ABB AK101 User Manual

ABB AK101 User Manual Manual pdf 23 page image

21Zero AdjustmentPotentiometerMeasuringUnitTubingConnectionsTerminal Block (TB1)DummyRemote ZeroResistorRemove whenConnectingRemote ZeroMounting Pillars109121110987654321Inlet Outlet–––++Make the wiring connections in accordance with the information given in the wiring diagram Fig. 5.6 and Section 5.1.Refer Fig. 5.7 for connections to cubicle-mounted display unit.Caution. The integrity of the fail-safe operation of the zener diode safety barrier devices depends on an Intrinsically SafeEarth connection which must not have a resistance greater than 0.1 to the application plant earth (ground).Make the Earth (Ground) and Safety Earth connection at the stud (TS1) – see Fig. 5.5.On completion of wiring and checks, replace the outer case and secure the clamping brackets to the mounting panel.5.1.2 Model 006540 203 and 006548 000 Katharometer Analyzer PanelRefer also to IM/6517-6518 for further details.To gain access to the connection terminal block TB1:1) Remove four screws in the cover of the katharometer unit.2) Remove coverMake the electrical connections to the Display Unit in accordance with the information given in wiring diagrams in Figs 5.6, 5.7 and5.8 and Section 5.2.The electrical connections are made at the terminal block (TB1) via the cable gland or any replacement gland to suit the intrinsicallysafe wiring requirements. When the appropriate interconnections have been made, if remote zero is to be used, remove the 510dummy remote zero resistor from across terminals 9 and 10 and set the zero adjustment potentiometer on the katharometer to theapproximate mid-point.Replace the cover when wiring is complete.5 ELECTRICAL INSTALLATION...Fig. 5.8 Location of Components Inside Case – Model 006539 and 006548 Type Katharometer Unit