Emerson Rosemount 3308 Series Reference Manual page 112

Service and troubleshooting
February 2020
Table 6-4: Maintenance Alerts (M:)
Message
Interface Measurement Lost
Low Signal Quality
Capacity Denied
PV Out of Limits
112
(continued)
Description
No valid Interface reading. Reasons
may be multiple:
• No valid surface echo peak in the
measuring range.
• Incorrect transmitter
configuration.
The Signal Quality is below the defined
alert limit.
The device has failed to acquire the
wireless communication bandwidth
necessary to support the configured
update rates.
The primary measurement is outside
the sensor limits and may be
unreliable.
Reference Manual
00809-0100-4308
Recommended actions
1. Analyze the Echo Curve for
reason and check device
configuration, especially
thresholds, false echoes, Near
Zone, Maximum Level Rate and
settings on the Lost
Measurement tab in the Alert
Setup.
2. Check device physical installation
(for instance probe
contamination).
3. Restart measurement.
4. Restore the default settings and
reconfigure device.
5. If the condition persists, replace
the device.
1. Take action based on your
intended use of this alert.
2. Clean the probe.
3. If no actions were necessary,
consider to change the limit.
1. Obtaining the bandwidth may
take some time depending on the
configured update rates and
other devices in the network.
Wait several minutes to see if the
error resolves itself.
2. There may be too many devices
attached to the WirelessHART
network, or the update rates may
be too fast. Try using a different
network, or slowing down the
update rate on one or more
devices.
1. Bring the system to a safe state.
2. Verify that the primary
measurement is within specified
limits.
3. Restart the device.
4. If the condition persists, replace
the device.
Rosemount 3308 Series
®