GEM 1434 mPos User Manual

7.6.6 Positioner data
Note: Interferences to the set value signal can affect positioner activities
Following diagram valid for valves with standard correlation between spindle position and valve po-
sition.
(See section "Mechanical data, correlation between travel sensor spindle/valve position")
Control diagram:
0
4
0
mA
mA
V
20
20
10,0
15
16
7,5
10
12
5,0
5
8
2,5
0
75
100
50
25
Valve opening degree [%]
The GEMÜ 1434 μPos digital electro-pneumatic positioner automatically detects the control func-
tion of the valve during initialization: Normally open (NO) or normally closed (NC).
For the 0/4 mA or 0 V signal specification, the position of the valve is closed.
The close tight function integrated as standard ensures that the valve is moved completely to the
end position when the signal Open or Close valve is given.
Control error: ≤ 1% (standard)
≤ 2% (K-no. 2442)
≤ 5% (K-no. 2443)
Initialisation: Automatic via 24 V DC signal
Close tight function: Closed: W ≤ 0.5%
Open: W ≥ 99.5%
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7 Technical data

GEM 1434 mPos Specifications

General

Brand	GEM
Model	1434 mPos
Category	Valve Positioners
Language	English