Instruction Manuali-Series Sensors®i-Series Sensors - Rev. 00 as of 28.09.2012 Page 216.3.2 Outdoor and Open Vessel InstallationThe i-Series Intelligent Sensor can be simply mounted on a bracket, suitable forthe application and secured using either the 1" NPT rear thread or via the 1½″ or2″ front thread, dependant on model.Care should be taken to ensure that the i-Series Intelligent Sensor is not in-stalled in direct sunlight, in order to avoid errors in the measurement of ambienttemperature.Attention should also be taken, when mounting the unit, to ensure that strongwindy conditions are avoided, wherever possible, to prevent abnormal operation.Model Range L = Blankingi-3 3 metres (9.84 feet) 125mm (0.41 feet)i-6 6 metres (19.69 feet) 300mm (0.98 feet)i-10 10 metres (32.18 feet) 300mm (0.98 feet)i-15 15 metres (49.21 feet) 500mm (1.64 feet)‘L’ (Blanking) should as a minimum be at least that as detailed in the tableabove, but can be greater if required.Mounted via Rear 1″ NPT Thread Mounted via optional Front Thread6.3.3 Closed Vessel Installation“L” should as a minimum be at least that as detailed in the table above, but canbe greater if required. The i-Series Intelligent Sensor can be simply screwed intoa flange and secured using the rear 1" NPT rear thread or via the 1½″ or 2″ frontthread, dependant on model.Where possible use a flange made of a synthetic material such as PVC, in caseswhere a metal flange is used it is advisable to fit a suitable gasket between theflange of the i-Series Intelligent Sensor and the connection to the vessel.Stand Pipe InstallationsWhen mounting the i-Series Intelligent Sensor to a standpipe care should betaken to ensure that the standpipe is of sufficient diameter with reference to itslength, see the table below for details: