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A Note on Securing Cables
To prevent fraying or cutting of cables, secure them so they will not whip in the wind. Secure
a cable to a metal pole by wrapping electrical tape around it or using the supplied cable ties.
Make sure cables are secure by placing clips or ties approximately every 3 – 5' (1 – 1.6 m).
Note:
Do not use metal staples or a staple gun to secure cables. Metal staples—especially when
installed with a staple gun—have a tendency to cut the cables.
Maintaining Your Temperature/Humidity Sensor and
24- Hour Fan-Aspirated Radiation Shield
The cross-section diagram shows how the
24-Hour Fan-Aspirated Radiation Shield draws
outside air up through the sensor chamber and
between the three walls surrounding the sensor
chamber, while the shield stack prevents
radiation heating of the outer wall.
Check the radiation shield for debris or insect
nests several times a year and thoroughly clean
as often as necessary. A buildup of material
inside the shield reduces its effectiveness and
may cause inaccurate temperature and humidity
readings.
To clean it, disassemble the shield and clean
interior surfaces of the shield and the Temperature Humidity Sensor as necessary to
prevent dirt build up.
Check to make sure the fan is running by listening for it, or by holding a piece of tissue
paper under the shield. See "Specifications" on page 9.
See "Replacing the Fan Motor and Batteries" on page 8.
Clean the surfaces of the shield plates periodically with a damp cloth.
CAUTION: DO NOT remove nesting insects or animals by spraying insect killer of any kind
into the radiation shield. Chemicals could easily damage the circuitry inside your
temperature/humidity sensor.
Note:
Spraying down or using water excessively to clean the radiation shield can damage
the sensitive sensors or alter the data and readings the ISS is transmitting.
4
Cable Clip
Cable Tie
MOTOR
FAN
SENSOR
CHAMBER
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