MiniSpir
User manual
MINISPIR
User manual
Rev 1.9
page 9 of 18
Symbol
Description
Humidity limitation: indicates the range of humidity to which the medical device can be safely exposed
Pressure limitation: indicates the range of pressure to which the medical device can be safely exposed
1.4.2
(ESD) Electrostatic discharge sensitivity symbol
WARNING
Pins of connectors identified with the ESD warning symbol should not be touched and the connections should not be
made to these connectors unless ESD precautionary procedures are used.
Precautionary procedures are the following:
•
Environmental procedures as: air conditioning, humidification, conductive floor coverings, non-synthetic clothing
•
User procedures as: discharging one’s body to a large metal object, using wrist strap connected to earth.
It is recommended that all staff involved receive an explanation of the ESD warning symbol and training in ESD precautionary
procedures.
the electrostatic discharge is defined as an electric charge at rest. It is the sudden flow of electricity between two objects caused
by contact, an electrical short, or dielectric breakdown. ESD can be caused by a buildup of static electricity by tribocharging, or
by electrostatic induction. At lower relative humidity, as the environment is drier, charge generation will increase significantly.
Common plastics generally will create the greatest static charges.
Typical electrostatic voltage values:
Walking across a carpet
1.500
– 35.000 volts
Walking over untreated vinyl floor
250
– 12.000 volts
Vinyl envelope used for work instructions
600
– 7.000 volts
Worker at a bench
700
– 6.000 volts
If two items are at different electrostatic charge levels, as they approach one another, a spark or Electrostatic Discharge (ESD)
can occur. This rapid, spontaneous transfer of electrostatic charge can generate heat and melt circuitry in electronic components.
A latent defect can occur when an ESD sensitive item is exposed to an ESD event and is partially degraded. It may continue to
perform its intended function, so may not be detected by normal inspection. Intermittent or permanent failures may occur at a later
time.
Static dissipative material will allow the transfer of charge to ground or to other conductive objects. The transfer of charge from a
static dissipative material will generally take longer than from a conductive material of equivalent size. Some well known insulators
are common plastics, and glass. An insulator will hold the charge and cannot be grounded and conduct. the charge away.
Both conductors and insulators may become charged with static electricity and discharge. Grounding is a very effective ESD
control tool, however, only conductors (conductive or dissipative) can be grounded.
The fundamental ESD control principles are:
•
Ground all conductors including people
•
Remove insulators, substitute with ESD protective versions
•
neutralize with ionizers
•
ESDS outside the EPA (ESD protected area) to be in packaging having ESD shielding property
1.5
Product description
MiniSpir
is a spirometer spirometer that can also features a pulse oximeter feature (optional), and is connected to a Personal
Computer using a USB cable.
The device measures a range of respiratory parameters, and the saturation of oxygen in the blood and the heart beat.