Steris AMSCO 400 Series, Руководство оператора

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5-20
P129394-020 Operator Manual Component Identification
5.12 Optional Electric
Steam Generator
If a building steam source is not available, the sterilizer may be
equipped with an electric steam generator. A generator
automatically converts water to steam using electric heat.
Electrically-heated steam then charges the sterilizer chamber.
All integral steam generators are equipped with an automatic flush
and drain mechanism, because steam generators are highly
susceptible to mineral scaling if the supplied water has any level of
hardness. Refer to
Table 5-1 for water quality requirements.
Important: Regardless of the hardness level of supplied water, the
generator must be flushed every day before use to prevent mineral
scaling or carryover of debris into the chamber.
ATTENTION: Warranty on this steam generator will be voided unless
daily flushing procedures are performed.
Table 5-1. Required Feed Water Quality for
Carbon-Steel Steam Generators
Condition
Nominal
Conditions
Maximum
Conditions
Temperature 40-140°F (4-60°C) 150°F (66°C)
Total Hardness as CaCO
3
*
* 17.1 ppm = 1.0 grain hardness
0-17 ppm 130 ppm
Total Dissolved Solids 50-150 ppm 250 ppm
Total Alkalinity as CaCO
3
50-100 ppm 180 ppm
pH 6.8-7.5 6.5-8.5
Total Silica 0.1 - 1.0 ppm 2.5 ppm
Resistivity -
Ω
·
cm
**
** WARNING – BURN HAZARD: Sterilizer operator may be severely burned by
scalding water if the water level control malfunctions. The steam generator level
control may malfunction if the supply water exceeds 26,000
Ω
·
cm
(38.5 micro-ohms, conductivity min.). Do not connect to treated water (e.g.,
distilled, reverse osmosis, deionized) unless water resistivity is determined to be
acceptable. If water exceeds 26,000
Ω
·
cm, contact STERIS Service Engineering
for information concerning modifications required to the generator control
system.
2000-6000 26000
Chlorides 1.0–8.0 ppm 10.0 ppm
Cu 0.0–0.08 ppm 0.1 ppm
Fe 0.0–0.08 ppm 0.1 ppm
Zn 0.0–0.08 ppm 0.1 ppm
Al 0.0–0.08 ppm 0.1 ppm
Mg 0.0–0.08 ppm 0.1 ppm