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4 BUTTONS AND INDICATIONS
The PIU unit has been designed so that user interaction is kept to a minimum whilst providing
clear phase indication. However, to further aid the user, additional functionality and displays
have been provided but this is deliberately kept to a minimum.
Table 1 - Table of Buttons and Indications
LABEL
FUNCTIONS
F1
a)
Turn on. Press for more than 3 seconds and release.
b)
When pressed for more than 3 seconds, with F4 held
down, the PIU will enter ‘Configuration Mode’.
c)
Upload the measured phase to the reference. Press for
more than 3 seconds and release.
d)
Cancel phase reference. Hold for more than three
seconds and then simultaneously short press on F2.
e)
Turn off. Press with F2 for more than three seconds.
F2
a)
Turn off when pressed with F1 for more than 3 seconds.
b)
Set Phase reference. Short press.
c)
Cycle the phase reference. Hold for more than three
seconds and then simultaneously short press on F3.
F3
a)
Cycle Status. Short Press. (e.g. Battery level displayed on
D2).
b)
Cycle the reference phase. Short press simultaneous
with a long press on F2.
c)
Press for more than 3 seconds when powered down, will
cause the battery level to display on D2.
F4
a)
Retry Communications. Short press to re-establish
mobile communications.
b)
Long press to leave configuration mode and power up
fully.
D1
Gradient display showing the Electric Field strength being
detected
D2
Status Gradient Display – e.g. Battery Status
Amber LEDs F1-
F4
Button press confirmation. F1 and/or F2 flashing indicates the
unit is going through its power-up or power-down cycle.
D1 Green LED
The PIU is in the Anti-Clockwise Phase Rotation Mode.
D2 Green LED
Indicates when the PIU is connected to the Remote Reference
Network/PC.