Diehl Metering AQUILA DN15 사용자 설명서 - 페이지 4
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1.3 M
ETROLOGICAL FEATURES
1.3.1 C
ALIBRATION CURVE
The meter has been manufactured with care in order to ensure high precision and
reduced standard deviation. The metrology is better than class R=200 (see curves § 5).
1.3.2 P
RESSURE LOSS
1.4 T
ECHNICAL FEATURES
1.4.1 F
ROST PROTECTION
When the meter is drained (when the valve before the meter is closed and a drain is opened
after the meter) the measuring chamber is emptied of water, and frost has no impact on the
future characteristics of the meter.
When the meter is not drained, there is a risk of the pressure plate breaking.
1.4.2 F
ILTRATION
AQUILA meter comes standard with a filter housed in the upstream pipe. A regular maintenance of
the filter will ensure efficient metrology and an optimized lifetime of the measuring mecanism.
1.4.3 N
OISE LEVEL
Due to its design and construction, AQUILA is virtually noiseless.
4 | AQUILA DN15
Q3
Starting Q
Qmin const.
Q 1
Q 2
Q 3
Q 4
Q overload
Values with R=200 standard
3
m
h
2.5
3
<0.006
m
h
3
m
h
0.010
3
m
h
0.0125
3
m
h
0.020
3
m
h
2.5
3
m
h
3.125
3
m
h
9.375
fig.3
04/2016