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FlowStat – Turbine Flow Sensors

FlowStat Flow Sensor

Perfect monitoring solution for chillers/cooling circuits, HVAC, medical equipment, batching and industrial process control applications.

CHOICE OF THREE PORT SIZES
Flow Stat groupSelect from 1/2" , 3/4" or 1" NPTF porting to meet system requirements.

EASY MAINTENANCE AND CLEANING ce
Has only one moving component, the impeller. Cleaning and maintenance may be performed without removing the sensor from the piping.

HERMETICALLY ENCAPSULATED CIRCUITRY
Withstands the harshest environments.

SEVERAL OUTPUTS AVAILABLE
The standard interface is a 2-wire, 4-20mA current loop. Sensor signal may be transmitted on a low cost wire without degradation. Pulse, 0-5 VDC and relay outputs are also available.

CONNECTS DIRECTLY TO YOUR FLOW MONITORING INSTRUMENTS
Can be connected directly to analog acquisition cards, chart recorders or other monitoring instruments, without external signal conditioning.

SIMPLY PLUMB AND APPLY POWER
FlowStatComes factory calibrated to your flow range specifications.

VALUE PRICING
Combined with low cost operation and maintenance, equals better bottom line savings for your operation.



Engineering Specification

THE FLOWSTAT SENSOR SHALL:

  • Have only one moving component.
  • Be calibrated to user specified flow range.
  • Have a measuring accuracy of ±2% of full scale.
  • Have hermetically encapsulated circuitry.
  • Be Lake Number C_ _ - _ _ - _ _ for the Current output, Number P_ _ - _ _ - _ _ for the pulse Output version, and Number V_ _ - _ _ - _ _ for the 0-5 VDC option.

Materials of Construction

WETTED COMPONENTS:

Casing:

Stainless Steel #316

Cover:

Stainless Steel #316 (optional clear polycarbonate)

Seal:

Buna-N (other options available)

Turbine:

Acetal copolymer

Bearing:

PEEK (Polyetheretherketone)

Shaft:

Stainless steel

NON-WETTED COMPONENTS:

Encapsulant:

Epoxy

Strain relief:

Nylon

Lock Ring:

Stainless Steel

Wire insulation:

High temperature PVC


Performance

Measuring accuracy:

±2% of full-scale

Repeatability:

±0.5% of full-scale

Flow Measuring Range:

1/2" porting: 0.5 minimum - 15 maximum GPM (2-60 LPM)
3/4"- 1" porting: 1.5 minimum - 50 maximum GPM (60-200 LPM)

Pressure differential:

For specific differential information, see graphs below.

Turndown Ratio:

10:1

Temperature Range:

20-225°F (-7 to 107°C)

Pressure Range:

to 500 PSIG (34 bar)

W/optional clear cover

to 200 PSIG (14 bar)

Filtration requirements:

150 micron filter recommended

 

Typical Pressure Differentials

pressure differentials

 

Electronic Specifications

4-20 mA VERSION:

Power Requirements: 12-35 VDC, loop-powered

Load driving capacity: 1150 Ohms max.

Maximum transmitting distance: Limited only by wire resistance & supply voltage

Response time: 2 seconds to 90% (step change)

Resolution: Infinite

Over-current limit: Self limiting at 35mA

Other protection: Reverse polarity

Standard Interface: 10' pigtail, 22 AWG multi-conductor cable (electrical connector optional)

0-5 VDC VERSION:

Power Requirements: 12-35 VDC

Maximum Current: 25 mA DC

Minimum Load Resistance: 1000 Ohms

Maximum transmission distance: 200 ft. recommended

Resolution: Infinite

Response time: < 5 seconds to 90% (step change)

Standard Interface: 10' pigtail, 22 AWG multi-conductor cable (electrical connector optional)

PULSE OUTPUT VERSION:

Power Requirements: 5-24 VDC

Response Time: < 100 mS

Maximum current: 25 mA DC

Maximum transmission distance: 200 feet recommended

Minimum load resistance: 1000 Ohms

Protection: Short circuit & reverse polarity

Standard Interface: 10' pigtail, 22 AWG multi-conductor cable (electrical connector optional)

RELAY OUTPUT:

Power Requirements: 12-35 VDC

Maximum transmission distance: 200 feet recommended

Switch Contact: Form C, 5A max @120 or 240 VAC

Hysteresis: 5% of set point maximum

Set point repeatability: 1% of full scale

Standard Interface: 10' pigtail, 22 AWG multi-conductor cable (electrical connector optional)


Mechanical
FlowStat CAD

DIM

1/2" NPTF

3/4" NPTF - 1" NPTF

A

1.94" (49mm)

3.06" (78mm)

B

1.13" (29mm)

1.33" (34mm)

C

2.00" (51mm)

2.46" (62mm)

D

2.45" (62mm)

2.78" (71mm)

D*

2.45" (62mm)

2.88" (73mm)

E

3.70" (94mm)

5.25" (133mm)

F

2.63" (67mm)

3.80" (97mm)

* Dimensions with optional clear polycarbonate cover installed



































©2011 Lake Monitors

8809 Industrial Drive, Franksville, WI  53126
Phone: 262-884-9800 | Toll Free: 800-850-6110
Fax: 262-884-9810

info@lakemonitors.com