FUNCTIONAL DESCRIPTION HI 931501
DUAL OUTPUT pH CONTROLLER
Keypad
ACID SET
BASE SET To set the working point of basic
MEASURE To set HI 931501 on measure-
Trimmers
∆ ∆ ∆ ∆ ∆ O
SLOPE
ACID SET/COARSE To coarsely adjust the
FRONT PANEL
ins rum n s
pH
DOSAGE
ACID
BASE
SET
SET
MEA
SURE
HI 931501
pH Process
Controller
To set the working point of acid
dosage
dosage
ment mode
For Offset calibration
For Slope calibration
acid set point
26
SLOPE
∆O
COARSE
ACID SET
FINE
COARSE
BASE SET
FINE