3.7.1.2.
21BcFMus
3.7.1.2.1.
Connection of EB per ANSI/NFPA 70, Article 504, and ANSI/IA RP 12.06.01 or Canadian Electric Code C22.2
It must be ensured that the housings of all devices are connected to the same potential via the EB
terminals. No circulating current may flow via the shielding of the intrinsically safe cables.
3.8.
PCB Switch Settings
PCB switch settings for the IND560x Main board are described in this section.
3.8.1.
Main PCB Switches
Four switches are located on the main PCB. as shown in Figure 3-46. Functions of the switches are
listed in Table 3-20.
Switch
SW1-
1
SW1-
2
SW2-
1
SW2-
2
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METTLER TOLEDO IND560x Installation Manual
Figure 3-46: SW1 (left) and SW2 (right) Locations
Table 3-20: Main PCB Switches Functions
Metrology Security Switch (legal for trade)
When in the ON position, this switch
prohibits changes to metrologically
significant areas in the menu tree
Flash Software
Set in the ON position during software
download
Set in the OFF position during normal
operation
Factory test
Set in the OFF position at all times for
normal weighing. This switch must be ON
when connecting to the InSite™ CSL
program using the COM1 serial port of the
IND560x terminal.
Factory test
Set in the OFF position at all times
Functions
When both SW1-1 and SW1-2 are set
to ON and power is cycled, a Master
Reset is performed. Metrologically
significant data is not reset unless SW2-
1 is also set to ON.
When a Master Reset is performed, set
SW2-1 to ON to reset metrologically
significant data, such as scale
calibration, GEO code, etc.
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