VEGA VEGABAR 40 HART - Manual (Page 39)

VEGABAR 40 (HART ® ) 39
Instrument modification
6.2 Exchange of electronics
You first have to remove the adjustment mod-
ule as described in chapter "6.1 Exchange of
adjustment modules“ to exchange the com-
plete electronic unit of VEGABAR.
• Then loosen the ground screw and the two
smaller fixing screws connecting the elec-
tronic unit with the housing.
• Pull the electronic unit to the top and pull
out the plug connection.
• Proceed in reverse sequence when install-
ing the new electronic unit.
Note:
Now new adjustment is necessary after
exchanging the electronic unit. When switch-
ing on (connection of supply voltage) for the
first time after exchange of the electronic unit,
it will take approx. 20 s until the actual meas-
ured value is displayed.
Ground
screw
Fixing screw
Fixing screw
Plug
connection
6.3 Exchange of the process fitting
The process fitting on VEGABAR 40 can be
easily exchanged.
• First loosen the three screws on the lower
side of the housing with a hexagon socket
size 5.
• Remove the process fitting in the direction
of the arrows from the sensor so that the
connection cable is not damaged.
• Pull out the plug connection.
For mounting the other process fitting, pro-
ceed in reverse sequence:
• Insert the cable from the sensor into the
process fitting.
• Plug the process fitting and the sensor
together.
• Screw the process fitting to the sensor,
only use the original screws and plain
washers.
Note:
When switching on (connection of supply
voltage) for the first time after exchanging of
the electronic unit, it will take approx. 20 s
until the actual measured value is displayed.
Plug connection
Hexagon head
screws