GE DigitalFlow XGM868i, Startup Manual

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Chapter 1. Installation
8 DigitalFlow™ XGM868i Startup Guide
1.7.2 Wiring the Transducers
Before wiring the XGM868i transducers, complete the following steps:
•
disconnect the main power from the electronics enclosure
•
remove the rear cover and install all required cable clamps
Based on the location of the electronics enclosure, proceed to the appropriate sub-section for detailed instructions.
1.7.2a Flowcell-Mounted Enclosure
For an electronics enclosure mounted directly on the flowcell, wire the transducers as follows:
WARNING! Before connecting the transducers, take them to a safe area and discharge any static buildup by
shorting the center conductor of the transducer cables to the metal shield on the cable
connector.
Note: For transducer frequencies below 2 MHz, the cable lengths given for a pair of transducers must be within 4 in.
(10 cm) of each other. If the transducer frequency exceeds 2 MHz, the cable lengths must be within 0.5 in. (1.25
cm) of each other.
1. Locate the CH1 transducer cables and connect them to the two CH1 transducers in the flowcell. Feed the free ends
of the cables through the selected conduit hole in the electronics enclosure.
2. Refer to the wiring diagram in Figure 10 on page 25 and connect the transducer cables to terminal block
J3
. Then,
secure the cable clamp.
Note:
The RED cable leads are the SIG(+) leads and the BLACK cable leads are the RTN(-) leads.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables must be installed as described in Appendix A,
CE Mark Compliance .
3. For a 2-Channel XGM868i, repeat steps 1-2 to connect the CH2 transducers to terminal block
J4
. It is not required
that both channels of a 2-Channel unit be connected.
4. If wiring of the unit has been completed, reinstall the rear cover on the enclosure and tighten the set screw.
Note: A channel must be activated before it can begin taking measurements. See Chapter 2, Initial Setup , for
instructions.