KROHNE BM 26 BASIC_ADVANCED EN - Manual (Page 30)

4
ELECTRICAL CONNECTIONS
30
BM 26 BASIC/ADVANCED
www.krohne.com 10/2012 - 4000347004 - HB BM26 Basic/Adv R04 en
4.3 Protection category
For the IP categories of the accessories for the device, refer to the table that follows:
Protection categories according to EN 60529
How to make sure that the electrical installation agrees with the protection category
• Make sure that the gaskets are not damaged.
• Make sure that the electrical cables are not damaged.
• Make sure that the electrical cables agree with the national electrical code.
• The cables are in a loop in front of the device 1 so water cannot enter the housing.
• Tighten the cable glands 2.
• Close unused cable glands with dummy plugs 3.
Equipment housing IP category
Analog transmitter
Non-Ex / Ex i (without indicator) 54
Non-Ex / Ex i (with indicator) 66
Limit switches
Non-Ex / Ex i 66
DANGER!
Make sure the cable gland is watertight.
Figure 4-6: Protection category