HT instruments М75 - Manual (Page 13)

M72 - M73 - M74 - M75
EN - 11
4.7.1. Anomalous cases which may occur during V Hz measurements
1. The maximum input voltage is
550+10%V.
If the detected voltage value exceeds
605V TRMS the instrument displays the
screen beside.
Disconnect immediately the instrument
from the circuit under test to avoid
electrical shocks and damages to the
instrument
2. If during a voltage measurement the
detected frequency value exceeds 400Hz
the instrument displays the screen beside
3. If during a frequency measurement the
detected value exceeds 400Hz the
instrument displays the screen beside
4. If during a frequency measurement the
detected value does not reach 30.0Hz
the instrument displays the screen beside