MiniSpir Light
User manual
MINISPIR LIGHT User manual
Rev 1.7
page 8 di 13
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 Light
is a spirometer, and is connected to a Personal Computer using a USB cable.
The device measures a range of respiratory parameters,.
The main features of this multipurpose
MiniSpir Light
make it is easy to use and versatile.
Spirometry function
MiniSpir Light
calculates 10 functional respiratory parameters, as well as the parameter comparison after the administration of
a drug (PRE/POST) for a bronchodilator test or for a bronchial challenge test. A comparison of data is made between POST (after-
drug) and PRE (before drug administration). The Pre test data relates to percentage variations between the measured results and
the predicted values based on the anthropometric data inserted. The POST session is available only on the
MiniSpir Light
BD
version.
The flow and volume measurement sensor is a digital turbine, based on the infrared interruption principal, which ensures accuracy
in time as required from a professional device.
The special features of this kind of sensor are listed below:
•
Accurate measurement even at very low flow rates (end of expiration)
•
Not affected by gas humidity nor density
•
Shockproof and unbreakable
