DV Power RMO-H User Manual Download

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Micro ohmmeter RMO-H

Handheld Micro Ohmmeter

RMO-H

Manual

Manual Version: M-

RH00NN-300-EN

This Manual refers to the firmware version 1.0x
Publishing date: 2018-01-10

Summary of Contents for RMO-H

Page 1: ...Micro ohmmeter RMO H Handheld Micro Ohmmeter RMO H Manual Manual Version M RH00NN 300 EN This Manual refers to the firmware version 1 0x Publishing date 2018 01 10...

Page 2: ...Sides Grounded BSG Circuit Breaker 11 3 4 Settings 12 3 5 Measuring with RMO H 14 3 6 Measurement parameters 16 4 Error Messages 16 4 1 Error Message SD Card Initiation Failed 16 4 2 Error Message Co...

Page 3: ...ty instructions carefully It is not recommended the RMO H being used or even turned on without careful observation of the instructions listed in this Manual The RMO H should only be operated by traine...

Page 4: ...original accessories for the device s intended use only 1 1 4 Device maintenance Device should be kept in a clean condition to prevent excessive dust or other contaminants affecting its operation It...

Page 5: ...mmeter RMO H is a portable handheld device designed for measuring contact resistances of non inductive test objects used in the electric power industry or similar branches It is employed for resistanc...

Page 6: ...iminated The RMO H instrument can store internally up to 1000 measurements The results are saved on the micro SD card All measurements are time and date stamped DV Win software enables download and an...

Page 7: ...device 5 Protective Earth Connector Used for protection against parasitic currents or voltages 3 Current output terminal 6 Charger Connector 7 Connectors for the voltage sense cables Standard banana...

Page 8: ...ring and after a test operation Keyboard 3 Getting Started 3 1 Connecting RMO H to Test Object NOTE Cables should be connected and removed to from RMO H device ONLY when the RMO H is switched off CAUT...

Page 9: ...ding screw of the RMO H to a PE using only the manufacturer provided grounding cable When testing high voltage circuit breakers with RMO H a different cable s length could be used The short cable red...

Page 10: ...er test lead current and voltage sense cables labeled with black color When testing MV Circuit Breakers it is convenient to use Current and Sense cables with Kelvin probes Figure 3 2 Connecting RMO H...

Page 11: ...contacts can be corrected if the resistance of the grounding loop is known or measured The procedure is described in Application Note originally published by DV Power IBEKO Power AB in Year 2011 Main...

Page 12: ...d The UP and DOWN buttons are used for navigation and the ENTER button for entering the selected submenu Setting Memory To set default memory location on RMO H please use ENTER button to activate the...

Page 13: ...last saved setting of an Rmax value and a status Once these parameters are defined press ENTER to return to the Settings menu Setting Time Date To set RMO H s date and time please use the UP DOWN but...

Page 14: ...h field is selected When Bluetooth is activated the screen looks like in the figure below green colored status 3 5 Measuring with RMO H The start screen for setting the measurement parameters is prese...

Page 15: ...eater than maximum assigned value the result will be displayed in red color as presented in the figure below In case the measured resistance is lower than set Rmax value the result will be displayed i...

Page 16: ...ltage 3 7 V 25 C ambient temperature and use of recommended accessories 4 Error Messages Any operational error is indicated by an error status message 4 1 Error Message SD Card Initiation Failed The R...

Page 17: ...or during the test the error message Open Connection is displayed Note The error message Open Connection can be displayed not only in case one of the current cables is disconnected but also in case o...

Page 18: ...test shunt resistance value Declared accuracy of the test shunt Result measured with the instrument resistance voltage drop and generated current 5 2 Battery check If it is suspected that the device i...

Page 19: ...dware configuration and software revision Exact description of the problem including the test object information error messages and the sequence of events before it appeared List of solutions that hav...

Page 20: ...ents should be sent to DV Power freight pre paid unless other arrangements have been authorized in advance by DV Power Customer Service To prepare an instrument for shipment please follow these instru...

Page 21: ...Output voltage 3 7 V DC nominal 4 1 V max Measurement Resistance range 0 2000 m Resolution 0 1 999 9 0 1 1 000 9 999 m 0 001 m 10 00 99 99 m 0 01 m 100 0 999 9 m 0 1 m 1000 2000 m 1 m Typical accurac...

Page 22: ...chanical Protection Ingress Protection Rating IP54 Environmental conditions Operating temperature 10 C 55 C 14 F 131 F Storage transportation 40 C 70 C 40 F 158 F Humidity 5 95 relative humidity non c...

Page 23: ...nd 10 m black with TTA clamps 220 A rated CS 1Z310 35CLWC Current cables 2 x 1 3 m 25 mm2 with battery clamps 300 A rated C2 1Z3 25CLB1 Sense cables 2 x 1 3 m with alligator clamps A2 S2 1Z3 02BPA2 Cu...

Page 24: ...sumes no responsibility for errors or omissions or for damages resulting from the use of the information contained herein IBEKO Power AB cannot take over liability resulting in any way from the use of...