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Rishabh RISH INSU 5Dt Operating Manual

5 kv digital insulation tester
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Operating Manual
RISH INSU 5Dt
5 kV Digital Insulation Tester

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

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Chapter 1: General Aspects………………..………………………........… 1.1 Features of the meter..………………..…………………… ........3 Chapter 2: User and Battery Safety…..………………………........5 Chapter 3: Basic Components and Indications in the Meter......3.1 Legends and their meanings ................8 3.2 Basic indications and their meanings............. Chapter 4: Connections of test leads to meter..........
  • Page 3 9.5 Short circuit Settings................9.6 Go No Go Settings................9.7 Other Settings(Bluetooth,USB and audio read out(speaker)) ......Chapter 10: Meter Specifications............... Chapter 11: Battery Charging and Battery Alarms........11.1 Battery Charging Process................45 11.2 Battery Alarms..................45 Chapter 12: Insulation Resistance Measurement for various Equipments..

  • Page 4: Chapter 1: General Aspects

    CHAPTER 1 GENERAL ASPECTS 1.1 Features of the meter Selectable Test Voltage up to 5000 V: Test voltages can be set to any desired value  from 100V to 5000V with steps of 10V upto 1000V and steps of 25V above 1000V. High Insulation resistance measurement: Insulation resistance measurement from ...
  • Page 5 Insulation Graph Display: Insulation Resistance trend can be displayed over the time in  graphical form. Communication Interface: Bluetooth 2.0 & 4.0 Class II and electrically isolated USB 2.0  communication. Software and Mobile Application: It has data logging and monitoring software for ...

  • Page 6: Chapter 2 User And Battery Safety

    CHAPTER 2 USER AND BATTERY SAFETY USER SAFETY: Following safety measures should be taken while using the instrument:  The circuit under test should be turned off /denergized(dead), all its terminals should be isolated, the circuit should also be discharged and checked before the insulation is tested. ...
  • Page 7  Do not subject the battery to shocks.  Never short circuit the battery pack.  In case the battery starts leaking, do not allow the liquid to come in contact with skin or eyes. If by mistake you make contact, wash the affected area with water and contact doctor.

  • Page 8: Chapter 3: Basic Components And Indications In The Meter

    CHAPTER 3 BASIC COMPONENTS AND INDICATIONS IN THE METER...

  • Page 9: Legends And Their Meanings

    3.1 LEGENDS AND THEIR MEANING 1. Negative(-) terminal 2. Guard(G) terminal 3. Positive(+) terminal 4. LED indicating presence of mains 5. USB slot for device connection 6. Speaker 7. Protective cover 8. Resting handle 9. TFT touch screen display 3.2 BASIC INDICATIONS AND THEIR MEANING Guard fuse blown Breakdown mode Mains connected...

  • Page 10: Chapter 4: Connections Of Test Leads To Meter

    CHAPTER 4 CONNECTION OF TEST LEADS TO METER The meter has 3 probes guard, positive and negative. Each probe consists of 2 ends. One of these ends is the probe handle which has to be connected to the meter and the other end will depend upon the type of accessories ordered.
  • Page 11 Then push the probes into the meter and rotate the probe rotor as shown below 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 hazard to the user when the test is being conducted or if the DUT is still charged.

  • Page 12: Chapter 5: Measurement Modes Of The Meter

    CHAPTER 5 MEASUREMENT MODES OF THE METER 5.1 IR Mode: This mode is used to measure the insulation resistance of a device for a fixed amount of time. The default time of this test is 45 sec. The steps to do a test in the IR mode are as follows To enter the IR mode press icon on the home screen.
  • Page 13 You can also change the filter settings in this window (hardware and software filter).  These filters are very useful in noisy environments. The software filter can be selected from the drop down list which will appear after pressing the software filter button. You can also set the test time in this mode by pressing the second or minute button.

  • Page 14: Dar Mode

    Because there are a lot of parameters to be displayed they have been divided into three  sub screens which can be scrolled using the scrolling arrows. Figure shows the sequence of the screens along with the parameters displayed on the corresponding screen. SCREEN 1 SCREEN 1 VOLTAGE...
  • Page 15 DAR = IR60s / Ir30s DAR of less than 1 indicates that the insulation is in poor condition, DAR of 1-1.4 indicates that the insulation is in good condition and 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 following screen will ...
  • Page 16 Here you can set the voltage using the voltage up and down in steps of 10V below 1000V  and in steps of 25V above 1000V. There is also a standard voltage button to set standard testing voltages (100V, 250V, 500V, 1000V, 2500V, 5000V). You can also change the filter settings in this window (hardware and software filter).

  • Page 17: Pi Mode

    Because there are a lot of parameters to be displayed they have been divided into three  sub screens which can be scrolled using the scrolling arrows. Figure shows the sequence of the screens along with the parameters displayed on the corresponding screen. SCREEN 1 VOLTAGE AT LEADS...
  • Page 18 PI of less than 1-2 indicates that the insulation is in poor condition, PI of 2-4 indicates that the insulation is in good condition and DAR of greater 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 screen will ...
  • Page 19 Here you can set the voltage using the voltage up and down in steps of 10V below 1000V  and in steps of 25V above 1000V. There is also a standard voltage button to set standard testing voltages (100V, 250V, 500V, 1000V, 2500V, 5000V). You can also change the filter settings in this window (hardware and software filter).

  • Page 20: Step Mode

    Because there are a lot of parameters to be displayed they have been divided into  three sub screens which can be scrolled using the scrolling arrows. Figure shows the sequence of the screens along with the parameters displayed on the corresponding screen.
  • Page 21 Interval = test time/5 In the first interval a test voltage of V/5 volts is applied to the DUT where V is the voltage selected in the control window. At the end of each interval the test voltage is increased by V/5 volts.
  • Page 22 Here you can set the voltage using the voltage up and down in steps of 10V below  1000V and in steps of 25V above 1000V. There is also a standard voltage button to set standard testing voltages (250V, 500V, 1000V, 2500V, 5000V). You can also change the filter settings in this window (hardware filter).
  • Page 23 RESISTANCE AT LAST INTERVAL/STEP (Rt5) SCREEN 1 VOLTAGE RESISTANCE AT LEADS AT EACH STEP /DUT SCREEN 2 VOLTAGE AT VOLTAGE EACH STEP DURING TEST SCREEN 3 CURRENT AT VOLTAGE EACH STEP Please note that in step mode if the meter is running on battery supply, the meter will not be able to deliver 5000V to a load resistance of below 10 MΩ.

  • Page 24: Ramp Mode

    5.5 Ramp Mode: The ramp mode is similar to the step voltage test but with many small tests. In this test the voltage increases continuously each second. The rate of increase of voltage is determined by the slope rate which can be set in the control window. For a slope rate of 100V/min the voltage will increase by approximately 1.67V in one second.
  • Page 25 You can also change the filter settings in this window (hardware filter). This filter is very  useful in noisy environments. You can also set the slope rate (voltage/min) with up and down arrows in this window. It is  the rate at which voltage will increase in the test.
  • Page 26 SCREEN 1 VOLTAGE AT LEADS /DUT SCREEN 2 VOLTAGE DURING TEST SCREEN 3 VOLTAGE SLOPE You can save the data of this test by pressing the button. After pressing this button  a message will appear to tell you about the file number. You can press the OK button on the message box in order to go back to the measurement screen.

  • Page 27: Voltage Mode

    Please note that if in any test the test current reaches beyond 1 mA, the meter will take a response time of about 10 min to display accurate readings for a current below 10 nA. This time can be reduced by turning hardware filter off. Please note that the capacitance measurement is not available in the STEP and RAMP modes of measurement.
  • Page 28 Before 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/DUT...

  • Page 29: Chapter 6: Graph Window

    CHAPTER 6 GRAPH WINDOW Along with the insulation resistance value and related parameters the meter also shows a trend of the insulation resistance of the DUT over time. This is a very important feature as the trend of the insulation resistance gives a lot of information about the condition of the insulation.
  • Page 30 Test duration Duration between 2 data points(Sample rate) 80 min 01 sec - 85 min 17 sec/data point 85 min 01 sec - 90 min 18 sec/data point 90 min 01 sec - 95 min 19 sec/data point 95 min 01 sec - 99 min 59 sec 20 sec/data point Following are the steps to view graph of insulation 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...
  • Page 31 With the help of arrow keys on the graph window you can view the detailed information of  each data point(time,voltage,current and insulation resistance). To indicate the point on the graph the cursor also moves on the graph. To exit the graph window you can press the button.

  • Page 32: Chapter 7 File Explorer

    CHAPTER 7 FILE EXPLORER The meter has an inbuilt storage facility where we can save the test data for future analysis. The meter has storage capacity of 2000 files. Along with the parameters (insulation resistance, voltage, current, DAR, PI and many others) the device also stores the graph for the saved test.
  • Page 33 You can also scroll to the desired file using the arrow keys.  In some modes there are a lot of parameters which cannot be displayed on a single  screen. So in such cases the main parameters are displayed on the front. The other parameters can be seen by pressing the scrolling arrows.

  • Page 34: Chapter 8 Audio Read-Out Feature

    CHAPTER 8 AUDIO READ-OUT FEATURE The meter has the audio read out feature. The meter reads 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 comes in very handy where the screen of meter is not directly accessible.

  • Page 35: Chapter 9: Settings Of The Meter

    CHAPTER 9 SETTINGS OF THE METER In addition to the settings in the control settings, there are also additional settings provided in the meter. These settings include sleep, date and time, customer information, brightness, short circuit, go no go and other settings. To enter the settings window press icon to enter the settings window.

  • Page 36: Time/Date Settings

    turned off in this mode. You will enter the sleep mode after a specified minutes of inactivity which can be set(default: 15 min). Also the sleep mode can be turned off if required by the user. Once meter enters the sleep mode you can come out of sleep mode by touching the screen.

  • Page 37: Customer Information

    The date and time window is as shown below: Click on the corresponding button to change field 9.3 Customer Information Settings: Along with the parameters the meter also stores customer information in the file in which the customer can write the test specific data like customer ID and name. This can also be set in the setting window by pressing the button after which the following window appears:...

  • Page 38: Brightness Settings

    In this window you can edit the customer ID and name by clicking on their respective buttons. Then an alphanumeric keyboard will appear where you have to enter the customer ID/ name and then press the key. BACKSPACE ENTER KEY 9.4 Brightness Settings: You can also change the brightness of the screen as per your requirement.

  • Page 39: Short Circuit Settings

    9.5 Short Circuit Settings: In this meter the short circuit current of the meter can also be changed. There are 2 settings available 1.2 mA and 3 mA. Also in case of fault(current goes above short circuit value) you can select whether to keep running the test or not using the breakdown/burn settings.

  • Page 40: Go No Go Settings

    Breakdown condition detected: This is displayed if the voltage at DUT delivered by  meter reaches the nominal voltage(voltage set by user) and the current crosses the short circuit current for about 20 sec. This message will not be displayed in the RAMP mode, only current limit condition is shown in this mode even if breakdown condition occurs.

  • Page 41: Other Settings(Bluetooth,Usb And Audio Read Out(Speaker))

    otherwise it will turn green. The go no go settings can be changed by pressing the icon on the settings window. ir limit ir limit unit voltage button button limit button You can change the go no go insulation resistance limit by clicking on the go no go insulation resistance button after which a keyboard will appear where you can insert the desired value and press the button.
  • Page 42 usb/bluetooth mute/unmute button button Communication interface setting: This meter has 2 interfaces for communication (Bluetooth or USB). Please note that at any given time only one interface can be used for communication. To select which interface to use you can press the USB/bluetooth button in the more settings window.

  • Page 43: Chapter 10: Meter Specifications

    CHAPTER 10 METER SPECIFICATIONS  Insulation Resistance Measurement: Nominal voltage Maximum Resistance Intrinsic Error 5% ± 1D 2 GΩ 100 V 10 GΩ 5% ± 1D 250 V 100 GΩ ± 20 GΩ 5% ± 1D 500 V 200 GΩ ±...
  • Page 44 Guard terminal: 2% error guarding 500 kΩ leakage, 100 MΩ load  Timer range for IR tests:  Time: 45s - 99 min 59 sec with three programmable timers Tests: IR(t),DAR,PI,Step Voltage, Ramp voltage Ambient conditions:  Operating Temperature: -20 C - +50 C Storage Temperature: -20 C - +70 C Relative Humidity: max.
  • Page 45 Battery specifications:  Battery: 11.1 V, 7.8Ah Li-on battery Battery Service Life: 6 Hrs continuous testing at 5 KV (100 Megaohm load) Battery charging time: 7 Hrs Power Supply (Mains): Nominal power(mains) 230V AC + 15%, 50/60 Hz  Power Supply Fuse Rating: Dimension(20X5mm), 250VAC , 5A ...

  • Page 46: Chapter 11: Battery Charging And Battery Alarms

    CHAPTER 11 BATTERY CHARGING AND BATTERY ALARMS 11.1 Battery charging process: To charge the battery of the meter you have to insert the power cord provided with the  meter into the socket at the back of the meter. Then connect the power cord into any nearby power socket. Please make sure that the ...

  • Page 47: Chapter 12: Insulation Resistance Measurement For Various Equipments

    CHAPTER 12 INSULATION RESISTANCE MEASUREMENT FOR VARIOUS EQUIPMENTS Insulation resistance is measured while manufacturing various equipments like transformer, circuit breakers, cables etc. It should be noted that the negative measurement lead should not be connected to large ground conductors. Following are the connections schemes for insulation resistance measurement for different equipments: 12.1 TRANSFORMERS: HV winding (with 3 phases...

  • Page 48: Circuit Breakers

    12.2 CIRCUIT BREAKERS: Top to earth with Bottom to earth with Top to bottom with guard to body guard to body guard grounded Positive terminal of insulation tester Negative terminal of insulation tester Guard terminal of insulation tester 12.3 CABLES: Positive terminal of insulation tester Negative terminal of insulation tester Guard terminal of insulation tester...

  • Page 49: Current Transformers

    12.4 CURRENT TRANSFORMERS: Positive terminal of insulation tester Negative terminal of insulation tester Guard terminal of insulation tester Primary to ground with body of the CT connected to guard 12.5 MOTORS: Positive terminal of insulation tester Negative terminal of insulation tester Insulation resistance testing of motor...

  • Page 50: Chapter 13 Connection Of Meter With Pc Using Usb

    CHAPTER 13 CONNECTION OF METER WITH PC USING USB For connection of meter with the PC using USB follow the following steps:  On the meter, go to Settings> More Settings and turn on the USB by touching on the USB/bluetooth.
  • Page 51  Then go to the device manager of your computer and check the COM port of 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. ...

  • Page 52: Chapter 14 Connection Of Meter With Pc Using Bluetooth

    CHAPTER 14 CONNECTION OF METER WITH PC USING BLUETOOTH For connection of meter with the PC using USB follow the following steps:  On the meter, go to Settings> More Settings and turn on the bluetooth by touching on the USB/bluetooth.
  • Page 53  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.
  • Page 54  Then installing driver message will appear.  Wait till the 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 properties. ...
  • Page 55  Then 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 computer.

  • Page 56: Chapter 15 Connection Of Meter With Android Phone Using Bluetooth

    CHAPTER 15 CONNECTION OF METER WITH ANDROID PHONE USING BLUETOOTH For connection of meter with the PC using USB follow the following steps:  On the meter, go to Settings> More Settings and turn on the bluetooth by touching on the USB/bluetooth.
  • Page 57  Then press the button shown in the figure.  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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