Technical data sheet for the JUMO eTRON M100 electronic refrigeration controller, covering specifications, connections, and functions for cold storage…
The JUMO eTRON M100 is an electronic refrigeration controller designed for use in cold stores, freezer cabinets, and cold displays. It features a 3-character backlit LCD display and supports various temperature sensors including Pt100, Pt1000, KTY1X-6, and KTY2X-6 probes.
The device provides three relay outputs for controlling cooling units, defrosting heaters, and fans. Key functions include cyclic or manual defrosting, fan control strategies, and alarm generation via relay or buzzer. Optional features include a data logger with real-time clock for HACCP compliance and an RS485 interface.
| Measuring range (Pt100/Pt1000) | -200 to +600°C |
|---|---|
| Tolerance in % of measuring range span (Pt100/Pt1000) | 0.05% |
| Measuring current for Pt100 | 2 mA |
| Sampling time | 250 msec |
| Relay for cooling rating | 16A/250V AC |
| Relay for defrosting/fan rating | 8A/250V AC |
| Supply voltage | 12 — 24 V AC/DC |
| Enclosure protection (front) | IP65 |
| Maximum baud rate (RS485) | 38.4 kbaud |
The controller supports Pt100, Pt1000, KTY1X-6, and KTY2X-6 probes in a 2-wire circuit.
Yes, it is available with an adjustable recording interval for HACCP-compliant documentation.
The cooling relay is rated at 16A/250V AC, while the defrosting and fan relays are rated at 8A/250V AC.