Thermo Scientific 180 Series, Руководство по эксплуатации и техническому обслуживанию

Страница: 21 / 36

Be sure to check pH regularly. If pH is <6.0, add disodium phosphate to
increase pH to a 7 to 9 value. Sodium carbonate or sodium bicarbonate
may be used but tend to form scale which must be rinsed out regularly. If
pH is >10.0 add sodium bisulfate to decrease pH to a 7 to 9 value. Avoid
adding harsh alkalines or acids since they may cause localized corrosion
and result in unstable pH.
These additives are permissible to use as long as the pH of the aqueous
solution is kept within the range of 7 to 9. Some of these are available
through your supply dealer. Be sure they are not harmful to stainless steel.
Additives commonly available for use in swimming pools and spas may be
acceptable in circulating baths only. In static baths, these are generally not
effective. This is why it is best to use distilled, deionized or RO water
treated as described in "WATER" above. If scale buildup is detected
(especially around immersion heaters), clean the bath and replace water as
soon as practical.
Proper maintenance of the stainless steel bath chamber will help assure
many years of service.
It should be cleaned regularly with mild soapy water and rinsed with
distilled water.
Important If it is necessary to use the following chemicals, limit the
exposure time to a maximum of four hours. Clean surfaces immediately
after use by rinsing with distilled water.
Aluminum Chloride Barium Chloride
Bichloride of Mercury Calcium Chloride
Carbolic Acid Chlorinated Lime
Citric Acid (boiling) Dakin's Solution
Ferrous Chloride Mercury Salts
Lysol Mercuric Chloride Phenol
Potassium Permanganate Stannous Chloride
Sodium Hypochlorite Tartaric Acid
Potassium Thiocyanate Lysol
6-2 GP Water Baths Thermo Scientific
Section 6
Maintenance
pH Control
Anti-Fungal -- Anti-
Bacterial Additives
Prevention of Scale
Build-up
Other Water Additives