Kobold DF H 3K Series User manual

Operating Instructions
for
Flow Monitor
Model: DF-...Hxx3K
DF-...IHx3K
DF-...KLxxx
DF-...DLxxx
DF-...ZLxxx

DF
Page 2 DF K11/0623
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 4
4.Regulation Use ............................................................................................. 5
5.Operating Principle ........................................................................................ 6
6.Mechanical Connection ................................................................................. 6
7.Electrical Connection .................................................................................... 7
7.1DF-…Hxx3K, DF-…IHx3K ................................................................... 7
7.2DF-…KLxxx, DF-…ZLxxx, DF-…DLxxx ............................................... 8
8.Mechanical Commissioning .......................................................................... 9
9.Operation ...................................................................................................... 9
10.Maintenance ............................................................................................... 10
11.Technical Information .................................................................................. 10
12.Order Codes ............................................................................................... 10
13.Dimensions ................................................................................................. 10
14.Recommended Spare Parts ........................................................................ 11
15.Disposal ...................................................................................................... 12
16.EU Declaration of Conformance ................................................................. 13
17.UK Declaration of Conformity ...................................................................... 15
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

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DF K11/0623 Page 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.
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com
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.
PED 2014/68/EU
In acc. with Article 4 Paragraph (3), "Sound Engineering Practice", of the
PED 2014/68/EU no CE mark.
Pipe
Table 8
Group 1
dangerous fluids
Table 9
Group 2
no dangerous fluids
All DF-models except
DF-xxG(H)R32
DF-xxG(H)R40
Art. 4, § 3 Art. 4, § 3
DF-xxGR32../DF-xxGR40 not deliverable Art. 4, § 3
DF-xxHR32../DF-xxHR40.. Cat. II Art. 4, § 3
DF-xxHF50.. Cat II Art. 4, § 3

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Page 4 DF K11/0623
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:
 Sensor housing with mounted connection box or electronics

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DF K11/0623 Page 5
4. Regulation Use
The units of model DF are used for measurement of liquid flow. Only low viscosity
fluids which are chemically compatible with the materials used in the sensor
housing are allowed to be measured. If using higher viscosity media, large
measuring errors can occur. Long threads can lead to the seizure of the rotor.
Likewise, ferritic particles can build up on the rotating vane and lead to faulty
operation or destruction of the rotor. If in doubt, please contact the supplier.
Material Combinations
Standard version High-pressure
version
Material
combination I II III IV1) VI1) VII1)
Order code ..A.. ..B.. ..D.. ..E.. ..G.. ..H..
Connection
types Pipe thread Pipe thread Pipe thread Pipe thread flange
Pipe
thread
Pipe thread
flange
Case Trogamide Polysulfone Brass
nickel-plated St.steel4)
Brass
nickel-
plated
St.steel4)
Cover Trogamide Polysulfone Polysulfone Polysulfone
Brass
nickel-
plated
St.steel4)
Connection Brass
nickel-plated St.steel4) Brass
nickel-plated St.steel4)
Brass
nickel-
plated
St.steel4)
Locking pins Brass Brass Brass - - -
O-rings NBR FPM NBR FPM NBR FPM
Vane POM PTFE POM PTFE POM PTFE
Axle3) St.steel4) St.steel4) St.steel4) St.steel4) St.steel4)) St.steel4)
Bearing3) PTFE PTFE PTFE PTFE PTFE PTFE
Screen PTFE2) PTFE2) PTFE2) PTFE2) PTFE2) PTFE2)
Max.
operating
pressure
10 bar 10 bar 16 bar 16 bar 100 bar
100 bar
flange
PN 40
Max.
operating
temperature
60 °C 80 °C 80 °C 80 °C 80 °C 80 °C
1) Connection cannot be rotated
2) Stainless St. for model DF 0.5
3) Special version upon request
4) Stainless St.1.4571, 1.4404

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Page 6 DF K11/0623
5. Operating Principle
KOBOLD measuring sensors are available with pipe thread or flange
connections; standard or high-pressure versions are optional. The standard
version is delivered with a standard front cover from solid, transparent plastic,
which allows the flow to be optically inspected. The rotary motion of the shining
red vane can be clearly seen. Faults such as power failure or rotor blockage can
thus be quickly detected in situ. In addition to their use as measuring and
monitoring systems, the devices can also be used as flow indicators.
The standard front cover is replaced by a metal plate on the high-pressure
version (up to 100 bar with the threaded version). The devices can be installed in
any position. However, the flow must always be in the direction of the arrow, and
the front panel of the device must be arranged in the vertical plane. The fluidic
housing must be full with liquid. Additional inlet or outlet pipes are not required.
The large radial clearance between vane and housing wall renders the measuring
sensor insensitive to dirt. Depending on the version, the connection fittings can
be rotated and are bearing mounted. Switching electronics or vane front may be
rotated at will for ease of viewing (while in service).
The KOBOLD measuring sensors are also available without a compact electronic.
The linear flow proportional pulse signal provided by the sensor can be controlled
by customer own electronics. The customer is able to integrate the sensor directly
into the electronics with the OEM-version (implement EMC-immunity) and can
therefore save costs and material.
6. Mechanical Connection
Before installation
 Please make sure that the actual flow throughput matches the flow range of
the instrument. The flow range may be read from the label.
Warning! If the measuring range is exceeded by more than 20%,
bearing damage may occur.
 Please make sure that the allowable maximum operating pressure and
operating temperature of the instruments are not exceeded.
 Make sure that the electrical supply to the instrument conforms to the
equipment operating data (see label).
 Remove all transport packing and make sure that no packing material is left in
the instrument.
 The instrument may be installed in any position. However, the flow must
always take place in the direction of the arrow, while the front face of the
instrument must always be in the vertical plane.

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DF K11/0623 Page 7
 It must be ensured that the instrument
housing is continuously filled with the flow
medium, especially for flows from top to
bottom. No straight runs are necessary at
inlet and outlet.
 Sealing of the connection threads should
be carried out with PTFE tape or similar.
 During installation of the instrument, it must
be checked that no stress is applied to the
connections. We recommend that the inlet
and outlet pipes are mechanically fixed
approximately 50 mm from each instrument
connection.
 When using Material Combination V
(PTFE) the instrument connections may not
be rotated.
 Check that the connection thread to pipe is fully sealed.
Warning! The threaded connections of the instrument must be
tightened with a suitable sized open ended spanner. Otherwise, the
housing may be stressed which could lead to breakage of the
equipment.
7. Electrical Connection
7.1 DF-…Hxx3K, DF-…IHx3K
Attention! Make sure that the voltage value of your instrument is
between 5 and 24 VDC.
 Make sure that the supply wires are de-
energised.
 Connect the 3-pole connection clamp in
accordance with the wiring diagram.
wrong!
right!

DF
Page 8 DF K11/0623
Attention! Incorrect wiring will lead to damage of the unit’s
electronics.
7.2 DF-…KLxxx, DF-…ZLxxx, DF-…DLxxx
Attention! Make sure that the voltage value of your instrument is
24 VDC.
 Make sure that the supply wires are de-energised.
 Connect the wires in accordance with the wiring diagram.
Wire
number DF-…KLxxx DF-…ZLxxx DF-…DLxxx
1 +24 VDC +24 VDC +24 VDC
2 GND GND GND
3 4-20 mA 4-20 mA 4-20 mA
4 GND GND GND
5 d.c. *) d.c. *) Ctrl 1 *)
6 d.c. *) Reset TM *) Ctrl 2 *)
7 relay S1 N/O relay S1 N/O relay S1 N/O
8 relay S1 COM relay S1 COM relay S1 COM
9 relay S2 N/O relay S2 N/O relay S2 N/O
10 relay S2 COM relay S2 COM relay S2 COM
*) d.c. = Don’t connect wire!
Reset TM = Reset part quantity
Ctrl 1 -- GND => Start
Ctrl 2 -- GND => Stop
Ctrl 1 -- Ctrl 2 -- GND => Reset dosage
Attention! Incorrect wiring will lead to damage of the unit’s
electronics.

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DF K11/0623 Page 9
8. Mechanical Commissioning
To avoid pressure surges, the flow medium should be slowly introduced into the
instrument.
Attention! Pressure surges from solenoid valves, ball valves or
similar may result in damage to the instrument (water hammer). In
the operating condition it must be checked that the instrument
housing is continuously filled with the flow medium.
Large air bubbles in the instrument housing can lead to measuring
errors or destruction of the bearings.
9. Operation
DF-...KLxxx
See Operating Instructions ZED-K
DF-...ZLxxx
See Operating Instructions ZED-Z
DF-...DLxxx
See Operating Instructions ZED-D

DF
Page 10 DF K11/0623
10. Maintenance
The DF-..HN.. and DF-..HP.. instrument is maintenance-free for measured
media without contamination. Since the paddlewheel contains magnets, any
ferritic particles present in the medium may lead to problems. In order to avoid
such problems, we recommend the installation of a magnet filter (e.g. the
magnet filter, model MF-R). Should cleaning of the instrument become
necessary, the housing cover may easily be removed to provide access to the
interior. Any work on the electronics may only be undertaken by the supplier;
otherwise, the warranty will become invalid.
11. Technical Information
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com
12. Order Codes
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com
13. Dimensions
Operating instructions, data sheet, approvals and further information via the QR
code on the device or via www.kobold.com