Smart Temperature Transmitter

• Model: ZEO-131

The ROYAL intelligent temperature transmitter
is a high-performance field-mounted device
designed for accurate and stable temperature
measurement in industrial environments.
It is equipped with a high-resolution LCD display
for real-time indication of process variables
and configuration parameters, ensuring ease
of operation and clear visibility under all conditions.

Technical Overview
The transmitter accepts a wide range of input signals including RTD (Pt100, Pt1000, Ni100), thermocouple (Type K, J, T, E, N, R, S, B), resistance, and millivolt sources.
It converts these signals into a standard 4-20 mA current output superimposed with HART digital communication, providing both analog reliability and digital configurability.
Featuring galvanic isolation, advanced linearization, and temperature compensation, the ROYAL transmitter guarantees high accuracy, excellent long-term stability, and minimal drift even under harsh industrial conditions.

Configuration & Communication
Users can configure parameters directly via the front panel push buttons, through a HART handheld communicator, or by using a USB HART modem connected to a PC.
The configuration interface allows setting of sensor type, measuring range, damping, unit selection, and error signal modes.

Key Features

  • LCD display for clear and direct process indication
  • Electrical isolation and surge protection
  • 4-20 mA analog output with HART protocol
  • Multiple input types: RTD, thermocouple, mV, and resistance
  • Local or remote configuration options
  • Compact, robust, and weatherproof housing for field installation
  • Designed for high reliability and industrial safety compliance

Typical Applications

  • Power generation and turbine monitoring
  • Oil & gas and petrochemical process control
  • HVAC and energy management systems
  • Industrial furnaces, heat treatment, and temperature calibration setups

Head-Mount Temperature Transmitter & HART Communication

• Model: ZEO-130

The ZEO-130 from ROYAL Turbine is a high
precision, head-mounted temperature transmitter
designed for direct installation in connection heads
(Form B) of temperature sensors. It supports a
two-wire 20–4 mA output with superimposed
HART digital communication, enabling robust
analog signaling together with advanced
diagnostics and remote configuration.

Key Features & Technical Highlights

  • Universal sensor input: supports thermocouples (TC), RTD (thermal resistance), resistance sensors or ow-voltage (mV) signals.
  • Built-in cold junction compensation when using thermocouples, ensuring accuracy across varying ambient conditions.
  • High measurement accuracy: typically ±0.10% of span for RTD inputs, ±0.20% of span
    for thermocouple inputs.
  • Configurable via instrument panel interface, HART handheld communicator, or USB-HART modem connected to a PC, giving full flexibility in field setup and calibration.
  • Compact, rugged head-mount package suitable for harsh industrial environments, minimizing wiring and signal-conditioning issues at the measuring point.
  • Two-wire 4-20 mA output ensures minimal wiring effort and compatibility with both conventional loop-powered systems and HART-enabled networks.

Head-Mount Temperature Transmitter & 4-20 mA

• Model: ZEO-240

The ZEO-240 analog head-mount transmitter is a
compact and reliable signal-conditioning device
engineered for industrial temperature measurement.
It converts low-level signals from RTDS,
thermocouples, or resistance sensors into a
standard 4-20 mA current loop output, ensuring
stable and noise-free transmission over long
distances.

Key Features & Technical Highlights

  • Robust head-mount design for direct installation in sensor heads or connection boxes
  • Fully analog operation with excellent linearity and fast response
  • Supports multiple sensor inputs: RTD, Thermocouple, Resistance
  • Standard 4-20 mA two-wire output compatible with PLC, DCS, and panel indicators
  • High thermal stability and resistance to vibration and harsh environments
  • Simple setup, minimal calibration required