JUMO meroTRON Modular Controller

Overview

JUMO meroTRON is a modular one-channel/two-channel controller with PLC function, engineered as a multifunctional replacement platform that takes the concept of the established JUMO dTRON series into the future. Featuring a fully customizable device menu, individual design of operating levels, and scalable hardware with Plug and Play functionality, the JUMO meroTRON adapts precisely to a wide variety of temperature, pressure, and process control applications without requiring extra external hardware.

As the official authorized partner and exclusive regional representative for JUMO, Seven Star LLC proudly supplies the JUMO meroTRON controller to industrial process, plastics, and manufacturing customers across Oman and the wider GCC. Every unit shipped through Seven Star LLC is genuine JUMO product with full manufacturer warranty and access to local technical support – ensuring facility engineers and procurement teams in Muscat, Sohar, and Salalah receive an authentic, factory-certified JUMO meroTRON backed by regional service.

Working Principle

The JUMO meroTRON supports two-state, three-state, modulating, position, continuous, and program controller types from a single scalable hardware platform, applying the base control algorithm to one or two independent control channels depending on the model and option cards fitted. Autotuning, ramp function, program control, manual mode, limit value monitoring, digital control signals, extensive timer functions, and a service counter are included as standard, while a math and logic function together with structured text (ST) code functionality allow the device to be extended into genuinely complex control tasks and process sequences.

What distinguishes the JUMO meroTRON from a conventional compact controller is that its second control channel, PLC function, and data logger capability are built directly into the base hardware – there is no need for additional external hardware to implement multi-channel or logic-driven control strategies. ST code gives direct programmatic access to the display and operating keys, and extra code 278 unlocks specialized functionality such as a boost function for clearing plastic injection nozzles or a startup ramp tailored to hot runner technology, reflecting the controller’s strong presence in plastics processing applications.

Engineering Design of the JUMO meroTRON

The JUMO meroTRON is available in four DIN formats – 116 (48 x 48 mm), 108H (48 x 96 mm), 108Q (96 x 48 mm), and 104 (96 x 96 mm) – each with one analog and one digital input as standard, expandable with additional analog, digital, and fast counting inputs (up to 10 kHz). Two normally-open relay outputs are standard, with optional expansion to additional analog outputs, relays, solid-state relays, and logic outputs (0/14 V or 0/24 V), the latter of which can also directly power connected two-wire transmitters, simplifying loop wiring in the field.

Process information, menus, and parameters are shown across two 18-segment LCD displays, with types 703052 through 703054 adding a pixel matrix display for full text output. Communication options include USB host and device ports for setup, with optional RS485 (Modbus RTU master/slave), Ethernet (Modbus TCP master/slave), and PROFINET device connectivity. Removable PUSH IN terminal strips speed up field wiring during installation, and the controller runs from AC 110 to 240 V or AC/DC 24 V, carrying UL listing along with AMS 2750 and CQI-9 approvals for heat treatment traceability applications.

Key Features

The JUMO meroTRON combines a flexible, scalable hardware platform with built-in PLC-grade control that makes it a versatile replacement for a wide range of compact controller applications.

• A second control channel, PLC function, and data logger are built into the base hardware without requiring additional external modules.
• Math and logic functions plus structured text (ST) code enable sophisticated, program-driven control strategies.
• Four DIN formats (116, 108H, 108Q, 104) provide direct fit for common panel cutouts across various applications.
• Fast hardware counters up to 10/12.5 kHz support high-speed counting and positioning applications.
• Modbus master function (RTU or TCP) and PROFINET device connectivity integrate cleanly into existing plant networks.
• Logic outputs can directly power connected two-wire transmitters, simplifying field wiring.
• AMS 2750 and CQI-9 approvals with optional CQI-9/AMS2750-compliant input calibration support heat treatment traceability.
• Removable PUSH IN terminal strips speed up installation and reduce commissioning time.

Industrial Applications

The JUMO meroTRON is deployed across general industrial temperature and pressure control, plastics processing (including injection molding and hot runner systems), heat treatment, and machine building wherever a flexible, scalable process controller with built-in PLC and data logging capability is required. Typical duties include multi-zone temperature control, sequence and program control, and process control loops that benefit from direct two-wire transmitter power supply.

As the officially authorized partner for JUMO, Seven Star LLC distributes the JUMO meroTRON to plastics processors, heat treatment facilities, and industrial manufacturers throughout Oman and the GCC. The controller is a strong fit for process control retrofits and new machine builds across the Sohar and Salalah industrial zones, as well as for plastics, heat treatment, and general manufacturing facilities across Muscat that require dependable, scalable process control.

Technical Specifications

The table below summarizes the core specifications of the JUMO meroTRON controller as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supports the full procurement cycle for the JUMO meroTRON controller, from formal RFQ submission to regional warehouse stock availability, technical datasheet delivery, and direct consultation with our instrumentation division on control channel configuration, option card selection, and interface requirements for your application. As the authorized partner for JUMO in Oman and the GCC, we ensure every JUMO meroTRON controller is delivered with full manufacturer warranty and dependable local technical support. Contact Seven Star LLC today to request a quotation or discuss your process control requirements.