Series TDS Thermal Dispersion Flow Switch

Adjustable Switch Point, LED Indication

The Series TDS Thermal Dispersion Flow Switch offers solid state flow detection of non-coating liquids for pump and process protection. SPDT output allows for interfacing with remote PLC or relay control device. The adjustable switch point is factory calibrated at 0.2 fps with LED indication of flow and calibration status. Units feature selectable NO or NC operation and are not damaged by over-ranging flow velocities.

Starting at $471.45

Ordering

Grouped product items
Model	Description	Availability*	Price
TDS112	Thermal dispersion flow switch, PP/PPS wetted parts, 3.0" (7.6 cm) length.	1-3 days*	$471.45
TDS122	Thermal dispersion flow switch, PP/PPS wetted parts, 4.5" (11.4 cm) length.	1-3 days*	$494.40
TDS222	Thermal dispersion flow switch, PVDF wetted parts, 4.5" (11.4 cm) length.	5-6 Weeks*	$661.10
TDS212	Thermal dispersion flow switch, PVDF wetted parts, 3.0" (7.6 cm) length.	3-4 Weeks*	$749.15

Specifications

Service:: Liquids.
Wetted Materials:: Polypropylene/PPS or Polyvinylidene Fluoride.
Range:: Range: 0.04 to 10 fps (1.2X10^-2 to 3.05 m/s)
Temperature Limits:: 32 to 140°F (0 to 60°C).
Pressure Limits:: 150 psi (10 bar) @ 77°F (25°C), derated @ 1.667 psi (.113 bar) per °C above 25°C.
Repeatability:: ±5% of setpoint.
Switch Type:: SPDT.
Electrical Rating:: 60 VAC/60 VDC @ 1 A.
Electrical Connections:: 22 AWG 3-wire, 10 ft (3 m) length.
Process Connections:: 3/4" male NPT.
Mounting Orientation:: Any orientation, for pipe sizes 3/4" to 1-1/2" use 3.0" (7.6 cm) length switch; for 2" to 16" pipe sizes use 4.5" (11.4 cm) length switch.
Setpoint Adjustment:: 0.04 to 3 fps (1.2X10^-2 to .91 m/s).
Setpoint Drift:: 0.5% of setpoint.
Response Time:: 1-10 seconds.
Viscosity Range:: 1 to 200 centipoise.
Supply Voltage:: 12 to 36 VDC.
Consumption:: 50 mA (nominal).
Indication:: LED for flow status.
Weight:: 3 oz (94 g).
Agency Approvals:: CE.

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Series TDS Thermal Dispersion Flow Switch

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