Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus Level measurement (via local operation and FieldCare)
Endress+Hauser 111
!
Note!
1. For this level mode, the measured variables %, level, volume and mass are available. → See
also parameter description for OUTPUT UNIT (023), → ä 152.
4 If necessary, select the "Level easy height" level mode
using the LEVEL SELECTION parameter.
Local operation:
Menu path: GROUP SELECTION → MEASURING
MODE "Level" → LEVEL SELECTION
FieldCare:
Menu path: OPERATING MENU → SETTINGS →
BASIC SETUP → MEASURING MODE "Level" →
LEVEL SELECTION
P01-xxxxxxxx-05-xx-xx-xx-029
P01-xxxxxxxx-05-xx-xx-xx-030
Fig. 24: Calibration with reference pressure –
wet calibration
1 See Table, Steps 10 and 11.
2 See Table, Step 12.
3 See Table, Step 13.
5 Local operation:
Select the BASIC SETUP function group. Menu path:
GROUP SELECTION → OPERATING MENU →
SETTINGS → BASIC SETUP
6 Select a pressure unit via the PRESS. ENG. UNIT
parameter, here mbar for example.
7 Select a volume unit via the OUTPUT UNIT parameter,
here l (liters) for example.
8 Select a height unit via the HEIGHT UNIT parameter,
here m for example.
9 Select the "Wet" option by means of the CALIBRATION
MODE parameter.
10 Select a density unit via the DENSITY UNIT parameter,
here kg/dm
3
for example.
11 Enter the density of the fluid using the ADJUST
DENSITY parameter, here 1 (liter) for example.
12 Enter the volume value for the lower calibration point
via the EMPTY CALIB. parameter, here 0 l for example.
(The hydrostatic pressure currently measured is
displayed as a height value, here 0.5 m (1.6 ft) for
example.)
13 Enter the volume value for the upper calibration point
via the FULL CALIB. parameter, here 1000 l (264 US
gal) for example. (The hydrostatic pressure currently
measured is displayed as a height value, here 4.5 m (15
ft) for example.)
14 Result:
The measuring range is set for 0 to 1000 l (264 US gal).
Description
4.5
0.5
h
[m]
49 441
p
[mbar]
h =
p
r · g
r = 1
g
cm
3
➀
1000
0
V
[l]
0.5 4.5
➁
➂
h =
p
ρ · g
h
[m]