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Atrato_Instruction_Manual_0322
®
Relay
NOTE:
Flow Switch uses Filtered Flow Values!
Depending on the mode chosen this Relay (Terminals 1,2 and 3) triggers when flow or volume
reaches a certain threshold
Relay Mode
: has options for:
•
Not used: No relay
•
Flow switch: Flow rate activated relay
•
Batch Control: Total volume activated
relay.
Flow switch:
NOTE:
Flow Switch uses Filtered Flow Values!
•
Threshold l/min
: the maximum flow rate
after which the relay is triggered.
•
Hysteresis:
If Positive: Relay Activates above the Threshold
plus the Hysteresis and deactivates when the Flow
drops below the Threshold Value.
If Negative: Relay Activates below the Threshold
Value minus the Hysteresis and Deactivates when
Flow increases above the Threshold value.
Example:
Set up: Threshold 1.00 l/min; Hyst20%
Condition: Power On; No Flow = Relay OFF
•
First Trigger is Threshold PLUS Hysteresis (1.00 + 20%)
Flow >1.20 l/min = Relay ON
•
Relay Resets when Threshold met:
Flow Drops <1.00 = Relay OFF
Batch Control:
•
Total required
(Litres): the volume that can
pass through the meter before the batch is
considered complete and the relay is
triggered.
