Karcher HKF 200 K2 User Manual

Page 25

Areas that bear the risk of explosion are di-
vided into zones, according to the frequen-
cy and duration of explosion-risk
atmosphere in BetrSichV and EN 1127-1.
The definition of the zones lies in the re-
sponsibility of the operator.
Tips for zoning are included in the Be-
trSichV, EN 1127-1, BGR 104 – Ex-guide-
line of BG Chemie and in the EN 60079-10.

–

Zone 0
Zone 0 is an area where dangerous ex-
plosion-risk atmosphere is present as a
mixture of air and flammable gases, va-
pors or mists at all times, across long
time periods or frequently.

–

Zone 1
Zone 1 is an area where (during normal
operation) dangerous explosion-risk at-
mosphere is present as a mixture of air
and flammable gases, vapors or mists
from time to time.

–

Zone 2
Zone 2 is an area where (during normal
operation) dangerous explosion-risk at-
mosphere as a mixture of air and flam-
mable gases, vapors or mists is not
normally present and if present, only for
a short time.

Danger

If there is a risk of dust, the container to be
cleaned must be steamed accordingly!

1 The interior cleaner must only be used

in Zone 0 if the containers are at least 3
m in diameter with the usual container
height or do not exceed a comparable
container size.

2 The mass content of non-diluted solid

substances in the cleaning liquid must
not exceed 1%.

3 The interior cleaner must be ground

electro-statically.

4 The pump for the cleaning liquid must

only be operated while it is filled with flu-
id.

5 When cleaning by water streams, you

must use working pressures up to 20
MPa (200 bar) and liquid throughputs of
less than 18,000 l/h (5 l/s), if the con-
tainers do not exceed a diameter of 3 m
with a typical container height or a com-
parable container size.

6 The compressed air motor must only be

operated once the interior cleaner has
been filled with cleaning liquid.

7 The speed of the cleaning head must

not exceed 40 rpm.

8 The operating temperature of the clean-

ing liquid water with cleaning agents
must not must not exceed 95 °C.

9 The operating temperature of the clean-

ing liquids, brines and acids must not
must not exceed 20 °C.

10 The interior cleaner must be checked

for flawless condition and smooth func-
tion after a certain operating time has
passed (incl. drive motor for its concen-
trical position in relation to the gland,
bearing bushings and drive-side seal
for wear and tear and leakage). If appli-
cable, a repair needs to be conducted.

11 The interior cleaner must only be used

with cleaning liquids and in such media,
whose affect on the materials is not
damaging.

12 Cleaning liquids that contain flammable

solvent particles, must comply with the
ignition groups IIA and IIB. Solvents of
the ignition group IIC must not be
sprayed.

13 The interior cleaner must not be con-

stantly located in Zone 0, but only dur-
ing the actual container cleaning. The
operating guidelines as per BetrSichV
as well as other national guidelines
must be adhered to. Take into consider-
ation, that the mixture of the container/
interior cleaner brought into the con-
tainer is not resistant to breakdown
from flames.

14 Hoses must be conductive (electrostat-

ically) (resistance R < 1000000 Ohm).

15 Only cleaning agents with a conductivi-

ty G > 1000 pS/m may be used.

16 All parts that touch media must be con-

nected to the grounding system.

Basically, the tank to be cleaned must be
completely emptied.


HKF 200 K2 SO (3.631-054)
Standard model



HKF 200 K2 SR (3.631-056)
Acid and brine model, free of coloured
metals.

Only the products listed in Chapter "Clean-
ing processes" must be cleaned using the
cleaning sequences listed there.
Note: The chapter "Specifications" con-
tains a list of the permitted cleaning liquids.

Zone layout

Special conditions in the Ex area

Durability against acids and brines