ENDA ET4420 is a professional 48x48 mm digital PID temperature controller designed for accurate control of electric heaters, ovens, plastic-processing machinery and industrial heating or cooling applications.

The controller supports PT100 sensors together with selectable J, K, L, T, S and R thermocouples, allowing one unit to cover a wide range of industrial temperatures.

Selectable control algorithms include On-Off, P, PI, PD and PID, together with automatic Self-Tune and Soft-Start functions.

The ET4420 provides:

• 24V / 20mA SSR output
• 250V AC / 8A C/A2 relay, NO+NC
• 250V AC / 8A A1 relay, NO
• selectable heating or cooling control
• dual set points
• configurable digital input
• sensor offset correction
• selectable probe-failure operation.

Main specifications

• Manufacturer: ENDA
• Model: ET4420
• Type: PID temperature controller
• Front size: 48x48 mm
• Dimensions: 48 x 48 x 87 mm
• PT100 input
• J, K, L, T, S and R thermocouple input
• On-Off / P / PI / PD / PID control
• Self-Tune
• Soft-Start
• Heating / cooling control
• SSR output: 24V, 20mA
• C/A2 relay: 250V AC, 8A
• A1 relay: 250V AC, 8A
• 12-bit A/D converter
• 100ms sampling time
• Control period: 1...250 seconds
• Supply options: 90-250V AC 50/60Hz or 10-30V DC / 8-24V AC
• 5VA power consumption
• IP65 front protection
• IP20 rear protection
• Operating temperature: 0...+50 C.

Typical applications include cartridge heaters, band heaters, tubular heaters, heated molds, injection molding machines, extruders, industrial ovens, packaging machinery and industrial temperature-control panels.