Digital temperature controller
The E5CN temperature controller has been enhanced with extra features. The new series has twice the previous model's input sampling speed and supports thermocouple/platinum resistance thermometer or analog input types in a different model.
The improved model combines a larger and sharper, 11-segment alphanumeric digital display for easy-to-understand settings menus (no more menu code deciphering). The display also incorporates a 3-colour PV to provide green, red and orange characters. The colours can be programmed to visibly indicate an alarm from a distance, or when the PV varies beyond a preset deviation from the SV.
The series also features an alarm delay timer, which prevents user unnecessary alarms being triggered by allowing for process disturbances.
Measuring 48 x 48 mm (1/16 DIN size) the E5CN is available in either panel mount format with an IP66 rating, or plug-in type with an IP50 rating. The controllers have the capability of traditional on/off controls or advanced 2-PID control (with auto-tuning) to ensure stable temperature control during start-up and running. It includes a three-phase heater monitor which checks for failures in elements configured to a three-phase supply.
Another feature is the availability of standard or new, long-life output relays (electrical life of one million operations) with a capacity of up to 3 A at 250 VAC, and a choice of 100-240 VAC or 24 VAC/DC power requirement. The modular structure means it is easy to add communications, heater alarms, event inputs and extra outputs at a later stage.
The E5CNs support both Modbus and Compoway/F protocols, which is software configurable. Omron's ThermoTools computer software is available for controller set-up, monitoring and data logging. In addition, it features password protection to prevent unauthorised access to settings.
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