Project Description

Advanced flow sensors designed specifically for the irrigation industry. Our flow sensors wires directly to the SmartLink™ Aircard with Flow, enabling web-based flow management from your SmartPhone, Tablet, or Computer.

  • Threaded retaining nut makes it easier to service in a valve box
  • The molded mounting tee provides consistent measurements and overall improved performance
  • Four bladed lightweight impeller is sensitive enough to measure lower flow rates
  • Smart electronics capable of better signal filtering
  • Affordable enough to install on nearly all new and old systems

SLFSI-TXX

SLFSI-SXX

SLFSI-BXX

 

Models SLFSI-T10
1″ Tee Type Insert Flow Sensor – Used with the SmartLink Flow Aircard


SLFSI-T15
1  1⁄2″ Tee Type Insert Flow Sensor – Used with the SmartLink Flow Aircard


SLFSI-T20
2″ Tee Type Insert Flow Sensor – Used with the SmartLink Flow Aircard

SLFSI-S30
3″ Saddle Type Insert Flow Sensor – Used with the SmartLink Flow Aircard


SLFSI-S40
4″ Saddle Type Insert Flow Sensor – Used with the SmartLink Flow Aircard

SLFSI-B15
1  1⁄2″ Brass Tee Type Insert Flow Sensor – Used with the SmartLink Flow Aircard
Professional Materials Impeller – HDPE (High Density Polyethylene)
Shaft – Tungsten Carbide
O-ring — Buna-N
Saddle, Sensor Housing, Retaining Nut — Type 1 PVC
Impeller – HDPE (High Density Polyethylene)
Mounting Tee & Retaining Nut – Lead Free Bronze Alloy C89833 Federalloy I-836
Shaft – Tungsten Carbide
O-ring — Buna-N
Sensor Insert – Type 1 PVC
Pressure Rating 150 PSI @ 90º F 250 PSI Maximum working pressure
Temperature Range 32º F to 140º F (0º to 60º C)
Output Signal Frequency Range: 0.3 Hz to 200 Hz
Output Pulse: 5 ms +/-25%
Transducer Performance Quiescent current: 600 uA@8 VDC to 35 VDC max.
Quiescent voltage: (VHigh)= Supply Voltage – (600uA X Supply Impedance)
On State: (VLow)= Max. 1.2 VDC@50mA current limit, (10Ω +0.7VDC)
Quiescent current: 120 uA@8 VDC to 35 VDC max.
Off State: (VHigh)= Supply Voltage – (120uA X Source Resistance)
On State: (VLow)= Max. 0.85 Volts@50mA, (10Ω +0.7VDC)
Flow Range 0.25 to 12 FPS 0.50 to 15 FPS
1″ tee: 0.86 to 52 GPM
1 1⁄2″ tee: 1.8 to 108 GPM
2″ tee: 2.8 to 170 GPM
3″ saddle: 6 to 300 GPM
4″ saddle: 10 to 480 GPM
3 to 90 GPM (11 to 340 LPM)
Electrical Cable 2 single conductor solid copper U.L. listed #18 AWG leads with direct burial insulation
Lead length: 48 inches
Wiring may be extended up to 2,000 feet with direct burial, twisted pair shielded cable

Design Specifications

SLFSI-T or SLFSI-S
Written Specification CSI
Specification
Details
  DOC   DOC   JPG   DWG   DWF   PDF

How To Specify

SmartLink™ Flow Sensor Model Nominal Pipe Size
SLFSI-T10
1“
SLFSI-T15
1-1⁄2”
SLFSI-T20
2”
SLFSI-S30
3”
SLFSI-S40
4”
SLFSI-B15
1-1⁄2”
Feet/Sec GPM GPM GPM GPM GPM GPM
Minimum Flow 0.25 0.86 1.8 2.8 6 10
1 3.5 7.24 11.3 25 40 5.5
2 7 14.5 23 50 80 11
3 10.4 22 34 75 120 16.5
5 17 36 57 125 200 27.5
7 24 51 79 175 280 38.5
10 35 72 113 250 400 55
12 42 87 136 300 480 66
Maximum Flow 15 52 108 170 83
Friction Loss at Max Flow 0.25 psi 0.18 psi 0.15 psi 0.15 psi 0.15 psi 0.18 psi


Downloads


Help & Support

Support

Training Videos

Flow Sensors: SLFSI-T

Flow Sensors: SLF-WIRERIDE