Using 10vdc sensors

I am considering a project that will be all new stuff to me. The first issue I see is the voltage range of the sensor I need to read. It is a 5’ long sensor tube that would be installed directly into a waste holding tank. The sensor manufacture has been providing this device for years, but has no product for remote use.
My concern is the voltage ranges of the sensor. The sensor has three pins, a 10vdc reference voltage pin, a ground, and the analog output from .01 to 9.99, depending on tank level.
What will I need to supply 10 vdc to the sensor, and read the .01 to 9.99 sensor output.
After I get past reading the sensor, I need to have the system make the reading available in a webpage format, but first things first.

Divide the output voltage by 2,and then use analogRead on a 5V Arduino.

AWOL:
Divide the output voltage by 2,and then use analogRead on a 5V Arduino.

I'm working on an analog read project right now - how accurate will that be? At least that one is the full range.

What do you mean by an analog output? It's a voltage reading from .01 - 9.99 volts?

You will need a 12v source DC power source and an 10v regulator such as the L7810. The issue with this project is that without a good reference 10v (the 7810 is not a precise voltage reference) and a precise reference voltage for the Arduino your errors may compound and you may be anywhere from 5 - 10% off the mark. I believe.

JerrardHolland:
The sensor has three pins, a 10vdc reference voltage pin, a ground, and the analog output from .01 to 9.99, depending on tank level.

Best to post a link to the sensor's datasheet, so we don't have to guess.

wolframore:
The issue with this project is that without a good reference 10v (the 7810 is not a precise voltage reference) and a precise reference voltage for the Arduino your errors may compound and you may be anywhere from 5 - 10% off the mark.

That same voltage/reference can be used as Vref for the Arduino (with a suitable dropper resistor).
Assuming the sensor is ratiometric.
Leo..

If not ratiometric use a 9:1 voltage divider and the internal 1.1V reference.

The Arduino's ADC is 10 bits, 1,024 steps, so 10V at 0.01V increments. Should be precise enough.

If you are going to use WiFi, look at the WEMOS D1. ESP8266 module
It takes
0 to 3.3 volts because it is a 3.3v device and has on-board voltage dividers to drop to it's
Natural 1 volt input
But makes the WiFi bit very easy

dave-in-nj:
If you are going to use WiFi, look at the WEMOS D1. ESP8266 module
It takes 0 to 3.3 volts because it is a 3.3v device and has on-board voltage dividers to drop to it's
Natural 1 volt input

That makes it tricky as well: if the resistors of the 12V to 3.3V divider are too large, the divider of the WeMOS starts to significantly affect the signal.

A huge question is the required accuracy and resolution
The ESP8266 has only one ADC channel. No Vref input so you are reliant on the stability of the power supply.
Or, being off a little is not important.

wvmarle:
That makes it tricky as well: if the resistors of the 12V to 3.3V divider are too large, the divider of the WeMOS starts to significantly affect the signal.

Don't use a second voltage divider when you already have one on the WeMos.
Adding a single resistor between voltage source and WeMos input should be enough.
Leo..

Wow, this is not the volume or quality of response I was expecting. You folks are great.
Next I will try to get a data sheet from the sensor vendor, and figure out how to post it. Give me a day.