EGT 346...348, 392, 446, 447: Duct temperature sensor
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EGT 346...348, 392, 446, 447: Duct temperature sensor - 1

Product data sheet EGT 346...348, 392, 446, 447: Duct temperature sensor How energy efficiency is improved Precise measuring of duct temperature for energy-efficient control of HVAC installations and monitoring energy consumption Features • Passive or active measuring element • Used in pipes and containers using optional thermowells (LW 7) For use in standard HVAC applications up to 160 °C and aggressive ambient conditions up to 260 °C (EGT392F102) Technical data Parameters Recommended measurement current Typ.< 1 mA Time characteristic Time constant in moving air (3 m/s) Time constant in still air Time constant in still water Time constant in still water, with ther- 17 s (t63) mowell made of brass Time constant in still water, with ther- 20 s (t63) mowell made of stainless steel Ambient conditions Ambient temperature Storage and transport temperature Humidity (non-condensing) Construction Housing Housing material EGT*4*: Polyamide EGT392F102: Form J made of diecast aluminium Connection terminals EGT*4*:45° screw terminals 0.35...1.5 mm2 For number of poles see connection diagram Cable inlet Immersion stem Ø 6×L (mm) made of stainless steel 1.4571, see table Standards and directives Type of protection EGT34*F031:EN 60730-1. Mode of operation 1. Residential premises Resistance values / characteristics / The tolerance listed below applies only to the corresponding measuring element. The accuracy of the sensor depends on the cable length and the measuring element used. Measuring element Right of amendment reserved © 2015

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EGT 346...348, 392, 446, 447: Duct temperature sensor - 2

Product data sheet Overview of passive types Type Measuring element Immersion length L (mm) Measuring range Overview of active types Measuring range Measuring ac- Output signal Power supply Power con- Immercuracy at sumption sion length L 21 °C1)2) (mm) EGT346F031 5 temperature ranges Typ. ±1% of (-50...160 °C), adjusta- measuring ble on device (see con- range nection diagram) EGT347F031 5 temperature ranges Typ. ±1% of (-50...160 °C), adjusta- measuring ble on device (see con- range nection diagram) EGT348F031 5 temperature ranges Typ. ±1% of (-50...160 °C), adjusta- measuring ble on...

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EGT 346...348, 392, 446, 447: Duct temperature sensor - 3

Product data sheet Engineering and fitting notes CAUTION! Damage to device! ►Devices with a power connection may only be connected if the power cable is disconnected from the mains. Fitting instructions In the water circuit The duct temperature sensors must be installed in a thermowell (LW 7) for pipes and vessels. When they are used in pipes with lagging, the immersion length of the duct temperature sensor must be selected accordingly. The sensor must be installed facing against the direction of flow. min. 50 cm In the air duct For installation in air ducts, the duct temperature sensor is...

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EGT 346...348, 392, 446, 447: Duct temperature sensor - 4

Product data sheet Disposal When disposing of the product, observe the currently applicable local laws. More information on materials can be found in the Declaration on materials and the environment for this product. Measuring range adjustment T Fr. Sauter AG Im Surinam 55 CH-4016 Basel Tel. +41 61 - 695 55 55 www.sauter-controls.com Right of amendment reserved © 2015 Fr. Saut

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