Operating Instructions
for
Rotor flow Indicator
Model: DKF
DKF
1. Contents
1. Contents ........................................................................................................ 2
2. Note .............................................................................................................. 3
3. Instrument Inspection .................................................................................... 3
4. Regulation Use .............................................................................................. 3
5. Mechanical Connection ................................................................................. 4
5.1 Before installation ................................................................................ 4
6. Technical Information .................................................................................... 4
7. Order Codes ................................................................................................. 5
8. Dimensions ................................................................................................... 5
9. ATEX - Declaration of the Manufacturer ....................................................... 6
9.1 General ................................................................................................ 6
9.2 Areas of use ......................................................................................... 6
9.3 Evaluation ............................................................................................ 6
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: +49(0)6192-2990
Fax: +49(0)6192-23398
E-Mail: info.de@kobold.com
Internet: www.kobold.com
page 2 DKF K01/1115
DKF
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
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.
Diagram 8, Pipe, Group 1 dangerous fluids
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:
Rotor Flow Indicator: Model: DKF
Operating Instructions
4. Regulation Use
Any use of the Rotor Flow Indicator, model: DKF, which exceeds the
manufacturer’s specifications, may invalidate its warranty. Therefore, any
resulting damage is not the responsibility of the manufacturer. The user assumes
all risk for such usage.
DKF K01/1115 page 3
DKF
5. Mechanical Connection
5.1 Before installation
Remove all packing materials and transport restraints and ensure that no such
materials remain in the device.
Make sure that the maximum operating pressure and temperature of the device
are not exceeded. (see section 6.Technical Information..)
Install the flow indicator in the piping system, ensuring that the piping is rigidly
supported at the inlet and outlet of the unit with pipe clamps
Ensure that the piping is aligned with the inlet and outlet fittings and the no
piping induced stresses are exerted in the indicator. This stress can result in
damage to the device during system operation
Protect the device from external damage.
Avoid pressure surges within the indicator chamber, such as those arising from
fast start up/shut off of flow or pulsating flow.
If possible, after completing the mechanical installation, check the threaded
connection between the device and the piping for leakage immediately.
6. Technical Information
Maximum Temperature: 120 °C
Maximumg Pressure: 6 bar
page 4 DKF K01/1115
DKF
7. Order Codes
Order data (Example: DKF-1101H R06)
Indication range Model Connection
l/min
water
0.14 - 2 1
0.25 - 7 1
0.45 - 18 1
0.6 - 28 1
1 - 61 1
1.8 - 83 1
* max. flow
8. Dimensions
∆ P
(bar)*
DKF-11.. DKF-21.. G-thread NPT-thread
DKF-1101H.. DKF-2101H.. R06 N06
DKF-1102H.. DKF-2102H.. R08 N08
DKF-1103H.. DKF-2103H.. R10 N10
DKF-1104H.. DKF-2104H.. R15 N15
DKF-1105H.. DKF-2105H.. R20 N20
DKF-1106H.. DKF-2106H.. R25 N25
Model p
DKF-..01H
DKF-..02H
DKF-..03H
DKF-..04H
DKF-..05H
DKF-..06H
t
max
6 bar 120 °C G 1/8 1/8“ 8 56 41 50 0.3
6 bar 120 °C G 1/4 1/4“ 10 56 41 50 0.28
6 bar 120 °C G 3/8 3/8“ 14 73 53 67 0.57
6 bar 120 °C G 1/2 1/2“ 14 73 53 67 0.54
6 bar 120 °C G 3/4 3/4“ 16 109 72 94 1.41
6 bar 120 °C G 1 1“ 18 109 72 94 1.30
G NPT L1 L A B
max
Weight
kg
DKF K01/1115 page 5
DKF
9. ATEX - Declaration of the Manufacturer
9.1 General
Risk analysis report pursuant to EN 13463 (positive list) for use in category
2 Explosion Risk Area was done.
When used properly, and being a piece of mechanical equipment, the rotor flow
indicator Type DKF-x1****** does not have its own potential source of ignition; it
is not assigned an ID in the sense of the ATEX Directive.
9.2 Areas of use
The units can be used as follows:
In the Zone 2 (Gas-Ex, Cat. 3G) into explosion group of IIA, IIB and IIC
In the Zone 22 (Dust-Ex, Category 3D) at non-conductive dusts with a
minimum igniting energy of > 3 mJ
In the Zone 1 (Gas-Ex, Cat. 2G) into explosion group of IIA, IIB and IIC
In the Zone 21 (Dust-Ex, Category 2D) at non-conductive dusts with a
minimum igniting energy of > 3 mJ
In normal use, the rotor flow indicators are completely filled with medium.
Zone 2 – or Zone 1 – conditions may prevail for a short time.
9.3 Evaluation
Adherence to EN 13463, Parts 1 to 8 (Mechanical Explosion Prevention)
When used properly, the rotor flow indicator does not have its own potential
source of ignition as per the conditions of Categories 2 and 3. It does however
fulfil the following requirements:
The manufacturer has subjected all exposed parts of the device to the impact
and environmental strain tests pursuant to EN 13463-1.
When installed, the device must be protected against external
energy impact – or measures should be taken to take into account
any possible zone violations in the system.
The outer casing of the device is made of brass or stainless steel and
borosilicate glass; there are no light metal parts.
Hofheim, 12. Nov. 2015
H. Peters M. Wenzel
General Manager Proxy Holder
page 6 DKF K01/1115
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