Endress+Hauser Deltabar FMD72, Operating Instructions Manual

Page: 59 / 108

Deltabar FMD72 Commissioning
59
11.9.2 Calibration with reference pressure (wet calibration)
Example:
In this example, a device with a 400 mbar (6 psi) sensor module is configured for the 0 to +300
mbar (4.4 psi) measuring range, i.e. the 4 mA value and the 20 mA value are assigned 0 mbar and
300 mbar (4.4 psi) respectively.
Prerequisite:
The pressure values 0 mbar and 300 mbar (4.4 psi) can be specified. For example, the device is
already installed.
For a description of the parameters mentioned, see the "Description of device parameters" (
®
ä
75) section.
Description
1
Perform position adjustment (
®
ä 44).
20
4
I
[mA]
0 300
p
[mbar]
A0017671
1 See table, step 4.
2 See table, step 5.
2 Select the "Pressure" measuring mode via the
"Measuring mode (005)" parameter.
Menu path: Setup
® Measuring mode
3 Select a pressure engineering unit via the "Press Eng.
Unit (125)" parameter, here "mbar" for example.
Menu path: Setup
®
Press Eng. Unit
4 The pressure for the LRV (4 mA value) is present at
the device, here 0 mbar (0 psi) for example.
Select the "Get LRV (015)" parameter.
Menu path: Setup
®
Extended Setup
®
Current
output
®
Get LRV.
Confirm the present value by selecting "Apply". The
present pressure value is assigned to the lower
current value (4 mA).
5 The pressure for the URV (20 mA value) is present
at the device, here 300 mbar (4.4 psi) for example.
Select the "Get URV (016)" parameter.
Menu path: Setup
®
Extended Setup
®
Current
output
®
Get URV
Confirm the present value by selecting "Apply". The
present pressure value is assigned to the upper
current value (20 mA).
6 Result:
The measuring range is configured for 0 to +300
mbar (4.5 psi).
11.10 Backing up or duplicating the device data
The following options are available to you with an operating tool that is based on FDT
technology (e.g. FieldCare):
• Storage/recovery of configuration data.
• Duplication of device parameters.
• Transfer of all relevant parameters when replacing electronic inserts.
Use the following parameter for this:
Download select. (visible only in FieldCare)
Navigation
Expert
®
System
®
Management
®
Download select.