Hanna Instruments HI 8510 User Manual
Page 9
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16£
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ΔΔΔΔΔ
Al
To display and set the
alarm tolerance
pH 7 TEST
To verify Offset compen-
sation
pH 4 TEST
To verify amplifier circuit
Trimmers
ΔΔΔΔΔ
O
For Offset calibration
SLOPE
For Slope calibration
ΔΔΔΔΔ
AL
To set the tolerance of the
alarm
ACID SET/COARSE
To coarsely adjust
acid setpoint
ACID SET/FINE
To finely adjust acid
setpoint
BASE SET/COARSE
To coarsely adjust
basic setpoint
BASE SET/FINE
To finely adjust basic
setpoint
LEDs
ACID SET (Blinking)
Show that acid dos-
age is active
BASE SET (Blinking)
Show that basic
dosage is active
ΔΔΔΔΔ
AL (Blinking)
Indicate active alarm
FUNCTIONAL DESCRIPTION HI 8711
Keypad
ACID SET
To set the working point
of acid dosage
BASE SET
To set the working point
of basic dosage
MEASURE
To enter measurement
mode and to enable
diagnostic tests
SENSOR TEST
To display electrode mV
reading and, therefore,
verify its working condition
FRONT PANEL
SLOPE
Δ
AL
Δ
COARSE
ACID SET
FINE
COARSE
FINE
BASE SET
HI 8711E
SENSOR
TEST
MEA
SURE
ACID
SET
Δ
AL
BASE
SET
pH 7
TEST
pH 4
TEST
pH
HI
8711E
pH