Vega VEGADIF 65 Operating Instructions Manual page 58

4 ... 20 ma differential pressure transmitter with metallic measuring diaphragm

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7 Setup

Measurement setup for

closed vessels

Prepare the adjustment

III

Fig. 47: Preferred measurement setup for closed vessels

VEGADIF 65

3-fold valve block

III Separator

1, 5 Drain valves

2, 4 Inlet valves

6, 7 Vent valves on VEGADIF 65

A, B Blocking valves

Proceed as follows:

1. Fill the vessel to just above the lower tap

2. Fill measuring system with medium

Close valve 3: Separate plus and minus side

Open valve A and B: Open block valves

3. Vent plus side (probably empty minus side)

Open valve 2 and 4: Discharge medium on the plus side

Briefly open valve 6 and 7, then close again: Fill the plus side

completely with the medium and remove air.

4. Set measurement loop to operation

Now:

Valve 3, 6 and 7 are closed

Valves 2, 4, A and B are open

Then carry out adjustment, see below.

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III

VEGADIF 65 • 4 ... 20 mA

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