Amprobe DM-111S Current-Data-Logger - Manual (Page 36)

DMIIIS
EN - 34
6.4. POSITION "ENERGY"
This function permits to display the values of the phase and total active powers, the value
of the phase and total capacitive and inductive reactive powers, the values of the power
factors and phase and total cos

. Furthermore, the instrument is able to measure directly
(see 6.4.2) the values of the phase and total active energies and the values of the phase
and total capacitive and inductive reactive energies.
6.4.1. Symbols
The position ENERGY has only one working mode:
 METER
This mode will be described in detail in the next paragraphs.
The symbols used are described below:
Symbol Description
Pt, P1, P2, P3 Values of the total active power, of phase 1, phase 2, phase 3 respectively
P12, P32 (only for 3 wires measurement) Value of the power measured by the Wattmeter 1-2
and 3-2 respectively (see paragraph 16.3.2)
Qt, Q1, Q2, Q3 Values of the total reactive power, of phase 1, phase 2, phase 3 respectively
Q12, Q32 (only for 3 wires measurement) Value of the power measured by the VARmeter 1-2
and 3-2 respectively (see paragraph 16.3.2)
St, S1, S2, S3 Values of the total apparent power, of phase 1, phase 2, phase 3 respectively
S12, S32 (only for 3 wires measurement) Value of the power measured by the VAmeter 1-2
and 3-2 respectively (see paragraph 16.3.2)
Eat, Ea1, Ea2, Ea3 Values of the total active energy, of phase 1, phase 2, phase 3 respectively
Erit, Eri1, Eri2, Eri3
Values of the total inductive reactive Energy, of phase 1, phase 2, phase 3
respectively
Erct, Erc1, Erc2, Erc3
Values of the total capacitive reactive Energy, of phase 1, phase 2, phase 3
respectively
Est, Es1, Es2, Es3 Values of the total Apparent Energy, of phase 1, phase 2, phase 3 respectively
Tab. 4: Symbols used in the position ENERGY
The symbols "i" and "c" stand for reactive powers (Q) and energies (Er) inductive and
capacitive respectively.