Endress+Hauser Waterpilot FMX167, Руководство по эксплуатации

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Electrical connection Waterpilot FMX167
16 Hauser
5.2 Measuring unit electrical connection
5.2.1 Overvoltage protection
To protect the Waterpilot FMX167 and the TMT181 temperature head transmitter from
large interference voltage peaks, Hauser recommends installing external
overvoltage protection upstream and downstream of the display and/or evaluation unit as
shown in the graphic.
Overvoltage protection in accordance with EN 61000 (500 V symmetrical/1000 V
asymmetrical) is integrated in the Waterpilot FMX167 as standard.
A0018941
A Power supply, display and evaluation unit with one input for Pt100
B Power supply, display and evaluation unit with one input for 4 to 20 mA
C Power supply, display and evaluation unit with two inputs for 4 to 20 mA
1 Waterpilot FMX167
2 Connection for integrated Pt100 temperature sensor in the FMX167
3 4 to 20 mA (Temperature)
4 4 to 20 mA (Level)
5 Overvoltage protection (OP), e.g. HAW from Hauser (not for use in hazardous areas)
6 Power supply
5.3 Post-connection check
The following checks must be performed after completing electrical connection of the device:
• Does the supply voltage match the specifications on the nameplate?
• Is the device connected as described in Kap. 5.1 "Connecting the device"?
• Are all screws firmly tightened?
• Optional terminal box: are the cable glands leaktight?
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