Lte Transmitter; Introduction; Operation; Models - Tecfluid Series LT Instruction Manual

When installing the connector, make sure that the cable gland (A) closes over the cable and that
the connector (B) with the rubber seal (C) is well screwed down to maintain the IP65 rating.
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LTE TRANSMITTER

14.1

Introduction

The LTE transmitter is a resistive sensor based on the variation of resistance as a function of
the height of the float. This signal, once processed by a microcontroller, is converted into a
two-wire current signal of 4-20 mA proportional to the level.
14.2

Operation

For each level, the float height activates a certain reed sensor incorporated in a set of
resistances, giving a resistive value that becomes a current proportional to the level.
14.3

Models

Depending on the need of each application, the following transmitters can be supplied:
TR3420. 4-20 mA transmitter

TR2420H . 4-20 mA transmitter + HART. Ex zone 2

TR2420FP. 4-20 mA transmitter + Profibus PA / Foundation Fieldbus. Ex zone 2

TR2420Ex. 4-20 mA transmitter. Ex ia IIC T6

TR2420HEx. 4-20 mA transmitter + HART. Ex ia IIC T6

TR2420FPEx. 4-20 mA transmitter + Profibus PA / Foundation Fieldbus. Ex ia IIC T6

Information related to these transmitters can be found in the transmitter specific instructions
manual.
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