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Dwyer TDS212 Thermal Dispersion Flow Switch

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Dwyer TDS212 Thermal Dispersion Flow Switch

Price 25000 INR/ Piece

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MOQ : 1 Piece

Dwyer TDS212 Thermal Dispersion Flow Switch Specification

Thread
1 Male NPT/ BSPT/ BSP

Sensor Type
Thermal Dispersion

Outer Size
Sensor Insertion Length: 60 mm / 100 mm

Grade
Industrial Grade

Display
LED Indication (Flow/No Flow)

Seal Material
FPM (Viton)

Material
Stainless Steel (SUS304/316)

Processing Type
Factory Calibrated

Diameter
Suitable for pipe diameter DN20 to DN600

Mount Type
Insertion Type

Scale Range
0.03 to 3 m/s (Water), 2 to 300 Nm/s (Air)

Accuracy
5% of set point

Finishing
Polished Stainless Steel

Measure Pressure Of
Flow rate of Liquids and Gases

Accessories
Manual, Mounting Accessories Included

Dwyer TDS212 Thermal Dispersion Flow Switch Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash on Delivery (COD), Cash Against Delivery (CAD), Telegraphic Transfer (T/T), Cheque, Cash Advance (CA)

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Main Export Market(s)
Western Europe, Middle East, Central America, Eastern Europe, South America, Asia, Australia, North America, Africa

Main Domestic Market
All India

About Dwyer TDS212 Thermal Dispersion Flow Switch

Dwyer TDS212 Thermal Dispersion Flow Switch

Adjustable Switch Point, LED IndicationThe Series TDS Thermal Dispersion Flow Switchoffers 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.

Models & Ordering

Model	Description
TDS112	Thermal dispersion flow switch, PP/PPS wetted parts, 3.0" (7.6 cm) length.
TDS122	Thermal dispersion flow switch, PP/PPS wetted parts, 4.5" (11.4 cm) length.
TDS212	Thermal dispersion flow switch, PVDF wetted parts, 3.0" (7.6 cm) length.
TDS222	Thermal dispersion flow switch, PVDF wetted parts, 4.5" (11.4 cm) length.

Specifications

Service:Liquids.
Wetted Materials:Polypropylene/PPS or Polyvinylidene Fluoride.
Range:Range: 0.04 to 10 fps (1.2X10^-2to 3.05 m/s)
Temperature Limits:32 to 140F (0 to 60C).
Pressure Limits:150 psi (10 bar) @ 77F (25C), derated @ 1.667 psi (.113 bar) per C above 25C.
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^-2to .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.

Efficient Flow Monitoring for Liquids and Gases

The Dwyer TDS212 is engineered for real-time flow detection in a variety of substances, including water, chemicals, air, and inert gases. Thanks to its thermal dispersion sensing technology, the device delivers accurate results and adapts seamlessly to changing flow rates within factory-calibrated ranges, making it ideal for process safety and equipment protection.

Industrial Durability and Versatility

This flow switch boasts rugged construction with a polished stainless steel probe and electronic head, ensuring longevity in demanding environments. Its IP65 protection class shields against dust and water ingress. The TDS212 effortlessly suits both horizontal and vertical mounting, and its suitability for pipes from DN20 to DN600 provides flexibility for system integration.

Simple, Reliable Operation and Output

Installation and adjustment are straightforward with the provided accessories, clear LED status indicators, and intuitive potentiometer set point adjustment. The SPDT relay output enables reliable signal integration with external systems, and a factory-calibrated design ensures consistent performance from the moment of deployment.

FAQs of Dwyer TDS212 Thermal Dispersion Flow Switch:

Q: How does the Dwyer TDS212 Thermal Dispersion Flow Switch detect flow?

A: The TDS212 uses thermal dispersion technology to detect the presence or absence of flow in a pipe. It measures the rate at which heat is dissipated from its probe, indicating the velocity of liquids or gases moving past the sensor.

Q: What types of media can the TDS212 flow switch be used with?

A: This switch is compatible with a broad range of media, including liquids such as water and chemicals, as well as gases like air, nitrogen, and CO2, enhancing its versatility in numerous industrial applications.

Q: When should I use the set point adjustment feature on this device?

A: You should adjust the set point using the potentiometer if you need to change the flow rate at which the switch activates. This allows you to customize the detection threshold between 10% and 100% of the scale range for your specific process requirements.

Q: Where can the TDS212 be installed, and what pipe sizes does it support?

A: The sensor can be mounted in both horizontal and vertical orientations, and is suitable for insertion into pipes with diameters from DN20 up to DN600. Its robust threaded connection options and included mounting accessories facilitate installation across varied piping systems.

Q: What are the operational and safety benefits of using the TDS212 flow switch?

A: By providing immediate LED status indication (green for flow, red for no flow) and a reliable relay output, the TDS212 improves process efficiency and safety by helping to prevent dry running, process interruptions, or equipment damage.

Q: How is the electrical connection made and output triggered with the TDS212?

A: Electrical connection is via an M12 4-pin connector, supporting a 24V DC 20% supply. The SPDT relay output, rated at up to 250VAC and 1A, is triggered when flow status changes, allowing for remote monitoring or integration with control systems.

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