Adjust The Dc-Zero; Indication Of The Led; Over Limit; Failure Of The Dc Zero - Chauvin Arnoux MH 60 Notice De Fonctionnement

Oscilloscope clamp

3.2.2. Adjust the DC-Zero

The clamp must not be on a conductor, the jaws must be closed.
Long-press the key (approx. 2s). The DC-Zero function is then activated.
During the process, the LED is lit. At the end of the process, if there is no ERR, the
LED goes off. Otherwise, it remains lit.

The ERR status is generally caused by the flow of a current in a
conductor in a clamp.
The MH60 clamp includes a magnetometer that reduces the influence of external
fields, notably the Earth's field.

Example: I adjust the zero with the plane of the horizontal: to "clamp", I turn my
clamp to the vertical. Thanks to the magnetometer, my zero is preserved.
3.3. Indication of the

3.3.1. Over limit

The LED is lit when the measurement current exceeds 110Arms ±3%.

This function does not take the frequency derating into account.

3.3.2. Failure of the DC zero

The LED remains lit following failure of the DC zero adjustment.

3.4. Indications of the BAT LED

3.4.1. Charge state, number of blinks of the LED

When the clamp is in operation, the LED of the power supply flashes sequentially
according to the charge level of the storage battery:
If the remaining life is 2h, the LED blinks once every 3s.
For 2 additional hours, it flashes one more time.

E.g.: If the LED flashes 5 times every 3s, the remaining life of the storage battery
is 7 to 8h.
At the end of discharging, when the last 2 hours have been consumed,
the LED scintillates permanently, until a complete shutdown occurs automatically.
LED
21