Wireless meter concentrator for electricity, gas and water meters. For 3 S0 interfaces and/or 3 AFZ scanners, only 0.1 watt standby loss. Modular device for DIN-EN 60715 TH35 rail mounting. 1 module = 18mm wide, 58mm deep. Connection to the Eltako-RS485 bus. Bus cross wiring and power supply with jumper. This meter concentrator concentrates the data of up to three electricity, data and water meters and supplies this data to the RS485 bus. Either for forwarding to an external computer or for sending over the Wireless Building System. Hook-up is either by connection to the S0 interface of the meters or by use of an AFZ scanner on each Ferraris meter. The scanner is bonded above the rotary disc of the meter and connected by its connecting wire to one of the S01-S03/GND terminals. The F3Z14D detects automatically whether an S0 interface or an AFZ is connected. The meter reading is entered into the display by two pushbuttons as well as the impulse rate (number of impulses or revolutions per kilowatt hour or cubic meter). The settings can be locked. Meter readings can be entered and read out using the PCT14 PC Tool. In addition, impulse rates can be entered. The default display is selectable and operation of the device is interlocked. The display is subdivided into 3 fields. Field 1: The default display is the unit of the meter reading currently displayed in field 3, either in kilowatt hours kWh or megawatt hours MWh or cubic meter M3 or cubic decametre DM3. Field 2: Momentary value of active power in watts and kilowatts or flow in centilitres and decilitres.