flowIQ
®
3100 TECHNICAL DESCRIPTION
9
Kamstrup A/S • Technical Description • 5512
-
1242_B1_GB • 05.2015
2.5
Accuracy
MPE according to
OIML R49
MPE (maximum permissible error range) – see figure below
.
Meter approved 0
.
1…30°C
±
5 % i
n range Q1
≤
Q < Q2,
±
2 % in range Q2
≤
Q
≤
Q4
30…
5
0°C
±
5 % i
n range Q1
≤
Q < Q2,
±
3 % in range Q2
≤
Q
≤
Q4
Q1: Minimum flow
(Q3/Dynamic range)
Q2: Transition flow (1
.6 x Q1)
Q3: Permanent flow
Q4: Overload flow
(1
.25xQ3)
OIML R49 requirements to water meters
2.6
Temperature measurement
flowIQ® 3100 measures ambient and water
*)
temperature -
also see section 8.5.1
The following accuracies apply to temperature data:
Water temperature:
0 - 20 ° C ± 1 ° C
20 -
30 ° C ± 2.5 ° C
> 30 ° C – No valid measurement
Ambient temperature: -
5
-
55 ° C ± 1 ° C
*)
Applies only the small sensor sizes - 1.6 and 2.5m
3
/h