ABB SensyMaster FMT430 - Flowmeter Sensor

68 SensyMaster FMT430, FMT450 THERMAL MASS FLOWMETER | OI/FMT430/450-EN REV. B
… 7 Electrical connections
… Connection to remote mount design
Flowmeter sensor
A
Signal cable from the sensor
1
Terminal for potential equalization
2
Terminals for signal cable
Figure 62: Connection to sensor in remote mount design (example)
NOTICE
If the O-ring gasket is seated incorrectly or damaged, this
may have an adverse effect on the housing protection class.
Follow the instructions in Opening and closing the housing
on page 47 to open and close the housing safely.
Terminal
ABB signal cable
3KQZ407123U0100
HELKAMA signal cable
20522
GND
Blue
Blue (4)
U
FE
White
white (3)
A
Yellow
Blue (2)
B
Orange
white (1)
Observe the following points when connecting to an electrical
supply:
• Lead the signal cable into the housing as shown.
• Connect the cables in accordance with the electrical
connection. If present, connect the cable shielding to the
earthing clamp provided.
• Use wire end ferrules when connecting.
• From an ambient temperature of T
amb.
≥ 60 °C (≥ 140 °F)
additionally insulate the wires with the enclosed silicone
hoses.
• Close unused cable entries using suited plugs.