Measuring Gas Velocity with the D-FL 100 Differential Pressure Bar

D−FL 100 Seite 144.3. Electrical ConnectionsIf a 19-inch cabinet is available, the D-FL 100-10 Display can be ordered as a rack mount system.Electricity is connected via two socket racks at the rear of the unit as shown in Figs. 14 and 15.If the D-FL 100-10 Display cannot be installed in a cabinet, it can be ordered with its own housing. Inthis case, the electrical connection is made via a 20-pin terminal strip in the terminal part of the housingas shown in Fig. 17. The electrical connection between the differential pressure transducer and the D-FL 100-10 Display is a cable attached to the transducer. The cables for main current, status signal,recorder output and alarm contact should be installed separately. The connection to the recorder shouldbe shielded.If the D-FL 100-10 is not used, the transducer must be supplied directly with auxiliary current from a UH11...30 VDC unit. The connections are behind the housing cover. (Fig. 13). The output of the transduceris read from the load R. The maximum load is calculated as follows:(Eq. 8)U Haux. energy in VFig. 13:Electrical connection of the transducerCAUTION!With all installations involving D-FL 100-10 differential pressure transducers andD-FL 100-10 Displays, the currently applicable VDE guidelines and any supplementarystipulations of local energy-generating utilities must be observed.GmbH