Compact Temperature Signal Conversion for Industrial Applications
The Yokogawa YTA70 is a head-mount temperature transmitter designed to convert temperature sensor signals into standardized industrial output signals.
Unlike field-mount temperature transmitters designed for larger process installations, the YTA70 provides a compact solution that can be installed directly inside a temperature sensor connection head or on a DIN rail.
It is an ideal choice for applications requiring reliable temperature measurement, easy configuration, and digital communication capability in a compact form factor.
Supports Multiple Temperature Sensor Inputs
The YTA70 supports a wide range of temperature sensor inputs, allowing engineers to use one transmitter platform for different measurement requirements.
Supported inputs include:
- RTD
- Thermocouple
- Resistance (Ohm)
- DC millivolt input
With 17 selectable input types, the YTA70 can be configured for different temperature sensors commonly used in industrial automation systems.
HART Communication for Easy Configuration
Compared with the basic YTA50, the YTA70 adds HART digital communication capability.
Through HART communication, users can:
- Configure transmitter parameters remotely
- Adjust sensor settings
- Access device information
- Perform commissioning using compatible configuration tools
The YTA70 supports:
- HART 5
- Selectable HART 5 / HART 7 versions
HART 7 provides enhanced functions such as longer tag information, improved burst mode, and event notification capability.
Designed for Head Mount Installation
The YTA70 follows the DIN Form B head-mount standard.
It can be installed:
- Inside a temperature sensor connection head
- On DIN rail with an adapter
This compact installation method helps reduce wiring distance between the sensor and transmitter, improving signal reliability and simplifying temperature measurement system design.
Reliable 4–20 mA Temperature Output
The YTA70 converts sensor signals into a standard:
4–20 mA DC analog output
This allows easy integration with:
- PLC systems
- DCS systems
- Process controllers
- Industrial monitoring systems
For plants requiring both traditional analog signals and digital configuration, the HART-enabled YTA70 provides a practical solution.
Suitable for General Process Control Applications
The YTA70 is designed for temperature measurement applications where reliable signal conversion and convenient maintenance are required.
Typical applications include:
- Chemical processing equipment
- Utility systems
- Machinery temperature monitoring
- HVAC and building systems
- General industrial automation
Its compact design makes it especially suitable where installation space is limited.
Key Features
- Head-mount temperature transmitter
- Supports RTD, thermocouple, resistance, and DC mV input
- 17 selectable input types
- 4–20 mA DC output
- HART 5 communication
- HART 5/HART 7 selectable version
- DIN Form B compliant design
- Head mounting capability
- DIN rail mounting option
- Compact installation design
- Easy configuration through HART communication
- Intrinsically safe options available
Technical Highlights
- Input: RTD / Thermocouple / Resistance / DC Voltage
- Output: 4–20 mA DC with optional HART communication
- Communication: HART 5 or HART 7
- Mounting: DIN Form B head mount / DIN rail mount
- Power Supply: 8–35 V DC
- Protection: Hazardous area approvals available depending on configuration
- Configuration: Digital configuration through HART tools
Typical Applications
Temperature Sensor Replacement Projects
The YTA70 can upgrade traditional temperature sensors by adding signal conversion and HART communication capability.
Industrial Control Systems
The transmitter provides a reliable interface between temperature sensors and PLC/DCS systems.
Compact Equipment Monitoring
Its small size makes it suitable for machines and equipment where installation space is limited.
Process Utility Systems
The YTA70 is suitable for monitoring temperature in auxiliary systems and general industrial processes.
FAQ
What is the Yokogawa YTA70?
The Yokogawa YTA70 is a head-mount temperature transmitter that converts RTD, thermocouple, resistance, and DC millivolt sensor signals into a 4–20 mA output with HART communication capability.
What is the difference between YTA50 and YTA70?
The YTA70 includes all basic functions of the YTA50 while adding HART digital communication for easier configuration and device management.
What sensors can YTA70 accept?
The YTA70 supports:
- RTD
- Thermocouple
- Resistance
- DC millivolt input
This allows it to work with many industrial temperature sensors.
Does YTA70 support HART 7?
Yes. Depending on the selected model, the YTA70 supports HART 5 or selectable HART 5/HART 7 communication.
Where is YTA70 installed?
The YTA70 is normally installed inside a temperature sensor connection head or mounted on a DIN rail using an adapter.
Why use a head-mount temperature transmitter?
A head-mount transmitter reduces the distance between the temperature sensor and signal converter, helping improve signal reliability and simplify wiring.
Can YTA70 be used with PLC and DCS systems?
Yes. The 4–20 mA output allows integration with common industrial control systems.
Is YTA70 suitable for hazardous areas?
Yes. Intrinsically safe options are available depending on the selected configuration and certification requirements.
What is the advantage of HART communication?
HART allows engineers to configure the transmitter digitally, read device information, and perform commissioning without changing the traditional 4–20 mA signal wiring.
