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Flowline FT10 Series Thermo-Flo Thermal Dispersion Liquid Flow Switch

Thermo-Flo Thermal Dispersion Liquid Flow Switch
FT10 Series

The general purpose liquid flow switch is an ideal choice for a wide range of relatively clean water and chemical solutions with non-coating and/or crystallizing characteristics. Media examples include deionized water and sulfuric acid. The 1A relay provides a reliable switch interface with remote devices such as a PLC, SCADA or alarm. The short sensor is intended for use in pipe from 1/2” to 1-1/2”; the long sensor is applied in 2” and up. The switch set point may be adjusted from .04 to 3 fps. The product is broadly selected for low or no-flow applications.

• Adjustable set point from .04-3 fps with LED for flow or no-flow status
• Solid state sensor is not damaged by over-ranging flow velocities
• 1A relay selectable NO or NC via power supply wiring polarity

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Table 1Table 2Table 3
Table 1Sensor material (1)
Table 2Sensor length (2) (3)
Table 3Process mount (4) (5)
03/4” NPT (US)
23/4” G / Rp (Metric)
Set point range .04 to 3 fps (.012 to .91 mps)
Factory set point .2 fps (.06 mps)
Repeatability ±.5% of set point @ fixed temp
Response time 1-10 seconds
Set point adjust Potentiometer
Viscosity range 1-200 centipoise
Supply voltage 12-36 VDC
Consumption 70 mA maximum
Contact type (1) SPST relay
Contact rating 60 VA
Contact output Selectable NO/NC
Process temp F: 32° to 140°

C: 0° to 60°

Electronics temp F: -40° to 140°

C: -40° to 60°

Pressure 150 psi (10 bar) @ 25° C., derated @ 1.667 psi (.113 bar) per °C. above 25° C
Sensor rating NEMA 4X (IP65)
Sensor material 1__5: PP-Ryton® 5__5: PVDF Kynar®
Cable jacket mat. 1__5: PP 5__5: PFA Teflon®
Cable type 4-conductor, #22 AWG (shielded)
Cable length Standard: 10’ (3m) Special order: 25’ (7.6m) or 50’ (15.2m)
Process mount 3/4” NPT (3/4” G / Rp)
Mount. gasket Viton® (G version only)
Classification General purpose
CE compliance: EN 50082-2 immunity

EN 55011 emission

EN 61010-1 safety

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