Hydronix HV04, Руководство пользователя

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Chapter 1 Introduction
Hydro-View User Guide HD0531 Rev 2.0.0 17
Ensure that only fuses of the correct type and rating are fitted.
Ensure that the Hydro-View is mounted in an environment that will not cause electrical
interference.
3.3
Explanation of Symbols and Markings
It is important to understand the meaning of the various symbols and markings on the Hydro-
View equipment as follows:
Caution – risk of electric shock.
Caution – refer to accompanying documents.
3.4
Clearance Requirements
It is important to ensure that the Hydro-View has adequate clearance for ventilation and
access. The USB socket should be easily accessible.
The minimum clearance for the top and sides of the enclosure is 50mm. It may be necessary
to allow more space at the side to allow access to the USB socket.
3.5
IP Rating
When correctly integrated into a suitable enclosure, the front panel and touch screen are
designed to be rated to Ingression Protection (IP) rating IP66. This has the American
equivalent NEMA 4.
This IP/NEMA rating is only applicable if the unit is installed in accordance with the
mechanical mounting procedures detailed in Chapter 2 of this Document.
3.6
Environmental Conditions
The range of environmental conditions for which the equipment has been designed are:
•
Indoor Use Only
•
Altitude up to 2000m
•
Temperature 0°C to 50°C (32°F to 122°F)
•
Maximum relative humidity 80% for temperatures up to 31 °C decreasing linearly to
50% relative humidity at 50 °C
•
Pollution Degree 3 (Electrical Equipment in industrial or farming areas, untreated
rooms and Boiler rooms)
3.7
Lightning Strikes
Consideration should be given to protecting the installation from damage caused by lightning
and similar electrical disturbances.
Many installations will be in situations that are particularly prone to damage by lightning, for
example:
•
Tropical Regions.
•
Long cable runs between the sensor and the control panel.
•
Tall, electrically conductive constructions (e.g. aggregate bins).