DFRobot Gravity: Analog ORP Sensor Meter for Arduino | SEN0165

Description:

Analog ORP Meter is a highly compact ORP monitoring system that fits into your Arduino. This design configuration allows the user to accurately monitor ORP without having to add any additional circuitry or components to your design. Communication with the Analog ORP Meter is done using only simple wiring and programming.

ORP (Oxidation-Reduction Potential) is a measure of the ability of oxidation and reduction of the aqueous solution, characterization of oxidizing or reducing the relative degree. Unlike a pH measurement that follows a logarithmic curve and therefore requires more calibration adjustments, ORP follows a linear relationship and does not need instrument adjustment as much as it needs electrode maintenance. ORP has proven to be a reliable method of measuring water quality and provides the operator with a single value of measurement regardless of which product, commodity, operation, treatment, or sanitizer is used, and regardless of varying field conditions or methods by which chemical is applied.  

Attention：

The bottle cap of the probe contains protective liquid (3.3mol/L KCL). Even if the bottle cap is screwed tightly, some protective liquid may still leak around the bottle cap, forming white crystals. But as long as there is still protective liquid in the bottle cap, it will not affect the life and accuracy of the probe. So please use it with confidence. It is recommended that the white crystals be poured back into the protective liquid in the bottle cap.

Applications:

• Water Quality Testing

• Aquaculture

• Marine Science

• Hydroponic Gardening

• General Chemistry

Specifications:

• Module Power:+5.00V

• Module Size: 40mmX27mm(1.57"x1.06")

• Measuring Range:-2000mV—2000mV

• Suitable Temperature:5-70℃

• Accuracy:±10mv (25 ℃)

• Response Time:≤20sec

• ORP Probe with BNC Connector

• PH2.0 Interface(3 foot patch)

• Zero calibration button

• Power Indicator LED

Documents:

• Product WiKi

• Schematic

• ORP Meter PCB Layout

• Arduino sample code

• ORP Composite Electrode Manual

Part List:

• ORP probe (BNC connector) x1

• ORP probe circuit board x1

• Analog cable x1