Rish INSU 5Dx+ User manual

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INSU 5Dx+
Operating Manual
Digital Insulation Tester

TABLE OF CONTENTSChapter 1: General Aspects………………....……………………….........................................3 1.1 Features of the meter.......………………....………………………......................................3 Chapter 2: User and Battery Safety….....………………………........................................5 Chapter 3: Basic Components and Indications in the Meter...............................7 3.1 Legends and their meanings ..........................................................................8 3.2 Basic indications and their meanings...............................................................8Chapter 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 Dielectric Discharge Mode ...........................................................................26 5.7 Voltage Mode ............................................................................................30 Chapter 6: Graph window................................................................................31Chapter 7: File explorer...................................................................................34Chapter 8: Audio read-out Feature..................................................................36Chapter 9: Settings of the meter.....................................................................37 9.1 SLEEP Mode Settings..................................................................................37 9.2 Time/date Settings....................................................................................38 9.3 Customer information.................................................................................391

9.4 Brightness settings....................................................................................40 9.5 Short circuit Settings..................................................................................41 9.6 Go No Go Settings.....................................................................................42 9.7 Other Settings(Bluetooth,USB and audio read out(speaker))............................43Chapter 10: Meter Specifications....................................................................45Chapter 11: Battery Charging.........................................................................48Chapter 12: Insulation Resistance Measurement for various Equipments........49 12.1 Transformers...........................................................................................49 12.2 Circuit breakers........................................................................................50 12.3 Cables....................................................................................................50 12.4 Current transformers.................................................................................51 12.5 Motors....................................................................................................51Chapter 13: Connection of meter with PC using USB.......................................52Chapter 14: Connection of meter with PC using bluetooth...............................54Chapter 13: Connection of meter with Android phone using bluetooth............58DMAN-00IM-0900_REV_B_07_20212

CHAPTER 1GENERAL ASPECTS1.1 Features of the meterSelectable Test Voltage up to 5000 V: Test voltages can be set to any desired valuefrom 100V to 5000V with steps of 10V upto 1000V and steps of 25V above 1000V.High Insulation resistance measurement: Insulation resistance measurement from50kΩ to 10TΩ .Noise rejection - 8mA: High Noise immunity allows accurate measurement under noisyenvironment.Polarization Index: Polarization index (PI) testing is an extension of the insulationresistance test and is designed to check specific issues such as moisture and insulationdeterioration.Dielectric Absorption Ratio: DAR measurement is a diagnostic test similar to thePolarization Index (PI), but DAR takes the ratio of the Insulation Resistance usuallymeasured at 30 sec and 1 min.Dielectric Discharge Test: Dielectric Discharge(DD) test is a diagnostic insulation testthat allows aging and deterioration to be assessed.Step Voltage Test: Step Voltage Test is designed as a controlled over-voltage or prooftest to provide an additional evaluation of the insulation system integrity.Ramp Diagnostic Test: The Ramp Test is performed with a slowly rising voltage.Software Selectable Filter: User selectable software filter can be used depending onnoise levels. This help in accurate reading in noisy environments.Capacitance Measurement: Capacitance can be measured from 1nf to 50uF.3

Go- NoGo Function: User can set an insulation resistance limit below which user will bealarmed about the quality of insulation.Insulation Graph Display: Insulation Resistance trend can be displayed over the time ingraphical form.Communication Interface: Bluetooth 2.0 & 4.0 Class II and electrically isolated USB 2.0communication.Software and Mobile Application: It has data logging and monitoring software forwindow system and an interactive mobile application for android.File Explorer: It has file explorer to view the datalog file on TFT display.Audio Read-Out: Audible test result on completion of test for awkward locations.Rechargeable Battery: Li-Ion 3 Cell Battery with charging current of 1A.Internal Data logging: It has internal data logging feature. It can log up to 2000 testfiles with customer information and time stamp.Selectable test time: User can set the test time to any desired test time from 45 sec to99 min 59 sec.The home screen of the meter is as shown below:4

5USER 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 beisolated, the circuit should also be discharged and checked before the insulation is tested.During the test please make sure that you do not touch any of the test leads. The cautionsymbol on the measurement screen indicates that hazardous voltage is present at thetest leads.After test completion you should make sure that the load is completely dischargedbecause this charge can be dangerous.The voltage indicator and internal discharge should be treated like additional safetydevices and not a substitute for the general practices.Insulation testing in wet conditions can be hazardous. It is recommended that theinstrument should not be used under these circumstances.During control from bluetooth or USB the test can be started at any time. Please makesure the connections are proper before turning on the test.Please use only the leads supplied with the meter for testing the device.BATTERY SAFETY:Following safety measures should be followed while handling the battery:Do not disassemble or change the battery. This battery consists of safety and protectiondevices which if damaged can cause harm to the battery.Do not heat the battery in any way.Do not pierce the battery.Do not expose the battery to water.CHAPTER 2USER AND BATTERY SAFETY

6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 oreyes. If by mistake you make contact, wash the affected area with water and contactdoctor.Keep the battery away from children.Do not expose the battery to extreme temperatures. Extreme temperature will reducethe lifetime of the lithium ion battery.

CHAPTER 3BASIC COMPONENTS AND INDICATIONS IN THE METER756412387

3.1 LEGENDS AND THEIR MEANING1. Negative(-) terminal2. Guard(G) terminal3. Positive(+) terminal4. LED indicating presence of mains5. USB slot for device connection6. Speaker7. Protective cover8. TFT touch screen display3.2 BASIC INDICATIONS AND THEIR MEANINGMains connectedBattery chargingBluetooth modeBreakdown modeBurn modeBattery cannot supply nominal currentGuard fuse blownUSB modeDanger High Voltageat leadsSpeaker muteSpeaker unmuteCurrent limit warningBattery fully charged indication8

CHAPTER 4CONNECTION OF TEST LEADS TO METERThe 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. Figure below shows the probe handle for the single probes(Guard and positive) and double probe which is connected to the negative terminal. Both the handles have a rotor for locking the probe to the meterDue to the locking mechanism of the probes the probes remain firmly connected to the meter during the test. Following are the steps to connect the probe to the meter:Insert the probes into the meter as shown in the below diagram:Single probe handleDouble probe handleProbe rotorNegativeGuardPositive9

10Then push the probes into the meter and rotate the probe rotor as shown below so thatthe probe gets locked to 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. The 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 steps of 10V below 1000Vand in steps of 25V above 1000V. There is also a standard voltage button to set standardtesting voltages (100V, 250V, 500V, 1000V, 2500V, 5000V).CHAPTER 5MEASUREMENT MODES OF THE METERSoftware filter buttonmin buttonsec button11

12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 selectedfrom 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. Thekeyboard will appear and then you can enter the desired time between 45 sec and 99 min59 sec and then press the button on the keyboard to set the time.After setting up all the basic settings press the button to go back to the mainmeasurement screen. All these control settings are stored by the meter so that the nexttime 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 bemeasured.On the measurement screen press and hold the button for about 3 seconds and then release it to start the test.The speaker will give 3 beeps in order to indicate that the test has started. After the testhas been completed all the parameters will be displayed(according to the meter setting)like insulation resistance, capacitance, DAR, PI, voltage, current as shown below.

Because there are a lot of parameters to be displayed they have been divided into threesub screens which can be scrolled using the scrolling arrows. Figure shows the sequenceof the screens along with the parameters displayed on the corresponding screen.You can save the data of this test by pressing the button. After pressing this buttona message will appear to tell you about the file number. You can press the OK button onthe message box in order to go back to the measurement screen.5.2 DAR Mode:DAR(Dielectric Absorption Ratio) is defined as the ratio of insulation resistance at 1 minute divided by insulation resistance at 30 seconds. It is very useful to know the condition of the insulation. It can be expressed in formula as:SCREEN 1SCREEN 2SCREEN 3VOLTAGE AT LEADS/DUTVOLTAGE DURING TEST SETVOLTAGEDAR INFORMATIONPI INFORMATIONSCREEN 1SCREEN 2SCREEN 3VOLTAGE DURING TEST SETVOLTAGEDAR INFORMATIONPI INFORMATION13

DAR = IR60s / Ir30sDAR 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 be displayed.To setup the basic settings of the mode press the icon. The control window will appear as shown below.Software filter button14

15Here you can set the voltage using the voltage up and down in steps of 10V below 1000Vand in steps of 25V above 1000V. There is also a standard voltage button to set standardtesting voltages (100V, 250V, 500V, 1000V, 2500V, 5000V).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 selectedfrom the drop down list which will appear after pressing the software filter button.As we know DAR tests are measurements of resistance over time expressed as a ratioof resistance at time t2 divided by resistance at time t1. The t1 and t2 both can be set inthe control window with the help of their corresponding arrows. The up arrow willincrease the time and the down arrow will decrease the time.After setting up all the basic settings press the button to go back to the mainmeasurement screen. All these control settings are stored by the meter so that the nexttime 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 bemeasured.On the measurement screen press and hold the button for about 3 seconds and then release it to start the test.The speaker will give 3 beeps in order to indicate that the test has started. After the testhas been completed all the parameters will be displayed(according to the meter setting)like insulation resistance, capacitance, DAR, PI, voltage, current.

Because there are a lot of parameters to be displayed they have been divided into threesub screens which can be scrolled using the scrolling arrows. Figure shows the sequenceof the screens along with the parameters displayed on the corresponding screen.You can save the data of this test by pressing the button. After pressing this buttona message will appear to tell you about the file number. You can press the OK button onthe message box in order to go back to the measurement screen.5.3 PI Mode:PI(Polarization Index) is defined as the ratio of insulation resistance at 10 minute divided by insulation resistance at 1 minute. It is very useful to know the condition of the insulation. It can be expressed in formula as:PI = IR10min / Ir1minSCREEN 1SCREEN 2SCREEN 3VOLTAGE AT LEADS/DUTVOLTAGE DURING TEST SETVOLTAGEDAR INFORMATIONPI INFORMATION16

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 be displayed:To setup the basic settings of the mode press theicon. The control window will appear as shown below.Software filter button17

18Here you can set the voltage using the voltage up and down in steps of 10V below 1000Vand in steps of 25V above 1000V. There is also a standard voltage button to set standardtesting voltages (100V, 250V, 500V, 1000V, 2500V, 5000V).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 selectedfrom the drop down list which will appear after pressing the software filter button.As we know PI tests are measurements of resistance over time expressed as a ratio ofresistance at time t2 divided by resistance at time t1. The t1 and t2 both can be set in thecontrol window with the help of their corresponding arrows. The up arrow will increasethe time and the down arrow will decrease the time.After setting up all the basic settings press the button to go back to the mainmeasurement screen. All these control settings are stored by the meter so that the nexttime 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 bemeasured.On the measurement screen press and hold thebutton for about 3 seconds and then release it to start the test.The speaker will give 3 beeps in order to indicate that the test has started. After the testhas been completed all the parameters will be displayed(according to the meter setting)like insulation resistance, capacitance, DAR, PI, voltage, current.

Because there are a lot of parameters to be displayed they have been divided intothree sub screens which can be scrolled using the scrolling arrows. Figure shows thesequence of the screens along with the parameters displayed on the correspondingscreen.You can save the data of this test by pressing the button. After pressing this buttona message will appear to tell you about the file number. You can press the OK button onthe 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. The SV test is based on the principle that an ideal insulator will produce identical readings at all voltages, while an insulator which is being over stressed, will show lower insulation values at higher voltages. This test is divided into 5 intervals. SCREEN 1SCREEN 2SCREEN 3VOLTAGEAT LEADS/DUTVOLTAGE DURING TEST SETVOLTAGEDAR INFORMATIONPI INFORMATION19