2 OPERATING MANUAL MPU-1 version 1.5
CONTENTS
1Preface...................................................................................................................4
2Introduction..........................................................................................................5
3Safety.....................................................................................................................5
4Description and Features.....................................................................................5
4.1 Characteristics of MPU-1.......................................................................................5
4.2 Arrangement of sockets and buttons......................................................................6
4.2.1 Keyboard.......................................................................................................6
4.2.2 Sockets...........................................................................................................8
4.3 Graphic display (LCD) ..........................................................................................9
4.4 Acoustic and visual alarm signals..........................................................................9
4.5 Measuring Current with Flexible F-Series Probes.................................................9
5Starting the operation........................................................................................10
6Operation............................................................................................................10
6.1 Preparing MPU-1 for operation ...........................................................................10
6.2 Monitoring the internal power supply voltage supplied by the internal
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
7Troubleshooting .................................................................................................22
7.1 Warnings and information displayed by the device.............................................22
8Power supply of the device................................................................................23
8.1 Monitoring the power supply voltage ..................................................................23
8.2 Replacing rechargeable batteries..........................................................................23
8.3 Charging rechargeable batteries...........................................................................23
8.4 General principles for using Ni-MH rechargeable batteries ................................24
9Cleaning and maintenance................................................................................25