ReCon T Energy Logger
User manual
Voltage and current inputs
ReCon T has integrated voltage input leads as well as flexible current sensors. The 4 Voltage input
leads are marked L 1, L 2, L 3 and N (neutral) and are colourcoded according to EU standard: Brown for L 1,
Bl ac k for L 2, Grey for L 3, Blue for Neutral.
The voltage cables are also used for powering the instrument. Due to its extremely low power
consumption, this doe s not affect the measured voltage.
Voltage leads are terminated in 4-mm safety banana connectors. Crocodile clips are also supplied for
use when suitable female connectors are not available.
The same standard color code is used to mark the 3 flexible current sensors. The current sensors have
a marked arrow to indicate the positive sense of current.
The most common situation you will use the instrument for is analyzing the energy consumption of
an installation. Connect the flexible current sensors around the input cables with the arrow pointing from the
line to the load. This will result in positive readings for consumed energy.
Electric topologies
ReCon T support s 4 different measurement topologies. The following table summarizes the
connections for the different cases:
Topology
No. of wires
Voltage Connection
Current Sensors
Wye
4 (L1, L2, L3, N)
L1, L2, L3, N
L1, L2, L3
Delta
3 (L1, L2, L3)
L1, L2, L3
Do not connect Neutral
L1, L2, L3
Split-Phase
3 (L1, L2, N)
L1, L2, N
Do not connect L3
L1, L2
Do not connect L3
Single-Phase
2 (L1, N)
L1, N
Do not connect L2, L3
L1
Do not connect L2, L3
Multi-load single-phase
2-4 (L1-L3,N)
L1-L3, N
L1-L3
The topology is selected using the setup option of MEDCALScope.
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