sspcj1001 multi function varistor tester specification
Contents
1. 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 1 Varistor DC parameters Varistor 1s a kind of resistor which has a variable resistance with the change ofcurrent flow through it or voltage applied to it Under a low current voltage condition varistor s resistance is extremely high which may act as an open circuit When the current voltage reaches a specific value its resistance will drop dramatically with increase of current voltage which may drop to a few tens of milli ohms and act as a perfect conductor Therefore the varistor has an extremely broad range of operating current from uA totens of KA usually the characteristics of the varistor are verified by d c measurement when the operating current smaller than 10mA while for greater operating current ranges a pulse measurement will be performed The D C characteristics of the varistor usually cover three parameters 1 Varistor voltage UN 11 Leakage current IL 111 Non linearity index a 1 1 Varistor voltage UN The voltage of varistor when 1 mA current pass through it is named Nominal Varistor Voltage UN which characters a change point of the state of varistor from insulting to conducting UN is one of the important parameters of varistor 1 2 Leakage current IL The current pass through varistor when a specified voltage less than UN applied on it is named Leakage Current IL 1 3 Non linearity index a Non linear2. button pressed a current output to the DUT connector can be set optionally ranging from 5uA to 5mA and then get the responding voltage reading of the DUT 2 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 2 3 C V Constant Voltage mode At C V mode when the Test button pressed a test voltage applied on the DUT can be set optionally ranging from 5V to 1400V and then get the current reading of the DUT Therefore a Volt Ampere Characteristic of the DUT can be obtained at CC or CV mode 2 4 Test Operation There are three methods to start a test operation i Pressing the Test button ii Using Remote control option ili A special test jig provided by the producer of the tester With these 3 test operation methods the CJ1001 provide ultimate test flexibility 3 Specifications lemperature Air Pressure Power Output voltages Tolerances of voltage readings Output current Tolerances of current readings Ripple factor of output voltages Test current for varistor voltages Polarities Dimensions 6 05 kPa 20 Hz 220W Hz LO 220 VA 5 400 TOV 200V 600M IOO0V 1400 V V in five ranges 0 5mA m tour ranges ZUpA 200nA 2mA 5m OA 370 IMA JMA 2 Positive and Negative i jl D i JOLLA 3 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 4 Safety Summary To avoid
3. insert the device to be tested to the test jig the test would start testing automatic without pressing any button 6 9 Connector This is the earthing connector of the tester only used for calibrating the equipment Never comiect the gt connector to earth 6 10 Polarity Switch the output current polarity Positive current of DUT connector is flow from positive to negative Negative current of DUT connector is follow from negative to positive 7 Operation 7 1 Power Connection Connect the tester to the power supply which provide 220V 50Hz AC Switch on the tester and wait 3 minutes to warm up N Before connection please made sure ihe supplied voltage is 3230F 50Hz AC 7 2 DUT Test Jig Connection Connect the responded test jig for the device to be tested or direct connect the device to the DUT connector Please make sure the polarity is correct do prevent amv fazands 9 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 7 3 Auto measurement Switch the operation mode to Auto Set the Test Current and Test Voltage according to the device under test switch a suitable Current Range and Voltage Range Press the Test button and wait the readings to be stable 7 4 Constant voltage output Switch the operation mode to C V Set the Voltage Range according to the voltage needed adjust the output voltage by the Voltage Adj Press t
4. Electronic Alliance www eaa net au SSPCJ1001 MULTI FUNCTION VARISTOR TESTER SPECIFICATION Chuang Jie Lightning Protection Ca Ltd I 4 iz Current Range EE ITI l alti fer Listen i s Ope cation Mode ya Vien pa Boe Tarji itemnigs Cnmirnl Test dig i DF E riti Power Varistor DC Parameters l 6 1 Current Range 7 1 1 Varistor Overview l 6 2 Test Voltage 7 1 2 Nominal Varistor Voltage UN l 6 3 Voltage Range 7 1 3 Leakage Current IL wwe l 6 4 Test Current 1 7 1 4 Non linear Indexa l 6 5 Operation mode 7 2CJIO0 Overview 2 6 6 Test Button 8 2 1 Auto Testing Mode 2 6 7 Remote Control Connector 8 2 2 C C Constant Current Mode _ s 2 6 8 Test Jig Connector 9 2 3 C V Constant Voltage mode 3 6 9 Connector 9 2 4 Test Operation 3 6 10 Polarity 4 9 3 Specifications ween 3 7 Operation 2 9 4 Safety Summary 1 4 7 1 Power Connection 9 5 Getting Start ooo 5 7 2 DUT Test Jig Connection 9 5 1 Front Panel 2 5 7 3 Auto measurement 10 5 2 Preparing the CJ1001 tester for use 6 7 4 Constant voltage output 10 6 Functions Control I 7 5 Constant current output
5. er 5 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 5 2 Preparing the CJ1001 tester for use Fig 2 shows the back side of the CJ1001 tester i R 1 E LLL LL EE EN R Calibration of VN S Calibration of VNO 1 Paes tr jani T Calibration of IL V Fuse W Protected earth X Battery box U X U Power cord connector i T EF d n TIT i i rui l vhor r1 d 2654 L Pee bro a 4 Pk E 5 2 1 Connecting the power Connect a suitable power cord to the power cord connector U Before connection please make sure the supplied power is comply with the operation power specified in the specification 5 2 2 Fuse If the fuse was broken replace it with a fuse with parameter suitable for the tester 5 2 3 Battery Box 2 D size battery must be installed in the battery box when the test jig connector was used Please make sure the batteries in the battery box provide enough voltage The bhatiery voltage Musi be higher ihan LAV inder 3mA current 6 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 6 Functions Control Location of the buttons switches may refer to Fig 1 6 1 Current Range Select the current range to be measured and tested 6 2 Test voltage 6 2 1 Under Auto operation mode The test voltage to test leakage current was defined as follow 1 75 voltage applied is 0 75UN i 83 voltage applied is 0 83UN ill Pre set A
6. he Test button to output the voltage selected The output will stop if the Test button was released The a reading was meaningless under this operation mode High voltage wil he generated when the Test button was pressed 7 5 Constant current output Switch the operation mode to C C Set the Test Current according to the maximum current needed adjust the output current by the Current Adj Press the Test button to output the current selected The output will stop if the Test button was released High voltage wil be generated when the Test Mutton was pressed 10 10
7. ity index a 1s defined by the formula a 1 log U1 logU0 1 where U1 U0 1 is the voltage across varistor when a specified test current IL and 0 1IL passing through it respectively 1 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 2 CJ1001 Overview CJ1001 is designed to test for the parameter of voltage clamping component such as MOV and TVS It can test for the nominal voltage UN non linear index a and the leakage current IL CJ1001 is a multifunctional laboratory type nstrument which can also serves as a Constant Current C C and Constant Voltage C V source There are three selectable operation mode AUTO CC CV 2 1 Auto Testing Mode 2 1 1 Through a test period around 300ms you can get three parameters readings of the varistors under testing i Varistor voltage UN ii Leakage current IL iil Non linearity index a 2 1 2 UN is determined at three selectable test currents IN 0 1mA 1 mA 3mA 2 1 3 a is determined by one of the three formula as below a1 1 log U1000 U100 02 1 log U100 U10 03 2 log U1000 U 10 where U1000 U100 U10 are the varistor voltage determined at 1000uA 100uWA 10uA respectively The calculation is accomplished by a built in single chip computer 2 1 4 IL is determined at three selectable test voltages 0 75UN 0 83UN or apreset voltage 2 2 C C Constant Current Mode At C C mode when the Test
8. ny pre set voltage 6 2 2 Pre set voltage i Switch the operation mode to C V ii Adjust the voltage show in the UN reading to the wanted voltage by adjusting the Voltage Adj switch iil Switch the operation mode to Auto iv Switch the Test Voltage to Pre set The three test voltage modes only function in Auto operation mode 6 3 Voltage Range Switch the upper limit of the voltage output To ensure the accuracy of the measurement the voltage range should set to the lowest possible range which supplies enough voltage 6 4 Test Current for UN mA Select the current for testing nominal voltage UN under Auto operation mode 6 5 Operation Mode Select the operation mode of the tester 6 5 1 Auto Mode The tester will perform one test circle after pressing the Test button measure the nominal voltage UN leakage current IL and calculate the non linear index a 7 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 6 5 2 C C Mode C C constant current mode switches the tester to act as a constant current supply When Test button was pressed there will be current output The value of the output current could be set by adjusting the Current adj switch The value of the output current will be shown on the Current IL display the responded voltage across the load will be shown on the Voltage UN display The output current range must
9. potential hazards use the product only as specified 4 1 High Voltage The tester will generate voltage up to 1400V Contact of the conducting parts of the device under test is prohibited 4 2 Do Not Operate in Wet Damp Conditions To avoid electric shock do not operate this product in wet or damp conditions 4 3 Use Proper Supply Voltage Before applying power ensure that the supply voltage 1s suitable for the tester as specified in the specifications 4 4 Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel 4 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 5 Getting Start 5 1 Front Panel H C SP CJ1001 Varistor Tester Chuang Jie Lighfning Protection Co Lid E I l Fig 1 Front Panel of the CJTO01 A Reading of leakage current IL J Test current IN switch B Reading of nominal voltage UN K Earth connection for calibration ONLY C Reading of non linear index a L Connector for the device under test D Current range switch M Polarity switch E Test voltage switch N Operation mode switch F Start test button O Current adjustment G Remote control connector P Voltage adjustment H Test jig connector Q Power switch I Voltage range selector Ihe Earth connector in tne from panel is for calibration ONLY For earthing purpose j please use the protected earth connector at the back of the test
10. set by the Test Current for UN switch Example Test Current for UN switch was set to ImA max current output of C C mode will be 1mA 6 5 3 C V Mode C V constant voltage mode switches the tester to act as a constant voltage supply When Test button was pressed there will be voltage output The value of output voltage could be set by adjusting the Voltage adj switch The value of the output voltage will be shown on the Voltage UN display the responded current flow through the load will be shown on the Current IL display The output range of the voltage could be set by adjusting the Voltage Range switch 6 6 Test button At Auto operation mode Test button is used to start the test procedure At the C C or C V operation mode Test button was used to output the selected current and voltage respectively 6 7 Remote Control Connector Only function under Auto operation mode Remote Control connector was used to connect the specific test jig for testing of lightning protective module 8 10 Electronic Alliance www eaa net au CJ1001 Varistor Tester User Manual 6 8 Test Jig Connector Test Jig connector was used to connect a specific auto operate test jig To use this test Jig connected the 4 pin connector of the test jig to the Test jig connector of the front panel Set the polarity to positive operation mode to Auto
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