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Installation
5.2.4
Installation of VISY-Stick Flex
Please note that the flexible and therefore fragile nature of the VISY-Stick Flex sen-
sor makes it more prone to mechanical shock. The sensor must not be unpacked
until it has been brought to its place of installation.
The corrugated hose must not be bent more than it already is in the packaging and
must not be pulled apart in axial direction.
Installation must be carried out by at least two persons, one of whom unrolls the
corrugated hose while the other feeds the corrugated hose into the tank.
For sensor installation, the tank coupling provided for assembly must have an internal thread
of 1½". The sensor is supplied in a special transport box. The float and the weight are ready
assembled. Before installation, prepare a spanner (AF 55) and some sealing material for the
screw-in unit, a hexagon key (5 mm), a spanner (AF 30) for the stuffing box, and a measuring
instrument.
(1)
Remove the sensor from the packaging
(2)
If there is deformation or kinking at the transition between probe tube and corrugated
hose, this must be straightened out with extreme care
(3)
Loosen the hexagon-socket screw and stuffing box, slide the screw-in unit towards the
probe head and secure, then seal in the thread of the screw-in unit
(4)
Slide the float onto the weight at the lower end of the probe
(5)
Feed the lower end of the probe (magnetic base) into the tank
(6)
Unroll the corrugated hose, taking care to avoid chafing on the tank coupling, until the
top end of the corrugated hose reaches the tank coupling
(7)
Then lower the sensor slowly until you feel the magnetic force of the magnetic base
take hold on the tank bottom (steel tanks only)
(8)
In this position, measure the clearance from the lower edge of the probe head to the
tank lid (
installation dimension
) and note it down
(9)
Lower the probe head slightly, slide the screw-in unit towards the tank coupling and
tighten
(10)
Raise the probe head until the exact
installation dimension
that you measured before.
Attention
: do not raise it any higher, otherwise the sensor will become detached from
the tank bottom
(11)
Tighten the stuffing box and secure using the hexagon-socket screw
(12)
Then connect the M12 coupler of the supplied FAFNIR connection cable to the sensor
and connect the cable to the VISY-Command (optionally to the transmitter VISY-RFT of
the radio version)
(13)
Configure VISY-Command using the VISY-Setup software, set the water alarm to a value
higher than 150 mm and as Offset 114 mm
(14)
Compare the displayed filling level with the actual filling level, if known (plausibility
check)
