Electrex X3M, Руководство пользователя

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L1-L2 Phase-phase (L1-L2) value (applicable to system voltages and THD only)
L2-L3 Phase-phase (L2-L3) value (applicable to system voltages and THD only)
L3-L1 Phase-phase (L3-L1) value applicable to system voltages and THD only)
AVG Average value (applicable to average powers - demand - only).
(3) Threshold voltage: programmable in the range –1999 +1999
(4) The quantity can be scaled by powers of ten by using the m, K, M symbols and the decimal point.
Range is between 10-3 and 109.
(5) Beginning of range value (4 or 0 mA), programmable from –1999 to 1999.
(6) It can be associated to the above value and it identifies it as end of scale value (end of range
symbol). It cannot be modified.
(7) Associated to the value above identifies it as beginning of range value (empty on 0 mA, two marks
on 4 mA). It cannot be changed
(8) Output type: 4-20 mA or 0-20 mA.
Output 2 requires the same procedure
5.1.2.6.1 Analog output set up with Modbus registers.
To set up the analog output the Modbus Holding Registers from 80 to 91 have to be used.
Refer to chapter 9 for the details.
5.1.2.6.2 4-20 mA output configuration of the average AVG values
In Import-Export mode, the instrument can provide the measuring on the 4 dials, but the selection can be
made on a dial at a time.
In selection mode, the measures are visualized as follows:
Imported Active Power (import)
Inductive reactive Power with imported Active Power.
Capacitive reactive Power with imported Active Power
Apparent Power with imported Active Power
Exported Active Power (export)
Inductive reactive Power with exported Active Power
Capacitive reactive Power with exported Active Power
Apparent Power with exported Active Power
The quadrant selection is operated according to the following
trigonometric convention: