V 1.0 Released 3/22 Gravity ™ Analog Temperature Sensor / Meter TP2 TP1 − + A GND Gravity RTD Meter V3.0 Range -100°C to 220°C PATENT PROTECTED Written by Jordan Press Designed by Noah Press This is an evolving document, check back for updates.
Gravity dimensions 56.2mm (2.2”) TP2 TP1 − + A 24mm (0.9”) 32mm (1.2”) GND Gravity RTD Meter V3.0 34mm (1.3”) 42mm (1.6”) Female SMA 22.3mm (0.8”) 11mm (0.4”) 6.2mm Ø (1/4”) 36UNS-2B Power consumption 5V = 0.9mA 3.3V = 0.9mA Absolute max ratings Parameter MIN TYP MAX Storage temperature -65 °C Operational temperature -40 °C 25 °C 50 °C VCC 3.3V 5V 5.
The Atlas Scientific Gravity™ Analog Temperature Sensor / Meter is a low-cost solution specifically designed for Students / education Proof of concept designs Moderate accuracy applications • • • Connection pins Connect – to GND TP2 − + A TP1 Connect + to 3.3V or 5V Connect to analog pin / ADC GND Gravity RTD Meter V3.0 Raspberry Pi ON Arduino 2 1 0 ) RX0 3 4 5 6 7 8 9 10 12 0 11 13 1 2 GND TX RX TM DIGITAL (PWM= Gravity RTD Meter V3.
Converting the analog signal into temperature The Atlas Scientific Gravity™ Analog RTD Sensor / Meter will output a voltage from 0V to 3.00V. Equation to convert voltage to temperature Tolerance +/- 1°C Gravity RTD Meter V3.0 GND − + A TP1 TP2 Gravity RTD Meter V3.0 GND TP2 TP1 − + A Temp Volts 100 25 0 -50 1.958 1.283 1.058 0.608 No probe = Unpredictable 4 Copyright © Atlas Scientific LLC r 0.
28.4 28.4 28.4 Gravity RTD Gravity Meter RTD V3.0 Meter V3.0 GND Gravity RTD Meter V3.0 GND − + A TP1 GND TP2 − + A TP1 − + A TP1 TP2 TP2 Accuracy Accuracy +/- 0.5 °C +/- 1 °C Life expectancy Life expectancy ~10 years ~ 1 year 5 Copyright © Atlas Scientific LLC r 0.
