Troubleshooting The Level Transducer Block; Table 22: Level Transducer Block - Honeywell SLG 700 Option Manual

Troubleshooting the Level Transducer block

Problem cause
Transducer block
mode is in OOS and
does not change to
AUTO mode.
Transducer block
does not produce
valid Distance to
Level, Product Level
Page 180
Table 25: Level Transducer block
Things to check
Read
MODE_BLOCK.PERMITTED
Read MODE_BLOCK.
ACTUAL of Resource block.
Check the product Level
Range.
Check Field Diagnostics Status
bit of Characterization data and
Calibration data Corrupt and
Sensor Characterization Status
and Sensor Calibration Status
bits of Sensor Details Status
parameter of Diagnostic Block
Verify parameter:
Distance To Level and
Product Level Value status
are not GOOD
Check Sensor Configuration
FOUNDATION Fieldbus Option User's Guide
Recommended action
Add AUTO mode to
MODE_BLOCK.PERMITTED.
If necessary, Set
MODE_BLOCK.TARGET to
AUTO.
NOTE:
If the mode is set to OOS for
maintenance, then do not change
the mode to AUTO.
Ensure that Product Level Range
has valid ranges and units
assigned.
Change the Sensor housing.
Verify the Surface configuration of
the Correlation Algorithm
parameters and Sensor
parameters configuration
Ensure that Auxiliary Transducer
block is in AUTO mode.
Verify that correct Dielectric
constant, Sensor height, Maximum
Product Height, Probe Type,
Probe Length, Level Offset,
Blocking Distance High and Low
values are assigned.
Verify that correct Correlation
Algorithm Surface values are
assigned by reading Echo curve
again.
Rev. 3.0