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WatchfulEye US128002, Manual

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WatchfulEye US128002 Manual Download Page 15

Portable  Surge  Protective  Device  Tester

Ⅵ

II. Calibration Steps of the Tester

Opened the back cover of the tester with a screwdriver, find the potentiometer R3, R14, R17 and R4 in corresponding to
the calibration functions.
Step 1. Calibrate the constant current of 1mA
Choose FUNCTION 2 to calibrate the stability of 1mA current(at current mode of a mutimeter)
Step 2. Calibrate the break-over voltage with R3
Choose FUNCTION 2 to calibrate the break-over voltage of MOV(at voltage mode of a mutimeter)
Step 3. Calibrate 75% of the break–over voltage with R14
Choose FUNCTION 2 to calibrate the 75% of break-over voltage(at voltage mode of a mutimeter)
Step 4. Calibrate the leakage current with R17
Choose FUNCTION 3 to calibrate the leakage current of MOV under 75% of break-over voltage (at voltage mode of a
mutimeter)
Step 5. Calibrate the breakdown voltage with R4
Choose FUNCTION 7 to calibrate the breakdown voltage of GDT(at voltage mode of a mutimeter)

Note:

 R3, R14, R17 and R4 indicate potentiometers

(Open the back cover of an SPD tester with a screwdriver, the blue components in the following picture refer to
potentiometers R3, R14, R17 and R4)

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Summary of Contents for US128002

Page 1: ...oltages In this way it has the effect of draining and limiting the pressure Importance of Leakage Current Parameters With the extension of the service life of the voltage limiting surge protector the gradual aging of the MOV chip will be accompanied by an increase in leakage current The increase in leakage current will cause overheating accelerated aging and failure of the surge protector If we do...

Page 2: ...as solar and wind power system etc UL certificate for power supply series UL File number E345944 UL certificate for networking signal series UL File number E346881 CE Certificate Certificate number for power supply series 1048140519 Certificate for networking signal series 1044270319 RoHS Certificate RoHS for power supply series STT 15T1037 RoHS RoHS for Networking and signal series STT 15T1036 Ro...

Page 3: ...na Plugs and Testing Pens 7 Testing Preparation and Testing Mode Selection 7 FUNCTION SELECTION 8 TESTING MODE AND PROCEDURE Ⅰ Rapid Test of MOV Type SPDs 9 Ⅱ Precise Test and Calibration Mode of Break Over Voltage 10 Ⅲ Precise Test and Calibration of MOV Leakage Current 11 Ⅳ Leakage Current Test under the Mode of Fine Turning Ad Voltage 12 Ⅴ GDT Test and Calibration 13 VI Precise Testing and Cali...

Page 4: ...zzer will sound if the leakage current exceeds 20 μA 5 Applied to testing both MOV type and GDT type SPDs 6 Precise break over voltage test under the constant current 1mA 7 Precise leakage current test under 75 of the break over voltage 8 The voltage of the tester can be boosted up to 1000V DC 9 Convenient multimeter calibration methods Conformity of Test Result The breakover voltage of surge prot...

Page 5: ...e limiting type SPDs break over voltage and leakage current will display in about 2 5 seconds Range of breakdown voltage for testing 0 1000V 2 5 5V 120 1000V FUNCTION 6 testing mode for testing switch type SPDs boost the DC voltage step by step at a rate of 100V second for an accurate measurement of breakdown voltage Minimum resolution of the break over Voltage 1V Minimum resolution of the leakage...

Page 6: ...Portable Surge Protective Device Tester Introduction of the SPD tester www watchfuleyesolutions com Page 06 Back to MENU ...

Page 7: ...interval the tester will emit a continuous sound of Beep Beep to remind you of shutting down to save energy avoiding running out of batteries due to long time standby Test Error If the test error is in the unacceptable range calibrate to the common voltage segments and critical leakage current e g if a calibration for the 500V voltage segment is applied in a 300V voltage segment test it will resul...

Page 8: ...age in negative increments of 1Ad 1Ad 0 293V then the value of leakage current under the boosted voltage will be alternately displayed with the Ad value FOR SWITCH TYPE SPDS GDT TYPE 6 Standard Test boost the voltage at a rate of 100V sec and the voltage boosting progress bar is displayed Finally the breakdown voltage of the Switch type SPD will be displayed 7 Precise Test boost the voltage at a r...

Page 9: ...so when the screen returns to the 0 standby mode press the TEST button to start the second test 4 Exit to the standby mode When the leakage current displays on the screen in 1 second without any key operation the screen will be cleared to 0 and will exit the test to return to standby mode Test with The Default Value of Break over Voltage 1 Function Selection Choose FUNCTION 8 2 Set the default val...

Page 10: ... with an accuracy of 0 1μA Connect the multimeter in series with the MOV type SPD and the test pens and verify the constant current output of 1mA 2 The description of the MOV leakage current is given by the tested voltage value when the constant current is 1mA According to this characteristic the more accurate the 1mA constant current outputs the more accurate the testing data of the break over vo...

Page 11: ...e on the accuracy of the leakage current 1 Choose a multimeter Fluke 87V or any other multimeter with an accuracy of 0 1V 2 Connect the multimeter probes in parallel with the SPD and the test pens 3 In this mode the constant voltage is 75 of the break over voltage outputs The tester screen continually and alternately displays 75 of the break over voltage value and the leakage current value as well...

Page 12: ...tage In this mode adjust the constant voltage value based on the accuracy of 1Ad 0 293V 1 Set the mode button to A position and press the TEST button When hearing a sound of Beep each time reduce 1Ad voltage based on 75 of the break over voltage value The screen displays the adjusted Ad value and the tester will accurately display the fine turning constant voltage of the leakage current value 2 Se...

Page 13: ...gain When the voltage reaches close to the breakdown point of 100Ad slow down boosting the voltage at a rate less than 1V second The screen will keep displaying the corresponding voltage values until the SPD is broken down after which the breakdown voltage will display on the screen 5 Exit to the standby mode The screen will be cleared to 0 and you can exit the test to the standby mode in about 1 ...

Page 14: ...2 Wiring diagram on the right 3 Operation steps press FUNCTION KEY to select Function 2 the index on the screen points to 2 then press TEST KEY to generate current and verify the voltage displayed on the tester with the voltage in calibration table and then press FUNCTION KEY to exit Related pages Accurate Testing and Calibration of MOV Turn On Voltage Page 10 3 Verify Leakage Current 1 Principle ...

Page 15: ...er Step 3 Calibrate 75 of the break over voltage with R14 Choose FUNCTION 2 to calibrate the 75 of break over voltage at voltage mode of a mutimeter Step 4 Calibrate the leakage current with R17 Choose FUNCTION 3 to calibrate the leakage current of MOV under 75 of break over voltage at voltage mode of a mutimeter Step 5 Calibrate the breakdown voltage with R4 Choose FUNCTION 7 to calibrate the bre...

Page 16: ...reak over voltage and leakage current of voltage limiting surge protector MOV breakdown voltage of switch type surge protector GDT or hybrid surge protector 4 Can the surge protector be detected when it is powered on A surge protector cannot be tested under the power on condition It s required to disconnect the circuit breaker or air circuit breaker at the front of the surge protector to confirm t...

Page 17: ...u 9 How many times can 4 AA batteries be tested We simulated testing in the laboratory The break over voltage of the tested surge protector was 620V The test started testing with 4 new No 5 batteries installed until the tester showed LOBAT low voltage alarm The following are the results of the simulation test 1 On 1st day install 4 new No 5 batteries the display shows voltage 6 4V After being test...

Page 18: ... measured voltage of the multimeter is 600V the varistor value selected for calibration should be within 600V 15 How is the five year warranty of the tester defined You must be the original owner of the tester and enjoy free warranty service for up to 5 years from the date of shipment The following list is not covered by the free warranty 1 Free accessories 2 Conventional measurement services 3 Re...

Page 19: ... Official App To learn about more products and updates from company please scan QR code to download the official App After sale Services Watchful Eye provides a 5 year quality warranty globally I have a question www watchfuleyesolutions com Page 19 Back to MENU ...

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