Functional Description Hi 8711 - Hanna Instruments HI 8510 Instruction Manual

FUNCTIONAL DESCRIPTION HI 8711

FRONT PANEL
pH
HI 8711E
pH
ACID BASE
SET
SET
MEA
SURE
SENSOR
TEST
pH 7 pH 4
TEST TEST
HI 8711E
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
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SLOPE
Δ
ΔAL
COARSE
ACID SET
ΔAL
FINE
COARSE
BASE SET
FINE
Δ Δ Δ Δ Δ Al
pH 7 TEST
pH 4 TEST
Trimmers
Δ Δ Δ Δ Δ O
SLOPE
Δ Δ Δ Δ Δ AL
ACID SET/COARSE
ACID SET/FINE
BASE SET/COARSE
BASE SET/FINE
LEDs
ACID SET (Blinking)
BASE SET (Blinking)
Δ Δ Δ Δ Δ AL (Blinking)
16£
To display and set the
alarm tolerance
To verify Offset compen-
sation
To verify amplifier circuit
For Offset calibration
For Slope calibration
To set the tolerance of the
alarm
To coarsely adjust
acid setpoint
To finely adjust acid
setpoint
To coarsely adjust
basic setpoint
To finely adjust basic
setpoint
Show that acid dos-
age is active
Show that basic
dosage is active
Indicate active alarm
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