Seametrics FS30 - Manual

LT-10524-A
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General Information
The FS30 is designed for use with any SeaMetrics flow
meter or flow sensor to activate a switch closure at a set
flow rate. Particularly suited for critical flows, it is called
an “active” flow switch because if it should fail it would
tend to fail in a false “no flow” condition, unlike vane-type
switches which easily fail in a false “flow” mode. The FS30
can be set to activate on rise or fall, and the set point is
input using rotary digital switches.
A variable hysteresis or deadband setting is provided to
accommodate varying amounts of turbulence in the flow
metering application. If the turbulence is significant, a
larger deadband keeps the switch from chattering on and
off when the flow is very close to the setpoint.
Specifications
Power 12 - 36 VDC
Flow Sensor Power 5 VDC, 20 mA
Output Form C relay, 10 A
@ 120 VAC or 28 VDC max
Setting Range 1 - 999 Hz
Accuracy 1 %
Hysteresis 1 - 10%
Modes High (close on rise),
low (close on fall)
Response Speed Switch (after 90% change)
Change rising 2.0 second
Change falling 3.0 second
Indicators Power on (green), switch (red)
Temperature 32º- 120ºF (0º- 5ºC)
FS30 Active Flow Switch
Instructions
DISC
ONT
INUE
D
(12/31/06)