Kobold DAF-11 Series User manual

Operating Instruction
for
Rotating Vane Flow Indicator
Model: DAF

DAF
Seite 2 DAF K02/0322
1. Contents
1.Contents ............................................................................. 1
2.Note .................................................................................... 3
3.Instrument Inspection ......................................................... 3
4.Regulation Use ................................................................... 4
5.Operating Principle ............................................................. 4
6.Mechanical Connection ...................................................... 5
7.Commissioning ................................................................... 6
8.Maintenance ....................................................................... 6
9.Technical Information ......................................................... 7
10.Order codes ........................................................................ 8
11.Dimensions ......................................................................... 9
12.Recommended Spare-parts .............................................. 11
13.EU Declaration of Conformance ....................................... 12
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

DAF
DAF K02/0322 Seite 3
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
as per PED 2014/68/EU
In acc. with Article 4 Paragraph (3), "Sound Engineering Practice", of the PED
2014/68/EU no CE mark.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Rotating Vane Flow Indicator model: DAF

DAF
Seite 4 DAF K02/0322
4. Regulation Use
Any use of the Rotating Vane Flow Indicator, model: DAF, which exceeds the
manufacturer’s specification, may invalidate its warranty. Therefore, any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk
for such usage.
5. Operating Principle
The KOBOLD Rotating Vane Flow Indicator is applied where visual flow
indication without flow measurement is required. A square housing with
transparent windows front and back contains a rotating vane whose rotary
motion, caused by the flowing medium, indicates presence of “flow”.
Within the same housing dimensions, differing minimum and maximum flow
ranges are obtained by changing the inlet port orifice. The instruments can be
installed in any position. Flow, however, must be in the direction indicated by the
arrow.
They are pivot-mounted, which enables the sight glass of the indicating unit to be
turned to an optimum viewing direction even during operation (not with material
combination DAF-14...).

DAF
DAF K02/0322 Seite 5
6. Mechanical Connection
Before installation
 Please ensure that the actual flow-volume is in agreement with the measuring
range of the unit. The measuring range can be read from the model label.
Attention! On over-stepping of measuring range (more than 20 %), may
cause damage to bearings and significant measurement errors may result.
 Make sure that the permitted max. operating pressure and temperature of the
device are not violated.
 Remove all the transportation-safety locks etc. and ensure, that there exist no
packing-material parts inside the unit.
 These units can be mounted without regard to position. Thereby, the flow must
always be in the direction of arrow, and the front-side of the unit remains in the
vertical plain.
 In particular, attention must be paid to flow from top to bottom, such that the
flow chamber is completely filled with the liquid. Additional inlet and outlet
lengths are not required.
 The sealing of connection screw joints is succeeded through PTFE tape or
similar material.
 Sealing of units with flange connections succeeds by means of a suitable flat
seal, provided by the customer.
During installation of the unit, attention must be paid to see that no high
pressure or tensile loads exert on the connection screw joints.We recommend
fastening an inlet and outlet pipe mechanically at a distance of approx. 50 mm
from the connection screw joint.
 If possible, after mechanical installation, check whether the sealing of
connection-joints/piping is adequate
Note! The union fittings (connection screw joints) of the device must be
absolutely countered when screwing in by means of a suitable fork wrench.
Otherwise voltages will be transferred to the transducer housing, which can
lead to destruction of the device.

DAF
Seite 6 DAF K02/0322
7. Commissioning
In order to avoid pressure peaks, the flow medium should flow slowly into the
device.
Note! Pressure peaks by sudden flowing, caused by single solenoid valves,
ball valves or the like, can lead to the destruction of the device (water
hammer!). In the operating condition, it is to be made certain that the
sensor is constantly filled with the medium.
Larger bubbles in the measuring chamber can lead to measurement errors
or destruction of bearings.
8. Maintenance
In case, the medium to be measured is not contaminated, the unit is
maintenance-free.
Should the cleaning of a device be deemed necessary, it can be done easily by
removing housing cover and making the interior of housing accessible. After
cleaning, the unit can be simply assembled together.

DAF
DAF K02/0322 Seite 7
9. Technical Information
DAF-1...
Material combinations
DAF 11... 12... 13... 14...
Housing PA 6-3-T PSU nickel plated
brass
st. steel
Housin
g
cove
r
PA 6-3-T PSU PSU PSU
Connection nickel plated
brass
st. steel1)) nickel plated
brass
st. steel 1)
Lockin
g
pins brass brass brass --
O rin
g
s NBR FPM NBR FPM
Rotatin
g
vane POM PTFE POM PTFE
A
xle st. steel1) st. steel1) st. steel1) st. steel1)
A
xle bearin
g
PTFE PTFE PTFE PTFE
max. operating
pressure
10 bar 10 bar 16 bar 16 bar
max. operating
temperature
60 °C 110 °C 110 °C 110 °C
1) Material code. 1.4571
DAF-2...
Material combination
Housin
g
st. steel 1.4571/1.3955
Housin
g
cove
r
PSU
Connection st. steel 1.4571
O rin
g
s FPM
Rotatin
g
vane PTFE
A
xle st. steel 1.4571
A
xle bearin
g
PTFE
max. operating
pressure
16 bar
max. operating
temperatu
r
e
110 °C

DAF
Seite 8 DAF K02/0322
10. Order codes
Example: DAF-1101H R06
Indication ran
g
e Model Connection
Water
[l/min]
Δ P
[ba
r
]
DAF-11.. DAF-12.. DAF-13.. DAF-14.. G-thread NPT-thread
0.03...0.1 0.25 DAF-
1101H..
DAF-
1201H..
DAF-
1301H..
DAF-
1401H..
R06 R08 N06 N08
0.03...0.5 0.8 DAF-
1102H..
DAF-
1202H..
DAF-
1302H..
DAF-
1402H..
R06 R08 N06 N08
0.2...3 0.85 DAF-
1103H..
DAF-
1203H..
DAF-
1303H..
DAF-
1403H..
R06 R08 N06 N08
0.5...12 0.55 DAF-
1104H..
DAF-
1204H..
DAF-
1304H..
DAF-
1404H..
R08 R15 N08 N15
1...25 0.35 DAF-
1105H..
DAF-
1205H..
DAF-
1305H..
DAF-
1405H..
R15 R20 N15 N20
2...50 0.35 DAF-
1106H..
DAF-
1206H..
DAF-
1306H..
DAF-
1406H..
R20 R25 N20 N25
5...150 1.25 DAF-
1107H..
DAF-
1207H..
DAF-
1307H..
DAF-
1407H..
R32 R40 N32 N40
Example: DAF-2401H F15
Indication ran
g
e Model Connection DIN flan
g
e Connection ANSI flan
g
e
Water
[l/min]
Δ P
[bar] DAF-24... DN15 PN16
DN25
PN16
DN40
PN16
DN50
PN16
½“
150 lbs
1“
150 lbs
1½“
150 lbs
2“
150 lbs
0.03...0.1 0.25 DAF-
2401H.. F15 - - - A15 - - -
0.03...0.5 0.8 DAF-
2402H.. F15 - - - A15 - - -
0.2...3 0.85 DAF-
2403H.. F15 - - - A15 - - -
0.5...12 0.55 DAF-
2404H.. F15 F25 - - A15 A25 - -
1...25 0.35 DAF-
2405H.. F15 F25 F40 - A15 A25 A40 -
2...50 0.35 DAF-
2406H.. - F25 F40 - - A25 A40 -
5...150 1.25 DAF-
2407H.. - F25 F40 F50 - A25 A40 A50

DAF
DAF K02/0322 Seite 9
11. Dimensions
DAF-1...
Connections
G⅛
R06
G¼
R08
G½
R15
G¾
R20
G1
R25
G1¼
R32
G1½
R40
⅛“ NPT
N06
¼“ NPT
N08
½“ NPT
N15
¾“ NPT
N20
1“ NPT
N25
1¼“ NPT
N32
1½“ NPT
N40

DAF
Seite 10 DAF K02/0322
DAF-2...
Connections
DN D
(
mm
)
K
(
mm
)
d4
(
mm
)
d2
(
mm
)
No. of screws
15
25
40
50
95
115
150
165
65
85
110
125
45
68
88
102
14
14
18
18
4
4
4
4

DAF
DAF K02/0322 Seite 11
12. Recommended Spare-parts
1.1) Rotating vane: PTFE
1.2) Rotating vane: POM
2.1) St. Steel axle with PTFE bearing
2.2) Ceramic axle with PTFE bearing
3.1) Transducer chamber cover: PA 6-3-T
3.2) Transducer chamber cover: PSU
4.1) O-Rings (NBR)
4.2) O-Rings (FKM)

DAF
Seite 12 DAF K02/0322
13. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Rotating Vane Flow Indicator Model: DAF
to which this declaration relates is in conformity with the standards noted below:
EN IEC 63000:2018 Technical documentation for the assessment of electrical
and electronic products with respect to the restriction of hazardous substances
Also, the following EC guidelines are fulfilled:
2011/65/EU RoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Hofheim, 30 March 2022
H. Volz M. Wenzel
General Manager Proxy Holder