ABB CoreSense - Visual Indicators and Alarms

Configuring the sensor head 41
Visual indications and alarms
The sensor is equipped with LED indicators that allow you to evaluate at a glance the current state
of the sensor and to determine if hydrogen or moisture levels are in spec. These indicators are also
available remotely through the web interface.
Meanings of the visual indicators
—
Table 8 Meanings of visual indicators
System Hydrogen Moisture
SOLID GREEN
The sensor is powered up
and operating normally.
Both the hydrogen level
AND the hydrogen 24-
hour rate-of-change are
below the user-configured
WARNING threshold.
Both the moisture level AND
the moisture 24-hour rate-
of-change are below the
user-configured WARNING
threshold.
BLINKING YELLOW
(WARNING)
This indicator will remain
on while the CoreSense is
booting up. If the sensor
remains in warning mode
for more than three
minutes, the sensor
requires user attention, the
thermal pump is disabled or
it is being operated outside
its nominal specifications *
The hydrogen level OR the
hydrogen 24-hour rate-
of-change is above the
user-configured WARNING
threshold.
The moisture level OR the
moisture 24hour rate-
of-change is above the
user-configured WARNING
threshold.
BLINKING RED
(ALARM)
This indicates a sensor
fault. Please refer to the
event log and contact ABB.
The hydrogen level OR the
hydrogen 24-hour rate-
of-change is above the
user-configured ALARM
threshold.
The moisture level OR the
moisture 24 hour rate-
of-change is above the
user-configured ALARM
threshold.
OFF
Sensor is not powered. This sensor is not equipped
with a moisture sensor.
* This indicates that the sensor is booting up, requires attention or is operating outside its nominal specifications. This condition can be triggered
by an unacknowledged ALARM, oil temperature beyond 100 °C, etc. The event log should be used to determine the root cause of the WARNING.