Modul Sensor TDS analog Signal Dissolved solid water Quality Suitable for arduino stm32

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Power supply voltage: 3.3~5.0V

Working current: 3-6mA

Output signal range: 0~2.3V

TDS measurement range: 0~1000ppm

TDS measurement accuracy: ±5%F.S. (25C)

Module size: 42mm×31.2mm

TDS probe interface: 2Pin XH-2.54

Temperature sensor interface: 3Pin XH-2.54

Signal output: 0~2.3V analog signal output, compatible with 5V and 3.3V control

System

The excitation source is an AC signal, which effectively prevents probe polarization

Waterproof: waterproof probe, can be immersed in water for long-term measurement

TDS probe parameters:

TDS probe is suitable for 2-point PE pipe

Parameter index

Parameter value

Insulation resistance between the two poles

50M ohms (when not in contact with water)

Detection medium temperature

Recommended working voltage

Recommended working current

Line length

Pin definition

70℃℃


≤50uA (the smaller the current, the longer the probe life)

58CM

The composition of the analog TDS sensor module is shown in the figure below. The module is connected to the TDS probe through the 2Pin XH-2.54 connector, and is extended with a DS18820 temperature sensor interface to facilitate software temperature compensation design.

TDS probe interface

Temperature sensor interface