Seametrics FS10 - Manual

PUB 19200-1000
Page 1 of 2
FS10 Single Flow Switch
Instructions
Designed to be used with a variety of SeaMetrics
meters, the FS10 signals when flow reaches a critical
setpoint. When flow falls below the setpoint, SPDT re-
lay contacts close to actuate whatever alarms or con-
trols are connected to them. Setting is by means of
DIP switches, and the setpoint is in pulses per minute.
An output lights gives visual indication that flow limit
has been reached.
Specifications
Power 115 VAC
Enclosure NEMA 4x, 5" x 7" polycar-
bonate
Relays SPST
Relay Rating 5 A resistive at 115 VAC
5 A at 24 VDC
Setpoint Range 1 - 33,000 pulses/
minute
Setpoint Hysteresis 6%
Sensor Power 25 mA at 12 VDC
nominal
Features
Mounting. To gain access to the mounting screw holes,
remove the front clear cover. Mounting screw holes
are at the four corners, under the cover screws. Mark
the centers of these holes, using the box or the en-
closed template, and drill. Finally, insert screws through
the corner holes and tighten.
Terminal Access. Terminals are on the back side of
the printed circuit board. Remove the front clear cover,
then remove the four front plate screws. Turn the printed
circuit board over to reach the terminals.
Connect Flow Meter. Bring the flow meter input cable
into the unit through the appropriate strain relief, then
connect following the Connections diagram. Either two-
wire (dry contact) or three-wire (solid state) flowmeter
sensors can be used.
Connect Alarm Relay. Bring alarm output cable into
the unit through the appropriate strain relief and con-
nect to relay output, as shown in the Connections dia-
gram. Note that depending on setting, the relay may
energize when the unit is first powered up. If this
presents a hazard, disconnect any devices on the
other end of the cable until settings have been made
and tested.
General Information Installation
Input Indicator
Flow Rate Setting
Power switch
and indicator
Cover screws
and box mounting
screw holes
Power input cord
(6’ length)
Flow
relay output
Internal 5 Amp
replaceable fuse
Output Indicator
L
O
W
F
L
O
W
strain relief
Meter input
INPUT
FS10
FLOW SWITCH
32
16
8
4
2
1
Setting equals the
sum of the
switches turned "ON".
64
32
16
8
4
2
1
MANUAL
64
F
L
O
W
R
A
T
E
OFF ON
OFF ON
LOW FLOW
INC. KENT, WA.
DIS
CON
TIN
UED