37
APPENDIX E. Adjustment profiles
Tables E.1-E.4 contain standard values of the parameters included
in the factory-installed adjustment profiles.
Table E.1. Profile1 (for AS-40X-XX0, AS-50X-XX0)
Parameter
Type of
ultrasound
velocity
correction*
Dead
zone, m
Correlation
threshold
Number of
cycles in a
sounding
pulse
Search
criterion
Representation
on the display
Type of
correction
Ddz Smin
Np
Search by
Value
ref.
1.000
10
20
max (D*A)
Table E.2. Amplification characteristic
Curve
DAC1
DAC3
Point
1
2
3
4
1
2
3
4
Time, µs
6000
7000
40000
100000
6000
10000
35000
100000
Amplification,
convent. units
55
85
40
30
50
60
150
220
Table E.3. Profile 2 (for AS-1xx-xx3, AS-6xx-xx0, and AS-7xx-xx0)
Parameter
Type of
ultrasound
velocity
correction*
Dead
zone, m
Correlation
threshold
Number of
cycles in a
sounding
pulse
Search
criterion
Representation
on the display
Type of
correction
Ddz Smin
Np Search by
Value
t °C
0.800
10
20
max (D*A)
Table E.4. Amplification characteristic
Curve
DAC1
DAC3
Point
1
2
3
4
1
2
3
4
Time, µs
3000
7000
60000
100000
3000
6000
40000
100000
Amplification,
convent. units
110
90
40
30
55
30
150
220
* - type of correction of ultrasound velocity in the gas medium:
- ref.
- by the reference reflector
-
t °C
- by RTD.
Содержание LV Series
Страница 1: ...ULTRASONIC LEVEL GAUGE AFLOWT LV VERSION LV 2xx INSTALLATION MANUAL 9001 2008 Saint Petersburg Russia ...
Страница 19: ...19 reference dimension 1 RTD 2 mount flange 3 PEP Fig A 4 61x xx0 Acoustic system ...
Страница 21: ...21 Fig A 6 Mount Adaptor ...
Страница 22: ...22 Fig A 7 Flange with the ring bolt installed ...
Страница 23: ...23 Fig A 8 Pipe mount adaptor ...
Страница 24: ...24 Fig A 9 Perforated adaptor pipe ...
Страница 25: ...25 APPENDIX B Methods for mounting acoustic systems Fig B 1 Mounting AS 11x xx3 ...