MI 3125 / BT EurotestCOMBO Appendix E
89
Voltage between any test terminals is higher than 50 V
Both LEDs red and switch off
Battery voltage too low for operation of commander
PE terminal test procedure
Connect commander to the instrument.
Connect commander to the item to be tested (see figure E.4 and E.5).
Touch PE test probe (the TEST key) on commander for at least one second.
If PE terminal is connected to phase voltage both LEDs will light yellow, the
warning message on the instrument is displayed, instrument’s buzzer is
activated, and further measurements are disabled in Zloop and RCD functions.
Figure E.4: Reversed L and PE conductors (application of plug commander)
Figure E.5: Reversed L and PE conductors (application of tip commander)
Reversed phase and protection conductors! The most dangerous situation!