Tecfluid TH7 - Manual (Page 11)

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Summary of the main communication characteristics:
Electrical characteristics referred to the analog loop and communications:
Reception impedance:
Rx > 3,3 MΩ
Cx < 1000 pF
6.1 Additional functions with HART communication
By means of the implemented commands, the user can obtain the following information:
 Flow rate value in the scale units
 Totalizer value (even if the equipment does not have a display).
 Reset or writing of a totalizer value.
 Change of beginning and end of scale of the current loop.
 Possibility of writing tags and messages into the instrument.
6.2 HART communication characteristics
The detail of the characteristics with respect to the HART communication are available in
the corresponding “Field Device Specification” document.
Manufacturer, Model and Revision Tecfluid S.A., TH7H, Rev. 0
Device type Transmitter
HART revision 6.0
Device Description available No
Number and type of sensors 1
Number and type of actuators 0
Number and type of host side signals 1, 4 – 20 mA analog
Number of Device Variables 2
Number of Dynamic Variables 1
Mappable Dynamic Variables No
Number of Common Practice Commands 5
Number of Device Specific Commands 0
Bits of Additional Device Status 12
Alternative working modes? No
Burst mode? No
Write Protection? Yes