The M&C 701 (ECM-2 series) is a specialized electronic temperature regulator designed specifically for the management of thermoelectric (Peltier) cooling elements within sample gas conditioning systems. In industrial gas analysis, maintaining a stable dew point is critical for sensor accuracy, and the 701 controller provides the precise microprocessor-driven logic required to achieve this stability.

Advanced Thermoelectric Management

Engineered for efficiency, the 701 controller utilizes a digital PID algorithm optimized for Peltier elements. Unlike standard heaters, Peltier modules require careful current management to maintain longevity and performance. The 701 manages this by monitoring temperature via a Pt100 RTD sensor and adjusting the TEC drive accordingly. It also features integrated alarm relays that trigger in the event of over-temperature or under-temperature conditions, safeguarding the downstream analyzer.

Compact Integration and Usability

The unit is housed in a compact 72mm wide enclosure designed for standard DIN rail mounting, making it easy to integrate into control panels or analyzer sheds. The alphanumeric LCD display provides clear, real-time feedback on current temperature and status messages. Through the three-button keypad, operators can easily program setpoints and diagnostic parameters without the need for external software.

Typical Applications

• Gas sample conditioning in CEMS (Continuous Emission Monitoring Systems)
• Control of Peltier-based gas coolers (M&C ECP/PSS series)
• Temperature stabilization of laser diodes in analytical equipment
• Process cooling applications requiring high thermal stability