Instruction ManualNivuFlow Mobile 600page 44 NFM 600 - rev. 02 / 10.07.201927 (T-Shape) Antenna for GPRS Data Remote TransmissionThe accompanying T-shape antenna is required for data remote transmission via GPRS. Installation and connection procedure:1. Plug antenna cable into the socket on the unit (Fig. 27-1) and tighten the screwjoint manually.Fig. 27-1 Connection GPRS Antenna2. Install the antenna at the highest possible position of the manhole or on thedust pan.Note:The T-Shape mobile communications antenna shall be installed in such a waythat no persons are permanently (more than 6 minutes) present in a distance ofless than 25 cm from the antenna.As soon as the instrument operates correctly even shorter distances do normal-ly not mean a danger to public health since the unit transmits only briefly on themobile communications interface. As a precautionary measure this distanceshall be complied with anyway.3. If the unit is installed in a manhole close the manhole cover to verify that the da-ta transmission works correctly even with the cover closed.4. Set up a test connection using the communication parameter menu (see chap-ter “39 Parameter Menu Communication”, >Modem state< / >Test connection<)to verify data transmission. If the connection is poor change the antenna posi-tion until the data transmission is sufficient.