VEGA VEGAMET 624 - Manual (Page 25)

25
6 Setup with the integrated display and adjustment unit
VEGAMET 624 • 4 … 20 mA/HART
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Carry out your settings via the appropriate keys and save with
[OK].
The signal conditioning instrument can be locked with a PIN to protect
the set parameters against unauthorized modification. After activa-
tion, it is not possible to carry out a parameter adjustment via the
built-in display and adjustment unit without entering the previously
specified PIN. This locking does not apply to parameter adjustment
with PACTware and the respective DTM.
With every 4 … 20 mA/HART sensor, the measured value can be
transmitted via analog current signal or digital HART signal. This is
regulated via the HART mode or the address. If a HART sensor is set
to address 0, the sensor is in the standard mode. Here the measured
value is transmitted digitally on the 4 … 20 mA cable.
In mode HART Multidrop, an address from 1 … 15 is assigned to the
sensor. By doing so, the current is fix limited to 4 mA and the meas-
ured value transmission is only made digitally.
First of all, enter the previous address of the sensor to be modified
(factory setting 0), then you can assign the requested HART address
in the range of 01 - 15 in the menu "New address".
With instrument versions with integrated RS232/Ethernet interface,
a manual data transmission to a WEB-VV server can be trigger, for
example, for test purposes. Requirement is that a WEB-VV event was
configured in advance via PACTware/DTM.
In the menu item "Info" the following information is available:
Service - PIN
Service - Sensor address
Service - Data transmis-
sion
Info