envea STACK 602, Руководство пользователя

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STACK 602 9 Maintenance
ENVEA UK Ltd
(PC-000848-MA Issue 5, December 2021)
vii
Sensor Status
The below table details the status of various functions according to sensor status.
Function
Sensor Status
ENABLED MAINT DISABLED
Emission Alarms
(control unit relays)
Active Inactive Inactive
Comms and Self-test Alarms
Active Active Inactive
4-20mA Active Set to 0 Set to 0
Logging
Active
Active
(labelled
MAINT)
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Inactive
Alarm Log ---
Maintenance
alarm
---
9.3 Service Messages
The control unit generates service messages at various points in the life of the
sensors to ensure the sensors are correctly maintained. Three types of Service
messages are created whose purpose is outlined in the table below.
Message
Time after
installation
Action required
Inspection due
6 months
Remove the sensor from the stack for
inspection and cleaning.
Service due
12 months
Arrange service visit by an ENVEA Service
Engineer or an authorised ENVEA
representative.
Major Service
due
4 years
Recommended return to ENVEA for testing
and refurbishment if required.
Messages advising inspection are displayed one month prior to the due date. If
messages are not cleared within a month, ‘Overdue’ messages will occur, and the
control unit LED will flash RED.
Clearing Service Messages
All active service messages can be cleared by entering Maintenance mode (see
page
49
), performing the required actions, and then returning the sensor to
normal operation.
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This data is only available in PC-ME DUST TOOLS and may be excluded from reports.