Series SF Sight Flow Transmitter

±2% FS Accuracy, 4 to 20 mA Output, Pressure up to 500 psig (34 bar)

The SERIES SF Sight Flow Transmitter is a Series of sight indicators which can display flow or contents of pipelines and provide an analog 4 to 20 mA signal proportional to the flow rate. It is available with a 316 SS or clear polycarbonate cover.

Product Applications

  • Cooling and lubrication circuits
  • HVAC systems
  • Aggressive chemical metering
  • Batching systems

Models & Ordering

Model Description Usually Ships Price Code Order
Ships: Next Day
Price: $646.00
Sight flow transmitter, 316 stainless steel cover. Next Day $646.00 N Order
Ships: Next Day
Price: $646.00
Sight flow transmitter, clear polycarbonate cover. Next Day $646.00 N Order


Compatible liquids.
Wetted Materials:
316 SS shaft and case, Iglide® bearings, Buna-N seal and acetal copolymer, (polycarbonate cover on Model SF11).
Flow Range:
0.5 to 15 GPM (2 to 60 LPM).
±2% FS.
0.5% FS.
Temperature Limits:
20 to 225°F (-7 to 107°C).
Pressure Limits:
500 psig (34 bar) Model SF10, 200 psig (14 bar) Model SF11.
Response Time:
2 s to 90% (step change in flow rate).
Supply Voltage:
12 to 35 VDC.
4 to 20 mA.
Loop Resistance:
1150 Ω max.
Process Connection:
1/2" female NPT.
Electrical Connection:
Wire leads, 22 AWG x 9' (2.7 m).
Maximum Particle Size:
Agency Approvals:


  • Integrates tangential turbine technology with hermetically sealed circuitry to provide accurate flow measurement and control in the harshest environments
  • 2-wire loop-powered design transmits a 4 to 20 mA signal proportional to flow rate for remote flow monitoring
  • Clear polycarbonate viewing cover option for visible indication of flow
  • 316 SS cover offers added protection with pressure limit up to 500 psig (34 bar)
  • LED power indication, adjustable zero and span, polarity protection and over current limiting
  • Accurately measures flow in both directions and can be mounted in any orientation


Model Number Description Usually Ships Price Code Order
NISTCAL-FL1 NIST traceable calibration certificate for variable area flowmeters. NOTE: EQUAL CERTS WILL BE CHARGED PER UNITS PURCHASED. Less Than 1 Week $215.00 Order

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