Functional Description Hi 8720 - Hanna Instruments HI 8510 Instruction Manual

FUNCTIONAL DESCRIPTION HI 8720

ORP CONTROLLER
FRONT PANEL
ORP HI 8720E
mV
DOSAGE
OXID. REDUC.
MEA
SET
SURE
∆AL
500 mV
0 mV
TEST TEST
Keypad
SET To set the working point of ORP
dosage
MEASURE To set HI 8720 on measurement
mode and to enable the diag-
nostic tests
∆ ∆ ∆ ∆ ∆ Al
To display and to set the toler-
ance of the alarm points
0 mV TEST To verify the instrument calibra-
tion at point 0
500 mV TEST To verify the slope at point
500 mV
18
SLOPE
∆AL
COARSE
SET
FINE