: WrtCmd(“FUNCtion:CTTM 12.5”); set the charge time of the instrument as 12.5s. Query syntax: FUNCtion: CTTMe? Return Format: <value><NL^END>...
  • Page 48 TH2683A Operation Manual Ver.1.3 The :FUNCtion:AVERage? query returns to the current measurement average times of the instrument. Command syntax: FUNCtion: AVERage <value> Where, <value> is any integer value among the average times range (1‐999) of the instrument. For example: WrtCmd(“FUNCtion:AVERage 12”); set the average times of the instrument as 12.

  • Page 49: Discharge Subsystem Commands

    TH2683A Operation Manual Ver.1.3 Query syntax: FUNCtion:MDISplay? Return format: <NL^END> DISCharge Subsystem Commands 7.1.3 DISCharge [:GO] Set the instrument to discharge. TRIGger Subsystem Commands 7.1.4 The TRIGger subsystem commands set the instrument trigger source and the delay time after triggering, and triggers instrument measurement.

  • Page 50: Fetch? Subsystem Commands

    <NL^END> HOLD FETCH? Subsystem Commands 7.1.5 The FETCh? Subsystem commands are used to get the measurement result of TH2683A. Command Tree: The [:IMP]? query returns TH2683A’s last measurement result to its output buffer. Query syntax: FETCh[:IMP]? For example, WrtCmd (“TRIG:SOUR BUS”);...

  • Page 51: Comparator Subsystem Commands

    Data format: <insulation resistance>, <leakage current>, <ultralimit> Ultralimit: downlap between the range onlap AUTO command makes TH2683A to send each measurement result to its output buffer automatically. Command syntax：FETCh:AUTO For example: WrtCmd(“FETC:AUTO ON”); The SMONitor command querys the monitor voltage.
  • Page 52 TH2683A Operation Manual Ver.1.3 The :FUNCtion command is used to set the pickout function as ON or OFF. It can query the current pickout function state. Command syntax: ON(1) COMParator:FUNCtion OFF(0) Where, Character 1 (integer:49) means ON. Character 0 (integer: 48) means OFF.
  • Page 53 TH2683A Operation Manual Ver.1.3 RESistance set the pickout item as RESIS For example: WrtCmd(“COMP:ITEM CURR”) Query syntax: COMParator:ITEM? Return format: CURRent <NL^END> RESistance The :Current:BIN<value> <low limit>,<high limit> and :RESistance:BIN<value> <low limit>,<high limit> commands are usd to set the high limit and low limit when the pickout item is set as CURR or RESIS.
  • Page 54 TH2683A Operation Manual Ver.1.3 BDISplay? query returns to the current bin display state. Command syntax: ON(1) COMParator: BDISplay OFF(0) Where, Character 1 (integer:49) means ON. Character 0 (integer: 48) means OFF. For example: WrtCmd(“COMP:BDIS ON”) Query Syntax: COMParator: BDISplay? Return format: <NR1><NL^END>...

  • Page 55: System Subsystem Commands

    TH2683A Operation Manual Ver.1.3 The :PWIDth command is usd to set the Handler bin output pulse width of the instrument. The :PWIDth? query returns to the current Handler bin output pulse width. Command syntax: COMParator: PWIDth <value> Where, <value> is any integer value among the range (1‐25ms) of Handler bin output pulse width.

  • Page 56: Mass Memory Subsystem Commands

    The *TRG command triggers the measurement and then sends the result to the output buffer. Command syntax: *TRG For example: WrtCmd(“*TRG”); NOTE: ”*trg” will be valid when :INIT:CONT ON and trig:sour bus commands are enabled.  The *IDN? query returns TH2683A’s identification string. Query syntax: *IDN? Return format: <manufacturer>,<model>,<firmware><NL^END>...
  • Page 57 TH2683A Operation Manual Ver.1.3 Where, <manufacturer> Name of Manufacturer ( Tonghui) <model> Instrument Model (TH2683A/TH2683B) <firmware> Firmware Version (Version 1.0.0) For example: WrtCmd(“*IDN?”);...

  • Page 58: Handler Interface

    Ver.1.3 8) Handler Interface TH2683A Insulation Resistance Meter equips with a Handler interface which is mainly used to output the sorting result. When the instrument is applied to an automatic component sorting test system, this interface will output the handshake signal and the sorting result output signal.
  • Page 59 TH2683A Operation Manual Ver.1.3 Programmable Handler sequence chart (OUTP RESU is set as PULSE) Programmable 1ms~25ms...
  • Page 60 TH2683A Operation Manual Ver.1.3 Time Min. value Max.value Trigger pulse width ‐‐‐  Tip time when measurement ended (EOC) 10ms ‐‐‐  Interval time between two triggers 1 Sampling Time ‐‐‐  Sampling Time = above 30ms FAST   Above 60ms SLOW Electrical Characteristics...

  • Page 61: Package Contents And Warranty

    TH2683A Operation Manual Ver.1.3 9) Package Contents and Warranty 9.1 Package Contents Following items should be contained in the package. TH2683A series instrument Test cable (TH26004B) Three‐Wire power line Fuse (1A/2A) 1 of each Operation Manual Manufacturer Certificate Test Report Warranty Card Verify that you have received all above items and any optional accessories you may have ordered.

  • Page 62: Shipping

    This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs. Tonghui will, without charge, repair or replace, at its option, defective product or component parts.

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