COSA Xentaur Xentaur LPDT - Manual (Page 10)

Section 2: Sensor and Sampling Techniques
page 3
2.1 Precautions using the sensor
The Xentaur HTF™ Al
2
O
3
sensor is designed and field
proven to be highly reliable, rugged and maintenance free.
However the user should consider the following precau-
tions:
•
To avoid the need for prolonged dry-down (when
expecting to measure dewpoints dryer than -65ºC), do
not expose the sensor to room air longer than necessary
(1 - 2 minutes). Thus, do not open the sensor container
before you are ready to install the sensor.
• The sensor container has desiccant to keep the sensor
dry during shipping and to avoid damage due to conden-
sation. Close the container immediately after removing
the sensor to avoid degradation of the desiccant.
• Do not throw away the sensor container, you may use it
again to transport the sensor between locations, to store
it between uses or to ship it back to the factory for certi-
fication. The container can be attached to the loop cable,
by trapping the cable with the lid strap.
• Do not expose the sensor to corrosive gases such as
gases containing chlorine, ammonia or HCl. (SO2 can
be monitored when the moisture content is low).
• Except for the XTR65W sensor:
1. Do not expose the sensor to liquid water, as it may get
damaged.
2. Do not breathe directly onto the sensor, as condensa-
tion may form which could damage the sensor element.
• Do not install the sensor near heat sources such as radia-
tors or air ducts.
• Do not install the sensor in places subject to extreme
mechanical vibration or shock. If this is not avoidable,
use resilient mounting. If in doubt, call your representa-