TFL 201: Frost protection monitor/limiter with capillary-tube sensor

Product catalog summary

Overview: The TFL 201 is a frost protection monitor/limiter designed to prevent frost damage in heating coils and ventilation ducts. It features temperature monitoring capabilities and is available in variants as either monitors or limiters. The device uses a copper capillary tube sensor and allows internal setting of the switching point.

Energy Efficiency: The device improves energy efficiency by preventing frost damage, which can lead to energy loss and increased maintenance costs.

Features:

Temperature monitoring in heating coils and air ducts.
Variants available as monitors or limiters.
Copper capillary tube with holders made of plastic.
Internally settable switching point with a small switching difference.

Technical Data:

Power Supply: Max load at Terminal 1-2 is 230 V~, 10 (2.5) A; Terminal 1-4 is 230 V~ 2 (0.4) A.
Setting Range: -10 to 15 °C, with a factory setting of 5 °C.
Switching Difference: 1.5 K with a tolerance of ±1 K.
Max Sensor Temperature: 120 °C.
Capillary Tube Lengths: 1.5 m, 3 m, and 6 m with respective time constants in moving air.
Ambient Conditions: Temperature range from -5 to 70 °C for both ambient and instrument head.
Construction: Plug-in connectors, housing made of ABS and PMMA, weight 0.2 kg.

Standards and Directives: The device complies with IP65 protection (EN 60529), Protection class I (IEC 60730), EMC Directive 2006/95/EC, and Low-voltage directive 2006/95/EC.

Types Overview: The document lists various types of TFL201 with different functions, switching differences, and capillary tube lengths.

Description of Operation: In normal conditions, contacts 1-2 are closed. When the temperature falls below the setpoint, contacts switch from 1-2 to 1-4, and revert when the temperature rises above the upper change-over point. Limiters with mechanical locking require manual reset after temperature rise.

Intended Use: The product is intended for use as described in the operation section and must adhere to all related product regulations.

Technical Appendix: Provides guidance on RC circuitry for inductive load, suggesting capacity and resistance values.

Disposal: Disposal must comply with local laws, with more information available in the Declaration on materials and the environment.

Catalog excerpts

TFL 201: Frost protection monitor/limiter with capillary-tube sensor-1

Product data sheet TFL 201: Frost protection monitor/limiter with capillary-tube sensor How energy efficiency is improved Avoiding frost damage in heating coils and ventilation ducts Temperature monitoring in heating coils and air ducts Variants as monitors or limiters Copper capillary tube Switching point can be set internally Small switching difference With capillary-tube holders made of plastic TFL201F**2 Technical data Power supply Max. load Switching difference Tolerance of switching difference Factory setting Setting range Time constant in moving air (0.3 m/s)1) Time characteristic Capillary tube length 1.5 m: 25 s Capillary tube length 3 m: 31 s Capillary tube length 6 m: 51 s Ambient conditions Ambient temperature Storage and transport temperature Connection terminals Plug-in connectors Cable cross-section Two sections, lower section black, upper section yellow, including inspection window Housing material Standards and directives Protection class Overview of types Type Switching difference Capillary tube Capillary tube holder The frost monitor always reacts to the coldest point (minimum length 7.5 cm (1.5 m), 15 cm (3 m) and 30 cm (6m)) The head of the instrument must be fitted in a warmer location than the sensor Right of amendment reserved © 201

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TFL 201: Frost protection monitor/limiter with capillary-tube sensor-2

Product data sheet Accessories Type Six holders for fitting the capillary tube Description of operation In the normal state, contacts 1-2 are closed. When the temperature falls below the lower change-over point (setpoint), the contacts switch from 1-2 to 1-4. When the temperature rises above the upper change-over point, the contacts switch from 1-4 back to 1-2. F022 and F622 limiter with mechanical locking: When the temperature has risen by the amount of switching difference Xsd again, the contacts can be manually reset (reset switch). Intended use This product is only suitable for the purpose...

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TFL 201: Frost protection monitor/limiter with capillary-tube sensor-3

Product data sheet Connection diagram Monitor Dimension drawing Fr. Sauter AG Im Surinam 55 CH-4016 Basel Tel. +41 61 - 695 55 55 www.sauter-controls.com Right of amendment reserved © 2016 Fr. Sauter AG

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