Instruction manual
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Mode Indicators 
MEAS 
Measurement mode; blinks in Symmetric mode 
(Refer Section 3.1& 5.5 ) 
SETUP 
Setup mode (Refer Section 5) 
CAL 
Calibration mode (Refer Section 4) 
Status Annunciators 
READY 
Appears when the reading is stable 
ATC 
Appears when Automatic Temperature Compensation (ATC) is 
enabled. 
Not visible when Manual Temperature Compensation (MTC) is 
enabled. 
Flashes if the temperature probe is faulty in its ATC mode. 
(Refer Section 5.3) 
ERR 
Appears when an error occurs (Eg. wrong key pressed) 
Electrode annunciator. Appears when viewing electrode properties 
or during calibration error 
Buffer annunciator. Appears in calibration mode 
Units of Measurement Indicators 
mV 
Millivolt. Appears in ORP measurement / calibration modes 
(Refer Section 3.1, 4.4) 
R.mV 
Relative Millivolt 
pH 
Appears in pH measurement/calibration modes 
(Refer Section 3.1,4.3) 
ºC 
Temperature in Celsius (Refer Section 5.3) 
ºF 
Temperature in Fahrenheit (Refer Section 5.3) 










