McMillan’s microturbine wheel technology utilizes the Pelton turbine wheel concept. This design allows for use of a miniature turbine wheel. Units are available that measure liquids as low as 13 mL/min and as high as 10 L/min. Full scale accuracies of ±1.0% or improved ±0.5% F.S. are available on select models. NIST Traceable certificates are available on most models upon request. The list price is for standard model (not include NIST certificate or improved accuracy). Welcome to contact for calibrations for other media.

Key Features

Flow Ranges: Units are available that measure liquids as low as 13 mL/minute and as high as 10 L/minute.
Power: Most units may be specified to operate with either 12 VDC or 24 VDC power. Various power adapters are also available for use with 12 VDC version
Signal Output: 0-5VDC output is provided on all units.
Accuracy and Linearity: All liquid models have a standard accuracy specification of ±1% F.S. (including linearity). An improved accuracy specification of ±0.5% is available on some models.
Fluid Connection: Units feature either tube fittings or male integrated flare fittings based on model. See the specification table
Electrical Connection: Units have an integrated 4-pin male connector.
Display: A flow rate display is integrated into each unit and is programmed to read in mL/minute.

Typical Applications

For analog control of multi-stage control or electrostatic coating control
Fluidics management system
Sample flow rate regulation
Analytical instrument
On-demand chemical dilution and blending
Consumable usage monitoring and regulation

Product Model	S-111	S-112	S-114
Accuracy (including linearity)	Standard ±1.0% F.S.; Improved: ±0.5%	Standard ±1.0% F.S.; Improved: ±0.5%	Standard ±1.0% F.S.; Improved: ±0.5%
Repeatability	±0.2% Full Scale	±0.2% Full Scale	±0.2% Full Scale
Pressure Rating	100 PSIG	500 PSIG	500 PSIG
Temperature Rating	Operating Range: 5 to 55ºC; Storage Range: 0 to 70ºC	Operating Range: 5 to 55ºC; Storage Range: 0 to 70ºC	Operating Range: 5 to 55ºC ; Storage Range: 0 to 70ºC
Temperature Sensitivity	±0.2% F.S. or less per ºC	±0.2% F.S. or less per ºC	±0.2% F.S. or less per ºC
Wetted Materials	Ryton, SS316, Epoxy, glass, sapphire	Brass, Ryton, SS316, Epoxy, glass, sapphire	Ryton, SS316, Epoxy, glass, sapphire
O-Ring Material	Viton®	Viton®	Viton®
Fitting Material	Acetal, Brass, SS316	Acetal, Brass, SS316	Acetal, Brass, SS316
Recommended Filtration	25 microns or less	25 microns or less	25 microns or less

Other Specifications

Compatible Fluids	Low viscosity (<10 cS) • Translucent or Transparent • Minimum amount of entrained air
0-5 VDC Output Signal	Standard • Non-Isolated, 2500 ohm minimum load
Integrated Display	128x32 pixel backlit LCD
Power	Standard: 12 VDC @ 75 mA (11.5-15 VDC) • “E” Suffix: 24 VDC @ 40 mA (18-25 VDC)
Response Time	Typically <1 second for 97% of final value
Reliability	100,000 Hours MTBF (testing ongoing)
Certifications	CE Approved • 89/336/EEC (EN 55011 & EN 50082-1) • 73/23/EEC Low Voltage Directive
Ratings	IP10 (NEMA 1)