Hanna Instruments HI 8711 - Manual (Page 5)

5
FRONT PANEL
Keypad
SENSOR TEST
To display the mV reading of the electrode and,
therefore, verify its working condition
pH 7 TEST To verify the internal circuit of the meter in
terms of Offset compensation
pH 4 TEST To verify the amplifier circuit of the meter
Note: Each time a key is pressed the corresponding LED is turned ON.
Trimmers
OFFSET
For Offset calibration
SLOPE For Slope calibration
FUNCTIONAL DESCRIPTION HI 8510 FUNCTIONAL DESCRIPTION HI 8510 FUNCTIONAL DESCRIPTION HI 8510 FUNCTIONAL DESCRIPTION HI 8510 FUNCTIONAL DESCRIPTION HI 8510