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Table E-1: Device Variables
(continued)
Index
Device variable
Description
Default mapping (user
configurable)
12
Signal Quality
The quality of product surface echo signal
compared to surface threshold and noise.
13
Surface/Noise Margin
Margin between product surface echo
signal and noise. Zero indicates a low
margin and 10 a high margin.
(1)
Requires option code DA1 (HART Diagnostics).
Table E-2: Failure Alerts (F:)
Message
Additional status
Description
Electronics Failure
Byte 8::Bit 6
An electronics error that could impact the
device measurement reading has occurred.
Radio Failure
Byte 1::Bit 6
The wireless radio has detected a failure or
stopped communicating.
Supply Voltage Failure
Byte 6::Bit 2
The supply voltage is too low and will affect
device operation.
Probe Disconnected
Byte 4::Bit 6
The device cannot detect the probe.
Electronics Temperature Critical
Byte 1::Bit 3
The internal temperature of the device has
reached critical levels and the integrity of the
device electronics may be compromised.
Environmental temperature should not
exceed device specifications.
Configuration Error
Byte 2::Bit 6
The device has detected a configuration
error. Reasons may be multiple. See
for a list of detailed Configuration Errors that
may be displayed.
(1)
Location of the Alert in the HART command 48 Additional Status field.
Table E-3: Maintenance Alerts (M:)
Message
Additional status
Description
Supply Voltage Low
Byte 8::Bit 4
The supply voltage is low and may affect
Device Operation.
Electronics Temperature Out of Limits
Byte 1::Bit 2
The temperature of the electronics board has
exceeded the transmitter’s operating range.
Level Measurement Lost
Byte 3::Bit 1
No valid Level reading. Reasons may be
multiple:
•
No valid surface echo peak in the
measuring range.
•
Incorrect transmitter configuration.
Simulation Active
Byte 8::Bit 0
The device is in simulation mode and is not
reporting actual information.
Alert message mapping
Reference Manual
February 2020
00809-0100-4308
224
Rosemount 3308 Series
Summary of Contents for Rosemount 3308A
Page 8: ...Contents Reference Manual February 2020 00809 0100 4308 viii Rosemount 3308 Series ...
Page 10: ...Introduction Reference Manual February 2020 00809 0100 4308 10 Rosemount 3308 Series ...
Page 22: ...Transmitter overview Reference Manual February 2020 00809 0100 4308 22 Rosemount 3308 Series ...
Page 74: ...Installation Reference Manual February 2020 00809 0100 4308 74 Rosemount 3308 Series ...
Page 96: ...Configuration Reference Manual February 2020 00809 0100 4308 96 Rosemount 3308 Series ...