Panametrics Sentinel LCT, Руководство пользователя

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Sentinel LNG User’s Manual 19
Chapter 2. Installation
2.4 Making Electrical Connections
This section contains instructions for making the necessary electrical connections to the flow transmitter (see
Figure 9 below). The wiring between transmitter and transducers has been accomplished at the factory. No further
work is required on this portion of the wiring.
IMPORTANT: When wires are connected to terminal blocks, use wire ties routed through the blocks, to secure them.
WARNING!
To meet CE Mark requirements, all cables must be installed as described in Appendix B,
CE Mark Compliance .
IMPORTANT: The meter spoolpiece is grounded to the electronics. This configuration must be considered when
applying cathodic protection to the pipe line. The power ground applied to the instrument should be at
the cathodic protection voltage level.
Figure 9: Sentinel LNG Flow Measurement System Connections
Sentinel
Temperature Pressure
RS232
or
RS485
Power
RS485/RS232 Modbus
Flow
Computer
Corrected
Volumetric
Flow
PanaView™
Instrument Interface
Software
Meter Calibration, Data Collection,
Configuration, and Security
2 Frequency
2 Alarms
1 Analog Output (4-20 mA) with HART
3 Analog Inputs (4-20 mA) or
Sentinel LNG
2 Analog Inputs (4-20 mA) +
1 RTD Input