DV Power RMO100G Manual 

2 Safety Instructions............................................................................................................................... 3 3 Designated Use .................................................................................................................................. 4 4 Functionality ........................................................................................................................................ 4 5 Description .......................................................................................................................................... 6 6 Getting Started .................................................................................................................................... 9 7 DV-Win Software............................................................................................................................... 16 8 Remote Control ................................................................................................................................. 24 9 Error Messages ................................................................................................................................. 24 10 Technical Data .................................................................................................................................. 27 11 Accessories....................................................................................................................................... 30 Manufacturer Contact Information .......................................................................................................... 30 Manual Version: RMO100G MV.10.02 This Manual refers to the firmware version RO1-10.02 IBEKO Power AB 2012 This Manual is a publication of IBEKO Power AB, 181 33 Lidingö, Sweden. All rights including translation reserved. Reproduction of any kind, e.g., photocopying, microfilming or storage in electronic data processing systems, requires the explicit consent of IBEKO Power AB. Reprinting, wholly or in part, is not permitted. This Manual represents the technical status at the time of printing. The product information, specifications, and all technical data contained within this Manual are not contractually binding. IBEKO Power AB reserves the right to make changes at any time to the technology and/or configuration without announcement. IBEKO Power AB is not to be held liable for statements and declarations given in this Manual. The user is responsible for every application described in this Manual and its results. IBEKO Power AB explicitly exonerates itself from all liability for mistakes in this manual. IBEKO Power AB translates this Manual from its source language English into a number of other languages. Any translation of this Manual is done for local requirements, and in the event of a dispute between the English and any non-English versions, the English version of this Manual shall govern.

1 Introduction This Manual contains helpful instructions on how to use RMO100G in a safe, proper and efficient way. Following these instructions can help you to avoid dangerous situations, repair costs and other miss happenings due to incorrect operation. Furthermore it ensures the reliability and life cycle of your RMO100G. RMO100G must be used in observance of all existing safety requirements/ regulations from national/local standards for accident prevention and environmental protection. Reading the RMO100G Manual alone does not release the user from the duty of complying with all national and international safety regulations relevant for working with RMO100G. 2 Safety Instructions Before operating RMO100G, please carefully read the following safety instructions. It is not recommended that the RMO100G will be used (or even turned on) without the understanding of this Manual. RMO100G should only be operated by trained and authorized personnel. Rules for Use • RMO100G should only be used when in a technically fit condition. Its use should be in accordance with the safety regulations for the actual working site and application. Always be aware of the dangers of high voltages and currents associated with this equipment and its environment. Pay attention to the information provided in the operations Manual. • RMO100G is intended exclusively for the application areas specified in ”Designated Use”. The manufacturer and distributors are not liable for damage resulting from unintended usage. The user alone assumes all responsibility and risk. • The instructions provided in this Manual are considered part of the rules governing proper usage. • Do not open RMO100G. All service and maintenance work must be performed by qualified personnel. Orderly Practices and Procedures • The Manual should always be available on the site where the RMO100G is used. • Before using RMO100G, all personnel (even personnel who only occasionally, or less frequent, work with RMO100G) assigned to RMO100G should read the operations Manual. • Do not undertake any modifications, extensions, or adaptations to the RMO100G. • Use RMO100G in conjunction with original accessories only. • Use both RMO100G and its original accessories for its designated use only. Cleaning To clean RMO100G, use a cloth dampened with isopropanol alcohol or water. Safe Operation Procedures • Hazardous voltages of up to 400 V can occur inside RMO100G. Therefore is not permitted to open RMO100G. • Do not insert objects (e.g., screwdrivers, etc.) into the ventilation slots. • Before putting RMO100G into operation, check the test set for visible damages. • Do not operate RMO100G under wet or moist conditions (condensation). • Do not operate RMO100G when explosive gas or vapors are present. • The serial interface of RMO100G should only have external devices connected that meet the requirements for SELV equipment according to EN 60950 or IEC 60950. • When setting up RMO100G, make sure that the air slots of the test set remain unobstructed. • If RMO100G is opened by the customer, all guarantees are invalidated. • If RMO100G seems to be functioning improperly, please contact the IBEKO Power AB (refer to section ”Manufacturer Contact Information”) after first checking the section Error Messages.

this connection as the first one before you do any other connections, and separate this connection as the very last one. Operator Qualifications • Testing with RMO100G should only be carried out by authorized and qualified personnel. • Personnel receiving training, instruction, direction or education on the RMO100G should remain under the constant supervision of an experienced operator while working with the test set and the test object. Power Supply • Supply RMO100G only from a power outlet that is equipped with protective ground. • Instead of supplying RMO100G from phase – neutral (L1-N, A-N), it may also be supplied from phase – phase (e.g., L1-L2; A-B). However, the voltage must not exceed 240 V AC, please refer to section Technical Data. Warning This is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. 3 Designated Use The Micro OhmMeter RMO100G is designed for measuring contact resistances of non-inductive test objects used in the electric power industry or similar branches. It is employed for resistance measurement during manufacturing, commissioning and testing of:  power circuit breakers,  interrupters,  bar installation,  cable splices,  welded joints,  grounding. Any other use of the RMO100G than the ones mentioned above is to be considered improper and will not only invalidate all customer warranty claims but also exempt the manufacturer from its liability for repair or exchange. 4 Functionality 4.1 Single Test The RMO100G generates a filtered (true) DC current and outputs it in an automatically regulated current ramp. The current increases with a constant slope from zero up to a set maximum value. When the current has reached its maximum, RMO100G measures the resistance of the test object. After test the output current ramps back down to zero with a constant slope. By sloping the current up and down, magnetic transients are virtually eliminated. 4.2 Continuous Test RMO100G can generate DC current continuously using the Contin menu. In this menu the current can be chosen the same way like in the Single menu, but the duration of the test can be preset. The test is started pressing the START button. By pushing Ω button current test result is stored in internal memory. During the test, a new result is shown on the display and stored into the PC (DV-Win) approximately each second. Using DV-Win the result can be printed like an Excel table which later can be shown as a diagram and used for a report. Test is completed when the test time previously set in the menu has elapsed, or when the STOP button is pressed.

STOP button, the last measured result will remain saved in the internal memory. Upon expiry of the selected test lasting time, the last result remains saved at selected memory location. Note 1: Choose test current so that for the expected resistance you have maximum value of it. Note 2: Using DV-Win enables starting and controlling RMO100G from the PC. The results could be stored to PC. Using DV-Win after testings enables result transfer from the internal RMO100G memory to PC. Note 3: At the start of the test (Single, Continuous and CC), a check of cables connection is done. In case of disconnection, or erroneous polarity, an alarm is activated, and the error message is shown on the display. Voltage sense cables disconnection, occured during the test, will cause an erroreous result. The display will not show this as an error message. During tests the high continued DC current will heat up the test set. To prevent RMO100G from overheating, duty cycles apply. The duty cycles depend on the used test current, please refer to section "Duty Cycles".

5.2 Mains power and ground connectors Display UP/DOWN buttons to select a menu, define a test current and set test parameters RIGHT button to navigate in the active menu ENTER button to confirm the defined test parameters, Language, and Date and Time green LED • Lights continuously when RMO100G is turned on. • Flashes when a test can be started. • Flashes alternately with the red LED during a test. red LED • Lights continuously in case of operational error. • Flashes alternately with the green LED during a test. • Lights when assigned maximum value in Rmax menu is exceeded (or equaled) Connector for mains power supply Power switch I In this position, RMO100G is connected to the mains power supply. 0 In this position, RMO100G is separated from the mains power supply with both poles. Earth/ground connector For protection against parasitic currents or voltages, always connect RMO100G earth/ground connector to protective ground (PE). Use only the original cable. For safety reasons, always establish this connection as the first one before you do any other connections, and separate this connection as the very last one. STOP button to stop a test, to acknowledge the alarm buzzer and return to the current menu SET button to scroll between the menus START button to start the test current Ω button to save the current resistance value in Contin menu

select Settings menu. Pressing STOP to cancel, returns you to the Single menu. Setting RMO100G’s Language To set RMO100G‟s language, use the RIGHT button, and then ENTER button to select the Set Language menu. Move the cursor using the RIGHT button and select the language of your choice. Pressing ENTER to confirm, returns you to the Settings menu. Pressing STOP to cancel, returns you to the Settings menu. Setting RMO100G’s Date and Time To set RMO100G‟s date and time, use the RIGHT button, and then ENTER button to select the Set date and time menu. Move the cursor to the position of your choice using the RIGHT button, and change the value with the UP/DOWN buttons. Pressing ENTER to confirm, returns you to the Settings menu. Pressing STOP to cancel, returns you to the Settings menu. Setting Rmax To set RMO100G‟s Rmax value, use the RIGHT button, and then ENTER button to select the Set Rmax menu. In the Rmax menu, define the status of Rmax (On or Off) and assigned value of resistance. Figure 5-2: The Language menu Figure 5-3: The Date and Time menu showing RMO100G‟s internal date and time Figure 5-1: The Settings menu Figure 5-4: The Rmax menu

select is it Off (figure 5-4) or On. Using button RIGHT move cursor to the position of assigned value of resistance, and using UP/DOWN buttons select desired value between 1 µΩ and 9999 µΩ. First, initial value is 1000 µΩ (figure 5-4). When device is turned off and then turned on, RMO100G remembers last saved setting of Rmax value and status. Once these parameters are defined, press ENTER to change to the Settings menu.

6 Getting Started 6.1 Connecting a Test Object to RMO100G Before you connect a test object to RMO100G, make sure that: • the test object is disconnected or separated from its circuit in accordance with the national safety regulations, • the test object is properly grounded to protective earth (PE), • RMO100G itself is properly grounded. To do so, connect the grounding screw on the back of RMO100G‟s to PE using a grounding cable. To maximize accuracy and measurement repeatability; make sure that all clamps have a good connection to the test object and avoid any connection between Sense and Current clamps. On/Off Connect the earth/ground lead first before doing any connections to the test object. Connect the mains lead to a mains outlet 100 V – 240 V AC and turn on RMO100G with the power switch on the test set. The first shown on the display is the name of the product followed by the instrument model type and the internal firmware version. 6.2 Setting the Measurement Parameters Single Test Turn on RMO100G with the power switch on the test set. The display shows the Single menu and the green LED lights up. Before a test can be started, the following needs to be defined in the Single menu:  Test current; the following values can be chosen: 5 A, 10 A, 20 A, 30 A, 40 A, 50 A, 60 A, 80 A and 100 A.  Memory position, 000-499 Figure 6-1: Connecting a test object to RMO100G Figure 6-2: The Single menu Test current Memory position Time Menu name Date With RMO100G turned off, connect RMO100G to the test object (RX) in such a way that the measuring cables from the "Voltage Sense" sockets are attached as close as possible to RX, and in between the current feeding cables. That way, resistance of both cables and clamps is almost completely excluded from the resistance measurement. Pay attention to polarity while connecting measuring cables. Measuring results will be incorrect as a consequence of error.

In the Single menu, define a test current for the test (here 200A). To do so set the value of your choice by means of the UP/DOWN buttons. Using button RIGHT move the cursor to the memory location position, and using UP/DOWN select desired memory position to which obtained results would be saved. Once the test is completed the last measured result will remain registered in RMO100G, and the memory position is automatically switched over to the next memory position. The result can be recalled later by selecting that particular position number. Continuous Test Turn on RMO100G with the power switch on the test set. The display shows the Single menu. Go to Contin menu using SET button or four times RIGHT button and then UP button. Press STOP to return to Single menu. In the Contin menu, define a test current, memory location and test current duration time. Using RIGHT button move cursor to the position of test current, and using UP/DOWN buttons select desired value. Maximum duration of the current depends on its value, please refer tu section “Duty Cycles”. Using RIGHT button move cursor to the position of test current duration (here 60 sec), and using UP/DOWN buttons select desired value. Using button RIGHT move cursor to the position of memory location, and using UP/DOWN select desired memory position (here Memory: 020) to which obtained results will be saved. Upon performed test (either due to time expire or due to push to the STOP button) the last measured result will remain registered in RMO100G. Note: In case of PC and DV-Win software use during the test, all performed measurements will be registered. Results will be shown in a table in Excel format with option of additional edit and graphic presentation. Using DV-Win after testing for transfer of results from selected internal memory location to PC, it is possible to transfer only the result of the last test. Figure 6-3: The Contin menu

6.3 Measuring with RMO100G Single Test Before a test can be started, both test current and memory position need to be defined using the Single menu. Once these parameters are defined, press ENTER to change to the Ready state. The Ready state displays the test current and memory position defined. If one of these values has to be changed, press STOP to return to the Single menu. The flashing green LED indicates that RMO100G is now ready to start the test. Press the START button to run a test. At the start of the test, a cable connection check is done. In case of e.g. a disconnection, an alarm is activated and the error message is shown on the display. During the test, both the green and the red LEDs flash alternately. The display shows a graphical representation of the output current that ramps from 0 A to the defined maximum value (here 200A). Once the current ramp reaches its maximum value, RMO100G measures the current through the test object and the voltage at the test object for 1s, calculates the resistance from these values, and saves the data at the present memory position. Afterwards, RMO100G ramps down the output current from the max. value to 0 A. When 0 A is reached, the test is finished and the green LED lights up. Note: To stop the test prematurely, press the STOP button at any time during the test. The current will immediately drop to 0 A. Continuous Test Before a test could be started, test current, its duration and memory location must be defined using Contin menu. Press ENTER to change to the Ready state. The Ready state displays selected test current (here 100A), its duration (here 60 sec) and memory location of the result (here Memory: 020). If one of these values has to be changed, press STOP button to return to the Contin menu. The flashing green LED indicates that RMO100G is now ready to start the test. Press the START button to run a test. Figure 6-4: The Ready state before the test Figure 6-5: The Single menu during the test Figure 6-6: The Ready state before the test

During the test, both green and red LEDs flash alternately. The display shows test curent (here 100A) and the current value of the measured resistance (94,2µΩ). The time passed since the test begining is also shown on the display (00:35). Upon completed test (due to expire of selected time or due to push to the STOP button) at selected memory location the last measured result will remain registered. By pushing Ω button current test result is stored in internal memory. Note: In case of PC and DV-Win software use during the test, all performed measurements will be registered. Results will be shown in a table in Excel format with option of additional edit and graphic presentation. Using DV-Win after testing for transfer of results from selected internal memory location to PC, it is possible to transfer only the result of the last test. To stop the test prematurely, press the STOP button at any time during the test. The current will immediately drop to 0 A. 6.4 Connecting of current clamp meter and measuring with both sides grounded unit Measurement procedure Turn on RMO100G with the power switch on the test set. The display shows the Single menu. Go to CC menu by pushing SET button twice or using RIGHT button four times, DOWN button, RIGHT button three times and then DOWN button. Figure 6-7: The Contin menu during the test Using RMO100G with current clamp meter it is possible to make safer measurement of breakers with both sides of the breaker grounded. Measuring the current through the ground connection and reducing this value from the total current is an additional safety feature. When connecting current clamp meter pay attention that current circuit of the current clamp meter is enough far away form the rest of current circuits. In that way electromagnetic interference is prevented. Distance between current cables must be more than 10 cm. Figure 6-8: The CC menu

Define a test current through the circuit breaker (here 200A) and memory position (here Memory: 012). Once these parameters are defined, press ENTER to change to the Ready state. Press the START button to run a test. Upon completed test at selected memory location the measured result will remain registered. It is the current through circuit breaker (difference between total test current and current through current clamp meter), contact resistance of circuit breaker and the time when test is performed. When defined test current could not be reached, RMO100G displays maximum possible reached current. The accuracy of measured resistance in this menu is lower then accuracy in Single or Contin menu due to accuracy of current clamp meter. Connecting of current clamp meter Connect cables of the current clamp meter to the appropriate input terminals of device. By pressing the side button open the current clamp meters jaws and clamp one conductor only. The jaw must be firmly closed around the conductor. Make sure that conductor is passed through middle of the hole of current clamp meter. Make sure that the angle is 90 degrees between central axis of conductor and plane of hole of current clamp meter. The red LED light continuously indicates that current clamp meter works correctly. In case that red LED is blinking it is necessary to change the battery. Select current range of 1000A. The current clamp meter is ready to use. 6.5 Measurement parameters Accuracy given in the table is valid if the maximum possible current is used. Range Recommended Test Current Nominal Resistance Full Range Display Resolution Typical accuracy 1 100 A 1 mΩ 999,9 µΩ 0,1 µΩ ± 0,1 % rdg ± 0,1 % FS 2 100 A 10 mΩ 9999 µΩ 1 µΩ ± 0,1 % rdg ± 0,1 % FS 3 50 A - 100 A 50 mΩ 50,00 mΩ 10 µΩ ± 0,1 % rdg ± 0,1 % FS 4 20 A - 50 A 100 mΩ 99,99 mΩ 10 µΩ ± 0,1 % rdg ± 0,1 % FS 5 10 A - 20 A 250 mΩ 250,0 mΩ 0,1 mΩ ± 0,1 % rdg ± 0,1 % FS 6 5 A - 10 A 500 mΩ 500,0 mΩ 0,1 mΩ ± 0,1 % rdg ± 0,1 % FS 7 5 A 1 Ω 999,9 mΩ 0,1 mΩ ± 0,1 % rdg ± 0,1 % FS 6.6 Viewing the Test Results Once a Single or CC test is finished, RMO100G automatically changes to the Result menu to display the test results. For Continuous Test only the last performed test is shown. Note: If the defined test current could not be reached, this could be due to a too high contact resistance of the test object and/or of the current cables. The test current value displayed here is the maximum test current reached. The Result menu is displayed for 12 seconds and automatically goes back to the start menu. Figure 6-9: The Ready state

Now there are three choices: Starting a new test with the same current value: – press the ENTER button to change to the Ready state with same test conditions, – press the START button to run a test. The current value remains the same as in the previous test, the memory position increases by one. Starting a new test with a different current value: – press the STOP button to change to the starting menu (Single, Contin or CC), – set a new current value and/or another memory position, – confirm your entries by pressing the ENTER button, – start the test by pressing the START button. If the Rmax menu is set to option On, once a Single or CC test is finished, RMO100G automatically changes to the Rmax to display the test results in case the measured resistance is equal or greater than maximum assigned value. Figure 6-10: The Result menu showing the test results obtain in Single test Max. test current reached Memory position that holds the results Voltage drop on the test object Measured resistance of test object Figure 6-13: The Rmax showing the test results Figure 6-11: The Result menu showing the test results obtain in Continuous test Measured resistance of test object Test duration Memory position that holds the results Voltage drop on the test object Max. test current reached Figure 6-12: The Result menu showing the test results obtain in CC test Measured resistance of test object Memory position that holds the results Voltage drop on the test object Max. test current reached

For Continuous Test, first time when the measured resistance is equal or greater than maximum assigned value, RMO100G automatically stops the test and changes to the Rmax to display the last measured resistance equal or greater than maximum assigned value and time of obtaining that. The red LED lights continuously and the alarm buzzer is activated indicating that assigned maximum value in Rmax menu is exceeded (or equaled). 6.7 Viewing Results of Previous Tests RMO100G stores up to 500 test results. They can be viewed using the Memory menu at memory positions 000 ... 499. Selecting a memory position on the Memory menu displays: • the memory position of these results, • the test object‟s measured resistance, • the time of test (for continuous test), • the current fed into the test object, • the date and time, of this particular test. Figure 6-14: The Memory menu showing the previously saved test results of memory, position 012 for Single or CC test and 020 for Continuous test

6.8 Deleting Results of Previous Tests In the Memory menu, press ENTER. Press ENTER once more to delete all saved measurements from the memory positions. Press STOP to leave the Memory menu without deleting any measurements. 6.9 Duty Cycles During tests, RMO100G generates a high DC current that heats up the test set. To prevent RMO100G from overheating, certain duty cycles apply depending on the used test current. S i n g l e T e s t Test current (A) Cooling time between first 3 tests (sec) Cooling time after 4 tests (sec) 5, 10, 20, 30, 40, 50, 60, 80, 100 0 0 C o n t i n u o u s T e s t Test current (A) Maximal test duration time (sec) Cooling time (sec) 5, 10, 20, 30, 40, 50, 60, 80, 100 300 0 A built-in control prevents these cooling times from being skipped. If you try to start a test within the cooling period, the display shows "Wait" and a timer counting down. After the cooling period has elapsed, start the test using the set test parameters by pressing the START button. Cooling of RMO100G is supported by a built-in fan that is automatically activated every time a test is started from the Ready state. It continues running 5 minutes after the test is finished. Table 6-16: Cooling time between single tests Figure 6-15: The Memory menu showing an option to delete all saved measurements from the memory positions Table 6-17: Cooling time between continuous tests

7 DV-Win Software DV-Win is a Windows program for working with Micro-Ohmmeters RMO series. It enables the two- way communication RMO – PC over USB port. Microsoft Office Excel program must be installed on the PC. DV-Win supports the following functions: - Controlling and starting RMO when the tests are performed from the PC, the results could be stored to PC; results reading interval is adjustable, - The transfer of the test parameters from the local RMO memory to the PC with the possibility of writing the notes on objects being measured and appropriate comments. Note: Using DV-Win software, a device RMO device must be operated only from the DV-Win. The transferred data from RMO is possible to: - Display in the form of tables, - Download as an Excel file. Every test reading parameters contain: - The date and the time of the test, - The real test-current, - The voltage on the voltage terminals (Voltage Sense), - The measured resistance value, - The memory location, - The name of the object (tested device) and the useful comments. 7.1 The minimum system requirements Processor : Recommended > 500 MHz Memory : min 32 Mb Operating system : Windows XP, Windows Vista, Windows 7 7.2 DV-Win installation To install the DV-Win software do the following: - Put the DV-Win installation CD in the CD-ROM drive, - Click on ”Start”, - Click on ”Run”, - Click on ”Browse”, - Select the CD-ROM drive, - Highlight the ”DV-Win.EXE”, - Click on ”Open”, - Click on ”OK”, - Follow the instructions displayed on the screen, - When the installation process has been finished - exit the program.

7.3 Starting DV-Win Connect the USB port of the RMO Micro OhmMeter and the PC, with a USB cable. Turn RMO on. Start DV-Win: - Click on ”Start”, - Click on ”Programs”, - Click on ''DV-Win‟‟, - Click on „‟DV-Win‟‟, or duble click at icon on the desktop. The look of the DV-Win main menu is shown in the following illustration. Now the RMO device can be controlled from the PC. The test mode is started by pressing icon “Start new test”.

DVWin-RMO interface consist of main menu, three tabs (Test info, Test settings, Download), status bar, toolbar and a table used for displaying results. 7.4 Test info Test info tab contains fields with information about circuit breaker under test, operator, and environment conditions. I you are using the instrument for the first time, all fields will be blank and you will need to enter these information. Once you save the measurement results these information are also saved. Test info tab will be automatically populated when measurement results from .dwo (internal DV-Win file format) file are loaded. Clear All button on this form will instantly clear all data written in test info fields. Note: Test info fields don't need to be filled in order to do the testing with RMO devices. 7.5 Test settings The test settings tab contains test parameters and it is used to start new test or to stop test in progress. This section briefly describes test parameters functions. Operation mode:  Single - selects Single operation mode. Test is performed for fixed period of time. User can only select desired test current and memory position for test.  Continuous - selects Contin operation mode. Test is performed for up to 300 seconds. User can select actual test duration, test current, memory position and interval for this test. Omega button is available and visible only in this mode after the test is started.  CC - selects CC (Current Clamp) operation mode. This test allows using Current Clamps for testing. Test Settings:  Test curent - this field is used to set the test current. Test current is limited by RMO technical capabilities. Check your RMO manual for further information.  Test duration - this field sets the duration of test in seconds. Test duration can be set in Continuous operation mode only. Single and CC operation modes are performed for fixed amount of time.  Memory position - determines the memory location where the results of performed test are saved. Memory position counter is increased automatically after each test. Memory position can also be set manually by user

 Interval - Interval field allows user to record test results in specific time intervals set in seconds. This field is unlocked only for Continuous mode of operation. Default interval setting denotes that measurement will be recorded only once when the test is completed.  OMEGA - This button performs function of the omega button on RMO instruments, ie. it records last measurement on click. Omega button is available and visible only in Continuous mode of operation.  Use standard parameters - If checked, this checkbox allows user to use standard fixed discrete test parameters previously used in older DV-Win software for RMO devices. If unchecked, user can manually enter desired test values for Test current and Test duration fields. DV-Win RMO is designed to automatically set safe test parameters, if user unintentionally inputs non-allowed test parameter values, so no harm can be done to the RMO device. 7.6 Download The download tab allows user to transfer recorded measurements from RMO Device to personal computer. Download is initiated by pressing Start button and it can be stopped at any time by pressing Stop button. During data transfer progress bar will indicate transfer progress. Measurements can be selectively downloaded by specifying date, date range, memory positions, current range or by specifying test mode. 7.7 Rmax Settings Rmax settings are available via Tools - Rmax Settings menu. Rmax function of RMO devices is used to detect when specific circuit breaker resistance value is reached during measurement. If Rmax value is detected, RMO device will automatically stop performed test. This function is unchecked by default settings.

Rmax function is activated by checking Rmax function checkbox. Rmax value can be set in the range of 0 - 9999 microOhms. If Rmax value is detected, DV-Win RMO software will display notification in status bar and RMO device will emit specific sound signal. 7.8 Measurement Units Measurement units in DV-Win RMO software are available via Tools - Measurement units menu. Resistance measurement values can be shown in: microOhms, miliOhms and Ohms. Current measurement values can be shown in: miliAmpers and Ampers. Voltage measurement values can be shown in: miliVolts and Volts. Measurement results are automatically updated as selected in measurement units window. 7.9 Status Bar Status bar is located above the measurement results and it is always visible to user. Status bar displays current state of the RMO device. Depending of the current state status bar will signal one of the following: Ready state: Rmax detection: Setting test parameters: Test in progress: Demagnetization in progress: Device in cooling down mode: Error detected (error description): Download in progress:

8 Remote Control The RMO Remote Control Unit is an optional control unit that is used to start and stop the tests from a remote location, away from the actual RMO. Very often the same test current is fed through the test object for a series of tests. To simplify this and speed up the process, multiple measurements can be carried out with the RMO Remote Control Unit. Otherwise, the test current setting needs to be changed on the RMO for each new test. 8.1 Connecting the Remote Control Unit to RMO and Test Object Turn off RMO and plug in the Remote Control Unit to connector on the RMO‟s front panel. Connect the Remote Control Unit to the test object (RX) in such a way that the measuring cables from the "Voltage Sense" sockets are situated as close as possible to RX, and in between the current feeding cables from RMO. That way, both the cable‟s and the clamps‟ typical contact resistance is largely excluded from the resistance measurement. Note: Never connect the Remote Control Unit to any other device but RMO.

8.2 Operational Components 8.3 Measuring with the Remote Control Unit Testing with the Remote Control Unit is much like the testing procedure with RMO itself, and is therefore only outlined here: – Connect the Remote Control Unit to RMO, – Connect the Remote Control Unit to a test object, – In the RMO Single menu, define a test parameters for the test, and press ENTER to change to the Ready state, – The flashing green LED indicate that RMO is now ready to start the test. – Press the Ω/STOP button once more to start the test. While the test is running, the green and red LED flash alternately. To stop the test prematurely, press the Ω/STOP button once more. Once the test is finished, RMO automatically changes to the Result menu to display the test results. The green LED lights up continuously. If an error occurred during the test, the red LED lights up continuously, and the display presents the according error message. Provided that, for a series of tests, the same test current is fed through the test object, multiple tests can be carried out with the Remote Control Unit. Simply press the Ω/STOP button again to repeat the procedure. If different test parameters are required, set them on RMO directly, and start the new test by pressing the Ω/STOP button again. Sockets to connect the Remote Control Unit directly to a test object "Voltage Sense +" and "Voltage Sense -" Depending on the situation, the Ω/STOP button has varying functions: • When the green LED flashes a new test can be started by pressing this button • When the green LED lights continuously, pressing this button will prepare RMO for a new test, using the test parameters set on RMO. • While a test is running (the green and the red LEDs flash alternately), pressing this button stops the test immediately. The LEDs of the Remote Control Unit function synchronized with the ones of RMO. Green LED • Flashes when a test can be started. • Flashes alternately with the red LED during a test. • Lights continuously when a test is done. Red LED • Flashes alternately with the green LED during a test. • Lights continuously in case of operational error.

9 Error Messages Any operational error is indicated by a red LED and accompanied by an alarm. Furthermore, the display indicates an error status message. To stop the alarm buzzer, remove the status message on the display, and return to the Single menu, press the STOP button. 9.1 Error Message "Connection VS" Note: Voltage sense cables disconnection, occured during the test, will cause an erroreous result. The display will not show this as an error message. 9.2 Error Message "Open Connection" Figure 9-1: Disconnection of a "Voltage Sense" cable and error message If one of the "Voltage Sense" cables to the test object is disconnected, on either the test set or the test object side at the start of the test, the error message "Connection VS" is displayed. Figure 9-2: Disconnection of the current cables and error message If one of RMO100G current cables ("+" or " -") to the test object is disconnected, on either the test set or the test object side at the start or during the test, the error message "Open Connection" is displayed.

9.3 Error Message " Polarity" This message is displayed if the polarity of measuring cables is incorrect. In this case connect measuring cables correct and repeat the test. 9.4 Error Message "Change Current" This message is displayed if during the test the voltage at the test object exceeds 5 V. In this case reduce the test current and repeat the test. 9.5 Error Message "Overheat" This message is displayed when RMO100G‟s operating temperature rises too high due to a high ambient temperature or, despite the duty cycle time control, too many high current tests were performed in too short of a time. In this case, wait for the test set to cool down and repeat the test. 9.6 Error Message "Malfunction" If this message is shown on the display, or if RMO100G cannot be operated anymore at all, a serious internal error occurred. Please do not open RMO100G by yourself. Contact the IBEKO Power AB (refer to section ”Manufacturer Contact Information”). Figure 9-5: Error message "Overheat" Figure 9-3: Error message "Polarity" Figure 9-4: Error message "Change Current" Figure 9-6: Error message "Malfunction"

9.7 Error Message "Mains Voltage < 90V" This message is displayed when RMO100G‟s mains voltage is below 90 V. In this case to remove the status message you must restart RMO100G. Figure 9-7: Error message "Mains Voltage < 90V"

10 Technical Data 10.1 Mains Power Supply - Connection according to IEC/EN60320-1; UL498, CSA 22.2 - Voltage single phase from 90 V to 264 V AC; 50 - 60 Hz - Frequency 50 / 60 Hz - Fuse 15 A 10.2 Output data - Test current 5 A – 100 A DC - Tipycal Accuracy ± 0,1 % rdg ± 0,1 % FS 10.3 Environmental conditions - Operating temperature - 10 oC - + 55 oC / 14 oF- + 131 oF - Storage temperature - 25 oC - + 70 oC / - 13 oF- + 158 oF - Humidity 5 %– 95 % relative humidity, non condensing 10.4 Dimensions and Weight - Dimensions 410 x 180 x 320 mm (W x H x D) 16,14 x 7,08 x 12,59 in - Weight 8,5 kg / 18,7 lbs 10.5 Safety Standards - European standards EN 61010-1 LVD 73/23/EEC - International standards IEC 61010-1 UL 3111-1 CAN/CSA-C22.2 No 1010.1-92 10.6 Electromagnetic Compatibility (EMC) CE conformity EMC standard 89/336/EEC Emission EN 50081-2, EN 61000-3-2/3 Interference Immunity EN 50082-2 10.7 USB Interface RMO100G is equipped with an USB serial interface to connect to an external computer.

11 Accessories Recommended Current cables 2 x 5 m, 16 mm2 with battery clips Sense cables 2 x 5 m with alligator clips DV-Win PC software including USB cable Mains power cable Ground cable Cable bag Additional Remote Control Unit with 9 m cable Test shunt 100 µΩ (600 A/60 mV) Current cables 2 x 10 m, 16 mm² with battery clips Current cables 2 x 15 m, 25 mm² with battery clips Current extension cable 2 x 10 m Sense cables, extension 2 x 10 m Sense cables 2 x 10 m with alligator clips Sense cables 2 x 15 m with alligator clips Built-in thermal printer Both sides grounded unit Manufacturer Contact Information IBEKO Power AB Box 1346, 181 25 Lidingö, Sweden Fax: + 46 8 731 77 99 E-Mail: [email protected] Website: http://www.dv-power.com