JUMO 702112/8-2000-23/000 diraTRON 108 PID Controller

JUMO 702112/8-2000-23/000 diraTRON 108 Compact Universal PID Temperature Controller

The JUMO diraTRON 108 (Type 702112) is a compact industrial single-loop PID process and temperature controller engineered for precision control tasks in challenging industrial, processing, and marine shipboard environments. Built in a standard 1/8 DIN vertical format (48 mm × 96 mm), the controller features a front fascia rated to IP65 and utilizes screwless Push-In (spring-cage) terminal blocks for vibration-resistant electrical installation.

This unit integrates a multi-function universal analog input accepting standard RTDs (Pt100, Pt1000, KTY), 13 thermocouple types (including K, J, N, S, B, R, T), DC voltage (0–10V), DC current (0/4–20mA), and resistance transmitters. The display architecture consists of high-contrast 18-segment dual LCD lines alongside a custom pixel matrix LCD for contextual clear-text status readouts, operating mode diagnostics, alarm triggers, and parameter configuration.

Technical Specifications: JUMO 702112/8-2000-23/000 

Key Features

1. Universal Measurement Input: Configurable across all primary standard RTD probes (Pt100, Pt1000 2/3/4-wire), thermocouples (Type K, J, T, N, S, R, B), and linear process signals (0/4–20 mA, 0–10 V DC) with custom sensor linearization curves.
2. Vibration-Proof Push-In Terminals: Spring-cage connection technology prevents wire loosening under continuous machinery vibration and engine room harmonic stresses.
3. Micro-USB Front/Rear Setup Interface: Program and flash configuration files or execute firmware updates directly via PC software with USB-powered logic (no mains power connection required during bench staging).
4. Multi-Mode Control Structures: Supports Two-State, Three-State, Three-Step (modulating motorized valves), and Continuous PID control algorithms with dual parameter sets and autotuning (self-optimization).
5. Integrated Health & Maintenance Tracking: Features an integrated operational hour meter and switching cycle service counter for proactive condition-based maintenance on contactors, heating elements, and solenoid valves.

Applications

• Marine Auxiliary & Boiler Systems: Exhaust gas temperature control, heavy fuel oil (HFO) pre-heaters, lube oil separator temperature control, freshwater generator evaporators, and thermal oil boilers.
• Industrial Thermal Processing: Industrial heat treatment furnaces, curing ovens, plastic extrusion barrels, blow molding equipment, and packaging heat sealers.
• Process Plant Heating & Cooling: Steam heat exchangers, pasteurizers, clean-in-place (CIP) hot water sanitization skids, and jacketed reactor temperature loops.
• Environmental & Test Chambers: Climatic test cabinets, stability test chambers, refrigeration plants, and humidity/temperature test rigs.

Part Number Cross-References & Equivalent Hardware

• JUMO Model Lineage: 702112/8-2000-23/000, 702112/8-0000-23/000, 702112/8-0300-23/000
• Predecessor Legacy Models: JUMO dTRON 308 (703042 series), JUMO iTRON 08 (702040 series)
• Direct 1/8 DIN Competitor Replacements:
  • Eurotherm 3208 / 3508 Series (48 × 96 mm format)
  • Omron E5EC-RX2ASM-800 / E5CC series
  • Gefran 600 / 1200 Universal PID series

Frequently Asked Questions

Can the JUMO 702112/8-2000-23/000 replace older JUMO dTRON 308 controllers?

Yes. The 702112 diraTRON 108 utilizes the standard 1/8 DIN vertical panel cutout (45 mm × 92 mm). The universal input covers the same sensor ranges as the legacy dTRON 308 series, though terminal assignments should be matched according to the wiring diagram due to the transition to push-in terminal architecture.

What is the primary difference between the 702112 and 702113 models?

The 702112 is a vertical 1/8 DIN format (48 mm wide × 96 mm high), whereas the 702113 (diraTRON 108Q) is the landscape/horizontal version (96 mm wide × 48 mm high). Both run the same core firmware and functional feature sets.

Can this controller be set up for modulating valve control?

Yes. The controller firmware supports Three-Step control mode with integrated motor runtime calculation for modulating open/close actuators using the two onboard base relays.

Does the unit retain parameters during a blackout or power outage?

All parameters, calibrated offsets, and setpoint values are stored in non-volatile EEPROM memory, ensuring full data retention without the need for backup batteries during dead-ship conditions or extended power shutdowns