Endress+Hauser Proline Prosonic Flow 93C Description Of Device Functions page 99

Device functions Proline Prosonic Flow 93C PROFIBUS DP/PA
Endress+Hauser
BASIC FUNCTION → PROCESS PARAMETER (CH1 to CH2) → LIQUID DATA
SOUND VELOCITY This function displays the sound velocity of the liquid. This is determined via the values
LIQUID entered in the LIQUID (6540) and TEMPERATURE (6541) functions. If you edit the
(6542) predetermined value the LIQUID function (6540) will be reset to the option OTHERS.
The sound velocity of the liquid must be entered if the liquid is not listed in the
LIQUID function (6540) and the OTHERS option was selected.
Transmitter search range:
The measuring device searches for the measuring signal within a defined sound velocity
range. You specify the search range in the SOUND VELOCITY NEGATIVE (6545) or
SOUND VELOCITY POSITIVE (6546) functions. An error message is displayed if the
sound velocity of the liquid exceeds the search range.
!
We recommend you select a smaller search range by unfavorable signal conditions
(signal strength < 50%).
1 = Sound velocity of the liquid
➁
function (6545)
➂
function (6546)
User input:
Fixed-point number 400 to 3000 m/s
Factory setting:
1485 m/s
VISCOSITY This function displays the viscosity of the liquid. This is determined via the values entered
(6543) in the LIQUID (6540) and TEMPERATURE (6541) functions. If you edit the
predetermined value the LIQUID function (6540) will be reset to the option OTHERS.
The viscosity must be entered if the liquid is not listed in the LIQUID function (6540) and
the OTHERS option was selected.
User input:
Fixed-point number 0.0 to 5000.0 mm
Factory setting:
1 mm
SOUND VELOCITY Use this function to specify the lower search range for the sound velocity of the liquid.
NEGATIVE
(6545) User input:
Fixed-point number 0 to 1000 m/s
Factory setting:
500 m/s
!
See the explanations in the SOUND VELOCITY LIQUID function (6542).
Functional description
Note!
0-1000
2
= Lower search range: is specified in the SOUND VELOCITY NEGATIVE
= Upper search range: is specified in the SOUND VELOCITY POSITIVE
2
/s
Note!
8 Block BASIC FUNCTION
0-1000
v [m/s]
3
1
2
/s (cSt)
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