Endress+Hauser Deltabar PMD78B, Руководство по эксплуатации

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Deltabar PMD78B HART Commissioning
Hauser 49
Closed vessel with superimposed vapor
Before adjusting the device, the piping may need to be cleaned and filled with medium.
A
II
I I I
III
–
P2
+
P1
6 7
3
2 4
I
1 5
+
–
B
ESC
-
+
E
A0030040
I Device
II Three-valve manifold
III Separator
1, 5 Drain valves
2, 4 Inlet valves
3
Equalization valve
6, 7 Vent valves on device
A, B Shutoff valves
1. Fill the vessel to above the lower tapping point.
2. Fill the measuring system with medium.
 Open A and B (shutoff valves).
Fill the negative pressure piping to the height of the condensate trap.
3. Vent device.
 Open 2 and 4 (introduce fluid).
Open 6 and 7 until the system (piping, valve and side flange) is completely filled
with medium.
9.6.3 Commissioning with keys on the electronic insert
The following functions are possible via the keys on the electronic insert:
• Position adjustment (zero point correction)
The orientation of the device may cause a pressure shift
This pressure shift can be corrected by a position adjustment
• Setting lower range value and upper range value
The pressure applied must be within the nominal pressure limits of the sensor (see the
specifications on the nameplate)
• Resetting the device
Carrying out position adjustment
1. Device installed in desired position and no pressure applied.
2. Press the "Zero" and "Span" keys simultaneously for at least 3 s.
3. When the LED lights up briefly, the pressure present has been accepted for position
adjustment.