YTA70 is a terminal box-mounted temperature transmitter that converts the input signal from the connected thermocouple or thermoresistor into a 4–20 mA DC that is easy to transmit. YTA70 can realize remote setting through HART communication protocol.
This user’s manual describes the YTA70 temperature transmitter, a wiring‑box type device that converts thermocouple or RTD signals to a 4–20 mA DC output. It includes safety information, quality assurance details, and specifications for various sensor types.
Key sections cover the block diagram, wiring diagrams, safety approvals (CENELEC ATEX, FM), HART communication setup, and a full parameter list for configuration and diagnostics. This manual is written in Japanese.
| Output signal | 4–20 mA DC |
|---|---|
| Supply voltage | 8 V DC to 35 V DC |
| Communication protocol | HART digital communication |
| Environmental temperature range | -40 °C to 85 °C |
| Accuracy (Thermocouple B) | ±0.1% of span or ±1.0 °C |
| Thermocouple input resistance | 10 MΩ |
The YTA70 provides a 4–20 mA DC current loop output.
It supports HART digital communication for remote configuration.
The device operates from 8 V to 35 V DC (13.8 V to 35 V for intrinsically safe versions).
It can be used in environments from –40 °C to 85 °C (zones 1‑4).