well water rodi

[mark]

Originally Posted by Myka

I have never heard this before. AquaFX advertises their digital hand held meter as having accuracy +2% from 0-999 ppm.

For instruments I'm use to seeing accuracy stated in units, eg +/- 0.1Volts.

For the AquaFX a percentage of what? Could potentially see this as +/-2% of full range so +/- 20ppm.

[BWI]

personally i would keep the carbon and just put it down to 1 micron. RO/DI units with out 1 micron fiolters for marine aquariums is just taking away from your membranes life. Also flush kits help lengthen the life of a membrane. Carbon doesn't just take chlorine out either.

[Myka]

Originally Posted by mark

For instruments I'm use to seeing accuracy stated in units, eg +/- 0.1Volts.

For the AquaFX a percentage of what? Could potentially see this as +/-2% of full range so +/- 20ppm.

Housed in a pocket sized ABS case, this electronic Total Dissolved Solids tester is very durable.

- Wide Measurement Range: 1 to 999 ppm
- Excellent Accuracy: + 2% Full Scale
- Long Battery Life: more than 1000 measurements
- One-Point Calibration

[midgetwaiter]

Originally Posted by mark

For instruments I'm use to seeing accuracy stated in units, eg +/- 0.1Volts.

For the AquaFX a percentage of what? Could potentially see this as +/-2% of full range so +/- 20ppm.

That's how I interpret it too Mark.

The instructions for my Milwaukee CD97 states both:
+/- 10ppm @68F
1% EMC deviation of full range (999ppm)