Omega TF280-N, Руководство пользователя

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5. Output Status
TF280-N/TF280-P is equipped with 12~55 Vdc, top of housing would light up
with green LED.
DIN & Cable type:

Low(Min.) Mode: Tuning fork switch will be actuated 3 seconds after the
power is on. Relay is NO and red LED indication is on. When tuning fork
is covered by testing medium, vibration stops and relay becomes NC.
Red LED indication is off.

High(Max.) Mode: Tuning fork switch will be actuated 3 seconds after the
power is on. Relay is NC and red LED indication is on. When tuning fork
is covered by testing medium, vibration stops and relay becomes NO
Red LED indication is off.

Flashing red indicates abnormal: Possible causes overloads or shortcircuit
load back, equipment malfunction or wear tuning fork probe.