OTT ecoLog 500, Руководство по эксплуатации

Страница: 44 / 56

18.2 Replacing the desiccant capsules
Recommended interval: Depending on the level of air humidity at the station,
every 12 to 24 months and when replacing the batteries.
There is a humidity indicator on the desiccant capsule.
When this indicator changes its color from blue to pink
the desiccant capsule has to be replaced, irrespective of
the time elapsed.
Quantity: 2 (1x pressure compensation capillary, 1x communica-
tion unit).
Notes
Store the desiccant capsule only in its original packaging.
Use only desiccant capsules that are fitted with a blue humidity indicator.
How to replace the desiccant capsules
A) Desiccant capsule for pressure compensation capillary
Open the top cap/observation well cover.
Pull and hold the communication unit approximately 1 m out of the observation
well (a second person would be useful).
Remove the screw fitting from the communication unit.
Slide the cap and pipe casing of the communication unit approx. 50 cm
towards the pressure probe cable. (The rubber stop located on the pressure
probe cable (refer to Fig. 2) prevents the pipe casing from falling.)
Pull the desiccant capsule container of the pressure compensation capillary
from the holder, as shown in Fig. 28.
Remove the cap of the container by rotating it counter-clockwise.
Remove the exhausted desiccant capsule.
Install new desiccant capsule. Labeling must face towards pressure compen -
sation capillary.
Install the cap by rotating it clockwise.
Reinsert the container into the holder.
Container for
desiccant capsule
Pressure compensation capillary
desiccant capsule Cap
Pressure compensation capillary
Fig. 28: Replacing the pressure
probe desiccant capsule.
44