RELAY OPERATION CHOICE
The TFT32’s Signal Relay can be configured to operate as:
ROC1 = Level Alarm
ROC2 = Level + Signal Loss Alarm
ROC3 = Signal Loss Alarm only
ROC4 = Always ON
ROC5 = OFF (de-energized) at all times
Press
Ç
to select the ROC.
RELAY CALIBRATION
ROC1 (Level Alarm)
ROC2 (Level + Echo Loss Alarm) - Relay will be energized when the Relay ON set point is
reached.
or
if the signal is lost (e.g. sensor wires short or open).
NOTE: The Set Points are displayed in percentage of span (LEVEL). Two different Set Points (
r on
and
roFF
) allows a Relay “deadband” for Pump Control and to avoid Relay chatter.
TFT32 Tank Farm Transmitter
Manual Series 2.4
Page 15
È
1,2,4
Ç
Ç
Ç
roc2
roc3
roc4
È
roc = 3,5,6 roc =
È
È
