Diehl Metering AURIGA DN 15 User manual

AURIGA DN 15/20
User guide

AURIGA DN15/20
2 09/2020
Table of contents
1Product description ..............................................................................................................3
1.1 General principle................................................................................................................3
1.2 Metrological features..........................................................................................................3
1.2.1 Calibration curve..............................................................................................................3
1.2.2 Pressure loss...................................................................................................................4
1.3 Technical features..............................................................................................................4
1.4 Dimensions........................................................................................................................5
2Installation..........................................................................................................................6
2.1 Installation precautions.......................................................................................................6
2.1.1 Cleaning the pipes ...........................................................................................................6
2.1.2 Pipes alignment...............................................................................................................6
2.2 Installation principle...........................................................................................................6
2.2.1 Installation position..........................................................................................................6
2.2.2 Place of installation..........................................................................................................7
2.2.3 Installation recommendations ...........................................................................................7
2.2.4 Liability...........................................................................................................................8
3Precautions of use................................................................................................................8
4Regulations .........................................................................................................................8
5Metrological curves ..............................................................................................................8

AURIGA DN15/20
3 09/2020
1PRODUCT DESCRIPTION
1.1 GENERAL PRINCIPLE
AURIGA is a single jet water meter designed in accordance with EN 14154, ISO 4064 and OIML R49
standards. It has a MID certification and complies with the standard applying to materials in contact
with water. It is a measuring device approved for invoicing that must be handled with care.
AURIGA is made of a brass body (1) containing the hydraulic part, a register (2) and a grey ring (3)
that seals the register to the body. The ring rotates freely ensuring optimal legibility of the data. The
hole (4) enables on-site sealing of the meter. The 2 arrows (5) indicate which way the water is
flowing.
fig.1
1.2 METROLOGICAL FEATURES
1.2.1 CALIBRATION CURVE
AURIGA has been manufactured with care to ensure high precision and reduced standard deviation.
It is MID approved up to R=160H and R=63V (see metrological curves chapter 5).
Nominal diameter
DN
mm
15
15
20
20
Length
L
mm
165/170
165/170
190
190
R standard*
Q
3
/Q
1
160H-63V
125H-63V
160H-63V
125H-63V
Nominal flowrate
Q
3
m³/h
2.5
2.5
4
4
Starting flowrate horizontal
l/h
3
6
8
12
Minimum flowrate horizontal
Q1
l/h
15.625
20
25
32
Transition flowrate horizontal
Q
2
l/h
25
32
40
51.2
Minimum flowrate vertical
Q
1
l/h
39.7
39.7
63.5
63.5
Transition flowrate vertical
Q
2
l/h
63.5
63.5
101.6
101.6
Maximum flowrate
Q
4
m³/h
3.125
3.125
5
5
Head loss at Q
3
bar
0.60
0.60
0.58
0.58
Head loss at Q
4
bar
0.94
0.94
0.91
0.91
kvs (deltaP=Q²/Kvs²)
3.22
3.22
5.25
5.25
*Other values on request - H=horizontal installation position / V=vertical installation position

AURIGA DN15/20
4 09/2020
1.2.2 PRESSURE LOSS
1.3 TECHNICAL FEATURES
Body Brass
Ring Grey -> cold water
Register
Glass in standard -> high resistance to moisture in extreme
environments (e.g. a manhole that is flooded on a regular basis).
Plastic in option
Waterproof -> the register withstands prolonged immersion.
Modularity
Pre-equipped to be fitted (even on-site) with clip-on modules of the
IZAR range:
•IZAR RC i – radio module
•IZAR PULSE i – pulse emitter
•IZAR MBUS COMPACT i – MBus emitter
•IZAR DOSING – electronic register with reset
Temperatures
Water temperature: +0.1 … +50°C (T50)
Operating ambient temperature: +1… +55°C max.
Storage temperature: -10 …+55°C max.
Frost protection
Protect the meter from frost by completely draining all the water it
contains. Shut the valve upstream the meter and purge the circuit
(remove the non-return valve if necessary).
Caution: the pressure plate may break if the meter is not drained.
Filtration
Plastic filter located in the inlet nozzle. The filter can be easily
checked and cleaned.
Caution: during normal operation, water going through the meter
must not contain any suspended solid particles larger than 0.1 mm
for a concentration of 0.1 gram/litre.
Clogging Withstands occasional sanding (i.e. following work carried out on a
pipe) without sustaining damage.

AURIGA DN15/20
5 09/2020
Static pressure
Nominal pressure: 16 bars.
Test pressure: 32 bars (in accordance with ISO4064 / EN14154 /
OIMLR49).
Breaking pressure greater than 70 bars.
Resistance to pressure
changes
Withstands at least 15,000 cycles of 0.6 second from 3 to 32 bars.
Sudden influx of water Caution: while working on the pipes, carefully bleed the pipes in
order to prevent the formation of air bubbles, which could damage
the meter when the water is turned back on.
Overflow Resistance to a flowrate of 2XQ4without damaging its parts for a
limited period of time.
Endurance Compliant with the MID regulatory tests.
Resistance: 100,000 cycles at Q3 and100 hours at Q4.
Non-return valve Possibility to add a non-return valve in the outlet pipe.
Fraud resistance
Fraud attempt with a clamp:
-> The glass of the glass/metal register will break
or the orange pin indicator of the plastic register will disappear.
Fraud attempt by opening the sealed ring:
-> visible deterioration of the sealing ring.
1.4 DIMENSIONS
fig.2
Nominal diameter
DN
mm
15
15
20
20
Length
L
mm
165/170
165/170
190
190
R standard*
Q3/Q1
160H-63V
125H-63V
160H-63V
125H-63V
Width
B
mm
73
73
90
90
Height
H
mm
75
75
80
80
Thread connections
G
inch
3/4"
3/4"
1"
1"
Weight
kg
0.53
0.53
0.73
0.73
*other values on request

AURIGA DN15/20
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2INSTALLATION
2.1 INSTALLATION PRECAUTIONS
To be carried out in accordance with EN ISO 4064-5:2017 and EN14154-2:2005 + A2:2011.
2.1.1 CLEANING THE PIPES
fig.3
AURIGA must be installed on a clean pipe free
from solid particles on the inside.
If in doubt, insert a by-pass sleeve in place of
the meter and clean the pipe out with high
flowrate water flushing.
2.1.2 PIPES ALIGNMENT
fig.4
The pipes must be perfectly aligned in order
to minimize mechanical stresses on the body.
Use a drill nut to seal the meter on the inlet
pipe.
2.2 INSTALLATION PRINCIPLE
2.2.1 INSTALLATION POSITION
H=horizontal installation position / V=vertical installation position
fig.5
AURIGA
meter is sensitive
to the position in which it is
installed.
To optimize its metering
properties, the meter
should preferably be
installed horizontally (top
of register facing up and
horizontal).

AURIGA DN15/20
7 09/2020
fig.6
Caution: Make sure that the direction of
the water flow matches the direction of
the arrows located on the meter’s body.
2.2.2 PLACE OF INSTALLATION
fig.7
The metered water must be free from
gas.
Install AURIGA at a low point of a pipe to
prevent the formation of air pockets.
No straight length required either before
or after the meter (U0 / D0 approved).
2.2.3 INSTALLATION RECOMMENDATIONS
fig.8
The body of the meter incorporates
2 nozzles, each with a standard
connection thread. The gaskets that
form the seal between the meter
and the connectors are not included.
Caution: Do not use Teflon tape or
threadlocker.
To prevent the meter from rotating
during tightening, thus damaging
the gaskets, the use of a spanner on
each end of the inlet and outlet
nozzle is recommended.
Do not exceed the maximum
tightening torque of 3 m.kg. or 30
Nm.

AURIGA DN15/20
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2.2.4 LIABILITY
If the installation is not carried out in accordance with good workmanship practices, and
if the above-mentioned procedures are not followed, the warranty shall be null and void.
If there are additives or additional substances in the water or any process of the
installation, the installer or the operator has to make sure that the characteristics
of the drinking water and the materials of the installation - meter included - are
not altered.
3PRECAUTIONS OF USE
Storage
Do not store the meters for more than 3 months.
Do not stack the pallets.
Do not place loads heavier than 80 kg on the meter.
Cleaning Use only soapy or slightly acidified water to clean the meter. The
use of solvents or abrasive cleaners is prohibited.
Stepping AURIGA should not be used as a step. However with its cover
closed, it can withstand the load of a person weighing less than 80
kg.
Drop test Designed to withstand a 1 m fall onto a hard floor. In case of a fall,
or if the meter shows traces of impact, we recommend testing it
prior to installation.
4REGULATIONS
AURIGA DN15/20 complies with the European directives as indicated on the EU declaration of
conformity delivered with the product and available at:
https://www.diehl.com/metering/en/diehl-metering/support-center/downloads
It also meets the food-grade requirements relating to materials in contact with water.
5METROLOGICAL CURVES

AURIGA DN15/20
9 09/2020

www.diehl.com/metering
PfM 09/2020 -Specifications subject to change without notice
Diehl Metering S.A.S.
67 rue du Rhône
68300 Saint-Louis
Phone: [phone]
Fax: [phone]
E-Mail: info-[email protected]