Apogee Instruments ST-100 Manuel du propriétaire - Page 12

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ST-300 PRT

Connect the sensor to a measurement device (meter, datalogger, controller) capable of inputting 2.1 V DC, and

measuring and displaying or recording a millivolt (mV) signal (an input measurement range of 16 to 27 mV is

required to cover the entire temperature range of the sensor). In order to maximize measurement resolution and

signal-to-noise ratio, the input range of the measurement device should closely match the output range of the

thermistor.

VERY IMPORTANT:

Apogee changed all wiring colors of our bare-lead sensors in March 2018. To ensure

proper connection to your data device, please note your serial number then use the appropriate wiring

configuration below.

Wiring for ST-300 Serial Numbers 1076 and above

Wiring for ST-300 Serial Numbers range 0-1075

White: High Side of Differential Channel 1

Black: Low Side of Differential Channel 1

Green: High Side of Differential Channel 2

Yellow: Analog Ground

Blue: Low Side of Differential Channel 2

Red: Excitation channel (excitation for PRT)

Clear: Shield/Ground

White: Analog Ground

Black: Low Side of Differential Channel 2

Green: Low Side of Differential Channel 1

Orange: PRT Excitation Channel

Blue: High Side of Differential Channel 1

Red: High Side of Differential Channel 2

Clear: Ground (shield wire)