Temperature/RH Smart Sensor (S-THC-M00x) Manual
1-508-759-9500 (U.S. and International)
1-800-LOGGERS (564-4377) (U.S. only)
www.onsetcomp.com/support/contact
© 2021 Onset Computer Corporation. All rights reserved. Onset and HOBO are trademarks or registered
trademarks of Onset Computer Corporation. All other trademarks are the property of their respective
companies.
25929-A
Connecting the Sensor to a Station or Logger
To connect the sensor to a station or logger, stop the station or
logger from logging and insert the smart sensor’s modular jack
into an available smart sensor port. See the station manual for
details on operating stations or loggers with smart sensors.
Mounting
Use a solar radiation shield to mount the sensor. Use the cable
clamps included with the RS3-B radiation shield to secure the
smart sensor as shown.
Temp/RH Sensor mounted in
Solar Radiation Shield RS3-B (cross-section)
Mounting Considerations
•
A solar radiation shield is strongly recommended when
measuring air temperature in direct sunlight. Solar
radiation can be a significant source of error in the
temperature and RH readings.
•
When deploying an S-THC sensor, it is recommended that
you mount the sensor vertically. If it must be mounted
horizontally, then make sure the vent on the side of the
sensor is vertical or facing down.
•
Thermally isolate the sensor from the mounting surface to
ensure accurate air temperature and humidity readings.
•
Protect the sensor from direct exposure to the weather.
This will prolong the sensor accuracy.
•
Secure the smart sensor adapter to the mast with the
cable ties as shown. Multiple smart sensor adapters can
be stacked as shown in the example below on the right.
•
Alternatively, mount the smart sensor adapter to a flat
surface using two screws (no larger than a #6) and two
washers as shown.
•
If you are running sensor cables along the ground, use
conduit to protect against animals, lawn mowers,
exposure to chemicals, etc.
•
Refer to the station manual and Tripod Setup Guide at
www.onsetcomp.com/support/manuals for more
information regarding setting up stations.
Maintenance
The temperature/RH smart sensor is sensitive to dust, salts and
other airborne contamination. Periodically inspect the sensor
probe and rinse it with distilled water to clean it. Do not use hot
water, organic solvents, or detergents. Dry before use.
One Smart Sensor
Adapter Mounted
Smart sensor
adapter secured
with cable ties
Two Smart Sensor Adapters
Stacked and Mounted