Proline Promass 83E/F/O Description of Device Functions - FMC ...
Proline Promass 83E/F/O Description of Device Functions - FMC ...
Proline Promass 83E/F/O Description of Device Functions - FMC ...
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<strong>Device</strong> <strong>Functions</strong> <strong>Proline</strong> <strong>Promass</strong> 83<br />
9 Block BASIC FUNCTION<br />
9.2.2 Function group EPD PARAMETER<br />
BASIC FUNCTION G HART GAA<br />
<br />
PROCESS PARAMETER GIA CONFIGURATION 640<br />
<br />
EPD PARAMETER 642<br />
Function description<br />
BASIC FUNCTION PROCESS PARAMETER EPD PARAMETER<br />
EMPTY PIPE DETECTION<br />
(6420)<br />
Use this function to activate the empty pipe detection (EPD). With empty measuring<br />
tubes the density <strong>of</strong> the fluid falls below the value specified in the function EPD VALUE<br />
LOW.<br />
Options:<br />
OFF<br />
ON<br />
Factory setting:<br />
Liquid: ON<br />
Gas: OFF<br />
" Caution!<br />
• Select a correspondingly low EPD response value in the function EPD VALUE LOW, so<br />
that the difference to the effective density <strong>of</strong> the fluid is sufficiently large enough. This<br />
ensures that totally empty measuring tubes and not partially filled ones are detected.<br />
• For gas measurement we strongly recommend to switch <strong>of</strong>f empty pipe detection.<br />
EPD VALUE LOW<br />
(6423) ! Note!<br />
This function is not available unless the ON selection was selected in the EMPTY PIPE<br />
DETECTION function.<br />
Use this function to set a lower threshold for the measured density value, in order to<br />
detect possible problems in the process indicated by too low density.<br />
User input:<br />
5-digit floating-point number<br />
Factory setting:<br />
0.2000 kg/l<br />
EPD VALUE HIGH<br />
(6424) ! Note!<br />
This function is not available unless the ON selection was selected in the EMPTY PIPE<br />
DETECTION function.<br />
Use this function to set an upper threshold for the measured density value.<br />
User input:<br />
5-digit floating-point number<br />
Factory setting:<br />
6.0000 kg/l<br />
EPD RESPONSE TIME<br />
(6425)<br />
Use this function to enter the time span for which the criteria for an empty pipe have to<br />
be satisfied without interruption before a notice message or fault message is generated.<br />
User input:<br />
fixed-point number: 1.0...100 s<br />
Factory setting:<br />
1.0 s<br />
Issue/Rev. 0.2 (12/12) MN0M023 • Page 125