VEGA VEGAMET 391 4 … 20 mA_HART - Manual (Page 8)

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3 Product description
VEGAMET 391 • 4 … 20 mA/HART
36032-EN-130701
3.2 Principle of operation
VEGAMET 391 is a universal signal conditioning instrument for a
variety 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 re-
quested 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 superordi-
nate control system. Operating 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 Adjustment
The instrument can be adjusted with the following adjustment media:
•
With integrated display and adjustment unit
•
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 also optionally in the PC.
Information:
When using PACTware and the respective DTM, additional settings
can be carried out which are not possible or only partly possible with
the integrated display and adjustment unit. Communication is carried
out via the integrated USB interface or one of the optional interfaces
(RS232/Ethernet).
Further instructions for setting up the web server and e-mail functions
can be found in the online help of PACTware or the VEGAMET 391
DTMs as well as the operating instructions manual "RS232/Ethernet
connection".
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
Application area
Functional principle
Voltage supply
Packaging