KROHNE BM 26 BASIC_ADVANCED Quickstart EN - Manual (Page 16)

3
ELECTRICAL CONNECTIONS
16
BM 26 BASIC/ADVANCED
www.krohne.com 10/2012 - 4000346904 - QS BM 26 Basic-Adv R04 en
3.2 Optional limit switches
• Remove the terminal compartment cover.
• Connect the device to the electrical circuit. Obey the national electrical codes.
For more electrical data, refer to Technical data: optional limit switches on page 27.
Figure 3-4: Terminal compartment
1 Terminal compartment cover
2 Bistable reed switch
3 Output terminal
1 2 3
WARNING!
If the switch is set to LOW limit
LOW limit LOW limit LOW limit, make sure that switch is open open open open when the float is below the switch
position.
If the switch is set to HIGH limit
HIGH limit HIGH limit HIGH limit, make sure that switch is open open open open when the float is above the switch
position.
Figure 3-5: Electrical schema
1 Non-NAMUR version
2 NAMUR version