Endress+Hauser Proline Prowirl 73 - Page 179

Proline Prowirl 73 Description of device functions
Endress+Hauser 179
REYNOLDS-NO. Prerequisite
• The function is only available if the following was selected in the SELECT FLUID
function (ä 143):
– SATURATED STEAM
– SUPERHEATED STEAM
– NATURAL GAS AGA NX-19
–ARGON
–METHANE
–WATER
– COMPRESSED AIR
– CARBON DIOXIDE
– NITROGEN
–OXYGEN
• The function is not available if:
– REAL GAS was selected in the SELECT FLUID function (ä 143) or
– Any constituent was selected in the GAS MIXTURE function (ä 159) if OTHER
was selected for the gas type
Description
The Reynolds number appears on the display. The Reynolds number is determined using
the fluid selected and the measured temperature.
Display
8-digit fixed-point number (e.g. 25800)
REYNOLDS WARNING Prerequisite
• The function is only available if one of the following was selected in SELECT FLUID
(ä 143):
– SATURATED STEAM
– SUPERHEATED STEAM
– NATURAL GAS AGA NX-19
– NATURAL GAS AGA8-DC92
– NATURAL GAS ISO 12213-2
–WATER
– COMPRESSED AIR
– CARBON DIOXIDE
– NITROGEN
–OXYGEN
• The function is not available if:
– REAL GAS was selected in SELECT FLUID (ä 143) or
– Any constituent was selected in GAS MIXTURE (ä 159) if OTHER was selected
for the gas type
Description
Use this function to activate monitoring of the Reynolds number.
If monitoring is activated and a Reynolds number < 20 000 is found, 
notice message #494 RE < 20 000 (ä 68) appears on the display.
• If the Reynolds number is < 20 000, the accuracy of the measuring device is reduced.
• No fault message is output at zero flow.
• The notice message is not displayed if REYNOLDS NO. was selected in the ASSIGN
LOW FLOW CUT OFF function (ä 141).
Options
OFF (function switched off)
ON
Factory setting
OFF
Function description, EXTENDED DIAGNOSTIC group