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Related Manuals for Sonel MMR-620
Summary of Contents for Sonel MMR-620
- Page 1 LOW-RESISTANCE METER MMR-620 OPERATING MANUAL Revision 1.6...
- Page 2 We appreciate your having purchased our low-resistance meter. The MMR-620 meter is a modern, high-quality measuring device, which is easy and safe to use. Please acquaint yourself with the pre- sent manual in order to avoid measuring errors and prevent possible problems related to operation of the meter.
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Page 3: Table Of Contents
UTOMATIC SAVING OF MEASUREMENT RESULTS IN THE MEMORY .....................24 EMORY BROWSING ....................24 EMORY ERASING POWER SUPPLY ....................26 .............26 ONITORING OF THE POWER SUPPLY VOLTAGE ..............26 EPLACEMENT OF ACCUMULATORS ................27 HARGING OF ACCUMULATORS ......29 ENERAL PRINCIPLES REGARDING USING ACCUMULATORS CLEANING AND MAINTENANCE..............31 OPERATING MANUAL MMR-620 Revision 1.6... - Page 4 STORAGE ......................31 DISMANTLING AND UTILIZATION..............31 ATTACHMENTS....................32 ....................32 ECHNICAL DATA ..................33 TANDARD ACCESSORIES ...................33 DDITIONAL ACCESSORIES ....................34 ANUFACTURER LABORATORY SERVICE...................35 OPERATING MANUAL MMR-620 Revision 1.6...
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Page 5: Safety
Safety The MMR-620 meter has been designed to realise measurements of resistance of dif- ferent kinds of connections (welded, soldered, contact connections) in electric installations. The results of the measurements determine the safety conditions of the installation. There- fore, in order to provide conditions for correct operation and the correctness of the obtained results, the following recommendations must be observed: •... -
Page 6: Menu
Menu Menu The menu is available at any position of the knob but MEM. OPERATING MANUAL MMR-620 Revision 1.6... -
Page 7: Lcd Contrast
If the required accessories such have not been purchased along with the meter, then they are available from the manufacturer or an authorised distributor. The accessories may be used in case of many devices manufactured by SONEL S.A. which are equipped with the RS-232 interface. -
Page 8: Result Display Configuration
In the mode of automatic saving of the result in the memory, it is possible to view for three seconds the set limits pressing the ESC button. The limits of the acceptable range of the measurement results is set in MENU: OPERATING MANUAL MMR-620 Revision 1.6... - Page 9 Menu Result display configu- ration OPERATING MANUAL MMR-620 Revision 1.6...
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Page 10: Default Settings
– normal, • memory entry – manual, • limits in the window mode: upper limit – 199,9 , lower limit – 0 , • window mode off, • result display – all results. OPERATING MANUAL MMR-620 Revision 1.6... -
Page 11: Selection Of The Language
The user may perform manual calibration of the meter, provided they have standard calibration resistors, minimum grade 0.05%, of the following nominal values: 0,2mΩ, 2mΩ, 20mΩ, 200mΩ, 2Ω, 20Ω, 200Ω and 2kΩ. Calibration is performed separately for each range. OPERATING MANUAL MMR-620 Revision 1.6... -
Page 12: Auto-Calibration
Install and start the meter programming software in the computer, • In the programme select the port, activate the „Test connections” function, and then start the Programming function, • Proceed ion accordance with the instructions displayed by the programme. OPERATING MANUAL MMR-620 Revision 1.6... -
Page 13: Information On The Manufacturer And The Programme
In order to obtain basic information on the manufacturer of the meter and the version of manufac- the programme, perform the following actions: turer and • in MENU select About producer & programme, pro- gramme • press the button OPERATING MANUAL MMR-620 Revision 1.6... -
Page 14: Measurements
3.1.1 Selection of the type of object ject The MMR-620 meter permits selection of one of the three types of objects: The measurement marked with the symbol is the shortest measurement (3s) and its purpose is to test objects of purely resistance-related character. -
Page 15: Flow Of Current
R is not displayed. 3.1.3 Measurement triggering Meas- urement The MMR-620 meter has three modes of measurement triggering: normal, automatic triggering and continuous. • In the normal mode one measurement of resistance is performed. -
Page 16: Saving To Memory
For the purpose of measurement of the resistance of the object the MMR-620 meter ap- plies measurement currents within the range between 0.1mA and10A. The measurement range and thus the measurement current may be selected automatically or manually. -
Page 17: Connection Of The Meter And Start Of Measurements
Connec- Connection of the meter and start of measurements tion and meas- urement NOTE! Connection of a voltage exceeding 440VAC between any two measurement termi- nals may cause damage to the meter. OPERATING MANUAL MMR-620 Revision 1.6... - Page 18 Meas- ure- ments Connec- tion and meas- urement Connec- tion Range selection The appearance of the screen may differ depending on the configuration of MENU – Measurement mode. Appear- ance of screen Meas- urement OPERATING MANUAL MMR-620 Revision 1.6...
- Page 19 ESC. ure- Depending on the measured object, the measurement may last between 3s ( ments to a couple of minutes ( Connec- tion and meas- urement Meas- urement Reading of results OPERATING MANUAL MMR-620 Revision 1.6...
- Page 20 Indication of the charge of accumulators. Accumulators are low, they must be charged. Accumulators completely discharged, the measurement is blocked. Symbols of a resistance-type object. Symbols of an inductive object (normal measurement time for this type). OPERATING MANUAL MMR-620 Revision 1.6...
- Page 21 A message and two long sound signals after the in I circuit! START button is pushed. Unstable conditions due to incorrect contact of the measure- Unstable conditions! ment leads or excessive inductivity of the object, which pre- clude measurements. OPERATING MANUAL MMR-620 Revision 1.6...
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Page 22: Memory Of The Measurement Results
Memory Memory of the measurement results MMR-620 meters are equipped with a memory of 990 resistance measurement re- sults. The location within the memory where a single result is saved is called a memory cell. The whole memory is divided into 10 banks comprising 99 cells. Each result may be... -
Page 23: Automatic Saving Of Measurement Results In The Memory
- In the automatic mode of measurement release after a modification of the number of the bank or cell, exit the setting mode using the button or ESC, or start the first measure- ment using the button START. OPERATING MANUAL MMR-620 Revision 1.6... -
Page 24: Memory Browsing
Memory Memory browsing Brows- Erasing Memory erasing OPERATING MANUAL MMR-620 Revision 1.6... - Page 25 Mem- Erasing OPERATING MANUAL MMR-620 Revision 1.6...
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Page 26: Power Supply
Replacement of accumulators Replace- ment of The MMR-620 meter is equipped with a package of NiMH accumulators and accumu- charger. Those accumulators have a series of advantages, such as lack of harmful sub- lators stances, no memory effect, higher capacity as compared to NiCd accumulators at the same size. -
Page 27: Charging Of Accumulators
When the charger power supply cable is plugged into a socket one of the following screens is displayed. If the charge of the accumulators does not exceed 50%, then the a) screen is displayed. If the charge of the accumulators exceeds 50%, then the b) screen is displayed. OPERATING MANUAL MMR-620 Revision 1.6... - Page 28 The end of the proc- ess of charging is signalled by: Charging completed. In order to turn the device off, re- move the power supply plug of the charger. OPERATING MANUAL MMR-620 Revision 1.6...
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Page 29: General Principles Regarding Using Ni-Mh Accumulators
The temperature of the environment in the case of prolonged storage should not exceed 30° C. If the accumulators are stored for a long time in a high temperature, then the occurring chemical processes may reduce their lifetime. OPERATING MANUAL MMR-620 Revision 1.6... - Page 30 - Do not charge or use accumulators in extreme temperatures. Extreme temperatures re- duce the lifetime of batteries and accumulators. Avoid placing devices powered from ac- cumulators in very hot environments. The nominal working temperature must be abso- lutely observed. OPERATING MANUAL MMR-620 Revision 1.6...
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Page 31: Cleaning And Maintenance
Before the equipment is sent to a collection point, do not dismantle any elements. Observe the local regulations concerning disposal of packages, worn-out batteries and accumulators OPERATING MANUAL MMR-620 Revision 1.6... -
Page 32: Attachments
Protection grade of the casing in accordance with PN-EN 60529 ......IP54 d) Protection from external voltage ............ up to 440Vac for 10s e) Power supply of the meter ..package of ACCUMULATORS SONEL/NiMH 4,8V 3Ah Power supply of the charger ..........100..250V/50..60Hz, 200mA g) Charging time ................ -
Page 33: Standard Accessories
Additional accessories sories Furthermore, the manufacturer and authorised distributors offer the following elements which are not included in the basic accessories package: WAZACKEL1 WAADAUSBRS232 • • USB/RS232 adapter Kelvin clamp with a double cable OPERATING MANUAL MMR-620 Revision 1.6... -
Page 34: Manufacturer
Addi- tional acces- sories • • SONEL Schematic software to create drafts, Software SONEL Electric Measurements – for and electric installations diagrams the purpose of development of complete documentation of measurements WAPROKALK • SONEL PE Kalkulacje software to create... -
Page 35: Laboratory Service
10 Laboratory service The SONEL S.A. measurement laboratory offers revisions of the following devices related to electric values measurements: The laboratory issues calibration certificates for insulation resistance measurement meters, The laboratory issues calibration certificates for earth resistance measurement meters, The laboratory issues calibration certificates for short-circuit measurement meters,...
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