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OPERATION AND MEASUREMENT

Connect the sensor to a measurement device (meter, datalogger, controller) capable of measuring and displaying

or recording a millivolt signal (an input measurement range of approximately 0-2.5 V (SQ-612) or 0-5 V (SQ-615) is

required to cover the entire range of ePAR from the sun). To maximize measurement resolution and signal-to-

noise ratio, the input range of the measurement device should closely match the output range of the ePAR sensor.

DO NOT connect the sensor to a power source greater than 24 V DC.

Wiring for SQ-612 and SQ-615

White: Positive (signal from sensor)

Red: Input power (SQ-612 5-24 V DC, SQ-615 5.5-

24 V DC)

Black: Ground (for sensor signal and input power)

Clear: Shield/Ground