Model Number: HL8102 Brand Name: HaiLin Key Specifications/Special Features: The HL8102 series digital temperature controller is a microprocessor-based controller with digital LCD displayThe controller is used to control room temperature in industrial, commercial and residential environment via controlling electric modulating valve/damper with 0-10V DC (4-20mA) signal or floating controlThe controller provided proportional plus integral (PI) control with modulating and floating control outputApplication:Temperature control for variable air volume (VAV) boxTemperature control for VAV with reheat boxModulating/floating valveModulating/floating damperConstant temperature controlFeatures:
Digital display of sensing temperature and user selected temperature setting on demand
Proportional plus integral (PI) advanced control with analog signal output
0-5V DC, 1-5V DC, 0-10V DC, 2-10V DC or 4-20mA (0-20mA) 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 built-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
°F or °C display unit
Adjustable maximum and minimum setpoint limits
Adjustable deadband (some dual outputs model)
Control off output when system switch at off position
RS485 network interface
Modbus RTU protocol