User Guide

12
FUNCTIONAL DESCRIPTION HI 8710
pH CONTROLLER WITH ALARM
Keypad
SET To set the working point of pH
dosage
MEASURE To set HI 8710 on measure-
ment mode and to enable the
diagnostic tests
SENSOR TEST To display the mV response
of the electrode in order to verify
its working condition
∆∆
∆∆
∆AL To display and set the toler-
ance of the alarm points
pH 7 TEST To verify the internal circuit of
the meter in terms of Offset
compensation
pH 4 TEST To verify the amplifier circuit of
the meter
FRONT PANEL
SLOPE
ACID
BASE
∆AL
0
∆
COARSE
SET
FINE
SENSOR
TEST
MEA
SURE
∆AL
SET
pH 7
TEST
pH 4
TEST
pH
HI 8710E
pH