Commissioning Deltabar FMD71, FMD72
54 Endress+Hauser
Description
5 Select a level unit via the "Height unit (026)"
parameter, here "m" for example.
Menu path: Setup → Extended setup → Level →
Height unit
A0034737
C See table, step 10.
D See table, step 8.
E See table, step 9.
F See table, step 11.
G See table, step 12.
h Height
i Current value
p Pressure
v Volume
6 Select the "Wet" option via the "Calibration
mode (027)" parameter.
Menu path: Setup → Extended setup → Level →
Calibration mode
7 Vessel is filled up to 0.5 m (1.6 ft), (49 mbar
(0.72 psi)).
Enter the volume value for the lower
calibration point via the "Empty calib. (028)"
parameter, here 0 liters for example.
Menu path: Setup → Extended setup → Level →
Empty calib.
8 Vessel is filled up to 4.5 m (15 ft), (441 mbar
(6.40 psi)).
Enter the volume value for the upper
calibration point via the "Full calib. (031)"
parameter, here 1 000 l (264 gal) for example.
Menu path: Setup → Extended setup → Level →
Full calib.
9 Enter the density of the calibration medium in
"Adjust density (034)", here 1 g/cm3 (1 SGU),
for example.
Menu path: Setup → Extended setup → Level →
Adjust density
10 Set the volume value for the lower current
value (4 mA) via the "Set LRV (166)" parameter
(0 l).
Menu path: Setup → Extended setup → Current
output → Set LRV
11 Set the volume value for the upper current
value (20 mA) via the "Set URV (167)"
parameter 1 000 l (264 gal).
Menu path: Setup → Extended setup → Current
output → Set URV
12 If the process uses a medium other than that
on which the calibration was based, the new
density must be specified in the "Process
density (035)" parameter.
Menu path: Setup → Extended setup → Level →
Process density
13 Result:
The measuring range is configured for
0 to 1 000 l (0 to 264 gal).
For this level mode, the measured variables %, level, volume and mass are available,
see "Unit before lin. (025)" → 86.
9.10.6 "In height" level selection Calibration without reference
pressure (dry calibration)
Example:
In this example, the volume in a tank should be measured in liters. The maximum volume
of 1 000 l (264 gal) corresponds to a level of 4.5 m (15 ft). The minimum volume of 0