Vega VEGAFLEX 80 series Safety Manual - page 14
14
7 Proof test
VEGAFLEX 80 series • Two-wire 4 … 20 mA/HART
42960-EN-170410
See Safety-related characteristics
7.3 Test 2: With check of the process variable
•
Instrument can remain in installed condition
•
Output signal corresponds to the assigned process variable
•
Device status in the menu Diagnosis: "OK"
Distance from the sensor reference point to the level
•
> 1000 mm with FX86.**4***A***** with reference distance
750 mm
•
> 750 mm with FX86.**4***A***** with reference distance 500 mm
•
> 500 mm with FX86.**4***A***** with reference distance 260 mm
•
> 300 mm with FX8*.******A***** without reference distance
1. Carry out a re-start (separate the test item at least 10 seconds
from mains voltage)
2. Press the menu item "Start proof test" in the menu Diagnosis on
the adjustment unit
3. Carry out the function test according to the operating instructions
just like during initial operation.
Step 1: Output signal corresponds to the assigned process variable
and the device status in the menu Diagnosis is "OK"
Step 2: Adjustment unit signals "Test successful"
Step 3: Successful function test
See Safety-related characteristics
Proof Test Coverage
Conditions
Procedure
Expected result
Proof Test Coverage