The serial number allows you to access the delivery data of the
instrument via
www.vega.com, "VEGA Tools" and "serial number
search".
3.2 Principle of operation
VEGAMET 391 is a universal signal conditioning instrument for a
number of applications such as level, gauge and process pressure
measurement. At the same time, it can serve as power supply unit for
connected sensors. VEGAMET 391 is designed for connection of any
4 … 20 mA/HART sensor.
On instruments with one of the optional interfaces (RS232/Ethernet),
the measured values can be retrieved via modem or network and
displayed by means of a web browser or WEB-VV. It is also possible to
send measured values and messages via e-mail/SMS. The use of
VEGAMET 391 is particularly suitable for stocktaking, VMI (Vendor
Managed Inventory) and remote enquiry.
The VEGAMET 391 signal conditioning instrument can power the
connected sensor and process its measurement signals. The
requested parameter is shown on the display and also outputted to the
integrated current output for further processing. The measurement
signal can thus be transferred to a remote indication or a superordinate
control system. Six level relays for control of pumps or other devices
are also integrated.
Wide-range power supply unit with 20 … 253 V AC/DC for world-wide
use.
Detailed information about the power supply can be found in chapter
"Technical data".
3.3 Operation
The instrument can be adjusted with the following adjustment media:
l With integrated indicating and adjustment unit
l an adjustment software according to FDT/DTM standard, e.g.
PACTware and a Windows PC
The entered parameters are generally saved in VEGAMET 391, when
used with PACTware and PC optionally also on the PC .
Information:
When using PA CTware and the respective DTM, additional settings
can be carried out which are not possible or only partly possible with
the integrated indicating and adjustment unit. Communication is
carried out via the integrated USB interface or one of the optional
interfaces (RS232/Ethernet).
Application area
Functional principle
Power supply
8 VEGAMET 391 • 4 … 20 mA/HART signal conditioning instrument
3 Product description
36032-EN-091116
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