envea VIEW 370, Руководство пользователя

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8 Maintenance VIEW 370/373
34
(PC-000855-MA Issue 6, December 2021)
ENVEA UK Ltd
Response’ alarm will be generated in the Control Unit for that channel during
the maintenance period.
• Maintenance mode menu in the control unit : Sensors placed in
Maintenance mode will be re-enabled automatically after 8 hours.
NOTE
Switching to Maintenance mode prepares the system for manual
intervention by forcing the 4-20mA output to 4mA, removing any
alarm levels, and tagging internal data logs on the control unit (to
enable further actions within PC-ME DUST TOOLS).
8.2.1 Placing a Sensor in Maintenance Mode
There are two ways to activate Maintenance mode: via the QA menu for a specific
device or via Other Functions for all devices or a sensor selected from a list of
devices.
For a specific Sensor/Device
1. Select QA/Self Tests to display this screen (see
F
IGURE
13
on page 30).
2. Select the required channel from the Device drop-down list.
3. Press the Start Maint button and when prompted, select YES to place the
sensor in Maintenance mode. (The button toggles to ‘Stop Maint’.)
4. When servicing is complete, click the Stop Maint button and when
prompted, select YES to return the system to normal operation.
For all Sensors/Devices in a Network
1. Select Setup | Other Functions to display this screen (
F
IGURE
14
).
2. Select Start Maintenance (All Devices) to put all sensors into Maintenance
mode.
3. When servicing is complete, select Stop Maintenance (All Devices) .
Figure 14: Maintenance Mode screen.
For an Individual Sensor/Device
1. To place individual sensors in Maintenance Mode: select Individual Device
Maintenance to display the sensor status screen (
F
IGURE
15
).