DATREND Systems vPad-IV, Operating Manual

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vPad-IV OPERATORS MANUAL
5.3 Routine Cleaning
Each vPad-IV Module should be cleaned once a month when used with tap water, or once every four to six
months when used with bottled drinking water or distilled water respectively. These recommendations apply
to instruments which remain set up and primed at all times. If vPad-IV spends much of its time dry and in
storage, cleaning should be conducted more frequently, ideally when dry Modules are primed for the first
time during the initial setup (see Section 3.5.4 on page 20). Cleaning after a period of dry storage is the
preferred method of "wetting" the fluid system prior to use (see Section 3.5.5 on page 22).
In the event vPad-IV is accidentally contaminated with dextrose, TPN solution or other incompatible fluid,
the routine cleaning procedure described below should be adequate, provided such cleaning is performed
immediately following the contamination. If repeated cleaning does not appear to improve test results, then
refer to additional information in Section 5.4.
5.3.1 Cleaning Solutions
Cleaning solutions which are compatible with vPad-IV are listed below, ranked in terms of their relative
effectiveness. The most effective cleaners for vPad-IV are strongly alkaline and have hydrophillic or water-
attracting characteristics. Use only the cleaning agents specified below as others may have unintended side
effects on operation of the instrument, or may cause damage to internal plastic components.
Cleaning solution Rating Preparation
Micro-90® in water #1 Add 10 ml Micro-90® detergent to 190 ml distilled water. Mix gently to
avoid foaming. Note Micro-90 is manufactured by International Products
Corp. (www.ipcol.com) and is available in small quantities from Cole-
Parmer (www.coleparmer.com).
Ammonia and liquid
soap in water #2 Add 20 ml concentrated pure ammonia household cleaner to 180 ml
distilled water. Add 2 ml liquid dish soap (not dishwasher detergent) to
the solution. Mix gently to avoid foaming. Note hazard warning below.
Sudsy Ammonia™
in water #3 Where available, Sudsy Ammonia™ brand-name household cleaner
may be used as an alternative to cleaning solution #2. Prepare by gently
mixing 100 ml Sudsy Ammonia with 100 ml distilled water. Note hazard
warning below.
Commercially-available cleaners which contain ammonia, although intended for
home use, are
toxic
. Fumes may irritate eyes and nasal passages; direct contact may
irrate the skin. Use gloves and goggles when preparing and using cleaning
solutions that contain ammonia. In preparing a solution, always add liquid ammonia
to water, not the other way around. Never mix ammonia cleaners with bleach as the
combination will produce chlorine gas, which can be lethal.
Maintenance/Chapter 5
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