EZO pH Circuit - Datasheet

Calibration theory

Simple calibration Advanced calibration

mode mode

The most important part of calibration is watching the

readings during the calibration process.

It's easiest to calibrate the device in its default state

(UART mode, with continuous readings enabled).

Switching the device to I

C mode after calibration will

not affect the stored calibration. If the device must be

calibrated in I

C mode be sure to continuously request

readings so you can see the output from the probe.

Send

2.973

3.141

4.594

5.362

6.080

6.190

Unstabilized

Stabilized

Calibration order

If this is your ﬁrst time calibrating the EZO

™

pH circuit, we recommend that you follow this

calibration order.

ASPH7P ASPH4P ASPH10P