AEMC MA114, Руководство пользователя

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10
AC Current Probe Model MA114
6. Read the measurement on the multimeter, applying the reading
coefficient indicated on the label on the electronic unit corresponding to
the setting of the switch.
3 A~ range: 1000 mV~/A~
30 A~ range: 100 mV~/A~
300 A~ range: 10 mV~/A~
3000 A~ range: 1 mV~/A~
7. Multiply the reading by the coefficient.
For example, a reading of 1 V on the measuring instrument corresponds
to a current of
1 V
10 mV / A
= 100 A in the 300 A~ range.
2.2.2. DISCONNECTING THE MA114
Remove the flexible coil from the conductor, set the switch to OFF, and
disconnect the electronic unit from the multimeter.
2.2.3. AUTOMATIC POWER OFF
When the MA114 starts up, it operates for 10 minutes, then automatically
switches itself to sleep mode to save battery life. While this feature is activated,
the orange Auto Power Off indicator is lit.
To override automatic power off:
1. With the MA114 OFF, press and hold down the Auto Power Off button
while turning the sensor ON by turning the switch to any measurement
setting.
2. Continue to hold down Auto Power Off for longer than 2 seconds. The
orange Auto Power Off indicator remains OFF, indicating this feature is
disabled.
2.3. EXTERNAL POWER (OPTIONAL)
For long
‑
duration measurements, you can connect the MA114’s electronic unit to
line power. Remove the protection from the type B micro
‑
USB connector, then
connect the lead. You can use any line/micro
‑
USB adapter that delivers 100 mA
or more.
The green On indicator remains lit but its brightness varies to indicate the
batteries are functional. While external power supply is present, automatic power
off is disabled. If external power is disconnected, the MA114 switches to battery
power and automatic power off takes effect after 10 minutes.