Cyclone User Manual
61
Safe Mode
In certain circumstances, the DEC User Interface may display the message SAFE
MODE. This can happen if the Humidity sensor stops reporting, or reports an
extreme value, indicating the probability of a sensor error. This situation may
arise either because of a faulty sensor* or in conditions of extremely high
absolute humidity.
In SAFE MODE, the normal Goldilocks operation is temporarily suspended, and
the enclosure works to return the internal environment to a condition from which normal operation may be resumed.
SAFE MODE is SAFE! It indicates that attention may be needed, but not that your equipment is at risk.
* Some sensors shipped before mid-2017 have had a limited operational life in harsher
conditions. Tempest has since developed a new class of capacitive sensor that is far more
resilient, especially in demanding conditions.
The new class of sensors (MG Type) have either:
a)
A piece of green tape on the sensor cable
And/or
b)
TEMPEST logo on the plastic sensor case
Safe Mode
–
What to do:
If you see SAFE MODE on your User Interface Display:
1.
Check the temperature/humidity sensor:
a.
If it does NOT have either a Tempest logo or a piece of green tape on
the cable, contact Tempest for a free-of-charge replacement. If you
have more than one enclosure, we suggest replacing the sensors on ALL
your enclosures.
2.
If the sensor has either a Tempest logo or a piece of green tape on the cable,
then:
✓
✓
✓
