CALAIR-PR-2F

Pressure regulator with built-in pressure sensor, external sensor, Modbus RTU communication, clock function, alarm relay and digital inputs. Complete with hose and hose nipples. Used for pressure regulation, outside temperature control and outside temperature compensated pressure regulation of fans in systems with the possibility of forcing. • Clear OLED display • Simple programming • Modbus communication • Built-in pressure sensor • 2 digital inputs • Alarm relay - selectable settings • Alarm log • Control range: 0-2000 Pa • Adjustable control speed • Adjustment mode with selectable locked control signal • Supplied complete with 2 m hose and 2 hose nipples • Clock function with weekly schedule • Outdoor sensor FUNCTION: The CALAIR-PR pressure regulator measures the differential pressure and regulates the ventilation system's fan via a 0-10V signal. For outside temperature compensation of the setpoint, an outside temperature sensor is connected to the controller. The value for outdoor temperature can also be written to CALAIR-PR via Modbus. CALAIR-PR has two digital inputs that can be used for, among other things, activation of an alternative setpoint. Other selectable pre-programmed alarm functions are fan motor monitoring and input from fire alarm central. For these alarm functions, it is also possible to choose which output signal should apply and whether they should be reset automatically or manually. CALAIR-PR is equipped with an alternating potential-free alarm relay that can be programmed for different alarm indications, e.g. high and low pressure alarm. The ten most recent alarms are saved in an alarm log. CALAIR-PR can be read and programmed via Modbus RTU (RS485). The control speed is adjustable for adaptation to different pressure control applications, e.g. ceiling fans. Settings and programming are carried out via three push buttons which are accessible even when the cover is removed. All settings and programming performed via the menu system are saved in the event of a power failure. The function of the pressure regulator is guaranteed with a hose length of up to 100 m. After installation, check that air can flow freely through the hose. CALAIR-PR has a clock module for activation of alternative set point. The clock module has a battery backup so that the settings are not lost in the event of a power failure. Date and time as well as weekly schedule can be set. Minimum scheduling time is one hour. Cable entries: 1xM20 (cable 8-13 mm), 3xM12 (cable 3-6 mm). "Knockouts": 1xM16, 1xM12