Sonel MPU-1, Operating Manual

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Page 3: ...OPERATING MANUAL MPU 1 LEAKAGE CURRENT ALARM SIGNALER SONEL SA ul Wokulskiego 11 58 100 Świdnica Poland SONEL TEST MEASUREMENT Inc Santa Clara Ca 95054 www soneltest com Version 1 4 9 15 2016 ...

Page 4: ...ternal rechargeable battery 11 6 3 Connecting the device 11 6 4 Operating the interface 12 6 4 1 Monitoring leakage current with Alarm on mode 12 6 4 2 Displaying and Measuring Leakage Current in Alarm off mode 15 6 4 3 Setting the AC current frequency 16 6 4 5 Info Mode Activation of the Acoustic Signal 18 6 4 6 Changing the language 19 6 4 7 Reset function 21 7 Troubleshooting 22 7 1 Warnings an...

Page 5: ... 1 5 3 10 Storage 25 11 Dismantling and Disposal 25 12 Technical specifications 25 12 1 Basic data 25 12 2 Other technical specifications 26 13 Accessories 26 13 1 Basic accessories 26 13 2 Optional accessories 26 14 Manufacturer 28 ...

Page 6: ...any other protection measures in the workplace and or personal protection equipment used by employees and must not be relied upon as a sole safety and protection measure Appropriate occupational health and safety regulations must be observed along with other instructions rules and safety measures in accordance with local or national regulations WARNING The leakage current alarm signaler is designe...

Page 7: ...nly by qualified persons that have passed occupational health and safety training Do not use or operate the MPU 1 under the following circumstances The MPU 1 is damaged completely or partially out of order or has been dropped or subjected to physical abuse or shock The insulation of the test leads are damaged The MPU 1 has been stored for an excessive period of time in excessive humidity or heat B...

Page 8: ...rect currents Measurements are made with Sonel flexible F series current probes of Rogowski coil design Probes of various diameters can be used without the need to re calibrate the MPU 1 for each probe The enclosure is ergonomically designed and carries an IP 67 rating Protection from ingress against dust and immersion to 1m Battery charge status is monitored An LED indicates operation mode 4 2 Ar...

Page 9: ...s in operational mode LED is red device error additional error code is displayed as described below LED flashes red low battery charge level Battery charging mode when connected to AC charger LED flashes green battery charging LED is green battery is fully charged 5 Buttons A set of cursors with auto repetition for choosing MENU options and changing settings 6 Alarm LEDs A set of red alarm LEDs ar...

Page 10: ...ed for measurements with a single probe The battery charger also connects to this socket it has the same pronged connector Unused socket should be covered with the flexible socket cover 8 Measuring Probe 2 To connect a second Sonel F Series Rogowski type current probe Used for measurements with a two probes Unused socket should be covered with the flexible socket cover When using two probes the MP...

Page 11: ...tteries should be re charged If allowed to continue the MPU 1 will turn off automatically Short beeps with active Info option Indicates when the Info function is turned ON The signal repeates approx every 60 seconds 4 5 Measuring Current with Flexible F Series Probes The MPU 1 is calibrated at the factory with Sonel F Series probes Probe models compatible with MPU 1 are listed in Chapter 13 Access...

Page 12: ...device the operating mode and alarm threshold Ensure the MPU 1 displays results 6 Operation Read this chapter thoroughly as it describes metering circuits measurement methods settings and other important issues 6 1 Preparing MPU 1 for operation Before performing measurements Make sure that the battery is fully charged Check the device and accessories for damage Check the probes are connected secur...

Page 13: ...the power supply see Chapter 8 Power supply of the device 6 3 Connecting the device CAUTION Pay attention to the correct connection of plugs of the clamps as the accuracy of the measurements depends on the connection quality Ensure connections are secure and making good contact and will provide uninterrupted measurement of current CAUTION Connecting voltage higher than 25V between any of the test ...

Page 14: ...s equal to BACK CANCEL button Any changes selected options are confirmed by pressing ENTER 6 4 1 Monitoring leakage current with Alarm on mode The usual mode of operation of the MPU 1 is with Alarm on When the MPU 1 is turned on it always begins in Alarm on mode To monitor leakage current flowing proceed as follows Connect current probes to the socket 7 Probe 1 to perform single probe measurement ...

Page 15: ...of the measured current the bottom line also indicates whether the measured current is lower I equal I or higher I than the threshold setting The MPU 1 measures and monitors AC currents of 50Hz or 60Hz depending on user settings When the measured current exceeds the alarm threshold setting both a sound and a visual alarm will be Press MENU button Use buttons to select Alarm Confirm your choice by ...

Page 16: ...arm is indicated by flashing LEDs on the MPU 1 To set the alarm threshold setting for leakage current Press MENU button Use buttons to select Current Confirm your choice by pressing ENTER button Use buttons to select the cur rent value above which the alarm will be triggered Confirm your choice by pressing ENTER button ...

Page 17: ... 4 2 Displaying and Measuring Leakage Current in Alarm off mode The MPU 1 can be used to measure and display leakage current without the monitoring and alarm function Alarm off mode Note that whenever the MPU 1 is turned on it is always first activated in Alarm on mode To measure and display the leakage current in Alarm off mode Connect probes to the socket Probe 1 7 to perform single probe measur...

Page 18: ...Pressing MENU button results in exiting the current MENU option without confirming the selected value s Its function is equivalent to BACK CANCEL Remember to press ENTER to confirm a selection 6 4 3 Setting the AC current frequency To set the nominal AC frequency of the network for the equipment being measured as either 50Hz or 60Hz in Alarm on mode or in Alarm off mode Press MENU button Use butto...

Page 19: ... be in the last setting state when turned ON again 6 4 4 DEMO function The DEMO function is intended to demonstrate the alarm signal to users and personnel responsible for electrical safety After selecting the DEMO function the device enters alarm mode for 5 sec To start DEMO mode Use buttons to select Frequency Confirm your choice by pressing ENTER button Use buttons to select 50Hz or 60Hz Confir...

Page 20: ...DEMO mode 6 4 5 Info Mode Activation of the Acoustic Signal The Info function enables user to turn on an acoustic chirp signal that indicates that the device is activated and operational The chirp repeats approx every 60s Select On from Info menu to activate the Info mode Select Off disables this function Press MENU button Press MENU button Use buttons to sel ect Demo Confirm your choice by pressi...

Page 21: ...interrupted during the charging process and when the user presses the MENU button The last setting of Info function is saved and remembered by the device even after it is turned OFF and ON again 6 4 6 Changing the language The Language function is used to change the user language Use buttons to select Info Confirm your choice by pressing ENTER button Use buttons to select On or Off Confirm your ch...

Page 22: ...n Note Interface language versions may differ from each other not only by language but also by functionality or operational features After changing the language follow the instructions for the activated language Use buttons to select Lan guage Confirm your choice by press ing ENTER button Use buttons to select desired language Confirm your choice by pressing ENTER button ...

Page 23: ...sables the Info function The mains network frequency resets to 50Hz NOTE The language settings remain unchanged After pressing ENTER the meter will reset and turn off then on again automatically Press MENU button Use buttons to select Reset Confirm your choice by pressing ENTER button Use buttons to select Yes to reset settings or No to cancel Confirm your choice by pressing ENTER but ton ...

Page 24: ... battery charging process Stop the charging process Move the MPU 1 to a higher ambient temperature and re charge If the problem persists contact Sonel s local service provider Err 311 Temperature of rechargeable battery is too high Occurs during the battery charging process Stop the charging process Move the MPU 1 to a lower ambient temperature and re charge If the problem persists contact Sonel s...

Page 25: ...red status LED indicates that the supply voltage is too low and batteries need to be recharged Extremely low battery charge level is indicated by two long beeps with alarm LEDs flashing repeated every 15 seconds When Low battery charge level is indicated the device should be switched off or it will switch off automatically Measurements performed with low supply voltage will introduce additional er...

Page 26: ... the batteries the shorter their lifetime The memory effect is limited in the case of Ni MH batteries These batteries may be charged at any point with no serious consequences However it is recommended to discharge them completely periodically During storage of Ni MH rechargeable batteries they will discharge at the rate of approximately 30 per month Keeping rechargeable batteries at high temperatu...

Page 27: ...connect all the test leads from the device Thoroughly clean the device and its accessories To prevent total discharge of the rechargeable batteries due to the prolonged storage charge them periodically Storage temperature conditions must be observed 20 C to 80 C 4 F to 176 F 11 Dismantling and Disposal Scrap and disused electronic equipment must not be placed with waste of another kind and should ...

Page 28: ...perature 10 C to 95 C 14 F to 122 F k Reference temperature 23 C 73 F l Storage temperature 20 C to 80 C 4 F to 176 F m Relative humidity 20 to 85 n Nominal relative humidity 40 to 60 o Altitude above sea level 2000m 6562ft p Design construction and manufacturing are ISO 9001 compliant q Meets EMC requirements according to EN 61326 1 2013 and EN 61326 2 2 2013 13 Accessories 13 1 Basic accessories...

Page 29: ...rence of 120 cm 16 in 48 in F 2 Probe 1000A Flexible probe F 2 Rogowski coil with a diameter of 25 cm circumference of 80 cm 10 in 32 in F 3 Probe 1000A Flexible probe F 3 Rogowski coil with a diameter of 13 cm circumference of 45 cm 5 in 18 in F 4 Probe 1000A Flexible probe F4 Rogowski coil circumference length of 200 cm 79 in Charger Charger for charging the battery from 12V car socket ...

Page 30: ...EL TEST MEASUREMENT Inc Santa Clara CA USA Tel 408 988 1346 Fax 408 988 4869 E mail office soneltest com Web page www soneltest com Made in Poland Note Service repairs must be performed only by Sonel or an authorized Sonel service center ________________________________________________________________________________ Note Due to constant product development Sonel S A reserves the right to change t...

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