Emerson Rosemount 5408 Reference Manual page 150
Level transmitters non-contacting radar
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- Reference manual (274 pages) ,
- Quick start manual (37 pages) ,
- Reference manual (226 pages)
Table of Contents
Safety Instrumented Systems (4-20 mA only)
Use Rosemount Radar Master Plus
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Prior to the test, ensure there are no alarms or warnings present in the transmitter.
a. Under Service Tools, select Alerts.
Bypass the process safety function and take appropriate action to avoid a false trip.
Simulate 4.00 mA output and verify loop current.
a. Under Service Tools, select Simulate.
b. Select Loop Test.
c. Select 4 mA and then select Start.
d. Measure loop current (e.g. reading the safety logic solver or using the TEST
terminal, see
Section
7.4.4).
Note
The inaccuracy of safety logic solver or current meter needs to be considered.
e. Verify the current deviation is within the safety deviation of 2% (±0.32 mA).
f. Select Stop to end loop test.
Simulate 20.00 mA output and verify loop current.
a. Under Service Tools, select Simulate.
b. Select Loop Test.
c. Select 20 mA and then select Start.
d. Measure loop current (e.g. reading the safety logic solver or using the TEST
terminal, see
Section
7.4.4).
e. Verify the current deviation is within the safety deviation of 2% (±0.32 mA).
Note
The inaccuracy of safety logic solver or current meter needs to be considered.
f. Select Stop to end loop test.
Perform a one-point level measurement verification of the transmitter in the
measuring range. Compare with independent measurement (e.g. the BPCS level
sensor).
a. Under Overview, select All Variables.
b. Verify the current level or distance reading with an independent measurement is
within the safety deviation of 2%.
Note
The inaccuracy of the independent measurement needs to be considered.
Remove the bypass and otherwise restore normal operation.
Reference Manual
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Troubleshooting
