Specific Notes - UMS T5 User Manual

Introduction
1.6.5

Specific notes


T5 and T5x are not suitable for dry soils and they are not frost
resistant.

When installed in the field provide sufficient protection.

The less air is inside the cup and the better the soil's conductivity
is, the faster the Tensiometer will respond to tension changes.

It does not make sense to refill a Tensiometer as long as the soil
is dryer than -90 kPa (T5) or - 160 kPa (T5x).

Using a quartz clay slurry is only recommendable in clayey soils
and only if the drilled diameter is larger than the shaft diameter
(5 mm). In coarse sand or gravel soil a fine grained slurry paste
would act as a water reservoir which would lead to a slower
response.

The T5 can be installed in any position and orientation. Bubbles
are easily detectable through the transparent shaft.

Output signals are standardized.
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