Dewetron DEWE2-M7s, Техническое справочное руководство

Страница: 8 / 28

Safety
8
Also consider the detailed technical reference manual as well as the security advices of the connected systems.
Electrical safety instructions
With this product, only use the power cable delivered or defined for the host country.
DO NOT connect or disconnect sensors, probes or test leads, as these parts are connected to a voltage supply unit.
The system is grounded via a protective conductor in the power supply cord. To avoid electric shocks, the protec -
tive conductor has to be connected with the ground of the power network. Before connecting the input or output
connectors of the system, make sure that there is a proper grounding to guarantee potential free usage. For coun -
tries, in which there is no proper grounding, refer to your local legally safety regulations for safety use.
DC systems: Every DC system has a grounding connected to the chassis (yellow/green safety banana plug).
Note the characteristics and indicators on the system to avoid fire or electric shocks. Before connecting the system,
carefully read and understand the corresponding specifications in the product manual.
The inputs are not, unless otherwise noted (CATx identification), for connecting to the main circuits of category II,
III and IV. The measurement category can be adjusted depending on module configuration.
The power cord or the main power switch separates the system from the power supply. Do not block the power
cord or main switch, since it has to be accessible for the users.
Any direct voltage output is protected with a fuse against short cut and reverse-polarity, but is NOT galvanically
isolated (except it is explicit marked on the system).
Supply overvoltage category is II.
The system must be connected and operated to an earthed wall socket at the AC mains power supply only (except
for DC systems).
DO NOT touch any exposed connectors or components if they are live wired. The use of metal bare wires is not
allowed. There is a risk of short cut and fire hazard.
The assembly of the system is equivalent to protection class I. For power supply, only the correct power socket of
the public power supply must be used, except the system is DC powered.
Be careful with voltages >25 VAC or >35 VDC. These voltages are already high enough in order to get a perilous
electric shock by touching the wiring.
Maximum input voltage for measuring cards are 70 VDC and 46.7 V
PEAK
The electrical installations and equipments in industrial facilities must be observed by the security regulations and
insurance institutions.
Ambient safety notices
This product is intended for use in industrial locations. As a result, this product may cause interference if used in
residential areas. Such use must be avoided unless the user takes special measures to reduce electromagnetic
emissions to prevent interferences to the reception of radio and television broadcasts.
Do not switch on the system after transporting it from a cold into a warm room and vice versa. The thereby created
condensation may damage your system. Acclimatise the system unpowered to room temperature.
Any use in wet rooms, outdoors or in adverse environmental condition is not allowed. Adverse environmental
conditions are:
– Moisture or high humidity
– Dust, flammable gases, fumes or dissolver
– Thunderstorm or thunderstorm conditions (except assembly PNA)
– Electrostatic fields etc.
DO NOT use the system in rooms with flammable gases, fumes or dust or in adverse environmental conditions.
Direct exposure of any DEWETRON product to strong sunlight or other heat radiation shall be prevented, as this