Environmental Conditions; Electromagnetic Compatibility - Mettler Toledo WKR204C-S Benutzerhandbuch

– Mainboard
– Connector board
Declaration of conformity
•
User Manual
•
Immediately inform your METTLER TOLEDO representative if you have any complaints or parts are
missing.
4 Operation
4.1 Electrical connections
WK weighing kits have an RS232C interface for the communication with the control systems.
Interface descriptions
Interface type
Interface update rate (max.)
Power supply for the weighing kit
Input voltage
Input current
Use a stable power supply with no voltage fluctuations.
•
If voltage fluctuations cannot be prevented, use a voltage regulator to deliver a constant voltage
•
value to the load cell.
The power supply must be approved by the respective national test center of the country in which
•
the weighing kit will be used.

4.2 Environmental conditions

WK weighing kits can be operated within the following environmental conditions:
Temperature Range
Relative air humidity
Height above mean sea level

4.3 Electromagnetic compatibility

Weighing kits complies with 2006/95/EC LVD only. The weighing kit must not be put into service
until the equipment/system into which it is to be incorporated has been declared in conformity with
the provisions of the directive. Electromagnetic compatibility has to be ensured by the user by
building an appropriate housing for the open electronic components.
6
RS232C, bidirectional, full duplex, 600 to 38'400 bps
23 weight values per second
12 V DC nominal
0.84 ADC
Operating /
Compensated
Allowable ambient
+10 ... +30 °C
+5 ... +40 °C
15% - 80% non-condensing
Max. 4'000 m (13'330 ft)
Weighing Kit