15
pH 7 TEST To verify the internal cir-
cuit of the meter in terms
of Offset compensation
pH 4 TEST To verify the amplifier cir-
cuit of the meter
Trimmers
∆∆
∆∆
∆O For Offset calibration
SLOPE For Slope calibration
∆∆
∆∆
∆AL To set the tolerance of
the alarm
ACID SET/COARSE To coarsely adjust the
acid set point
ACID SET/FINE To finely adjust the
acid set point
BASE SET/COARSE To coarsely adjust the
basic set point
BASE SET/FINE To finely adjust the ba-
sic set point
Leds
ACID SET (Blinking) To show the acid dos-
age is active
BASE SET (Blinking) To show the basic
dosage is active
∆∆
∆∆
∆AL (Blinking) To show the alarm is
active
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