Schneider Electric / Eurotherm / Chessell 2416 Temperature and Process Controller

The Schneider Electric Eurotherm Chessell 2416 is a 1/16 DIN (48x48mm) temperature and process controller engineered for precise industrial control across diverse applications. Built on modular hardware architecture, it accepts up to three plug-in I/O modules and one communication module, enabling flexible I/O configuration without redesign. The controller delivers advanced PID control with self-tuning and adaptive tuning algorithms, automatically compensating for processes with evolving characteristics.

It includes dedicated cooling algorithms optimized for water and oil-cooled systems.

Technical Specifications

• 1/16 DIN panel format (48×48mm)


• Modular hardware construction


• Supports up to 3 plug-in I/O modules + 1 communication module Control Algorithm


• Advanced PID with self-tuning and adaptive tuning


• One-shot tuner for initial PID values and overshoot inhibition


• Adaptive tuner for processes with changing characteristics


• Dedicated cooling algorithms for water and oil-cooled systems Input Stage


• Universal input circuit with advanced analog-to-digital converter


• Sampling rate: 9 Hz


• Drift correction integrated


• Supported sensor types: Thermocouples (J, K, T, L, N, R, S, B, C, G, D, E, U), Pt100 resistance thermometer, linear mV, linear mA, DC Volts


• Configurable input filtering: OFF to 999.9 seconds


• Sensor diagnostics included


• High noise immunity with 50/60 Hz rejection Setpoint Programming


• Standard 8-segment programmer built-in


• Optional 16-segment single program or 4×16-segment program storage


• Extended option: up to 20 programs of 16 segments each Outputs


• Modular I/O accepts Relay, Logic (non-isolated), Triac, and DC (non-isolated) modules


• Configurable for heating control, cooling control, alarm output, program event output, and PDSIO modes


• Relay/Triac modules feature internal 15nF/100Ω snubber for inductive load switching


• PDSIO (Pulse Density Signalling I/O): bi-directional analog and digital transmission with Eurotherm TE10S SSR compatibility and load failure/SSR failure detection Alarms


• Up to four process alarms combinable onto single output


• Alarm types: full scale high/low, deviation from setpoint, rate of change, load failure


• Latching or non-latching configuration


• Blocking-type alarms (active after safe state entry)


• Alarm display flashed on main display

Key Features

• Advanced PID control with automatic tuning eliminates manual parameter iteration


• Modular I/O architecture supports mixed output types within single instrument


• Proprietary PDSIO protocol enables bi-directional SSR communication and load diagnostics


• Flexible setpoint programming from 8 to 320 segments depending on module configuration


• Integrated sensor diagnostics detect thermocouple break and sensor faults

Typical Applications

• Precision heating and cooling control in laboratory and industrial environments


• Process temperature management in materials processing


• Water and oil-cooled system control with dedicated algorithms


• Multi-output applications requiring mixed relay, solid-state, and logic control

Compatibility & Integration The 2416 integrates with Eurotherm TE10S solid-state relays via PDSIO protocol. Communication module slot supports network integration where specified.