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Rishabh RISH INSU 5Dt, Operating Manual

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Rishabh RISH INSU 5Dt Operating Manual Download Page 48

47

Insulation resistance of power cables

Top to bottom with 

guard grounded

Top to earth with 

guard to body

Bottom to earth with 

guard to body

12.2 CIRCUIT BREAKERS:

12.3 CABLES:

Positive terminal of insulation tester 

Negative terminal of insulation tester 

G

Guard terminal of insulation tester 

G

Positive terminal of insulation tester 

Negative terminal of insulation tester 

G

Guard terminal of insulation tester 

Summary of Contents for RISH INSU 5Dt

Page 1: ...RISH INSU 5Dt Operating Manual 5 kV Digital Insulation Tester...

Page 2: ...eanings 8 Chapter 4 Connections of test leads to meter 9 Chapter 5 Measurement modes of the meter 11 5 1 IR Mode 11 5 2 DAR Mode 13 5 3 PI Mode 16 5 4 Step Mode 19 5 5 Ramp Mode 23 5 6 Voltage Mode 26...

Page 3: ...g Process 45 11 2 Battery Alarms 45 Chapter 12 Insulation Resistance Measurement for various Equipments 46 12 1 Transformers 46 12 2 Circuit breakers 47 12 3 Cables 47 12 4 Current transformers 48 12...

Page 4: ...Dielectric Absorption Ratio DAR measurement is a diagnostic test similar to the Polarization Index PI but DAR takes the ratio of the Insulation Resistance usually measured at 30 sec and 1 min Step Vo...

Page 5: ...plication for android File Explorer It has le explorer to view the datalog le on TFT display Audio Read Out Audible test result on completion of test for awkward locations Rechargeable Battery Li Ion...

Page 6: ...evices and not a substitute for the general practices Insulation testing in wet conditions can be hazardous It is recommended that the instrument should not be used under these circumstances During co...

Page 7: ...l reduce the lifetime of the lithium ion battery SYMBOLS ON THE INSTRUMENT Caution Please refer user manual Caution Risk of electrical shock Equipment complies with current EU directives Bluetooth Equ...

Page 8: ...CHAPTER 3 BASIC COMPONENTS AND INDICATIONS IN THE METER 1 2 3 4 5 6 4 7 8 9 7...

Page 9: ...6 Speaker 7 Protective cover 8 Resting handle 9 TFT touch screen display 3 2 BASIC INDICATIONS AND THEIR MEANING Mains connected Battery charging Bluetooth mode Breakdown mode Burn mode Pre alarm for...

Page 10: ...nd positive and double probe which is connected to the negative terminal Both the handles have a rotor for locking the probe to the meter NOTE Insulation of the DUT should be fully discharged before c...

Page 11: ...ow so that the probe gets locked to the meter NOTE Do not disconnect the test leads of the meter till the test has been completed and the DUT has been discharged as the leads can cause electrical haza...

Page 12: ...e main measurement screen will appear To setup the basic settings of the mode press the icon The control window will appear as shown below Here you can set the voltage using the voltage up and down in...

Page 13: ...ter setting up all the basic settings press the button to go back to the main measurement screen All these control settings are stored by the meter so that the next time you start the meter you do not...

Page 14: ...ll you about the le number You can press the OK button on the message box in order to go back to the measurement screen 5 2 DAR Mode DAR Dielectric Absorption Ratio is de ned as the ratio of insulatio...

Page 15: ...DAR of greater than 1 4 indicates that the insulation is in an excellent condition The steps to take a test in DAR mode are as follows To enter the DAR mode press the icon on the home screen and follo...

Page 16: ...can be set in the control window with the help of their corresponding arrows The up arrow will increase the time and the down arrow will decrease the time After setting up all the basic settings pres...

Page 17: ...ng this button a message will appear to tell you about the le number You can press the OK button on the message box in order to go back to the measurement screen 5 3 PI Mode PI Polarization Index is d...

Page 18: ...eater than 4 indicates that the insulation is in an excellent condition The steps to take a test in PI mode are as follows To enter the PI mode press the icon on the home screen and the following scre...

Page 19: ...can be set in the control window with the help of their corresponding arrows The up arrow will increase the time and the down arrow will decrease the time After setting up all the basic settings press...

Page 20: ...tell you about the le number You can press the OK button on the message box in order to go back to the measurement screen 5 4 Step Mode In the step voltage test 5 test voltages are applied to the DUT...

Page 21: ...V 5 volts So in the last interval the test voltage will become V volts The value at the end of each interval is stored by the meter The steps to take a test in STEP mode are as follows To enter the st...

Page 22: ...e you start the meter you do not need to do these settings again Then connect the test leads to the equipment whose Insulation Resistance has to be measured On the measurement screen press and hold th...

Page 23: ...ply the meter will not be able to deliver 5000V to a load resistance of below 10 M SCREEN 1 SCREEN 2 SCREEN 3 VOLTAGE AT LEADS DUT VOLTAGE DURING TEST SET VOLTAGE VOLTAGE AT EACH STEP CURRENT AT EACH...

Page 24: ...ter than short circuit current limit which can be set in the settings window It will be discussed in detail in the further chapters The test time in this test is determined by the nal voltage and the...

Page 25: ...to do these settings again Then connect the test leads to the equipment whose Insulation Resistance has to be measured On the measurement screen press and hold the button for about 3 seconds and then...

Page 26: ...ter pressing this button a message will appear to tell you about the le number You can press the OK button on the message box in order to go back to the measurement screen SCREEN 2 SCREEN 3 VOLTAGE DU...

Page 27: ...itance of DUT the test should be run till the voltage of DUT reaches the set voltage 5 6 Voltage Mode The instrument also has a voltmeter that measures AC DC voltage from 20 V to 600 V This voltmeter...

Page 28: ...fore the start of the test if voltage above 50V is present at the terminals the speaker will make beep sound to indicate the presence of voltage in these modes IR DAR PI STEP and RAMP VOLTAGE AT LEADS...

Page 29: ...ata point Test duration Duration between 2 data points Sample rate 5min 1 sec data point 5 min 01 sec 10 min 2 sec data point 10 min 01 sec 15 min 3 sec data point 15 min 01 sec 20 min 4 sec data poin...

Page 30: ...ion resistance vs time for a given DUT On the home screen go to your desired test mode IR DAR PI STEP or RAMP using their corresponding button After this run the test as per the instructions given in...

Page 31: ...w you can press the button Along with the data of the test the graph of the test is also stored when you save the le The saved graph can be viewed in the le explorer Also you can view the graph while...

Page 32: ...he le explorer and to read the data in your desired les you have to follow the following steps On the home screen enter any mode using their respective icon IR DAR PI STEP or RAMP Press the button to...

Page 33: ...ng the scrolling arrows You can also view the graph for the test by pressing the button In case the memory gets fully occupied you can delete individual les by going to the le and pressing the button...

Page 34: ...read out the Polarization Index PI and in the DAR mode it will read out the Dielectric Absorption Ratio DAR after the test is completed This feature can be turned on off by the user So to check wheth...

Page 35: ...ooth usb get reset to their default values once the meter is restarted The settings window is as shown below 9 1 SLEEP Mode Settings As the meter is a battery operated device power saving plays a very...

Page 36: ...you can change the sleep time by pressing on the minutes button and a keyboard will appear where you have to enter the minutes and press button The sleep mode can also be turned ON OFF by clicking on...

Page 37: ...stores customer information in the le in which the customer can write the test speci c data like customer ID and name This can also be set in the setting window by pressing the button after which the...

Page 38: ...have to enter the customer ID name and then press the key 9 4 Brightness Settings You can also change the brightness of the screen as per your requirement There are three settings available You can c...

Page 39: ...nge the breakdown burn setting by clicking on the icon in the bottom left corner which indicates the present breakdown burn setting Difference between breakdown mode and burn mode Breakdown mode In th...

Page 40: ...rd or breakdown This is displayed when the voltage doesn t reach the desired value and the current is below 1 mA This is generally displayed when the user accidentally shorts the positive and guard te...

Page 41: ...ng the desired value on the keyboard and then pressing the button You can also turn on off go no go by clicking on off button shown in the above window The icon of this button shows whether the go no...

Page 42: ...ads out the insulation resistance values and other parameters like Polarization index PI and Dielectric Absorption Ratio DAR with the help of powerful speaker This feature can be turned on off by pres...

Page 43: ...ment 0 01nA to 3mA Accuracy 5 0 2 nA Test voltage Accuracy 7 0 10 V nominal test voltage 42 Measuring Range Frequency Intrinsic Error 3 10D 20V 600V AC DC 45 Hz 500 Hz 100 V Nominal voltage 250 V 500...

Page 44: ...cable Standards Reference Conditions o Ambient Temperature 23 C 2 k Relative Humidity 45 55 Measured quantity frequency 50 Hz 10 Hz Line voltage waveform Sine wave Battery Voltage 11 1V 1 Operating po...

Page 45: ...tegory 600 V CAT IV Test voltage 7 4 KV AC Pollution degree 2 Dimensions L X B X H 290mm x 250mm x 140mm Weight Approx 5 kg Accessories a Standard scope of supply 1 In built Li ion rechargeable batter...

Page 46: ...cord symbol will appear on the task bar as shown below Also the battery charging symbol will appear If the meter battery has completely discharged it will take about 7 Hrs to charge the battery As soo...

Page 47: ...rs Following are the connections schemes for insulation resistance measurement for different equipments 12 1 TRANSFORMERS HV winding with 3 phases short to LV winding with 3 phases short HV winding wi...

Page 48: ...y Bottom to earth with guard to body 12 2 CIRCUIT BREAKERS 12 3 CABLES Positive terminal of insulation tester Negative terminal of insulation tester G Guard terminal of insulation tester G Positive te...

Page 49: ...12 5 MOTORS Positive terminal of insulation tester Negative terminal of insulation tester 48 Positive terminal of insulation tester Negative terminal of insulation tester G Guard terminal of insulati...

Page 50: ...SB by touching on the USB bluetooth When the icon will have icon of USB it means USB has been selected Then go back to home screen of the meter and then connect the USB cord received with the meter to...

Page 51: ...the installed device as shown below Then install the software provided with the device Then select the COM port in the software and press the connect button Then message will be displayed Press ok bu...

Page 52: ...tings More Settings and turn on the bluetooth by touching on the USB bluetooth When the icon will have icon of bluetooth it means bluetooth has been selected Then go back to home screen of the meter M...

Page 53: ...52 Then click on 5Dt_xxxxxxxxx where xxxxxxxxx is serial number and then press next button The computer will pair with the device and the following screen will appear Click on the close button 52 52...

Page 54: ...e driver is installed and then driver installed message will appear Now again right click on the bluetooth icon and click on show bluetooth device Then right click on 5Dt_xxxxxxxxx and click propertie...

Page 55: ...install the software provided with the device Then select the COM port in the software and press the connect button Then press ok button as shown below and the device will be connected to the compute...

Page 56: ...th by touching on the USB bluetooth When the icon will have icon of bluetooth it means bluetooth has been selected Then go back to home screen of the meter Install the mobile application INSU Connect...

Page 57: ...56 56 56 Then press the button shown in the gure Then in the drop down menu press the connect button Then the following screen will be displayed and the meter is now connected to your phone...

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