The Atlas Scientific EZO
™
ORP circuit has a flexible
calibration protocol, allowing single point calibration to
any off the shelf calibration solution.
However, If this is your first time calibrating the EZO
™
ORP circuit, Atlas Scientific recommends using the 225mv
calibration solution.
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
2
C mode after calibration
will
not
affect the stored calibration. If the device must be
calibrated in I
2
C mode be sure to
continuously
request
readings
so you can see the output from the probe.
Send
152.1
197.3
210.6
295.7
306.2
315.7
315.7
315.7
315.7
315.7
315.7
Unstabilized
Stabilized
12
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