Kobold KDF-9 Operating Instructions Manual Download Page 8

 

Operating Instructions KDF-9/KDG-9

 

 

KDF-9/KDG-9 K04/0922 

 

 

                                            Page 8 

6.1  Mounting / start-up 

When starting up the flowmeter, the following points must be observed:

 

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The variable-area flow meter must be installed perpendicularly (direction of flow from the bottom to the 
top).  

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Take special care to install glass-tube devices free from strain.  

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The size of the product line to be connected must be identical to the size of the device connection.  

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All instruments are shipped with the valve installed at the inlet. By turning the glass tube resp. the fitting, 
the valve also can be installed at the outlet. 

-

 

E/F/A/B 

(option diff.pressure regulator): When using gases, the version for a constant inlet pressure 

with "valve at the top" and for a constant counter pressure with "valve at the bottom" should be used. 
If liquids are involved, the position of the valve does not have any impact on the function of the meter. 

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Slowly

 open the shut‐off valve upstream and downstream of the flowmeter.

 

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When

 measuring liquids, vent the pipes carefully.

 

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When

 measuring gases, increase pressure slowly.

 

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Void

 float impact (e.g. caused by solenoid valves), as this is likely to damage the measuring

 

section or float.

 

6.2  Ambient conditions 

6.2.1  Ambient temperature ranges  

-20°C to +100°C (with limit switch -20° +70°C) 

(risk of breakage due to frost)

 

6.2.2  Storage temperature  

-20°C to +100°C 

6.2.3  Climatic category  

Weather-protected and/or unheated locations 

6.2.4  Degree of protection  

IP65 (EN60529) 

6.2.5  Shock resistance/vibration resistance 

The meter should be protected from shocks and vibrations, which could cause damage. 

6.2.6  Electromagnetic compatibility  

Built in limit switch: 
acc. NAMUR recommendation  NE 21 
Product standard: EN 60947-5-2: 2004 

6.3  Fluid conditions 

6.3.1  Fluid temperature ranges  

without limit switch -20°C to + 100°C 
with limit switch -20°C to + 70°C 

(risk of breakage due to frost)

 

6.3.2  Fluid pressure limit  

16 bar (at 20 degrees Celsius) 

Important:  

All pressure values are for non-hazardous liquids and for devices installed free from strain. 
For 

E/F/A/B,

 (option differential pressure regulator)

 

the maximum unilateral pressure resistance of the 

diaphragm is 

7 bar

6.3.3  Inlet and outlet sections 

Inlet and outlet sections are not required for a linear flow profile of the fluid.  

6.3.4  Physical state:  

Liquid or gaseous 

6.3.5  Pressure for gas measurement 

Summary of Contents for KDF-9

Page 1: ...Operating Instructions for Flow Meter Model KDF 9 KDG 9...

Page 2: ...DITIONS OF USE 7 6 1 Mounting start up 8 6 2 Ambient conditions 8 6 2 1 Ambient temperature ranges 8 6 2 2 Storage temperature 8 6 2 3 Climatic category 8 6 2 4 Degree of protection 8 6 2 5 Shock resi...

Page 3: ...ating personnel 12 15 PACKAGING STORAGE AND SHIPMENT 12 16 MAINTENANCE 12 ATTENTION 13 REPLACING THE MEASURING CONE 13 REMOVAL 13 INSTALLATION 13 17 RETURNING DEVICES FOR REPAIR AND SERVICE 15 18 DECO...

Page 4: ...avail able 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 fre...

Page 5: ...the measuring tube scale with the upper edge or the indicator edge of the float ball 2 1 KDF 9 KDG 9 system design The meter consists of a conical measuring tube made of glass containing a float that...

Page 6: ...values with fully opened valve Restricted contact adjustment range contact only adjustable as minimum contact Measuring ranges water 20 C Measuring ranges air 1 013 bar abs 20 C Float st 1 4401 316L...

Page 7: ...hin 10 100 of the range 5 3 Repeatability Liquid Gas 1 0 FS E F A B option differential pressure regulator 1 5 2 5 FS within 10 100 of the range 5 4 Influence of ambient temperature none 5 5 Influence...

Page 8: ...Void float impact e g caused by solenoid valves as this is likely to damage the measuring section or float 6 2 Ambient conditions 6 2 1 Ambient temperature ranges 20 C to 100 C with limit switch 20 7...

Page 9: ...re regulators are not pressure reduction valves The measuring device consists of variable area flowmeter with control valve and mounted differential pressure regulator The flow amount will be adjusted...

Page 10: ...2 Dimension drawing KDF 9 KDG 9 A B with conn NPT F as regulator c w constant inlet pressure 7 3 Weights KDF 9 KDG 9 0 4 kg KDF 9 KDG 9 E F A B 0 8 kg 7 4 Materials Fitting connections setting valve...

Page 11: ...respect to the Pressure Equipment Directive 2014 68 EU the devices fall within the scope of appli cation of Article 4 Section 3 and need no CE mark in accordance with this directive Kobold Messring c...

Page 12: ...ts 14 2 Installation start up and operating personnel Only trained specialists authorized by the system operator may carry out the installation electrical instal lations start up maintenance and opera...

Page 13: ...brush and appropriate media When assembling and reinstalling the system always new gaskets have to be used Replacing the measuring cone Removal Close valve in front and behind the unit Close needle va...

Page 14: ...ng the life cycle This requires tightening of the thrust piece 1 Loosen thread pin 2 M4x8 with hexagon 2mm and remove valve knob 3 Tighten thrust piece 1 SW14 with a torque of 3 8 Nm 4 0 Nm Caution Va...

Page 15: ...dous materials Consequently all devices sent to us for repair must be free of any hazardous materials This also applies to possible hollow spaces and fissures in the devices If repair is necessary con...

Page 16: ...asured medium Since this measured medium is dangerous in water poisonous corrosive flammable we have checked that all hollow spaces of the device are free of these materials neutralized and flushed al...

Page 17: ...1 Special range on re quest on re quest KDF 92YY Gases Order Details Example KDG 9288 NV 0 00 0 Measuring range air Nl h Valve seat mm Pressure drop mbar Order no stainless steel Connection Gasket op...

Page 18: ...gnetic compatibility EMC Part 6 3 Generic standards Emis sion standard for residential commercial and light industrial environments EN 55011 2011 Industrial scientific and medical equipment Radio freq...

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