SWT4 User Manual v3.1
Introduction
9
Note for SWT4R Tensiometers:
Pay attention to the engraved black spot on the shaft’s top end that
marks the position of the exit opening of the external filling inside
the cup:
a)
Downwards
installation: If the position of the cup will be lower than
the end of the shaft, the black mark must exactly face up! The optimal
installation angle is between 25° and 65°.
b)
Upwards
installation: If the position of the cup will be higher than the
end of the shaft, the black mark must exactly face down! The optimal
installation angle is about 5°.
Fig. 1a) Downwards installation Fig. 1b) Upwards installation
5. Push down the
shaft water retaining disk
to a position directly on
the soil surface.
6. For SWT4R: Slide a
thermal insulation tube
over the capillary
filling tubes.
7. If the plug is not connected right away leave the
protective cover
on the plug. Dirt will influence the impermeability and water tightness is
only assured when the plug is kept clean.
8.
Connect
the Tensiometer signal wires to either a data logger or the
SWT-MR/Infield7
See also:
“Wiring Configuration” on page 42
GP1-PGA1 Quick Start Guide
(for GP1 Logger users)
LS2Win Software
online
help
(for DL2e Logger users).
