Chapter 7. HART Communications
186
Sentinel LNG User’s Manual
7.11.1.8
Power
7.11.1.9
Energy
7.11.1.10 Time
7.11.1.11
Temperature
7.11.1.12 Analytical
7.12 Performance
7.12.1 Sampling Rate
All flow rates are updated at least 10 times per second. Auxiliary inputs, like pressure and temperature probes used to
refine flow calculations, are also updated at least 10 times per second.
7.12.2 Power-Up
The
Sentinel LNG
requires approximately 15 to 60 seconds to boot after it is energized, depending on whether the
non-volatile memory is being restored from default. No HART requests are processed during initiation. The analog
output will default to 4mA until the primary variable is available.
7.12.3 Device Reset
The
Sentinel LNG
reset performance is identical to Power-Up, described in the preceding section. The meter will
always exit fixed-current mode before resuming operation.
Class
Code
Variable
Classification
Unit Code
Unit Description
79
Power
Class
Code
Variable
Classification
Unit Code
Unit Description
77
Energy (FWD)
77
Energy (REV)
Class
Code
Variable
Classification
Unit Code
Unit Description
79
Power
Class
Code
Variable
Classification
Unit Code
Unit Description
64
Temperature
32
Degrees Celsius
33
Degrees Fahrenheit
34
Degrees Rankine
35
Kelvin
Class
Code
Variable
Classification
Unit Code
Unit Description
81
Analytical
57
Percent
Содержание Sentinel LCT
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Страница 12: ...Contents x Sentinel LNG User s Manual...
Страница 26: ...Chapter 1 Features and Capabilities Sentinel LNG User s Manual 14...
Страница 178: ...Chapter 5 Using PanaView 166 Sentinel LNG User s Manual...
Страница 184: ...Chapter 6 MODBUS Communications 172 Sentinel LNG User s Manual...
Страница 202: ...Chapter 7 HART Communications 190 Sentinel LNG User s Manual...
Страница 220: ...Chapter 9 Troubleshooting 208 Sentinel LNG User s Manual...
Страница 222: ...Appendix A Menu Maps 210 Sentinel LNG User s Manual...
Страница 230: ...Appendix A Menu Maps Sentinel LNG User s Manual 218...
Страница 232: ...Appendix B CE Mark Compliance and High Noise Areas 220 Sentinel LNG User s Manual...
Страница 236: ...Appendix C Data Records 224 Sentinel LNG User s Manual...
Страница 240: ...Appendix C Service Record 228 Sentinel LNG User s Manual...
Страница 244: ...Index 232 Sentinel LNG User s Manual...
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