<< Click to Display Table of Contents >> Navigation:  Humidity & Temperature Devices > Transmitter > TF5A  > Device Description

Overview

The Temperature Advanced Transmitters TF5A are designed for fixed mounting in applications where high measurement accuracy is required. It can be operated with a wide range of PT100 sensors with/without cable for measurements in materials, air and water.

 

 

Main features and benefits

•Interchangeable, plug-in PT100 probe (sold separately)

•Wide temperature measurement range from -200 to 600°C

•High transmission accuracy and long-term stability

•NFC-Interface for communication with external device

•Firmware updates over NFC-Interface and HygroSoft Software

•LED indicators on the front to provide clear visual feedback on the operating status1

•Optional LCD display for measured parameters, errors, alarms and operating status

•Optional digital version with RS485 digital Interface and MODBUS RTU communication protocol2

•Two analog output signals, freely configurable and scalable

•New housing with high immunity to dust and moisture

 

1 Not available with the TF5A-2

2 Available only with the TF5A-D

 

 

Transmitter Variants

There are 3 different transmitter variants available as a standard product, each available with or without display and different temperature scaling. For special configuration requirements, customization is available across a wide range of possible settings. However, a minimum order quantity of 20 pieces is required.

 

 

 

Start-Up

The typical start up time is for all TF5A around 5 seconds.

 

 

Measurement interval
The measuring interval of TF5A Advanced variants corresponds to 1 second

 

 

Current Consumption

TF5A-2:  The maximum current consumption is 2x23 mA.

TF5A-3 & TF5A-D1: When both outputs are connected, the maximum current consumption is 80 mA.

 

 

Analog output scaling and signal types

With the ROTRONIC HygroSoft software any of the two analog output signals for TF5A-3 and TF5A-D can be used as a current or voltage output for temperature measurement. For the TF5A-2 the output signal is available only as 4...20mA. By default for all TF5A only the analog output 1 is used, the output 2 is unused. Its scaling can be set within the numerical limits of -999.99 and 9999.99. The D/A converters used to generate the analog output signals feature bigger than 15-bit resolution.

 

 

Note: Both circuits have an internal polarity protection. Incorrect supply voltages as well as excessive loads on the outputs can damage the Transmitter.

 

Overview of Hygrosoft Functions

The device-specific configuration functions are detailed in the Chapter Hygrosoft below the section Supported devices:HF3A/TF5A

 

 

Simulator mode

A simulation value can be enabled for each measured parameter on a HygroFlex device. When a simulation value is activated, it replaces the current measured value with the defined value. This feature allows to test whether the HygroFlex device correctly processes a specified fictitious value. The simulation value can only be configured, activated, or deactivated via the NFC interface using the corresponding smartphone or PC application.

 

 

Status LED

The TF5A-3 and TF5A-D come with three default status LED colors, each indicating a different operational status. The TF5A-2, however, does not have a LED indicator.

 

 

 

 

Hierarchy of error messages

To achieve a normal operation status indicated by a green light, the following errors must be resolved:

 

•Serious errors (These prevent the device from functioning normally)

•Sensor errors

•Power, output, or scaling errors

•Simulator mode

•Alarm mode

 

In the event of a serious error, please disconnect the power supply and then reconnect the device. If the issue persists, contact Rotronic Support for further assistance.