LELY ASTRONAUT A4 User Manual

5.1004.8641.0 B
Specifications 2-7
2.2.2.1 Water Specifications
The water quality worldwide differs from area to area. The water quality can have influence on the life
time of certain components (e.g. boiler, Pura) of the robots. Also the water used for the outside cleaning
of the robots could harm certain components (e.g. frame,) even if it is made of stainless steel.
Always use potable water (fresh tap water, not stored in a reservoir because of micro-
organism growth) for internal and external use (because of food safety).
Do not use distilled water, conductivity must be min. 100µS/cm — max. 500µS/cm.
The pH value must be 7.5 +/- 1.0.
The water used for the outside cleaning of the robot and inside (e.g. milking system) has to meet the
following minimum requirements.
Parameter
Unit
Specifications Rationale
Anions
Bromide (Br
-
) mg/l
<0.01
Fluoride (F
-
) mg/l
<1.5
Chloride (Cl
-
) mg/l
<150
<250 is acceptable in combination
with pH >7.5. Higher levels of
chloride or lower pH levels will
increase the occurrence of
corrosion of stainless steel
Active Chloride (ClO
-
) mg/l
<0.1
Is used by some treatment
systems. This increases corrosion
of stainless steel
Nitrite (NO
2
-
) mg/l
<3
Nitrate (NO
3
-
) mg/l
<50
Sulphate (SO
4
-
) mg/l
<500
Cations
Iron (Fe
2+
, Fe
3+
) mg/l
<0.2
in n o vato rs in agriculture

LELY ASTRONAUT A4 Specifications

General

Brand	LELY
Model	ASTRONAUT A4
Category	Robotics
Language	English