American Diagnostic Corporation (ADC) ADC Proper Maintenance - Manual (Page 2)

INTRODUCTION
Thank you for choosing an ADC DIAGNOSTIX ™ Mercury Sphygmomanometer. We’re
proud of the care and quality that goes into the manufacture of each and every
blood pressure instrument that bears our name.
Only the finest materials are used to assure you of a timeless instrument designed
for optimum, safe performance. You’ll quickly appreciate the results for you now
own the most intelligently designed, feature-rich mercurial sphygmomanometer that
money can buy.
With proper care and maintenance your ADC DIAGNOSTIX ™ Mercury Sphygmo -
manometer is sure to provide you with many years of dependable service. This brochure
answers the most frequently asked questions about these instruments, how to main-
tain them, and what to do in the unlikely event that a mercury spill should occur.
Please read this manual thoroughly and retain for future reference.
PREVENTIVE MAINTENANCE
Because the mercury units do not rely on moving parts such as metal bellows,
diaphragms, gears, or other sources of mechanical wear, only an occasional inspec-
tion of the instrument is recommended.
A regular program of preventive maintenance will extend the life of your sphyg-
momanometer. The program should include the following simple inspection steps:
1. The mercury level in the graduated plastic tube should be at the “0”
calibration mark with the inflation system disconnected and the mercury unit in
a vertical position.
Note: If the mercury level is below “0”, readings over the entire scale will vary only the
difference between the mercury level and the “0” calibration.
2. Airflow should be tested by partially inflating the instrument to observe the
rising column of mercury, and then slowly deflating - stopping the column at
several points - to observe the falling column.
The diaphragm filter should be replaced if the mercury does not rise easily in
the tube, or if the mercury column bounces noticeably.
Note: The diaphragm filter is designed to dampen oscillations of the mercury during
inflation and deflation while preventing escape of the mercury. If clogged due to
accidental over inflation, it may require replacement.
3. The graduated plastic tube should be clean. If it is streaked with mercury which
has oxidized, the tube and mercury should be cleaned as described in this booklet.
4. The inflation system, consisting of the ADCUFF ™ , inflation bladder, bulb, and
ADFLOW ™ valve can be tested for air leaks.
REPAIRING MERCURY LEAKS
If a mercury leak exists at the top or bottom of the plastic tube, the silicone rubber
washers, which provide a seat for the ends of the plastic tube, should be replaced.
Remove the cartridge tube. Then use a small screwdriver to remove the old silicone
rubber washers, and replace with correct size new washer. Replace the graduated
plastic tube.
If a mercury leak exists at the bottom of the reservoir, see the following section
“How to Clean or Replace Mercury,” which includes steps for replacement of the
reservoir gasket.
After a mercury leak has been repaired, check the level of the mercury meniscus (the
top rim of the mercury column in the plastic tube). If it is below the “0” calibration, add
enough mercury to bring it up to the correct level. This is done by unscrewing the
knurled chrome cap at the top of the plastic tube and pouring a small amount of
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with another twist tie or rubber band closure.
5. Place the double polybagged and wrapped unit inside the packing case,
or inner carton.
6. Arrange some cushioning bags or more bubble wrap around the mercurial
unit to protect it from excessive shifting.
7. If returning two or three mercurial units, repeat steps 1-6 as necessary. We
suggest packaging each of the mercurial units in separate inner cartons that
can fit into the packing case.
8. Seal the packing case closed with a strip of adhesive tape. Carefully place the
specially authorized return address label to the top of the box.
9. Ship via UPS Prepaid Ground Service ONLY. No other carriers are authorized
use for safe return of mercury instruments.
What is a Material Safety Data Sheet (MSDS)? Why do I need it and how do I
get one?
A MSDS sheet is required by OSHA. All medical locations require you keep it on
file. A MSDS provides you with information about mercury, and what protective mea-
sures you have to do for your safety. Your ADC dealer will provide you with the
MSDS upon request.
ADC PROBLEM SOLVING GUIDE
Questions or Comments Call Toll-Free
1-800-ADC-2670
www.adctoday.com
The information contained within this guide is provided in good faith and is believed
to be correct as of the date published. ADC makes no representation as to the com-
pleteness or accuracy of the information. It is understood that the person receiving this
information will use good judgement to determine proper actions to be taken. Infor-
mation contained within does not provide any warranties, expressed or implied.