Samson 373 Series Operating Instructions

EB 8389 EN 99
Leakage sensor
Phase 3: The valve moves to the user-dened
points valid for phase 1 one after the other.
This is plotted in a sound level vs. travel
graph. The graph shows where the point of
activation is and to which value the 'Activa-
tion level' must be reduced to allow the test
to be completed successfully.
Dening parameters
1. Switch to manual mode.
2. Dene parameters for repetition test. See
Note concerning changing measured
points.
3. Start repetition test.
The start of the repetition test is docu-
mented in the Time stamp.
'd9' and 'tEST' are indicated in alternat-
ing sequence on the positioner display.
1.
Operation > Operating mode
1)
− Target mode (Code 0): Manual
2.
Diagnosis > Leakage detection > Reference
test
− Settling time before level measuring:
1 to 255s, [5s]
Diagnosis > Leakage detection > Repetition
test
− Activation level: 3 to 255dB, [10dB]
− Measured point change: 0.00 to 100.00%
[1: 0.00 %; 2: 0.10 %; 3: 0.20 %; 4: 0.03%;
5: 0.04 %; 6: 0.05 %; 7: 0.06 %; 8: 0.07%;
9: 0.08 %; 10: 0.09 %, 11: 1.00%]
3. − Start repetition test
2)
Type 3730-5: Operation > Operating mode
> Positioner (AO, TRD)
Cancel the repetition test by right-clicking
'Stop test' and selecting 'Execute' or by
pressing the rotary pushbutton at the posi-
tioner ('Test status' = Test cancelled manual-
ly). After the repetion test has been canceled,
the positioner remains in manual mode.
In TROVIS-VIEW the test status and progress
ag of the repetition test are displayed.
When the repetition test has been successful-
ly completed, the 'Test status' reading indi-
cates 'Test completed successfully'.
Note concerning changing measured points
− The adjusted measured points must
steadily increase from 'Measured point
1' to 'Measured point 11'.
− The valve moves to the user-dened
points in steps of 0.1%. Measuring
points must be rounded up to two deci-
mal places.
− User-dened points can be saved for
other functions (e.g. for another repeti-
tion test) in a le.
Note

Samson 373 Series Specifications

General

Brand	Samson
Model	373 Series
Category	Valve Positioners
Language	English