QS204210 Rev C
11
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Typical Wiring Diagram
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.
•
Wiring should always be completed by a licensed electrician.
•
The sensor supply voltage should never exceed 28 VDC.
•
Do not exceed 28 VDC (28 VDC/VAC for DS14 series only) power on the sensor relays.
•
Always use stepper relays between the sensor and external loads. For DC circuits use a catch diode
such as 1N4148 shown above.
•
Protect the sensor from electrical spikes by isolating the power.
•
The sensor must be chemically compatible with the application.
•
Design a fail-safe system for possible sensor and/or power failure.
•
Never use the sensor in environments classified as hazardous.
Sample Wiring Diagram
The diagram will change based
upon the sensor’s configuration.
Use WebCal
®
to view appropriate
wiring diagram.
