DeFelsko SST PosiTector Guia Rápido página 6

a b c
( ) ( ) ( )
d) Inject half of the water into the patch. Then, use the syringe
to withdraw trapped air.
e) Remove the needle, point it upwards and expel the air.
f) Re-insert the needle and inject the remaining water into the patch.
Step [ 3 ] : Begin Test (applies to both patch styles)
a) Once the water is injected into either patch,
press the ( + ) button to start the test timer.
T I P :
After starting the test timer, the operator can select Power Off
from the Gage menu to conserve battery life. The test timer will
continue to run and the elapsed test time will be displayed when
the Gage is powered-up.
b) Without removing the needle/dispensing tip from the patch,
use the syringe to repeatedly withdraw and inject the water. ISO
8502-6 recommends this process be completed at least four
times and that the test time be agreed between interested parties.
c) After the desired amount of time has elapsed, withdraw the
solution from the patch.
d) To complete the measurement, completely fill the PosiTector
SST probe's test cell with the solution from the patch. Wait until
the measurement stabilizes(up to 5 seconds), then press the ( + )
button to save the temperature (T 2 ) and conductivity ( γ 2 ) of the
solution. ∆γ , the difference between the γ 2 soluble salt reading
and the γ 1 background reading, is displayed.
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