Emerson Rosemount 5408, Справочное руководство

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Tools required
• HART host/communicator or Rosemount Radar Master Plus
• Current meter
• Safety logic solver
• Independent measuring device (e.g. BPCS level sensor, measuring tape)
8.8.2 Perform 1-point level and analog output verification
Prerequisites
WARNING
During the proof-test, the transmitter will not output measurement values corresponding
to the product surface level. Ensure systems and people relying on measurement values
from the transmitter are made aware of the changed conditions. Failure to do so could
result in death, serious injury and/or property damage.
8.8.2 Use Rosemount Radar Master Plus
Procedure
1. Prior to the test, ensure there are no alarms or warnings present in the transmitter.
a) Under Service Tools , select Alerts .
2. Bypass the process safety function and take appropriate action to avoid a false trip.
3. 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 Use the TEST terminal ).
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.
4. 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
.
Safety Instrumented Systems (SIS) requirements Reference Manual
February 2020 00809-0100-4408
156 Reference Manual