2.8 Safety
The transmitter delivered to you has been tested for safety and approved as shipped from the
factory. Note the following precautions:
Do not modify the unit or use it in ways not described in the
documentation. Improper modification may lead to safety hazards, equipment
damage, failure to perform according to specification, or decreased equipment
lifetime.
CAUTION!
2.8.1 ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits.
Vaisala products are adequately protected against ESD for their intended use. It is possible to
damage the product, however, by delivering electrostatic discharges when touching,
removing, or inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
• Handle ESD sensitive components on a properly grounded and protected ESD workbench.
• When an ESD workbench is not available, ground yourself to the equipment chassis with a
wrist strap and a resistive connection cord.
• If you are unable to take either of the above precautions, touch a conductive part of the
equipment chassis with your other hand before touching ESD sensitive components.
• Always hold component boards by the edges and avoid touching the component
contacts.
2.9
Regulatory Compliances
Vaisala HUMICAPâ Humidity and Temperature Transmitter Series HMT120 is in conformity with
the provisions of the following EU directives:
• EMC-Directive (2004/108/EC)
Conformity is shown by compliance with the following standards:
• EN 61326-1: Electrical equipment for measurement, control and laboratory use – EMC
requirements – for use in industrial locations.
• EN 55022 + Am1: Information technology equipment – Radio disturbance characteristics –
Limits and methods of measurement.
HMT120 User Guide M211244EN-C
12
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