Bartington Mag628 Operation Manual

Contents

Bartington Mag628 Operation Manual Manual pdf 6 page image

BARTINGTON INSTRUMENTSPage 6 of 13 OM2808/34.2. Connection Recommendations4.2.1. Cables and connectionsNote: Cables are particularly prone to wear and damage if twisted, flexed beyond theirdesign limits, or subjected to excessive or repeated movement. It is recommendedthat all cables are mounted securely in place. For further details refer to MountingRecommendations.Mag628 and Mag669Note: The sensor head cable is supplied without a connector. The customer must providethe connection between the sensor head cable and the electronics assembly. Connectiondetails are provided in outline drawing DR2591, available from Bartington Instruments.Mag629Note: The cable between the sensor head and electronics module of the Mag629 is anintegral part of the sensor head and cannot be modified except at Bartington Instruments.Note: To connect your Mag629 to a data acquisition unit via a recommended matingconnector, you will need to refer to outline drawing DR2591 for cable and connector details,pinouts, etc.InterfaceThe electronics assembly is plugged directly via PL1 and PL2 onto the customer’s electronicsPCB (motherboard) using connectors and screws detailed in outline drawing DR2591.Power suppliesCaution: Power is supplied by the customer as per the product brochure. Current isspecified in the product brochure. There is no protection on the electronics assembly;the customer must ensure that the correct voltages are provided on the motherboardconnectors.Signals and groundThe 0V (ground) for the unit is applied to PL1 4, 5 ,8 and 10 alongside the power supply.Note: The ground voltages on PL2 pins 1 and 5 are the returns for the sensor excitationand detection respectively; they are connected on the electronics PCB and should not beconnected to the 0V plane of the customer’s motherboard.PL2 pin 9 is used to detect if the sensor head is connected; it is connected to pin 5 through thesensor head wiring. When sensor is connected, pin 9 is grounded and the test signal is cleared.