Electronic impeller type heat and heat/cooling energy meter set WFN683-L002H0E, Qp = 2.5 m3/h, wall-mounted, mounting length 130 mm, connection thread G1", sensor Ø 5.2x45 mm, M-Bus radio communication, OMS, encrypted with AES-128 data transmission

WFN683-L002H0E - Electronic impeller type heat and heat/cooling energy meter set WFN683-L002H0E, Qp = 2.5 m3/h, wall-mounted, mounting length 130 mm, connection thread G1", sensor Ø 5.2x45 mm, M-Bus radio communication, OMS, encrypted with AES-128 data transmission. The electronic, mains-independent impeller-type meters with their compact design are measuring devices for the physically correct acquisition of energy consumption. The meters have a static temperature measurement cycle (36sec). This allows precise energy measurement even with rapidly changing temperature and volume flows.They are available as wall-mounted versions in different sizes for heat and combined heat/cooling energy metering. The devices consist of a volume measuring unit, 2 permanently connected temperature sensors and a calculator that calculates the energy consumption from the flow rate and temperature difference. The consumption values determined by the meter can be read on the meter itself or remotely. The following meter variants are available: - Non-communicating meters (WF.50..) can be retrofitted by means of modules for reading via AMR/walk-by in S- or C-mode (WFZ662 / WFZ662C), M-Bus (WFZ51) or OMS encryption mode 5 (WFZ662CE). - Devices with M-Bus communication (WF.54..) also have 2 pulse inputs for reading 2 water meters (Reed contact). - Device sets (WF.68..) with pre-assembled radio add-on module for readout via AMR/walk-by in S- or C-mode - Device sets (WF.68..) with pre-assembled radio add-on module. For secure data transmission, impeller meters with an AES-128 encrypted data transmission according to OMS encryption mode 5 are available. Please note that national approvals for the billing of cooling energy may have to be considered for combined heating/cooling energy meters. The meters are supplied with Operating and Mounting Instructions in the following languages: Bulgarian, Croatian, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Lithuanian, Norwegian, Polish, Slovakian, Slovenian, Spanish and Turkish