COMEM eDOC Manual De Instrucciones página 12

If the device must be removed:
5. Close the transformer valve
6. Discharge the oil through the oil discharge valve
7. At this point the device can be removed
Product configuration and allarm setting can be done through
web interface, see the document: "eDOC web interface" Manual
instruction.
Visual indications and alarms
The eDOC is equipped with a segment display to read
the Hydrogen ppm and RH% and several LEDs icons that
allow you to evaluate at a glance the current state of the
product and to determine if hydrogen or moisture levels
are in spec. These indicators are also available remotely
through the web interface (see the document: "eDOC web
interface" Manual Instruction).
Icons Status
Blue fixed
Yellow blinking
Yellow fix
Segment
display to show
continuously
hydrogen and
moisture value
Green blinking
Red blinking
12
NOTE
Meaning Relay
USB key inserted No
eDevices or third part Relay 1 -
devices overcame Malfunctions
warning threshold
eDevices or third part Relay 1 -
devices overcame alarm Malfunctions
threshold
Hydrogen ppm value
No
Moisture RH% value
Idle, the sensor is
powered up and No
operating normally
Relay 1 -
Electronic board failure
Malfunctions
Icons Status
Red blinking
Red fix
Yellow blinking
H
2
Yellow fixed
Red blinking
Yellow blinking
Yellow fixed
Red blinking
In case of WARNING or ALARM
Your company may already have a standard policy in place
for dealing with hydrogen or moisture alarms.
In addition to this, for a WARNING, COMEM recommends
scheduling an off-line DGA to confirm the readings and
obtain the levels of other dissolved gases.
For an ALARM, COMEM recommends performing an
off-line DGA as soon as possible. Based on the result of
the off-line DGA, a diagnosis and maintenance recom-
mendation can be formulated (contact COMEM service,
customerservice@it.comem.com)
Post-installation check list
• Make sure that the system date was set properly using
the eDOC web interface.
• Make sure that the thermal pump is enabled (see
"Commissioning chapter" on page 11).
• Make sure that the hydrogen and moisture WARNING
and ALARM limits have been configured properly for
your application.
• Perform a visual inspection of the installation. Check for
oil leaks.
• Verify that cable glands are properly tightened and
secured.
• Make sure that the eDOC is appropriately grounded.
• Was PTFE applied on the 1.5 NPT fitting, as per
"Preparing for installation" chapter on page 8
OIL DIAGNOSTIC DEVICE TYPE EDOC
Meaning Relay
Thermal pump
not activated
No
(Commissioning is not
done)
Thermal pump does Relay 1 -
not work Malfunctions
The hydrogen level OR
the hydrogen 24-hours
Relay 2 -
rate-of-change is above
Warning
the user-configured
WARNING threshold.
The hydrogen level OR
the hydrogen 24-hour
Relay 3 -
rate-of-change is above
Alarm
the user-configured
ALARM threshold.
Hydrogen sensor does Relay 1 -
not work Malfunctions
The moisture level OR
the moisture 24hours
Relay 2 -
rate-of-change is above
Warning
the user-configured
WARNING threshold.
The moisture level OR
the moisture 24 hours
Relay 3 -
rate-of-change is above
Alarm
the user-configured
ALARM threshold.
Moisture sensor does Relay 1 -
not work Malfunctions