DT4211M

Description

DT4211M LCD PID temperature controller is microcomputer control unit for temperature control of an air condition system. An all-in-one control box is ready for wall mount. Temperature setting and current value are display on a large size backlight LCD displayer. Fail-safe function. Password to prevent unauthorized operation. Adjustable PID control is suitable for accurate temperature control to save energy.

Features

• A stand alone 32 bits CPU with preset control firmware.
• Large LCD display, show setting and actual temperatures with four characters each line. Show unit for these two values with three characters each. High lumen backlight.
• Two wires RS485 MODBUS RTU port.
• A control panel ready design. Installation in a control room directly. Save time to design and make panel.
• Four digital inputs (BI) to monitor running status, overload interrupt, filter, smoke detector.
• Two 12bit analog inputs (AI), the first one for 10K (25 ) NTC thermistor, range 0 ℃ ～ 70 , the second one for 0~10Vdc ℃ or 4~20mA signal inputs, to monitor valve position, humidity sensor, CO2 sensor. Input signal type is selectable by the system management software.
• One 8A/250VAC dry contact output (BO) can drive fan directly.
• One PID analog output (AO), output signal can be 4~20mA or 0~10Vdc, control damper or valve motor.
• Eight operation buttons for start/stop, temperature setting, alarm confirm, and setting.
• Selectable alarm style as LCD code display, LCD backlight flash, or buzzer
• Password setting for each user group. Time display, show current system time.
• Fail-save function, keep save all setting status in flash memory.

View more detailed specifications (PDF).