Instruction manual
- 13 - 
2.5.2  Key Functions 
ENT
ESC
PH/ORP RF Transmitter
Alpha pH 600
CAL
Key  Description 
CAL
Enter Calibration mode. 
ENT
Enter Setup mode 
Access sub screens (parameters) within a group of settings in 
Setup mode 
Confirm (save) setup parameters and numerical values 
Start/Confirm calibration in Calibration mode. 
Select a group of settings in Setup mode. 
Select parameters and increment/decrement numerical values in 
Setup and Calibration modes. 
(When pressed continuously, speed of value increment/decrement 
increases) 
Returns to Measurement mode when both keys are pressed 
simultaneously. 
Alpha pH 550
pH Monitor 










