OHAUS Defender 5000 TD52P Service Manual

Also see for Defender 5000 TD52P: Instruction manual

8 Defender 5000 Indicators Service ManualTD52XWRemove the four hex head screws from the rear housing.Open the housing by carefully pulling the front housing forward.Once all connections are made, reattach the front housing.The screws should be tightened to 2.5 N•m (20-25 in-lb) torque to ensure a watertight seal.1.7.2 Scale Base Without ConnectorFor connecting bases (which do not have the connector) to a TD52P or TD52XW, a cable gland kit (P/N30379716) is available as an accessory.Removing the pre-installed Load Cell connector and wiring harnessBefore doing the connections, remove the pre-installed Load Cell connector and wiring harness by followingthe steps below.1. Open the housing by carefully pulling the front housing forward.2. Unplug the white load cell connector from the main PCBA board (red circle).3. Remove the metal terminal (Figure 1-1, item 12) connector from the rear housing.(green circle)Installing Cables and ConnectorsIn order to meet certain electrical noise emission limits and to protect the TD52P and TD52XW fromexternal influences, it is necessary to install a ferrite core on the load cell cable connected to the terminal.The ferrite core is included with the terminal.To install the ferrite, simply route the cable through the center of the core and then take one wrap aroundthe outside of the core and route the cable through the center again. Either the complete cable or theindividual wires can be wrapped through the ferrite. This should be done as close to the enclosure aspossible. See Figure 1-5.Figure 1-5Main Board Wiring ConnectionsOnce the TD52P and TD52XW enclosure is open, connections can be made to the terminal strips on themain board, as shown in Figure 1-6.