Onset Computer Corporation
HOBO U14
16
User’s Guide
Memory Display States
State
MEM LEFT Hash marks Segments
Illustration
Stopped On
None
Launched/Logging
On
Number of segments depends on memory
remaining. Highest segment flashes.
Launch Delaying
Flashing
All On/Flashing
Memory Full
Flashing (until data is downloaded)
All Off
External Sensor Indicators
External Sensor Removed
If an external sensor is disconnected from the logger, the logger will record values of -888.88°C/-888.88 °F for temperature and 0% RH.
No External Sensor
If the U14-002 logger is launched and no external sensor has been connected, the display will show dashes
“---” and will log false values (-888.88°C/-888.88°F for temperature and -888.9% for RH).
Temp Only Sensor Installed
If a temperature-only sensor is connected, no RH value will be displayed.
No RH Sensor Installed but Channel Active
A display of --% RH indicates that the humidity channel is active in the software and should be turned off
to maximize memory space. Otherwise, the unit will record a -888.9% RH value at every logging interval
