Emerson Rosemount 3812 Maintenance And Troubleshooting Manual page 29

Maintenance and Troubleshooting Manual
00809-0100-3812
Table 2-2: Maintenance
MeterLink utility
MeterLink Logs/ Reports Menu Meter performed a Warm start
MeterLink Tools → Edit/
Compare Configuration
Menu
MeterLink Logs/Reports Menu Power failure
Rosemount 3812 Liquid Ultrasonic Flow Meter
(continued)
Diagnostics
or a warm start is required
Meter performed a Cold Start
Troubleshooting
April 2022
Action(s)
• Meter performed a Warm Start:
— Collect an Archive event log (Audit log)
using MeterLink to view configuration
parameters changes and when they
changed.
• Warm start required:
— When you make changes to the
transducer characteristics, sample rates,
the device number, or a Modbus map
file.
• The meter configuration has reset to
default values and the meter is not
configured correctly to measure flow.
• Unless the cold start occurred after
upgrading firmware, you may need to
replace the CPU Module.
• If the Cold Start occurred after a firmware
upgrade, you must reconfigure the meter
from a previously saved configuration file
using the Edit/Compare Configuration
screen. Then clear the latched alarm on the
Status Summary page.
• If this was a known power fail or restart of
the meter just acknowledge this alarm on
the Status Summary page.
• If this was an unexpected restart of the
meter, verify the integrity of the power to
the meter and make sure that the voltage
level is in the range of 11-36 VDC at the
meter.
• Collect an Archive event log (Audit log)
using MeterLink.
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