GReTA
–
Installation manual
LSI LASTEM SRL
INSTUM_04546_en
Pag. 4 / 10
1
Safety requirements
Leggere le seguenti norme di sicurezza generali per evitare lesioni personali e prevenire danni al prodotto o
ad eventuali altri prodotti ad esso connessi. Per evitare possibili danni, utilizzare questo prodotto unicamente
nel modo in cui viene specificato.
1.1
General requirements
Only qualified service staff shall be authorized to carry out installation and maintenance procedures.
Install the tool in a clean, dry and safe place.
Humidity, dust and extreme temperatures tend to deteriorate
or damage the instrument. In such environments it’s recommended to install inside suitable containers.
Power the instrument appropriately.
Respect the supply voltages indicated for the instrument model
owned.
Make the connections appropriately.
Carefully follow the connection schemes provided with the instrumen-
tation.
Do not use the product if you suspect the presence of malfunctions.
If a malfunction is suspected, do not
power the instrument and ask for the intervention of qualified service staff.
Before any operation on electrical connections, power, sensors and communication equipment:
•
Turn off the power.
•
Discharge the accumulated electrostatic charges by touching a conductor or a grounded system.
Do not operate the product in presence of water or moisture
.
Do not operate the product in an explosive atmosphere
.
Lithium-ion battery inside.
Replacing the battery with an incorrect type can cause risk of explosion.
1.2
Specific requirements
The large heatsink protruding from the front of the
SDU
module is used to remove the high temperatures
produced by the power circuits performing current injection. The temperature of this heatsink is normally
less than 60 °C, but this depends on the conditions in which the instrument operates and the injection set-
tings, as well as the conditions of the soil and could exceed even 80 °C, therefore be careful not to touch it
during the functioning of the system.
The very same SDU unit is responsible for the ignition of high voltage circuits (200 Vcc) through the PWR unit;
the ignition of this section of power occurs only during measurement operations; in this case the presence
of high voltage is reported at several points:
•
HV
alert on the top of the
SDU
module.
•
Green lights for each of the 4 power sections, at the bottom right corner of the box.