Calibration
Hydro-Air P-38
20
pH / ORP Analyzer
Two test containers with standard pH buffer solutions are required for calibration.
The sensor should be rinsed thoroughly with water when changing the standard
solution.
DISPLAY
FUNCTIONS
Select Calibrate to initiate sensor calibration
Select Default to reset all calibration settings back
to factory settings.
Slope:
The latest slope of the pH sensor
Default
: 59.16mV
Press
ENTER
to start calibration
Reading:
Current pH reading from the sensor
Buffer:
Press the
UP
/
DOWN
key to set the buffer for the
First Point
Buffer options
: 6.86 / 7.00 pH
Place the sensor into the standard buffer. Then
press
ENTER
to start calibration. The screen
shows
CAL
indicating the calibration is in progress.
Press
ENTER
when the Reading is stable to
proceed with Second Point calibration.
