KROHNE BM 102 Handbook User Manual
Page 19
BM
102
19
2.1.3 Wiring connections: M16 terminal box
Power terminals:
Wire cross-section: max. 1.5 mm² (AWG 16)
Cable entry:
1 x M16 x 1.5, cable diameter: 3.5 … 8 mm (0.14 … 0.31”), IP 65
for USA: ½” NPT conduit connection
Shielding:
Do not connect shielding to the terminal compartment.
Hazardous-duty systems
When used in hazardous areas, only one intrinsically safe power supply may be
connected to terminals 1 and 2. Ground terminal E is not connected.
Caution
Ground terminal, E, is not connected to the signal converter housing or to the device
flange. To avoid ground current loops, the cable shielding may not be connected at
both ends.
1
Detach the 4 screws, T, and remove cover from terminal
compartment.
2
Connect the cable ends, fitted with ferrules, to the power
terminal, U (not polarity sensitive).
3
Shut the terminal compartment.
2.1.4 ’Ex’ equalizing conductor
Refer to the BM 102 MICROFLEX KEMA 00 ATEX 1101X Supplementary Installation and
Operating Instructions for further information.
Terminal for equipotential bonding
U-clamp terminal,
max. conductor cross-section:
4 mm²/6.2 • 10-3 sq.in. on ’neck’ of signal
converter