ThermoWorks TR-73U 2 CHANNEL LOGGERS WITH USB - Manual (Page 29)

20
Connecting the Sensors
Connect the Sensor
*To avoid poor connections, be sure to push the sensor connector securely into the jack.
NOTE:
If a sensor extension cable is being used with the data logger connected by USB to your computer,
electromagnetic waves may cause large errors in measurements.
Handling the temperature/humidity sensor
- The temperature/humidity sensor should probably be changed after a period of about
one year.
After removing the sensor from its package, please change the temperature/humidity
sensor after one year
ȧs usage.
During use, the temperature/humidity sensor will accumulate impurities (dirt) on the
surface of the sensor causing the sensor's accuracy and sensitivity to decrease.
If the sensor is being used in a bad environment (smoky or dusty places) it may be
necessary to change the sensor sooner.
- When the temperature/humidity sensor is not being used, please place it in the
attached vinyl bag with the drying agent included and store it in a cool dark place with
a temperature of between 5 to 25
Ɏ and a humidity of below 30%RH.
- Attached to the temperature/humidity sensor are two stickers: a wetness detection
sticker and a temperature detection sticker.
If either of the stickers shows abnormality, you should change the old sensor to a new
one immediately.
Wetness Detection
Sticker
Temperature
Detection Sticker
ɜ Wetness Detection Sticker
Informs you that the sensor has been wet.
Normal Abnormal
Under normal conditions,
black dots will appear on a
white background.
Under abnormal conditions, the
background will turn to red.
ɜ Temperature Detection Sticker
Informs you that the sensor measured a temperature measurement over 60 Ɏ .
Normal Abnormal
60
Under normal conditions, the
number [60] will lightly appear
on a white (pink) background.
60
Under abnormal conditions, the
number 60 will clearly appear on a
red background.