Rhima DEKO 25iX, Operator'S Manual

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Should purified water be required for the process, in addition to the direct supply of potable
water, the machine can be equipped with an additional solenoid valve, and in case of a non-
pressurised supply, also with an extra feed pump. In order to ensure freedom from microbial
contamination, rinse water used in a possible final rinse after disinfection shall be treated as
required. For testing the water quality please see EN ISO 15883-1 Chapter 6.4.
Quality of water used in the type tests
For reference, the quality of water used in the process, excluding any final rinse after disinfection,
the following values were determined during the microbiological type tests:
Conductivity: 16, 4 mS/m
PH: 8,1
Ox disables substances (Red ox potential): UH 482 mV
Total hardness (Salts of Ca
2+
, Mg
2+
, Sr
2+
expressed as mmol CaCO
3
): 0,59 mmol/l
Total dissolved solids (TDS) determined as evaporative residue: 96 mg/l
5.5 Requirements on detergent in Deko washer-disinfectors
1. Use only liquid detergents.
2. The detergent must be non-foaming. Even a small amount of foam will substantially
decrease the cleaning effect.
In case there is plenty of foam in the system the machine is unable to clean
the goods and automatic foam removal control will start.
3. The liquid must be free of particles so that nozzles or detergent pump valves
will not block.
4. Normally detergents being used are highly alkaline. PH-value is
between 10 and 14.
A strongly alkaline liquid will corrode aluminium and its colouring.
Please use special washing agents for aluminium items.
The detergents are powerful and must be handled with care.
In case of accidental contact with the skin or clothing wash immediately
with clean water. For eyes, seek immediate medical attention.
5. Recommended dosage is normally 2-5 g/l.
The used concentration of detergent is related to
- The degree of water hardness
- The degree of uncleanness
- The water temperature
Usually washing temperature should be approx. +50...60
0
C,
With blood washing temperature is lower.
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