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HOPETECH HT9980A User Manual

Pv safety comprehensive tester
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PV Safety Comprehensive Tester
User's Manual
HT9980A/HT9981A
1

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Summary of Contents for HOPETECH HT9980A

  • Page 1 PV Safety Comprehensive Tester User’s Manual HT9980A/HT9981A...

  • Page 2: Safety Tips

    Safety Tips Warning Danger When the following abnormal situations occur, do stop operating and turn off the power immediately, otherwise, fire and electric shock would be caused. Call your dealer or Hope Electronics representative for help. ⚫ Improper device operation ⚫...

  • Page 3: Limited Security And Responsibility Scope

    This guarantee does not include fuses. Hopetech Electronics commits that the instrument has no defects in materials and process, such as product quality problems under warranty. If the product is proved to be defective, Hope Electronics will repair or replace it free of charge.

  • Page 4: Table Of Contents

    Table of Content Safety Tips............................2 Safety Information ..........................2 Statement ............................2 Limited Security and Responsibility Scope ..................3 Chapter 1 Safety Rules ..........................6 1.1 General provisions ........................6 1.2 Care and Maintenance ........................6 1.2.1 User maintenance ....................... 6 1.2.2 Regular maintenance ......................
  • Page 5 Chapter 9 System Parameter Setting ....................40 9.1 System parameter description ....................40 9.2 System Parameter Setting ......................40 Chapter 10 Maintenance Guide ......................44 10.1 Routine maintenance ........................ 44 10.2 Simple troubleshooting ......................44 10.3 Quality Assurance ........................44...

  • Page 6: Chapter 1 Safety Rules

    Chapter 1 Safety Rules Thank you for purchasing our products. Please read this manual before use, and keep it handy for future reference. In this chapter you will learn the following: ⚫ General provisions ⚫ Care and maintenance ⚫ Test environment ⚫...

  • Page 7: Regular Maintenance

    Hopetech authorized distributor. 1.2.2 Regular maintenance For HT9980A/HT9981A tester, input power cords, test leads and related accessories must be carefully inspected and calibrated at least once a year to ensure the safety of the operator and the accuracy of the instrument.

  • Page 8: Operator Regulations

    ⚫ Make sure that all personnel can immediately tell the object under test, object to be tested, and tested object. ⚫ The test area and the surrounding air must not contain flammable gases, and the tester should not be used near flammable materials. 1.4 Operator Regulations 1.4.1 Qualification of personnel The voltage and current output by the tester will result in death or serious injury to the operator.

  • Page 9: Safety Points

    placed in a fixed position and cannot be placed at will. 1.6 Safety Points ⚫ Non-qualified operators and unrelated personnel should stay away from the high-voltage test area. ⚫ Always be safe and orderly in the high-voltage test area. ⚫ Never touch the test object or any object connected to the test object during the high voltage test.

  • Page 10: Chapter 2 Safety Regulations

    And excellent design and selection of good insulation materials can protect users from electric shock. The hi-pot test performed by HT9980A/HT9981A tester is generally called "high-voltage dielectric test", referred to as "withstand voltage test" for short. basic It is specified that the working voltage of the test object is 2 ×...

  • Page 11: Advantages And Disadvantages Of Dc Testing

    The withstand voltage test is more precise in product design and sample production than in production. The trial phase has already determined the safety of the product. Although only a few samples are used to judge the product design, Online testing should also strictly require that all products must pass safety standards to confirm that no defective products will flow out of the production line.

  • Page 12: Advantages & Disadvantages Of Dc Testing

    2.3.2 Advantages & Disadvantages of DC Testing Features: During the DC hi-pot test, the stray capacitor in the DUT is fully charged. The capacitance current caused by the DC hi-pot test will drop to zero after the stray capacitance is fully charged.

  • Page 13: Ground Resistance Test

    2.5 Ground Resistance Test The ground resistance test mainly measures the contact resistance between the ground wire of the appliance and the casing. The measurement method is based on the principle of Ohm's law, a current flows on the contact point, then measure the current and voltage value of the contact point separately, and then calculate the resistance value is according to Ohm's law.

  • Page 14: Chapter 3 Technical Specification

    Test parameters 3.1 Product Description HT9980A and HT9981A as PV safety testers used for photovoltaic module safety parameters, It’s also be used for household appliances, electronic instruments, electronic equipment, electronic components, wires and cables and other electrical products withstand voltage, insulation test and ground test.

  • Page 15: Insulation Resistance Test Parameters

    Fall time （0 = OFF） 0.1s to 999.9s Time resolution 0.1s Time accuracy ± (0.1% set value+0.05 s) Arc Level Range:1-9 (0 = OFF) Discharge time <50mS(without load connected) <100ms (connecting capacitive load (capacitance less than 0.1uF)) Capacitive load maximum 1uF < 1kV 0.75uF <...

  • Page 16: Ground Resistance Test Parameters

    ± (20% display value+3 count)； Timing Test time 0.1s to 999.9s function Time resolution ± (0.1% set value+0.05 s) 3.4 Ground resistance test parameters Model HT9980A Output current 10A ～ 60A range Output current 士(2% set value+5 count) accuracy Output current 0.01A...
  • Page 17 0 ～ 200.00mΩ （30.01A ～ 40.00A） ； 0 ～ 150.00mΩ （40.01A ～ 50.00A） ； 0 ～ 120.00mΩ （50.01A ～ 60.00A） ； Display resolution 0.01mΩ （600.00mΩ ～ 100.00mΩ） ； 0.001mΩ（99.999mΩ ～ 10.000mΩ） ； 0.1uΩ （9.9999mΩ ～ 1.0000mΩ） ； Measurement 士(2% set value+3 count) accuracy Setting range 0 ～...
  • Page 18 Model HT9981A Output current 10A ～ 80A range Output current 士(2% set value+5 count) accuracy Output current 0.01A resolution Output maximum 360VA (6V80A) rated power Maximum output voltage Output voltage Full load <300mVp-p ripple Current stability ± 1.0% Display range 10A ～...
  • Page 19 Display resolution 0.01mΩ （600.00mΩ ～ 100.00mΩ） ； 0.001mΩ（99.999mΩ ～ 10.000mΩ） ； 0.1uΩ （9.9999mΩ ～ 1.0000mΩ） ； Measurement 士(2% set value+3 count) accuracy Setting range 0 ～ 600.00mΩ （10.00A ～ 20.00A） ； 0 ～ 300.00mΩ （20.01A ～ 30.00A） ； 0 ～ 200.00mΩ （30.01A ～ 40.00A） ； 0 ～...

  • Page 20: Chapter 4 Instrument Overview

    Chapter 4 Instrument Overview 4.1 Front Panel 4.1.1 Front View Figure.4.1 Front View 4.1.2 Front Panel Description 1：3 3.5 inch TFT display 2：Key area 3：Front panel ventilation area 4: Ground resistance test terminal Drive+ current output positive end Sense+ voltage sampling positive end Sense- voltage sampling negative end (HV-Input withstand current return terminal) Drive- Negative terminal of current output...

  • Page 21: Rear Panel

    4.2 Rear Panel 4.2.1 Schematic diagram of the rear panel Figure 4.2 Schematic diagram of the rear panel 4.2.2 Rear panel description 1: grounded heat sink 2: Air outlet 3: Hi-pot heat sink 4: Input power socket Standard input power socket provides working power for the instrument. 5: power switch 6: remote control terminal 7: Serial communication D-type terminal...

  • Page 22: Instrument Size

    4.3 Instrument Size The instrument dimensions are as follows: Figure 4.3 Dimensions of the chassis...

  • Page 23: Chapter 5 Operating Procedures And Steps

    Chapter 5 Operating Procedures and Steps 5.1 Instructions This series of hi-pot tester is mainly used for general production line or quality inspection, its operation and setting are very simple. Irrational settings and operations will not respond. 5.2 Steps Follow these procedures and steps to operate the instrument: 1.
  • Page 24 5.2 DC Hi-pot Test Interface 5.3 Insulation Resistance Test Interface 5.4 Ground Resistance Test Interface If you want to reset the test parameters, press the "SET" key to set the parameters. For detailed setting methods and steps, please refer to the description of "Test parameter setting". 5.
  • Page 25 return to the test interface. 7.If you want to stop the test while the test is in progress, press the "STOP" switch. The instrument will immediately stop the test and the display will retain the current test value. If you want to continue the test, you can press the "STOP"...

  • Page 26: Chapter 6 Remote Input And Output Signals

    Chapter 6 Remote Input and Output Signals 6.1 Input and Output Signals On the back panel of the tester, there are remote monitoring and remote control terminal blocks. This allows to connect tester to the monitoring center for monitoring its working state and you can also use the remote control to operate the tester.

  • Page 27: Chapter 7 Automatic Discharge Circuit

    Chapter 7 Automatic Discharge Circuit 7.1 Discharge Principle After the test, especially the DC hi-pot test, a large amount of power will remain on the test object and in the circuit, which must be discharged first then the test lead can only be removed. After the tester completes the test, the program automatically drives the discharge circuit.

  • Page 28: Chapter 8 Test Parameter Setting

    Chapter 8 Test Parameter Setting 8.1 Test Parameter Description After power-on, the program will automatically enter the parameters set during the last test before the last shutdown, and the LCD display will show 8.1 DC hi-pot test interface 8.2 Insulation Resistance Test Interface 8.3 Ground Resistance Test interface Prompt description: ⚫...
  • Page 29 turned on ⚫ DC MODE: DC hi-pot test mode ⚫ IR MODE: Insulation resistance test mode ⚫ GD MODE: ground resistance test mode ⚫ SET: Prompt information, indicating that it is currently under test or parameter setting status Variable description： ⚫...

  • Page 30: Measurement Parameter Setting

    leakage current or insulation resistance lower limit, rise time, test time, fall time, delay judgment time, select the parameter to be set and use the “Input” function key to confirm the setup parameter, then use the numeric keys to set the required value, and then press the "Enter"...
  • Page 31 Use the "▲" or "▼" key on the measurement parameter setting interface to select the "test voltage" setting content, as shown in the figure below: 8.8 "Test voltage" setting interface In this interface, press the "Input" key, the first digit of the voltage value will be displayed in reverse, and use the numeric keys to set the required voltage value.
  • Page 32 Use the "▲" or "▼" key on the measurement parameter setting interface to select the setting content of " judgment value lower limit ", as shown in the figure below: 8.10 lower limit "judgment value lower limit" setting interface In this interface, press the "Input" key, the first digit of the voltage value appears in reverse, and use the numeric keys to set the required lower limit of the judgment value.
  • Page 33 500V / S; Calculate Ramp T = 3000V / (500V / S) = 6S; Ramp T is set to 6.0S 6. Hi-pot test time setting (DC Hi-pot test) Use the "▲" or "▼" key on the measurement parameter setting interface to select the "test time"...
  • Page 34 8.14 Hi-pot test "Arc Sensitivity" Setting Interface In this interface, press the "Input" key. The first digit of the voltage value will be displayed in reverse. Use the numeric keys to set the required arc sensitivity. After setting, press “Enter” to confirm. To abandon the setting, press the "Esc" key to exit the current setting.
  • Page 35 continuous test function of M1 and M2. 10. Test resistance comparator upper limit setting (insulation resistance test) In the insulation resistance test mode, use the "▲" or "▼" key to select the setting of the "upper limit of judgment value" on the measurement parameter setting interface, as shown in the figure below.
  • Page 36 setting value to the previous setting value. 12. Test range value setting (insulation resistance test) In the insulation resistance test mode, use the "▲" or "▼" key to select the "test range" setting content in the measurement parameter setting interface, as shown below: 8.18 Insulation resistance “Range”...
  • Page 37 the range. Hi-EN has the following options: OFF: Disable comparator upper limit function NO: Enable comparator upper limit function 14. Waiting time setting (insulation resistance test) In the insulation resistance test mode, use the "▲" or "▼" key to select the setting of the "wait time"...
  • Page 38 press the "Esc" key to exit the current setting. 16. Judgment value upper limit setting (ground resistance test) In the ground resistance test mode, use the "▲" or "▼" key to select the "Judgment value upper limit" setting content in the measurement parameter setting interface, as shown below: 8.22 Ground Resistance “Judgment Value Upper Limit”...
  • Page 39 8.24 Ground Resistance "Open Circuit Alarm" Setting Interface In this interface function keys to set the desired parameters.
  • Page 40 Chapter 9 System Parameter Setting 9.1 System parameter description Press the "Set" key in the test parameter setting interface to enter the system parameter setting interface, as shown below: Figure 9.1 System parameter setting interface 9.2 System Parameter Setting 1. Communication port selection Press the "▲"...
  • Page 41 9.3 "Baud rate" setting interface In this interface, use the function keys to select the required communication rate. Baud rate setting options: 9600: communication baud rate is 9600; 19200: communication baud rate is 19200; 38400: communication baud rate is 38400; 57600: the communication baud rate is 57600;...
  • Page 42 9.5 "Language" Setting Interface In this interface, use the function keys to select the required option. Language setting options: Chinese: Chinese operation interface; English: English interface; 5. No Test without Code Setting Press the "▲" or "▼" key to select the content to be set, as shown below 9.6 "...
  • Page 43 In this interface, press the "Input" key and use the numeric keys to set the waiting time for code. After the selection is complete, press "Enter" to confirm. To cancel the setting, press the "Esc" key to exit the current setting. Waiting time for code is the time required to wait for the code to be scanned when no test without code is measured and set to "ON".
  • Page 44 10.3 Quality Assurance We guarantees that the products manufactured by Hopetech are subject to strict quality confirmation. The factory quality guarantee period for products is two years. Product manufacturing defects or failures during this period will be repaired free of charge.

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