Measuring Current (Ammeter) - Facom 714 Guía De Instrucciones

Measuring current
Measuring current using the 714P.200 clamp
• Connect the current measurement clamp onto the dedicated connector.
• Set the rotating switch to the
• If required, select the type of current to measure using the yellow key, i.e. DC, AC.
Otherwise, selection is automatic when clamping the conductor for which the current
is measured, and if this current exceeds 150 mA AC or 20 mA DC.
• If the clamp is not connected, the
• If the clamp is connected, the
Zero" toggling with the value measured.
The "DC Zero" display is lit in 2 cases:
when switching to the function, and if the value measured exceeds 20mA
after each measurement of a high current.
Note: the display resets to zero:
when pressing (short or long) the "DC Zero" key
when exiting the function.
when disconnecting the clamp.
• If required, correct the display by a long press on the "DC Zero" key, showing zero
on the display, after checking that the clamp holds no cable.
Perform this operation before measuring any DC or AC current, preventing any errors
due to remanence in the magnetic circuit or thermal deviation of the magnetic sensor.
Press the "DC Zero" key to skip zero correction.
• Clamp the conductor in which current must be measured
Current measurements are performed over 2 ranges: 40A, 400A.
Range selection is performed automatically by the tester.
The last range is limited to 200A. Then, the display shows OL and produces a
repeated beep.
On the alternate 40A caliber, if the signal measured is < 150 mA (15 display pt), the
display shows zero, although the tester continues measuring, and if required selects the
nature of the current measured.
On the continuous 40A caliber, if the signal measured is < 20 mA (2 display pt), the
display shows zero, although the tester continues measuring, and if required selects the
nature of the current measured.
To view the minimum and maximum values of the current measurement, press the
"MIN/MAX" key several times.
Measuring starting currents:
To perform this measurement, first select the tester's "PEAK" function using the
appropriate key, then clamp the cable in which current must be measured, and start the
engine.
To reset the extreme values read, press the DC zero key. You can perform several
starting current (peak value) readings in a row, without exiting and re-entering the
reading mode. If the starting current exceeds 200A, use another clamp.
position:
symbol is deactivated on the display.
symbol is lit on the display, indicating "DC
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