Welch Allyn GS 777, Directions For Use Manual

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42 Directions for Use Welch Allyn
minimum of 30 seconds, repeat the above
steps for a second reading.
Specifications
The Welch Allyn aneroid sphygmomanometer is
accurate to ± 3 mm Hg.
This product will maintain the safety and
performance characteristics specified at
temperatures ranging from 10 °C to 40 °C at a
relative humidity level not to exceed 90%.
Standards
• American National Standard ANSI/AAMI, SP10:
2002, Manual, electronic, or automated
sphygmomanometers.
• European Standard EN 1060-1: 1995, Non-
invasive sphygmomanometers-Part 1: General
Requirements.
• European Standard EN 1060-2: 1996, Non-
invasive sphygmomanometers-Part 2: General
Requirements.
• Meets the technical requirements of INMETRO
Technical Metrological Regulation Number 24 of
February 26, 1996.
Maintenance
Cleaning
Aneroid Gauge, Inflation Bulb, and Valve: Wipe the
aneroid gauge, inflation bulb, and valve with
slightly dampened cloth or alcohol pad.
Reusable One-Piece Blood Pressure Cuff: Use
one or more of the following methods and allow to
air dry:
• Wipe with mild detergent and water solution (1:9
solution). Rinse.
• Wipe with Enzol per manufacturer’s instructions.
Rinse.
• Wipe with 0.5% bleach and water solution. Rinse.
• Wipe with 70% isopropyl alcohol.
• Launder with mild detergent in warm water (60 °C
max), normal wash cycle. Cuff is compatible with
5 wash cycles (Reusable only). Close port cuff
with laundering plug (part no. 5082-159).
Two-Piece Cuff and Bladder: Safely clean the
cuffs with a damp cloth or wash in warm water (60°
C maximum) with mild detergent. DO NOT PRESS
WITH HOT IRON.
Before laundering the cuff:
1. Remove the bladder from the two-piece cuff.
2. Place the hook and loop fasteners in the
closed position.
3. Machine launder using gentle cycle, warm
water and mild detergent.
4. Air dry completely and reassemble
components.
Low-level disinfection procedure (FlexiPort TM
Reusable cuffs only):
Prepare Enzol® enzymatic detergent according to
manufacturer's instructions. Apply port-cap
(accessory part 5082-159) to cuff. Spray detergent
solution liberally onto cuff and use a sterile brush to
agitate the detergent solution over entire cuff
surface for five minutes. Rinse continuously with
distilled water for five minutes. To disinfect, first
follow the cleaning steps above, then spray cuff
with 10% bleach solution until saturated, agitate
with a sterile brush over entire cuff surface for five
minutes. Rinse continuously with distilled water for
five minutes. Wipe off excess water with sterile
cloth and allow cuff to air dry.
Calibration Check of Aneroid
Sphygmomanometer
Quick Check of Calibration:
At zero pressure, make certain the pointer is within
the oval surrounding the zero-pressure gradation
on the dial.
Although an unpressurized reading of zero does
not guarantee accuracy at all scale points, failure
of the pointer to indicate zero (± 3 mm Hg) is an
obvious sign of error.
Full Check of Calibration:
Welch Allyn recommends a full check of calibration
at least every two years or according to local law
and after maintenance and repair use the following
procedure.
1. Connect the instrument under test to a high
quality, known pressure standard and a 150 to
500 cc test volume using a T-connector.
2. Pressurize gauge to slightly above
300 mm Hg.
3. Bleed pressure down no faster than 10 mm Hg
per second, stopping to check the pressure at