DESCRIPTION

Since the early 1960ʼs INVALCO WS Series Turbine Meters have been certified as meeting 3-A Sanitary Standard 28-03 for metering milk and milk products. The WS Series Meters are also ideal for pharmaceutical as well as food and beverage applications including De-Ionized water, wine, and many others. Rulon® 641 sleeve bearings are standard for excellent continuous non-lubricating service.

Specification

Linearity	1,2 ±0.5% Over-stated Range
Repeatability	±0.05%
Maximum Overrange	125% of flow rate for intermittent periods
Response Time	1/2” to 2” Meter: 2-5 milliseconds for step change in flow rate 3” Meter: 10-25 milliseconds for step change in flowrate
Frequency Output	1/2” to 2” - 100 Hz to 1,000 Hz 3” - 50 Hz to 500Hz
Voltage Output	1/2” to 2” = 100 mV @ 100 Hz to 1.5V (RMS) @1,000Hz 3” = 80 mV @ 50 Hz to 800 mV (RMS) @ 500 Hz
Pressure Rating - PSI	Tri-Clamp End Connections are limited to 250 psi @ 300°F maximum
Installation	Vertical or horizontal (any direction)
Materials of Construction	Body: 316 Stainless Steel (polished) Rotor: CD4MCu Bearings/Rotor Shaft: Standard: Rulon5/316 Stainless Steel Optional: Tungsten Carbide4/Tungsten Carbide Rotor Supports: 316 Stainless Steel (polished) Retaining Ring: 316 Stainless Steel
Temperature Range
Magnetic Pick-Up Coils (Order Separately)	Standard: -40°F to 228°F (-40°C to 109°C) Optional: Hi/Low Temperature -450°F to 450°F (-267°C to 232°C)
Preamp/Magnetic Pick-Up Coils	-40°F to 185°F (-40°C to 85°C)
Meter with Bearing Structure of	Standard: Rulon/Stainless Steel -40°F to 250°F (-40°C to 121°C) Optional: Tungsten Carbide -40°F to 300°F (-40°C to 149°C) For other temperatures consult factory
Pick-Up Coil (Order Separately)	DC Resistance: 975Ω Inductance: 400 mH Mating Connector: 10SL-4S or Wire Leads
Preamp Magnetic Pick-Up (Order Separately)	Housing: Stainless Steel Power Requirement: Supply voltage: +4.5 to 28 Vdc Current: ≤5mA @ 12 Vdc Output Signal: Square wave 0 to supply voltage, 5Hz to 12kHz 30% to 70% Duty cycle NPN with 10KΩ pull-up to supply voltage Mating Connector: 10SL-3P or Wire Leads
RF Nonmagnetic Pickup (Order Separately)	Consult factory for details

FEATURES

Rotor Supports - have up and downstream straightening vanes to enhance accuracy.
Helical Cast Rotor - in a heavy duty stainless steel (CD4MCu) design for durability and long service life.
Rulon Bearings - required for 3A certification and are excellent for non-lubricating service.
Stainless Steel Body and Wetted Parts - provide years of corrosion free service.
Electropolished/Super Passivated Rotor and Support - to insure clean flow conditions.

OPTIONS

Journal Bearings, Shaft, and Thrust Balls - Tungsten Carbide for longer life in non 3A applications.
1 Inch MNPT Electrical Housing Adapter - to facilitate meter mounted electronics or conduit.
Electropolished/Super Passivated Body - ideal for pharmaceutical applications requiring high grade finishes.