Control diagram:
4
mA
20
16
12
8
0
75
100
50
25
Valve opening degree [%]
During initialization, the 1441 cPos-X positioner automatically detects the control function of the
valve and is adjusted by default so that the valve is closed when the signal is 4 mA*.
The assignment can subsequently be changed using parameters. The close-tight function that is in-
tegrated as standard ensures that the valve is moved completely to the end position when the sig-
nal Open or Close valve is given.
* For double acting actuators, depends on the pneumatic actuator
Positioner information:
Control error:
(Dead zone)
1% default setting
0.1–25.0% (can be set at fixed values)
0.1–25.0% (adaptive self-adjustment)
Parameterization:
Via app or HART
Initialization:
Automatic via magnetic switch, app, digital input
or HART
Close tight function:
Closed: W ≤ 0.5% Open: W ≥ 99.5% (can be
changed via the app)
Interface:
Bluetooth Low Energy
HART
Function
Parameterization, configuring,
diagnostics
Parameterization, configuring,
diagnostics
Device status via app
1)
Protocol Version 7
Device status via EDD
Prerequisite
Compatible smartphone/tablet with
Android or iOS
1)
- Apple iOS: Version 11 or higher
- Android: Version 7.0
("Nougat") or higher
- Bluetooth 4.0 LE or newer
-
1)
The compatible GEMÜ app can be downloaded in the respective stores (Apple App Store or
Google Play Store).
GEMÜ 1441 cPos-X
www.gemu-group.com
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6 Technical data