16 Specifications and Operation DATAPAQ TP3
Logger Status LEDs
Red Green Meaning
Red and green LEDs each give 5
flashes, alternating with each other
Logger successfully reset.
Red and green LEDs flash
continuously, alternating with each
other, at sample interval *
Logger awaiting trigger (see p. 43) (in most
situations, except as below).
Red and green LEDs continuously give
double-flash together, every 5 seconds
Logger awaiting start-button trigger for 2nd or
subsequent runs in multiple-run mode (see p. 45).
On Flashing at sample
interval *
Logger awaiting trigger, but one or more of the
enabled input channels is open circuit.
Red and green LEDs flash together, at
sample interval *
All probes are above trigger temperature, and thus
data-recording cannot be triggered by rising temper-
ature (or, if falling trigger is set, all probes are below
trigger point). Reset temperature trigger (see p. 43).
Off Flashing at sample
interval *
Logger acquiring data.
Flashes 5 times Off Connection between communications lead and logger
has been made.
Flashing every
5 seconds
Off Logger has data in memory which has not been
downloaded. (Logger will power-off after 5 mins – or
after 30 mins if Bluetooth is on.)
2 quick flashes
every second
Off Logger too hot to start logging (after pressing start
button).
Flashing every
second
Off Internal error. (Logger will power-off after 5 mins – or
after 30 mins if Bluetooth is on.)
One flash Off Start button pressed during a profile run to mark an
event (see p. 53).
*
Flashing interval will actually fall in range 0.5–5 s.
Four-LED Sequences
When the logger is able to receive Bluetooth communication (p. 29),
each of the four LEDs will flash once in horizontal sequence, repeating every
20 seconds.
When green and red buttons are pressed, together, to turn off logger (see
below), all four LEDs flash together, once.
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