Hanna Instruments HI 8711 - Manual (Page 9)

9
Keypad
SET
To set the pH dosage limit
MEASURE To enter measurement mode and to enable
diagnostic tests
SENSOR TEST To display electrode mV reading and verify its
working condition
ΔALARM To display & set alarm tolerance
pH 7 TEST To verify Offset compensation
pH 4 TEST To verify amplifier circuit
Note: Each time a key is pressed the corresponding LED is turned ON
or changes its blinking behavior (ΔALARM).
Trimmers
OFFSET
For Offset calibration
SLOPE For Slope calibration
ΔALARM To set the alarm tolerance
FRONT PANEL
FUNCTIONAL DESCRIPTION HI 8710 FUNCTIONAL DESCRIPTION HI 8710 FUNCTIONAL DESCRIPTION HI 8710 FUNCTIONAL DESCRIPTION HI 8710 FUNCTIONAL DESCRIPTION HI 8710