V 1.2Revised 10/20Gravity™ Analog isolator
Written by Jordan Press Designed by Noah PressThis is an evolving document, check back for updates.
Gravity dimensions
Current consumption
23mA5V | 15.7mA3.3V | 5V | 3.3V |
Gravity™ Analog pH | 26mA | 18.7mA | |
Gravity ™ Analog ORP | 26mA | 18.7mA | |
Gravity™ Analog D.O. | 26mA | 18.7mA |
Connection pins
The Gravity™Analog Isolator mates with Atlas Scientific Gravity™Analog Sensors / Meters through their 3 pin headers.
Wiring diagram
Analog isolationIsolating an analog signal is a challenging task, there is no single component that can do this. The Gravity™ Analog Isolator uses three components to achieve this, a voltage isolator, a PWM generator, and an Opto-isolator. The Voltage Isolator is needed to supply the Gravity™sensor. The PWM generator converts an analog signal to a square wave, which can then pass through the Opto-isolator.
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