Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART
Commissioning
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 (
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 (
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 (
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
(
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]
