Panametrics DigitalFlow XGF868i, Руководство для стартапов

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DigitalFlow™ XGF868i Startup Guide 11
Chapter 1. Installation
1.7.2.2 Local or Remote Electronics Enclosure with Remote Preamplifiers (cont.)
Attention European Customers!
To meet CE Mark requirements, all cables must be installed as described in
Appendix A, CE Mark Compliance .
4. For a 2-Channel XGF868i, repeat steps 1-3 to connect the CH2 transducers to terminal block J4 in the electronics
enclosure. Note that it is not required that both channels of a 2-channel unit be connected.
5. If wiring of the system has been completed, reinstall the rear cover and o-ring on the electronics enclosure and
tighten the set screw.
Note: A channel must be activated in the Channel Menu before it can begin taking measurements. See Chapter 2,
Initial Setup , for instructions.
1.7.3 Wiring Std 0/4-20 mA Analog Outputs
The standard configuration of the XGF868i flow transmitter includes two isolated 0/4-20 mA analog outputs
(designated as outputs 1 and 2). Connections to these outputs may be made with standard twisted-pair wiring, but
the current loop impedance for these circuits must not exceed 600 ohms.
To wire the analog outputs, complete the following steps:
1. Disconnect the main power and remove the rear cover.
2. Install the required cable clamp in the chosen conduit hole on the side of the electronics enclosure.
3. Refer to Figure 7 on page 21 for the location of terminal block J1 and wire the analog outputs as shown. Secure the
cable clamp.
Note: Analog outputs 1 and 2 in the wiring diagram correspond to analog outputs A and B in Slot 0 in the XGF868i
software.
4. If wiring of the unit has been completed, reinstall the rear cover on the enclosure and tighten the set screw.
Note: Prior to use, the analog outputs must be set up and calibrated. See Chapter 1, Calibration , of the Service
Manual for detailed instructions.
WARNING!
To meet CE Mark requirements, all cables must be installed as described in
Appendix A, CE Mark Compliance .
WARNING!
Make sure that both covers with the o-ring seals are installed and the set screws
are tightened before applying power to the unit in a hazardous environment.