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Samson 373 Series Operating Instructions

Samson 373 Series
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EB 8389 EN 101
Leakage sensor
compared to the alarm limits. Which mean
sound level is to be used for comparison can
be selected in 'Alarm release':
Average of current/last tight-closing:
The mean value calculated from the cur-
rent sound level and from the last four
sound levels measured while the valve is
tightly shut is used for monitoring
(Fig.18: Tight-closing event 31 and
sound level E to I).
Average of current/last tight-closing:
The mean value calculated from all
sound levels measured while the valve is
tightly shut is used for monitoring
(Fig.18:
Tight-closing event 31 and
sound level A to I).
Moving average short-term histogram:
The mean value calculated from the last
30 sound levels measured during short-
term monitoring (see section7.2) is used
for monitoring (Fig.18: Tight-closing
event 2 to Tight-closing event 31 with all
sound levels).
Moving average long-term histogram:
The mean value calculated from all the
sound levels measured during long-term
monitoring (see section7.3) is used for
monitoring (Fig.18: Tight-closing event 1
to Tight-closing event 31 with all sound
levels).
The 'No alarm release' setting deactivates
the alarm function.
Dening parameters
1. Dene alarm parameters.
2. Select classication for status messages
(see section7.1.2.3).
1.
Diagnosis > Leakage detection > Repetition
test
Alarm release: [No alarm release], Average
of current/last tight-closing,
Average level at
tight-closing,
Moving average short-term
histogram, Moving average long-term
histogram
Select alarm limits
1)
: [Factory setting
(reference test], Alarm limit of repetition test,
User-dened alarm limits
Types3730-2/-3/-4/-5 (1.5x) and Type3731-3:
2.
Settings > Positioner > Error control >
Classication report > Extended > Inner
leakage
Alarm limit 2 exceeded:
[
], , , ,
Alarm limit 3 exceeded:
[ ], , , ,
Type3730-5 (1.6x) and Type3731-5:
2.
Settings > Positioner > Diagnosis
conguration > Classication
Inner (seat) leakage: [
], , , ,
1)
On selecting the alarm limit 'User-
dened', we recommend checking the
correct setting of the alarm limits using an
operating time of one to three months
based on the measured data in 'Level'
diagram (see section7.4).

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Samson 373 Series Specifications

General IconGeneral
BrandSamson
Model373 Series
CategoryValve Positioners
LanguageEnglish

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