Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART Commissioning
Endress+Hauser 91
6.12 Backup or duplicate device data
The device has no memory module. With an operating tool based on FDT technology (e.g.
FieldCare), you have the following options:
• Saving/rescuing configuration data
• Duplicating instrument configurations
• Transferring all relevant parameters when replacing electronic inserts.
Description
8 a. The pressure for the lower calibration point is
present at the device, here "0 mbar" for example.
b. Select the "Empty calib." parameter ( ä 115).
c. Enter the volume value, here "0 l" for example.
Menu path: Setup Extended setup Level
Empty calib.
P01-FMX21xxx-05-xx-xx-xx-029
P01-FMX21xxx-05-xx-xx-xx-030
Calibration with reference pressure (wet calibration)
1 See table, Step 10 .
2 See table, Step 8.
3 See table, Step 9.
9 a. The pressure for the upper calibration point is
present at the device, here "400 mbar" (6 psi) for
example.
b. Select the "Full calib." parameter ( ä 115).
c. Enter the volume value, here "1000 l" (264 US gal)
for example.
Menu path: Setup Extended setup Level
Full calib.
10 Enter the density of the medium, using the "Adjust
density" parameter ( ä 115), here 1 g/cm
3
(1 SGU)
for example.
Menu path: Setup Extended setup Level Adjust
density
11 If the process uses a medium other than the medium on
which the calibration was based, the new density must
be specified in the "Process density" parameter
( ä 116).
Menu path: Setup Extended Setup Level
Density process
12 Result:
The measuring range is set for 0 to 1000 l (264 US gal).
0 l corresponds to an output current of 4 mA.
1000 l (264 US gal) corresponds to an output current of
20 mA.
4.08
0
h
[m]
0 400
p
[mbar]
h =
p
r · g
r = 1
g
cm
3
➀
1000
0
V
[l]
0 4.0
➁
➂
h =
p
r · g
h
[m]
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