Baker Hughes Panametrics PanaFlow LC, Руководство пользователя

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Table 41: Available measurement values and parameters
in the channel TB
Channel TB
Measurements and
Parameters
Measurement Parameter
CH_SOUND_SPEED R
CH_TRANSIT_TIME_UP R
CH_TRANSIT_TIME_DN R
CH_DELTA_T R
CH_UP_SIGNAL_QUALITY R
CH_DN_SIGNAL_QUALITY R
CH_UP_AMP_DISC R
CH_DN_AMP_DISC R
CH_GAIN_UP R
CH_GAIN_DN R
CH_SNR_UP R
CH_SNR_DN R
CH_UP_PEAK R
CH_DN_PEAK R
CH_PEAK_PCT_UP R
CH_PEAK_PCT_DN R
CH_NUM_ERRRORS_
OF_16
R
CH_WEIGHT_FACTOR R/W
CH_TBC R/W
CH_TW R/W
CH_PATH_LENGTH R/W
CH_AXIAL_LENGTH R/W
CH_TRANSMIT_DELAY R/W
CH_DELTA_T_OFFSET R/W
CH_PCT_PEAK R/W
CH_TRANSDUCER_TYPE R/W
CH_TRANSDUCER_FREQ R/W
CH_ERRORS_ALLOWED R/W
CH_TRANSDUCER_
NUMBER
R/W
CH_PATHCONFIGURATION R/W
H.9 Analog input block
The Analog Input ( AI ) Block (see Figure 138 below) is
designed as a generalized signal conditioning function. The
output from an AI block can be connected to the Fieldbus.
The AI block receives and processes data measured by the
Transducer Block and provides additional functions such as
scaling, filtering, alarm generation, and trending.
Figure 138: Analog input (AI) block
H.10 PID block
The PID function offers control based on a programmable
algorithm. The PID function block may be used with a valve
to control flow.
Note: See Foundation Fieldbus Specifications for more detail
on use of the PID Block.
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