KROHNE OPTIBAR P 3050 C EN - Manual (Page 24)

5
OPERATION
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OPTIBAR P 3050 C
www.krohne.com 03/2012 - 4001953401 - MA OPTIBAR P3050C R02 en
5.3 General setting options
Both the setting options and the procedure for setting the measuring device parameters differ
greatly between the blind version and the version with display. With the display version,
advanced setting and configuration options are available without requiring the push button on
the converter electronics. For this reason, the settings for the respective versions are each
described separately below.
5.4 Setting the blind device
To adjust the settings on the blind device you require access to the push button located on the
converter electronics.
5.4.1 Position correction
The measuring device is set to be installed vertically (cover opens up) when it leaves the factory.
Zero point shifts may occur when installing the pressure transmitter (e.g. slightly angular
installation site or through pressure sensors etc.). These shifts must be rectified.
5.4.2 Zero point and span start (4 mA)
Open the housing cover (for details refer to Opening the device, installing and dismantling the
graphic display on page 16). The pressure span start (4 mA) is provided either from the process
or from a pressure transducer. The pressure must be stable and extremely accurate (<< 0.15%).
Hold the push button (1) down with a blunt object and release within 0.5...2 seconds. The span
start set in this way is stored power failure proof.
INFORMATION!
Prior to starting with the correction, ensure that the pressure transmitter has already reached
its operating temperature (approx. 5 minutes operating time, where the pressure transmitter
has already reached the ambient temperature).
Figure 5-1: Zero point setting and position correction for devices without display
1 Push button
.book Page 24 Thursday, March 8, 2012 9:29 AM