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FUNCTIONAL DESCRIPTION HI 931500
SINGLE OUTPUT pH CONTROLLER
FRONT PANEL
ins
e
rum n s
HI 931500
pH Process
Controller
DOSAGE
pH
ACID
BASE
SLOPE
SET
COARSE
FINE
∆
O
SET
MEA
SURE
Keypad
SET
To set the working point of pH
dosage
MEASURE
To set HI 931500 on measure-
ment mode
Trimmers
∆∆∆∆∆
O
For Offset calibration
SLOPE
For Slope calibration
SET/COARSE To coarsely adjust the set point
SET/FINE
To finely adjust the set point
Leds
ACID
To show the acid dosage is
active
BASE
To show the basic dosage is
active