Installation Azbil Corporation2-12 Model MGG10C/14C - MagneW FLEX+/PLUS+ ConverterGroundingCAUTIONELECTRIC SHOCK HAZARD! Grounding is essential for accuratemeasurement. The grounding resistance must be less than 100W.Signal and excitation cable specificationsFor remote installations, the converter and detector are connected using a set ofdedicated cables (Model MGA12W). The signal cable connects the output signalof the detector to the converter and the excitation cable feeds the excitation currentto the detector. You can obtain these cables from Azbil Corporation or purchasecommercially available cables. Integral flowmeters already contain the converter todetector connections.The cables between the detector and converter should be no longer than 300 m (984ft.), but the actual length depends on conductivity of the fluid being measured.The following cable diameters apply:Signal cable - 11.4 mm (0.45 in.), 0.75 mm2 (.0011625 sq. in.) or equivalentcommercially available cable (CVVS or CEEV, for example)Excitation cable - 10.5 mm (0.41 in.), 2 mm2 (.0031 sq. in.) or equivalentcommercially available cable (CVV, for example)Cable dimensions and construction are shown on the following pages.The following graphs show the ratio of fluid conductivity to cable length and showcable usage ranges for different diameter cables. The acceptable usage range for AzbilCorporation’s cable Model MGA12W cables encompass both areas A and B in thegraphs below while commercially available cables are limited to area A only.Figure 2-10 Cable usage ranges
