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3.5. FREQUENCY LIMITATION AS A FUNCTION OF AMPLITUDE
In the 3A, 30A, 300A and 3000 A ranges:
In the 3A, 30A, and 300A ranges, with a frequency
≤
20 kHz, there is no frequency derating.
3000A range
3.6. POWER SUPPLY
3.6.1 BY BATTERIES
The device is powered by two 1.5 V alkaline batteries (type AA or LR6).
The nominal operating voltage is lies between 1.8 and 3.2 V.
The mean battery life is:
MA110 single‑phase
300 h in continuous operation
1,800 10‑minute measurements
MA130 three‑phase
500 h in continuous operation
3,000 10‑minute measurements
When the device is not connected to line power and the green
On
indicator goes off, the batteries must
be replaced (see § 4.2).
3.6.2. MAINS ADAPTER (OPTION)
The device can be powered by a standard mains adapter (5 V
dc
, 100 mA) with a type B micro‑USB
connector.
When the adapter is connected and the switch is set to
OFF
, the
On
indicator is lit steadily.
When the device is on, the brightness of the
On
indicator varies to indicate that the batteries are OK. If
the indicator remains on steadily, the batteries must be replaced.
0 A
500 A
1000 A
1500 A
2000 A
2500 A
3000 A
3500 A
100 Hz
1000 Hz
10000 Hz
100000 Hz
