Safety And Technical Information; Esd Protective Measures; About The Physics Of Electrostatic Charges - Sirona DAC Universal User Manual

Warning Symbols
Purpose of this manual
The purpose of this manual is to provide the user with sufficient information about the DAC UNIVERSAL in order to use it
effectively in the dental clinic immediately after delivery. We recommend that you study appendix 1 thoroughly before using
the DAC UNIVERSAL the first time. In this way you will have a better understanding of how the DAC UNIVERSAL
functions.
It is not allowed to use the DAC UNIVERSAL in another way than described in this instruction for use.

1.1 Safety and technical Information

1.1.1 ESD protective measures

ESD stands for ElectroStatic Discharge.
CAUTION: Connector pins or sockets bearing ESD warning labels must not be touched or interconnected
without ESD protective measures.
ESD protective measures include:
Procedures for preventing electrostatic charge build-up (e.g. air conditioning, air moistening, conductive
floor coverings and non-synthetic clothing)
Discharging the electrostatic charges of your own body on the frame of the
wire or large metallic objects
Connecting yourself to ground using a wrist band.
We therefore recommend that all persons working with this system be instructed on the significance of
this warning label. Furthermore, they also should receive training in the physics of electrostatic
discharges which can occur in the practice and the destruction of electronic components which may
result if such components are touched by electrostatically charged USERS.

1.1.2 About the physics of electrostatic charges

ESD stands for ElectroStatic Discharge. Electrostatic discharge must be preceded by electrostatic charging.
Static electric charges generally build up whenever two bodies are rubbed against each other, e.g. when
walking (shoe soles against the floor) or driving a vehicle (tires against the street pavement). The amount
of charge depends on several factors:
Thus the charge is higher in an environment with low air humidity than in one with high air humidity; it is
also higher with synthetic materials than with natural materials (clothing, floor coverings).
The following rule of thumb can be applied to assess the transient voltages resulting from an electrostatic discharge.
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DAC UNIVERSAL – USER MANUAL
729050 - Version 16 S
Be aware of high voltage
Be aware of heat
Warning
Placed on the back plate of the DAC UNIVERSAL next to the:
- COM PORT: External computing devices connected to communication interface port
marked "COM of the equipment has to comply with the standards, UL 1950 and IEC/EN
60950 and only connected to SELV circuits"
Please read the section regarding reports. See section 2.2.1 and section 5.
- Connections for water, air and drain: Please read the section regarding how to
install the DAC UNIVERSAL. See section 2.2.
, the protective ground
UNIT
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D3472.201.01.09.02