Wiring (Analog Output) - FlowLine EchoWave LG10 Series Manual

Wiring
Analog Output (4-20 mA): The analog output of the EchoWave
typical way to use this feature is to connect a positive supply to the (+) input terminal, a negative supply to the
(-) input terminal and to connect the current output out of the 420 (+) terminal. The device that accepts the 4-
20 mA current signal must reference the same negative supply listed above (see diagram below).
Sample Wiring Diagram
Diagram will change based upon
the sensor's configuration, use
WebCal™ to view appropriate
wiring diagram.
The cabling should be shielded and twisted to minimize EMI interference. Its shield should be connected at either
end and never connected at both ends. Typically 18 to 24 gauge wire is used in this application.
GENERAL NOTES FOR ELECTRICAL CONNECTIONS, USAGE AND SAFETY

Where personal safety or significant property damage can occur due to a spill, the installation must
have a redundant backup safety system installed.

Wiring should always be completed by a licensed electrician.

Protect the sensor from excessive electrical spikes by isolating the power, whenever possible.

Supply voltage should never exceed 30 VDC.

Make sure that the power supply does not have a current more than 2A or that there is 2A rated fuse
in the electrical circuit that energizes the device.

The sensor materials must be chemically compatible with the liquids to be measured.

Design a fail-safe system for possible sensor and/or power failure.

Never use the sensor in environments classified as hazardous.
MN300840 REV A8
®
is a sourced 4-20 mA control circuit. The
Section Four
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