Viewing Measurement History - Emerson Rosemount 3308A Reference Manual

Service and Troubleshooting
August 2017
Figure 6-7. Echo Curve Plot Indicating that the Interface Threshold for the Interface Peak Is Too
A. Surface Threshold
B. Product Surface Peak
C. The Interface Threshold is above the Interface Peak.
By adjusting Interface Threshold, the peak at the interface between the upper and lower products is
detected as illustrated in
Figure 6-8. After Changing the Interface Threshold the Transmitter Detects the Interface
A. Surface Threshold
B. After Interface Threshold is adjusted the interface is correctly detected.
6.4.3

Viewing measurement history

The Measurement History tool presents historical values and related device status that are stored in the
transmitter memory. The tool is useful for verifying that the transmitter works properly or to diagnose
any issues during a specific time interval.
1. Select Service Tools > Maintenance > Routine Maintenance.
2. Select Measurement History and follow the on-screen instructions.
98
PRELIMINARY
High
B
A
DISTANCE
Figure 6-8.
A
DISTANCE
C
B
Reference Manual
00809-0100-4308, Rev CA
Service and Troubleshooting