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HOPETECH HT3542-12H User Manual

Dc resistance meter
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User's Manual
Multi-channel Series
HT3542-12H, HT3542-24H
DC Resistance Meter
2021-01-19
Version V2.4

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Summary of Contents for HOPETECH HT3542-12H

  • Page 1 User’s Manual Multi-channel Series HT3542-12H, HT3542-24H DC Resistance Meter 2021-01-19 Version V2.4...

  • Page 3: Table Of Contents

    Content Introduction .................... 1 Checking Packing Contents ..............2 Safety Notes ................... 3 Chapter1 Overview ................7 1.1 Introduction ................7 1.2 Characteristics ................. 8 1.3 Name and Operation Summary of Each Part ....9 1.4 Dimension ................13 1.5 Screen Composition ............14 Chapter 2 Preparation before testing ........
  • Page 4 3.9 Display Digit Setting ............42 3.10 Test Current Setting ............43 3.11 Contact Detection Settings ..........45 3.12 Multi-channel Settings ............. 46 Chapter 4 Comparator Settings ..........49 4.1 Comparator Function ............49 4.1.1 Comparison Result Signal Output Method ..50 4.2 Comparison Mode ...............
  • Page 5 Chapter 7 System Settings ............72 7.1 Button Sound Setting ............72 7.2 Self-calibration Function ............ 73 7.3 Power Frequency Setting ........... 74 7.4 Radio Mode Setting ............. 75 7.5 Communication Mode ............76 7.5.1 RS232 ................76 7.5.2 LAN Communication Protocol ....... 78 7.6 USB interface .................
  • Page 6 9.2 Definition of multi-channel test lines ......103 9.3 Internal circuit composition ..........105 Chapter 10 Parameter ............... 106 10.1 General Parameters ............106 10.2 Accuracy ................107...

  • Page 7: Introduction

    Introduction Thank you for purchasing 3542 precision resistance meter. This manual aims to explain the operating steps, precautions and maintenance of the instrument. To obtain maximum performance from this product, please read this manual first before operation, and keep it safe for future reference. Registered trademarks Windows and Excel are registered trademarks of Microsoft Corporation in the United States or other countries.

  • Page 8: Checking Packing Contents

    Checking Packing Contents When receiving instrument, please check carefully to ensure that the instrument is not damaged during transit. In addition, special inspections of accessories, panel switches and connectors are required. If the instrument is found to be damaged or it fails to operate as described in the user manual, please contact us.

  • Page 9: Safety Notes

    Safety Notes The instrument is designed to comply with the IEC 61010 safety standard and has been thoroughly tested for safety before shipment from the factory. However, if it is used improperly, it may cause injury or death and damage the instrument.
  • Page 10 Precautions for operation Using Environment ● Operating temperature and humidity: 0 to 40 ° C, below 80% RH (no condensation) ● Temperature and humidity range to ensure accuracy: -10-50℃，below 80% RH (no condensation) ● To avoid malfunction or damage to the instrument, do not place the tester in the following situations: High temperature places with direct sunlight ➢...
  • Page 11 Before using the instrument, make sure that the AC power cord and test lines are well insulated and the conductor is not exposed. Otherwise, there may be a risk of electric shock during use. To ensure personnel safety, please contact our company in a timely manner to replace the equipment Handling Precautions...
  • Page 12 To prevent electric shock accident, do not short-circuit the top of the test line and the line with voltage. When testing, for your safety, please use the instrument's own test line option. To avoid damaging test lines, do not bend or stretch the test lines.

  • Page 13: Chapter1 Overview

    dgt. (Resolution) The minimum display unit of a digital tester, that is, the input value that causes the digital display to show a “1”. Chapter1 Overview 1.1 Introduction The basic accuracy of HT3542 DC resistance tester is 0.01%, and the measurable range is 0.1μΩ～10MΩ. With high- speed testing line anomaly detection function and extremely short measurement cycle.

  • Page 14: Characteristics

    external control, etc., which can be used for various situations such as development and production lines. The precision resistance multi-channel scanning tester requires testing of PCB vias and wiring in fields such as aerospace and automotive electronics, and can scan and switch at a speed of 2ms per channel.

  • Page 15: Name And Operation Summary Of Each Part

    □ Powered by ● 100~240V power supply ● Power frequency 50/60Hz 1.3 Name and Operation Summary of Each Part Front Panel Rear Panel...
  • Page 16 Side View Bottom...
  • Page 17 Keys Keys Description Function key F1 Function key F2 Function key F3...
  • Page 18 Function key F4 Function key F5 Function Esc key Function confirmation key [Page Switch] Switches [Measurement Page] <-> [Comparator Page] <-> [Setup Page] <-> [Panel Page] <-> [System Page] <-> [I/O Page] Comparator on/off button Lock key Short press [LOCK] key to lock the current page and the other keys get invalid.

  • Page 19: Dimension

    [HOLD] key Hold the current measurement value during the test [Trigger] key Single trigger test of the instrument in manual trigger mode [Direction] key Select menu items or set values 1.4 Dimension...

  • Page 20: Screen Composition

    1.5 Screen Composition Measurement Display Comparator Display...
  • Page 21 Measuring Parameter Setting Display Parameter Saving Display System Parameter Setting Display...

  • Page 22: Chapter2 Preparation Before Testing

    I/O Setting Display Chapter2 Preparation before testing 2.1 Measurement Process Overview The instrument remains in the power off state, please prepare for testing according to the following steps. 1. Turn off the instrument and connect the test lines.
  • Page 23 2. Plug AC power cord into the mains outlet Ensure that the power cord is well grounded, which is conducive to the stability of the test. 3. Turn on the power at back of instrument. At the time being, internal power of the instrument has been turned on and the instrument is in standby mode.
  • Page 24 When instrument is in the standby mode, POWER button at panel light is red, long press POWER button, the power is turned on, the screen is lit, and light of button at panel turns green. 5. Setting test parameters Trigger mode setting，INT/EXT Resistance range setting，20mΩ/200mΩ...
  • Page 25 6.Start to test 7.Complete test, turn off the power...

  • Page 26: Pre-Measurement Inspection

    2.2 Pre-measurement Inspection Before using the instrument, inspect it to verify that no damage has occurred during storage or transportation and it operates normally. If you find any damage, contact us. Instrument and peripheral checking Inspection item Action Is there any damage or a crack If any damage is found, do in the instrument? Are the not use it.

  • Page 27: Confirm The Measured Object

    When power is turned on, does If the screen does not the entire display turn on? the behave like this, the model name and measurement instrument may be screen are displayed normally? damaged internally. Return it for repair. 2.3 Confirm the Measured Object Please change the measurement conditions appropriately according to the object to be measured to reliably measure the resistance.

  • Page 28: Connection Method Of Test Line

    conductive rubber Other, common resistance measurement High heaters, wires, welded parts Temperature rise test motor, choke, High Δ T transformer *1 When the rated power has a margin, select High *2 When the temperature dependence of the measured object is large, use temperature compensation *3 When there is margin for applying voltage, select ON 2.4 Connection method of test line...
  • Page 29 Test lines connection 1. 9344 Test clip type test line 2. 9363-B Test probe type test line...

  • Page 30: Chapter 3 Basic Settings

    Chapter 3 Basic Settings 3.1 Setting Test Range The range setting is divided into manual range and auto range. When auto range is selected, the instrument automatically selects an appropriate range to test based on the value of the measured resistance. 3.1.1 Manual Range Setting Under measurement state, press [F1] or [F2] to switch the range.

  • Page 31: Setting Measurement Speed

    Under measurement state, press [F3] to switch to auto range. Note: If the range is changed while the auto range is • ON, the auto range is automatically canceled and is changed to manual range. If the comparator function is set to ON, the range •...

  • Page 32: Temperature Setting

    The measurement speed is divided into four levels: fast, medium, slow 1, and slow 2. Press [F4] to switch. The test accuracy of medium speed, slow speed 1 and slow speed 2 is higher than fast speed and is not easily affected by the external environment.

  • Page 33: Temperature Compensation

    temperature is displayed. If temperature probe is not connected, temperature measurement is not possible. When the TC or Δ T is not used, there is no need to connect a temperature probe. If users do not want to display the temperature, please switch the display. 3.3.1 Temperature Compensation Resistance value is converted to reference temperature for display.
  • Page 34 [F3] to set the reference temperature and temperature coefficient. 3. Related values setting Press [F3] to enter reference temperature and temperature coefficient setting page, press [F1] to enter setting, use left and right cursor keys to move the cursor to the position to be set, and use the up and down cursor keys to change value.

  • Page 35: Temperature Conversion

    t ： Actual resistance value t0 ： compensation resistance value ： Measuring temperature 0： Reference temperature （setting range from -10℃~99.9℃） α t0： Temperature coefficient at t0 of the material being tested （setting range from -9999ppm/℃~9999ppm/℃） Note: When “t.error” is displayed, it indicates that the temperature probe is not connected;...
  • Page 36 When performing temperature conversion, connect temperature probe to TC terminal on rear panel of the instrument. The temperature rise value can be converted according to the principle of temperature conversion, and the temperature at time of energization stop can be estimated. 1.
  • Page 37 R1, initial temperature T1, and inverse of the temperature coefficient (K) at 0 °C. Press [F1] input key to start setting, use left and right cursor keys to move cursor to the position to be set, and use up and down cursor keys to change the value. Setting range: Initial resistance ：0.001Ω...
  • Page 38 The following values are recommended in the JIS C4034-1 standard. • Copper：k =235 • Aluminum：k =225 Temperature conversion test example： ① Make motor and coil fully adapt to room temperature, then measure resistance value (R1) ambient temperature (t1) before power-on and input value into the instrument.

  • Page 39: Average Number Of Times Setting

    Average method Free measurement (D1+D2)/2 (D2+D3)/2 (D3+D4)/2 (moving average) Non free measurement (D1+D2)/2 (D3+D4)/2 (D5+D6)/2 (simple average) 3.4 Average Number of Times Setting Average multiple measurement values and display them. By using this function, the jumping of measured values can be reduced while also suppressing interference.

  • Page 40: Measurement Delay Setting

    2. Select relevant menu items Press the [F2] key to increase the average number of times, while press the [F3] key to decrease the average number of times. The maximum average number of times is 10, and the minimum is 2. 3.5 Measurement Delay Setting Set the waiting time and adjust the measurement stability time after...
  • Page 41 Delay settings can be selected from two types: preset (internal fixed value) and any set value. (1) The preset (internal fixed value) values may vary depending on the range or OVC function. Test current Delay(unit Range OVC: OFF OVC: ON 20 mΩ...
  • Page 42 2. Select relevant menu items 3. Press the [F2] key to input the delay time Approximate calculation criteria for the delay time of inductive loads • When the measurement current is applied to the inductive load and it takes some time to stabilize, and cannot be measured in the initial state (preset), please adjust the delay.

  • Page 43: Auto Hold Settings

    Please set the delay time approximately 10 times the calculated value as the standard, ensuring that the reactance components (inductance, capacitance) do not affect the measured value. L ： Inductance of the tested object R ： Resistance of the tested object+ wire resistance+ contact resistance I ：...

  • Page 44: Abnormal Mode Setting

    About Auto Hold Release: Moving the test line away from the tested object and making it contact the tested object again will automatically release the hold. Changing the range and measurement speed or pressing [ESC] can also release the hold. If the hold is released, the HOLD indicator light will turn off.
  • Page 45 Example of over range detection: Measurement Example Overflow Detection When overrange Measure 23 kΩ at a range of 20 kΩ When the deviation 500 Ω (+2400%) measured at a standard value display of the measured value (% display) of 20 Ω exceeds the display range (999.999%) When the result of clear...

  • Page 46: Ovc (Thermoelectric Compensation) Function Setting

    • Place the SOURCE A and SOURCE B probes in an open circuit state • Tested object disconnection, etc. (open circuit components) • Broken wiring and poor connection in SOURCE A and SOURCE B wiring Attention: • If the resistance of the SOURCE wiring exceeds the following values, a current anomaly will occur, making it impossible to measure.
  • Page 47 After the OVC function is turned on, the upper right corner of the interface will display Based on the measured value RP when flowing the measured current and the measured value RZ when not flowing the measured current, display RP-RZ as the true resistance value. ：Thermoelectric potential, potential is generated when any metal comes into contact, and the magnitude of the potential is related to temperature.

  • Page 48: Display Digit Setting

    Attention: • When the bias voltage compensation function is ON (OVC indicator light is on), the display update of measured values will slow down. • When measuring low current resistance as OFF, the bias voltage compensation function can be set to ON in the range of 20 mΩ...

  • Page 49: Test Current Setting

    2. Select relevant menu items [F1] Key: 6 bits (1,000,00dgt.) (initial setting） [F2] Key: 5 bits (100,00dgt.) 3.10 Test Current Setting 1. Select parameter setting page 2. Select relevant menu items...
  • Page 50 Power of resistance value× （measuring current） applied to the tested object，when worrying about the following issues due to measuring current, please set the measuring current to low current. • The measured object is fusing • The measured object heats up and the resistance value changes •...

  • Page 51: Contact Detection Settings

    22 μW 20 Ω 10 mA 2.2 mW 1 mA 220 μW 200 Ω 10 mA 22 mW 1 mA 2000 Ω − 1 mA 2.2 mW 500 μA 20 kΩ − 5.5 mW 50 μA 550 μW 200 kΩ −...

  • Page 52: Multi-Channel Settings

    CE A - SENSEA and SOURCE B - SENSE B. When the resis tance value exceeds the threshold, it is judged as a conta ct error. When a contact error occurs, display CONTACT TERM.A 、 CONTACT TERM.B. Do not perform comparator j udgment on measured values.
  • Page 53 Press [F1] OFF to perform single channel testing, and press [F2] ON to activate multi-channel testing; 3.【ESC】Return to the multi-channel test page 4. Test completion page...

  • Page 55: Chapter 4 Comparator Settings

    Chapter 4 Comparator Settings 4.1 Comparator Function Before using the comparator function, when exceeding the range (displaying OverRng) and when testing abnormally (displaying CONTACT TERM or ------), the judgment display of the comparator is as follows. comparator judgment display Measurement value display （COMP indicator light）...

  • Page 56: Comparison Result Signal Output Method

    • If the ΔT or multi gear position sorting function is set to ON, the comparator function automatically changes to OFF. • During the use of the comparator function, the range cannot be changed, please change the range in the comparator settings page.

  • Page 57: Comparison Mode

    2. Beep alarm 2.1 Select comparator setting page 2.2 Select relevant menu items 3. External IO port, signal output (see Chapter 9) 4.2 Comparison Mode 4.2.1 Absolute Value Mode 1. Select comparator setting page...
  • Page 58 2. Select relevant menu items 3. Upper limit setting Press the [F1] input key, use the left and right cursor keys to move the cursor to the desired position, and use the up and down cursor keys to change the value. 4.
  • Page 59 down cursor keys to change the value. To interrupt the setting, press the [ESC] key to return to the original screen. [Comparison of upper and lower limits] Example： Absolute upper lower PASS FAIL value limit limit mode value value compariso 10Ω≤...

  • Page 60: Percentage Mode

    4.2.2 Percentage Mode 1. Select comparator setting page 2. Select relevant menu items 3. Standard value setting Press the [F1] input key, use the left and right cursor keys to move the cursor to the desired position, and use the up and down cursor keys to change the value.

  • Page 61: Multi-Position Sorting Function

    4. Deviation value setting Press the [F1] input key, use the left and right cursor keys to move the cursor to the desired position, and use the up and down cursor keys to change the value. To interrupt the setting, press the [ESC] key to return to the original screen.

  • Page 62: Sorting Function Turn On Settings

    results. All items that are not included in the BIN are judged as NG. Sorting results can also be output through the EXT I/O terminal. 4.3.1 Sorting Function Turn on Settings 1. Select parameter setting page 2. Select relevant menu items Attention: •...

  • Page 63: Sorting Function Range Setting

    4.3.2 Sorting Function Range Setting On the multi gear sorting page, press the up and down keys to select the mode and change the range. Range： 20mΩ ↔ 200mΩ ↔ 2000mΩ ↔ 20Ω ↔ 200Ω↔ 2000Ω ↔ 20kΩ↔200kΩ↔ 2000kΩ↔ 10MΩ 4.3.3 Sorting Function Upper and Lower Limit Settings After selecting the absolute value mode and determining...

  • Page 64: Sorting Function Standard Difference Value Settings

    4.3.4 Sorting Function Standard Difference Value Settings After selecting the percentage mode and determining the range, the corresponding standard and deviation values can be set, and the units of the standard and deviation values are consistent with the range.

  • Page 65: Multi-Channel Comparison Settings

    4.4 Multi-channel comparison settings After the multi-channel function is turned on, you can switch to the comparator page and set each comparator. 1．Select parameter setting page 2．The multi-channel setting is turned on, and the comparator switches to the multi-channel setting page; Press 【...
  • Page 66 Press 【 F1 】 to increase the measurement range, 【 F2 】 to decrease the measurement range, select the desired comparison range, and 【 F3 】 to set all channels with one click; 4．Compare upper limit value settings Press [F1] to close; Press [F2] to input, and set the value with the up, down, left, and right keys;...
  • Page 67 Press [F1] to close; Press [F2] to input, and set the value with the up, down, left, and right keys; Press [F3] to set all paths with one click;...

  • Page 68: Chapter 5 Measure

    Chapter 5 Measure 5.1 Start Test 1. Set relevant parameters 2. Connect the test line correctly 3. Start of testing Trigger mode significance Internal trigger instrument internal automatic trigger test External trigger Trigger test through external EXT IO end TRG signal Attention：...

  • Page 69: Measuring Value Display

    5.2 Measuring Value Display The following is the range of the test range. Once it exceeds the following range, it will display "OF" (range up) Test current and maximum display value of range： Resistance Measuring Maximum resolution range current display value 0.1μΩ...

  • Page 70: Automatic Protection Function

    5.3 Automatic Protection Function If an overvoltage is input at the measurement terminal, the internal circuit protection function of this instrument will be activated. If an overvoltage is input incorrectly, please immediately remove the test wire from the tested object. During operation protection...
  • Page 71 Attention: • After zeroing, if there is a change in ambient temperature or a change in the test line, please reset it again. • Please perform zero adjustment within all ranges used. When manually measuring the range, only zero the current range;...
  • Page 72 1. Short-circuit test line HT9363-C test clip type test line HT9363-B probe type test line...
  • Page 73 2. Confirm that the measured value is within 1%f.s. When the measured value is not displayed, please confirm whether the wiring of the test wire is correct Screen when wiring is correct： Screen when wiring is incorrect： 3. Press the [O.ADJ] key to perform zero adjustment...
  • Page 74 4. After performing zero adjustment If the zero adjustment is successful, will be displayed in the lower right corner of the measurement screen, and then return to measurement interface. If failed, displayed, return to measurement interface. Zero adjustment failed When zero adjustment is not possible, it may be due to the measurement value before zero adjustment exceeding ±...

  • Page 75: Chapter 6 Save Measurement Panel

    Chapter 6 Save Measurement Panel All measurement conditions can be saved, retrieved, or deleted in the form of files. Press the [PAGE] key to select the panel save interface. After entering the interface, press the up and down keys to view the saved records, and you can also save, load, clear, rename and other operations on the current record.

  • Page 76: Retrieve Measurement Settings

    6.2 Retrieve Measurement Settings Use the up and down keys to browse the current settings, and press the load key to retrieve the current settings. 6.3 Delete Measurement Settings Use the up and down keys to browse the current settings, and use the clear key to delete the current settings.

  • Page 77: Rename Measurement Settings

    6.4 Rename Measurement Settings Use the up and down keys to browse the current settings, and press the rename key to modify the current file name.

  • Page 78: Chapter 7 System Settings

    Chapter 7 System Settings 7.1 Button Sound Setting When operating the instrument buttons, you can choose whether to turn on the button tone. 1. Select System Settings Page 2. Select relevant menu items Press [F1] to turn off the button tone, press [F2] to turn on the button tone...

  • Page 79: Self-Calibration Function

    7.2 Self-calibration Function In order to maintain testing accuracy, the self-calibration function compensates for the bias voltage and gain drift inside the circuit. 1. Select parameter settings page 2. Select relevant menu items Press [F1] to set it to automatic. During TRG standby, perform self-calibration every 1 second for 5ms.

  • Page 80: Power Frequency Setting

    other than the predetermined one. When set to manual mode, if the temperature of the operating environment changes by more than 2 ℃, please be sure to perform self-calibration (accuracy cannot be guaranteed if not performed). When the temperature change in the operating environment is below 2 ℃...

  • Page 81: Radio Mode Setting

    Attention: When the power frequency is in [automatic] mode, sometimes the automatic capture of the power frequency may fail due to environmental noise, resulting in unstable measurement. In this case, it is recommended to manually select the power frequency instead. 7.4 Radio Mode Setting Press [F1] to close, press [F2] to open.

  • Page 82: Communication Mode

    7.5 Communication Mode The communication mode is divided into RS232 and LAN (Ethernet protocol uses TCP protocol), both of which use SCPI protocol format. The communication instructions refer to the instruction set in the CD. It is prohibited to connect the communication port with the testing port, otherwise it may damage the instrument.
  • Page 83 Interfaces and cables RS232 Connection method...

  • Page 84: Lan Communication Protocol

    RS232 settings 1. Select System Settings Page 2. Select relevant menu items 3. Select communication Baud 7.5.2 LAN Communication Protocol LAN communication adopts TCP protocol communication...
  • Page 85 Interfaces and cables The Ethernet interface adopts a standard RJ45 port, and the cable adopts a Category 5 or higher network cable. Connection method 1. Instrument and computer connection When connecting the instrument to the computer, the network cable adopts a crossover cable. The A-terminal method adopts the 568B standard, while the B-terminal method adopts the 568A standard.
  • Page 86 Both ends adopt 568B standard： Gree Brow Orang Blue Gree Brow Orange Whit Whit Whit White Setting 1. Select System Settings Page 2. Select TCP communication mode ３. Set communication address...

  • Page 87: Usb Interface

    7.6 USB interface The front panel of this instrument is equipped with a USB interface, which is used for HOST function. After inserting a USB drive, it is used for upgrading programs and saving data. Chapter 8 EXT I/O for external control...

  • Page 88: Trigger Source Settings

    The EXT I/O terminal on the rear panel of the instrument supports external control, provides output for testing and comparison judgment signals, and accepts input TRG signals. All signals use Optical coupler. Through instrument panel settings, all input/output signals can be configured to (NPN) or (PNP) levels.

  • Page 89: Trigger Level Setting

    2. Select relevant menu items 3. Press [F2] to select EXT 8.2 Trigger Level Setting 1. Select I/O page...

  • Page 90: Level Mode Setting

    2. Select relevant menu items 8.3 Level Mode Setting 1. Select I/O page 2. Select the level mode, press [F1] to set it to NPN, and press [F2] to set it to PNP...

  • Page 91: Npn Wiring Method

    8.3.1 NPN Wiring Method...

  • Page 92: Pnp Wiring Method

    8.3.2 PNP Wiring Method 8.4 EOC Mode Setting 1. Select I/O page 2. Select relevant menu items...
  • Page 93 3. Press [F2] to select a pulse 4. Press [F1] to enter the time...

  • Page 94: Output Mode Setting

    8.5 Output Mode Setting The output signal includes judgment mode and BCD mode. When using and not using a multiplexer, the output signals of the judgment mode are different. The BCD mode combines other functions through high and low bits (and range information).
  • Page 95 Needle Function ISO_COM BIN0 BIN2 BIN4 BIN6 BIN8 OUT0 OUT2 INDEX BIN1 BIN3 BIN5 BIN7 BIN9 OUT1 Terminal function in BCD mode...

  • Page 96: Port Signal Details

    BCD_LOW ISO_COM HILO BCD4-1 RNG_OUT1 BCD4-3 RNG_OUT3 BCD5-1 BCD1-1 BCD5-3 BCD1-3 BCD6-1 BCD2-1 BCD6-3 BCD2-3 BCD7-1 BCD3-1 BCD7-3 BCD3-3 BCD4-0 RNG_OUT0 BCD4-2 RNG_OUT2 BCD5-0 BCD1-0 BCD5-0 BCD1-2 BCD6-0 BCD2-0 BCD6-2 BCD2-2 BCD7-0 BCD3-0 BCD7-2 BCD3-2 8.6 Port Signal Details...

  • Page 97: Port And Signal Description

    8.6.1 Port and Signal Description 8.6.2 Port Diagram （Instrument end）...
  • Page 98 Logical Signal Function organiz ation External trigger edge BCD_LOW BCD low byte output level INTERLOCK Key lock level Panel selection, channel LOAD0 level designation Panel selection, channel LOAD2 level designation ISO_VDD ISO_GND Not used Abnormal test level Comparator judgment level Comparator judgment level BIN0...

  • Page 99: Port Signal Connection Method

    IOS_GND Not used End of measurement level End of simulation INDEX level measurement Comparator judgment level Sort NG gear level BIN1 Sort P1 gear level BIN3 Sort P3 gear level BIN5 Sort P5 gear level BIN7 Sort P7 gear level BIN9 Sort P9 gear level...

  • Page 100: Input Circuit Connection

    polarity） Maximum DC30 VMAX load voltage Maximum 50 mA/ch output current Residual Below 1 V （ load current 50 mA ） voltage / below 0.5 V （load current 10 mA） correspond to reverse output ： Output 5.0 V ± 10% 、 correspond source voltage output：-5.0 V ±...

  • Page 101: Output Circuit Connection

    8.6.5 Output circuit connection...

  • Page 102: Timing Diagram

    8.7 Timing Diagram The level of each signal represents the ON/OFF state of the contact, and the set value of the pull-in current (PNP) is the same as the voltage level of the EXT I/O terminal. The voltage level High and Low in the current injection (NPN) setting are opposite.
  • Page 103 Judgment result /BCD ： HI、 IN、 LO、 ERR、 BCDm-n、 RNG_OUT0 ～ 3 When OVC is ON Judgment result /BCD ： HI、 IN、 LO、 ERR、 BCDm-n、 RNG_OUT0 ～ 3 (2) External trigger [EXT] setting （EOM output PULSE） At the end of the measurement, the EOM signal becomes ON, and if it passes through the time set to EOM pulse width (t5), it returns to OFF.
  • Page 104 Judgment result /BCD ： HI、 IN、 LO、 ERR、 BCDm-n、 RNG_OUT0 ～ 3 Explanation of each time in the timing diagram Proj Content Time Remarks trigger pulse ON can select ON/OFF above 0.1 ms time edge trigger pulse OFF above 1 ms time delay 0 ～...
  • Page 105 8.7.2 Read process when triggered externally The following is the process of obtaining measurement values from the start of measurement when using external triggering. After determining the judgment results (HI, IN, LOW, ER, GD, NG), this instrument immediately outputs an EOC signal. When the response of the controller input circuit is slow, it takes a waiting time from detecting the ON of the EOC signal to reading the judgment result.

  • Page 106: Timing Diagram External Control Confirmation

    8.8 Timing Diagram External Control Confirmation The level of each signal represents the ON/OFF state of the contact, and the set value of the pull-in current (PNP) is the same as the voltage level of the EXT I/O terminal. The voltage level High and Low in the current injection (NPN) setting are opposite.
  • Page 107 Output signal, operable signal (OFF: close output, ON: open output) Input signal, display the status of the signal (ON: reverse display, OFF: normal display) 4. Exit the I/O test page...

  • Page 108: Chapter 9 Multi-Channel Test Lines

    Chapter 9 Multi-channel test lines 9.1 Configuration of connectors and terminals Four wire test port Terminal name Terminal name reserve D10+ D10- S10+ S10- D11+ D11- S11+...

  • Page 109: Definition Of Multi-Channel Test Lines

    S11- D12+ D12- S12+ S12- reserve 9.2 Definition of multi-channel test lines Line 1 colo brow Brow oran Oran Green Blue white whit white white func tion Line 2 color oran Oran gree Gree whit white whit whit functi Line 3 color oran Oran...
  • Page 110 functi Line 4 color oran Oran gree Gree whit white whit whit functi Line 5 color oran Oran gree Gree whit white whit whit functi Line 6 color oran Oran gree Gree whit white whit whit functi...

  • Page 111: Internal Circuit Composition

    9.3 Internal circuit composition...

  • Page 112: Chapter 10 Parameter

    Chapter 10 Parameter 10.1 General Parameters HT3542 Test parameters DC resistance Test Range Range 0.1μΩ～10 MΩ, 10 ranges Measuring <DC 1A～1μA Current Fast speed (2.2ms); medium speed (50Hz: 21ms, Test Speed 60Hz: 18ms); Slow speed 1 (102ms); slow speed 2 (202ms) Thermoelectric culling function Input Terminal Banana plug...

  • Page 113: Accuracy

    10.2 Accuracy LP：OFF Test accuracy (%rdg.+%f.s.) Maximum measurem Range Fast medium slow1 slow2 ent range 0.060+0.050 0.060+0.020 0.060+0.020 20 mΩ 22.0000mΩ (0.060+0.015) (0.060+0.002) (0.060+0.001) 0.060+0.0100 0.060+0.010 0.060+0.010 (0.060+0.003) (0.060+0.001) (0.060+0.001) 220.000mΩ 0.014+0.050 0.014+0.020 0.014+0.020 200mΩ (0.014+0.015) (0.014+0.002) (0.014+0.001) 0.012+0.010 0.012+0.008 (0.012+0.003) (0.012+0.001) 2200.00mΩ...

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