e-Tracker portable energy monitor operating and maintenance manual
4
Isolate any accessible un-insulated conductors during installation. Clip
CTs to all appropriate cables/conductors with all arrows facing the load.
All transducers including voltage reference inputs (if used) should be
fitted and connected to e-Tracker before e-Tracker is switched on.
Installation and set up
Practical and accurate connection options for single and 3 phase use:
Follow standard
safety procedure
Diagram 1
Diagram 2 Finger held probe
included to identify
phase on low load
Battery on
permanent
charge via
socket
For single phase use CT1 and 13A plug
Use e-Tracker with its fused voltage clips
for maximum accuracy on all parameters
3Ø direct voltage measurement
The set of colour coded fused voltage crocodile
clips must be securely attached to pick up the
phase voltages with the colours matching the
attached CTs.
Red/Brown = Line 1
ellow/Black = Line 2
Blue/Grey = Line 3
No neutral connection is required although e-Tracker
can be earthed Green/ ellow lead. Direct voltage
connection ensures high accuracy recording.
EV-Trac 3 phase volt reference conversion
from a single phase socket outlet
3Ø EV-Trac voltage pickup
e-Tracker’s internal 1Ø- 3Ø converter is automatically
applied when three CTs are connected to cables with
voltage reference taken from a 1Ø source all supplied
from the same distribution transformer.
(The CTs require sufficient primary current to be able to
detect zero crossover see diagram 7 on page 9)
Should automatic identification fail the EV-Trac
electrostatic probe may be used. Please note this can
only be effective on un-armoured phase cables.
e-Tracker calculates the three equivalent Line-Line
voltage vectors and assigns them to the correct
phases.
EV-Trac offers a safe alternative when direct voltage
connection is not practical, kW/kWh accuracy is good
particularly when phase voltage amplitudes are similar.
Marshall-Tufflex e-Tracker o erating & Maintenance Manual_Layout 1 15/12/2011 11:57 Page 4
