ABB MAG-SM Instruction Bulletin page 12

Electromagnetic Flowmeter Converter
≥ 20" (DN 500)
Supply
Power
Signal Cable
(FP)
L
L
N
*)
Terminal Designation
1S + 2S (U+/U-)
*) M1 + M3
*) L + N
Fig.5 Connection Box Flowmeter Primary
6
16 3A 3 2 1
Connection
1 + 2 Flow signal leads
Flow signal lead shields ( ) Preamplifier supply voltage
16 Reference voltage lead
3A Reference voltage lead shield
3 Inner cable shield (copper) common
Magnetic field excitation connections (from converter)
For ≥20" (DN 500) Supply power see Instrument Tag
14" – 16" (DN 350 – DN 400) Standard Design
M1 M3
Rx
Connection Box with Preamplifier
for Fluids with Low Conductivity ≥ 0.5 µS/cm
16 3a 3 2 1
E2
R905
R906
R904
Spule1 Spule2
R903
E1
R2
R1
ws ws
M1 M2