Kobold Heinrichs K09, Operating Instructions Manual

Page: 21 / 28

Heinrichs Messtechnik GmbH
Operating Manual K09
Page 21 of 28
18 Maintenance
If you use the meter in the intended manner no special maintenance is required. However, the variable area
flow meter should be checked in the context of the routine maintenance of the facility and the pipelines. Special
attention should be paid to dirt, corrosion denudation, mechanical wear as well damage to the glass cone. We
recommend checking the meter once a year.
In the recurrent pressure test of the system, the maximum allowed pressure test PT (see rating plate) must not
be exceeded.
Attention!
Should it become necessary due to contamination to clean the float or the measuring cone, please observe the
following precautions:

Before removing a device, make sure that the pipe line is empty (no product residues) depressurized
and has cooled down.

For devices that are used to measure corrosive or hazardous media, appropriate security precautions
must be taken regarding any remaining liquid in the measuring unit.

Avoid electrostatic charging of surfaces when cleaning non-conductive surfaces (e.g. protective hood).
Use a damp cloth.

Having dismantled the device, dirt or impurities on the inside of glass measuring cones should be
gently cleaned with a brush and appropriate media.
 When assembling and reinstalling the system new gaskets must always be used.
18.1 Replacing the measuring cone
Images depicting the disassembly and assembly of the device can be found on page 22 in section 18.1.3
18.1.1 Removal:
 Close valve in front and behind the unit
 Close needle valve of the device

Shift protective cover upwards and remove to the front.

By turning the adjusting ring at the unit base counter clockwise, the measuring glass can be loosened
and removed to the front.
18.1.2 Installation:
The assembly is performed in the reverse order to the disassembly

The measuring glass is fixed in place by first clamping the adjusting ring on the unit base hand tight.

With a 3 mm pin the clamping ring is fixed by 4x, max. 5x for each 120° turns clockwise.

The torque should be max 2, 8 to 3 Nm.
 Caution! To avoid breaking the glass measuring tube it is essential to ensure it is installed centric
between the seals.

Before re-commissioning the tightness of the measuring device is to be checked with suitable means.