Thermal Dispersion Flow Switch Modal TDFS-1-P-06

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Thermal Dispersion Flow Switch Modal TDFS-1-P-06 Specification

Sensor Type
Thermal Dispersion (Thermal Mass) Sensor

Display
LED Indication

Thread
1 BSP (Male)

Grade
Industrial Grade

Outer Size
159 x 50 x 56 mm (Approximately)

Seal Material
PTFE / Viton

Material
SS316 (Wetted parts); Aluminum (Housing)

Processing Type
Electronics Inserted Body

Diameter
Sensor probe 6 mm

Mount Type
Inline/Insertion Mount

Scale Range
Flow Set Point Adjustable 0.1 to 3.0 m/s (liquids)

Accuracy
5% of set point

Finishing
Epoxy Powder Coated

Measure Pressure Of
Liquid Flow (Water, Oil, Chemicals, etc.)

Accessories
Installation Manual, Mounting Clamps

Thermal Dispersion Flow Switch Modal TDFS-1-P-06 Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash on Delivery (COD), Paypal, Cash Against Delivery (CAD), Cash in Advance (CID), Cheque, Cash Advance (CA)

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

Main Domestic Market
All India

About Thermal Dispersion Flow Switch Modal TDFS-1-P-06

Thermal Dispersion Flow Switch Modal TDFS-1-P-06

OLDModal TDFS-1-P-06
NEWModal TDFS-2-P-06

Series TDFS Thermal Dispersion Flow Switch
TheSeries TDFS2 Thermal Dispersion Flow Switchis a thermal flow switch that indicates whether the flow rate is above or below a user set flow rate. The unit incorporates two LED status indicators providing visual switch indication. The set flow rate (setpoint) is field adjustable and the unit has both NO and NC NPN outputs. See Figure 1 on catalog page for output and LED actions on change of flow

Product Applications

Boiler Flow Proving

Hot Water Heaters

Chillers

Liquid Transfer Systems

Model-TDFS2-1-P-06

Description -Thermal Dispersion Flow Switch, 316SS, 1/2" NPT Process Connection, 6 of Cable With Cable Gland.

Specifications

Service:Compatible water-based fluids.

Wetted Materials:316 SS, Polysulfone, and FKM.

Setpoint Range:0.5 to 10 ft/s (0.15 to 3.0 m/s).

Repeatability:0.07 ft/s +3% of setpoint.

Typical Deadband:0.1 ft/s +15% of setpoint.

Temperature Limits:Process: 5 to 185F (-15 to 85C) (non-freezing); Ambient: 5 to 167F (-15 to 75C), Storage: -40 to 185F (-40 to 85C).

Pressure Limits:300 psig (20.67 bar).

Response Time:Approximately 8 s.

Power Requirement:9 to 24 VDC.

Switching Current:400 mA, derate 5 mA/C above 23C.

Current Consumption:Average:93 mA, Peak: 300 mA.

Electrical Connection:4 conductor 22 AWG, 6 (1.83 m) long with cable gland.

Process Connection:1/2" NPT male.

Enclosure Rating:NEMA 4X (IP65).

Housing Materials:316 SS, 416 SS, polycarbonate, neoprene, and acrylated urethane.

Switch Type:1 NO NPN, 1 NC NPN.

Input Power and Protection:0.5A fuse (resettable) reverse polarity protected.

Switched Output Protection:0.5A fuse (resettable) reverse polarity protected.

Agency Approvals:CE.

Reliable Flow Monitoring for Industrial Applications

The TDFS-1-P-06 flow switch is built for demanding industrial operations, ensuring continuous monitoring and protection for pumps, cooling systems, and chemical processes. With its robust construction and multiple mounting options, it provides users with versatility and long-term durability.

Versatile Configurations and Simple Adjustments

This device accommodates various installation requirements, offering threaded or flanged process connections and adjustable response times. Its adjustable flow set point, coupled with LED indication, allows for precise monitoring and quick feedback during commissioning and operation.

FAQs of Thermal Dispersion Flow Switch Modal TDFS-1-P-06:

Q: How does the TDFS-1-P-06 flow switch detect liquid flow?
A: The TDFS-1-P-06 uses a thermal dispersion (thermal mass) sensor that detects changes in heat dissipation caused by fluid movement in pipes. This method ensures accurate and reliable liquid flow measurement and protection in various industrial processes.

Q: What are the key benefits of using this thermal dispersion flow switch in pump protection?
A: Employing the TDFS-1-P-06 significantly reduces the risk of dry running and associated damage to pumps by immediately detecting insufficient liquid flow, enabling timely intervention through its SPDT relay output for system shutdown or alarm.

Q: Where can the TDFS-1-P-06 be installed?
A: It can be installed in water, oil, or chemical process lines using either threaded (1 BSP Male) or flanged connections. The flow switch supports both inline and insertion mounting, making it adaptable to existing or new pipeline designs.

Q: What is the process for adjusting the flow set point and response time?
A: The device allows for user adjustment of the flow set point within the range of 0.1 to 3.0 m/s and response time from 2 to 10 seconds, catering to various liquid flow conditions. Adjustments are straightforward, supported by clear LED indication for verification.

Q: When is it advisable to use the supplied mounting clamps and installation manual?
A: The mounting clamps ensure secure attachment during installation, particularly in insertion applications. It is recommended to consult the provided installation manual for step-by-step guidance, ensuring accurate setup and reliable performance.

Q: What makes the TDFS-1-P-06 suitable for harsh industrial environments?
A: With an IP65-rated finish, epoxy powder-coated housing, SS316 wetted parts, and operation across -20C to +60C, this flow switch is engineered for durability and resistance against chemicals, dust, and moisture often encountered in industrial applications.