required to measure the voltage harmonics and of at least 200 mA to measure the current harmonics.
If the levels are lower, the unit will not calculate them and will display a value of 0.
The harmonics display screens can be displayed by pressing the key shown after the last profile
screen.
Harmonics are represented as shown in Figure 28. The figure shows the 15th voltage harmonic (H15).
Figure 28: 15th voltage harmonic.
The key jumps to the next harmonics screen.
Press the key to jump from the voltage harmonics to the current harmonics, and from the current
harmonics to the home screen of the instantaneous values.
5.1.5.- DETECTION OF INCORRECT CONNECTION AND INCORRECT DIRECTION OF ROTATION
Incorrect connection or disconnection
The device has a system for detecting the incorrect connection or disconnection of the voltage lines.
If this error occurs, the device displays 0 on the lines with a voltage value of less than 50% of the line
with the highest voltage value.
Incorrect direction of rotation
The device has a system for detecting the incorrect direction of rotation of the voltages. In other words,
if each of the voltages has been correctly connected to the appropriate terminal, L1 to terminal 10, L2
to terminal 11 and L3 to terminal 12.
If there is an error in the direction of rotation, the icons L1, L2 and L3 flash on the display.
The device has a RS-485 communications parameter, which indicates whether an incorrect direction of
rotation has been detected (“7.3.6. DETECTION OF INCORRECT DIRECTION OF ROTATION”).
Note: The detection of the direction of rotation is only enabled for measurement systems: Three-phase
network measurement (4-3Ph, 3-3Ph y 3-ArOn) and two-phase network measurement with 3-wire
connection (3-2Ph).
44
CVM-E3-MINI
Instruction Manual
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