Instrumentation
Flow Indicators and Transmitters
Sight Flow Transmitter          Series SF Sight Window Series 500
±2% FS Accuracy,4 to 20 mA Output,  Tempered glass window resists 
Pressure up to 500 psig (34 bar).  chemical attack and abrasion. 
SF integrates tangential turbine  APPLICATIONS: Hydraulic Tanks ;
technology with hermetically sealed  Pressure Vessels; Coolant Tanks ;
circuitry to provide accurate flow  Hydraulic Lines ; Oil Reservoirs .
measurement and control in the  Model 500 are also available in carbon 
harshest environments. The 2-wire  steel or 316 stainless steel to suit a 
loop-powered design transmits a 4 to  wide range of chemical compatibility.
20 mA signal proportional to flow rate. 
Sight Window Series 550 Turbine Flow Sensor            Series  TF
Fused glass style sight windows  TF are suitable for a wide variety of 
feature glass to metal bond for utmost  industrial, commercial and laboratory 
reliability. Plated steel bodies have  flow applications. Sensors use a 
convenient hex wrench surfaces.  turbine wheel and electro-optical 
Connections are standard NPT-sizes  detection to convert flow rates into a 
from 1/4" to 2".  linear 0 to 5 VDC signal for recording 
Windows are clear, ripple free, and  and datalogging. Models for use with 
flush with the front face, having no  liquids also provide a pulsed output 
recess on which dirt might collect. for flow totalizing - see model TM2.