Control 0-10Vdc, 4-20mA or/and floating equipment. General* The HL8102 series digital temperature controlleris a microprocessor-based controller with digital LCD display.* The controller are used to control room temperature in industrial, commercial and residential environment via controlling electric modulating valve or damper with 0-10Vdc(4-20mA) signal or floating control.* The controller provided proportional plus integral (PI) control with modulating and floating control output.Application* Temperature control for variable air volume (VAV) box* Temperature control for VAV with reheat box* Modulating / Floating valve* Modulating / Floating damper* Constant temperature controlFeatures* Digital display of sensing temperature and user selected temperature setting on demand* Proportional plus integral (PI) advanced control with analog signal output* 0-5Vdc,1-5 Vdc,0-10Vdc or 2-10Vdc signal and floating output* Direct / reverse acting output* Output limited for over load protection* Energy saving mode-external energy savings input (ESI) from card key or occupancy sensors* Adjustable unoccupied setpoint for heating and cooling mode control* Sleep mode control* Model available for build-in or remote sensor (RS) function* Remote control (RC) output for interlocking on/off control application* Non-volatile memory (EEPROM) retains user settings during power loss* Large LCD display with blue backlight* °C or F display unit* Adjustable maximum and minimum setpoint limits* Adjustable deadband (some dual outputs model)* Control off output when system switch at "OFF" position* RS-485 network interface* Modbus RTU protocolTechnical data* Power Supply: 24Vac ( 10%), 50/60 Hz* Setpoint Range: 0 to 99.5°C (programmable)* Display Range: 0 to 50.0°C* Display: LCD display* Sensor: NTC* Setting Unit: 0.5°C / step* Indication Accuracy: 0.1°C* Electrical Rating: 0.8 A run, 5 A inrush up to 250Vac* Dimension: 86x86x23mm H x W x D

Digital Temperature Controller