Hanna Instruments wm 8910 User Manual
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E.g. How to dose reducing substances
Setpoint = mV 650
Measured value = mV 700
To reach the setpoint you need to dose reductants,
therefore short "REDOX" with the common (middle) termi-
nal of "CONTROL SELECT".
Setpoint = mV 650
Measured value = mV 700
To reach the setpoint you need to dose reductants,
therefore short "REDOX" with the common (middle) termi-
nal of "CONTROL SELECT".
E.g. How to dose oxidizing substances
Setpoint = mV 650
Measured value = mV 350
To reach the setpoint, you need to dose oxidants,
therefore short "OXYDT" with the common terminal.
Setpoint = mV 650
Measured value = mV 350
To reach the setpoint, you need to dose oxidants,
therefore short "OXYDT" with the common terminal.
FOR WM 8923 (pH & CONDUCTIVITY)
a) pH setpoint
Adjust the graded dial to the desired set point from 4.00 to
10.00 pH.
Adjust the graded dial to the desired set point from 4.00 to
10.00 pH.
a) mS/cm setpoint
Adjust the graded dial to the desired setpoint from 0.50 to
5.00 mS/cm.
Adjust the graded dial to the desired setpoint from 0.50 to
5.00 mS/cm.
a) mS/cm set point
Adjust the graded dial to the desired set point position. The
conductivity set point can be set between 0.50 and 3.00 mS/cm.
Adjust the graded dial to the desired set point position. The
conductivity set point can be set between 0.50 and 3.00 mS/cm.
FOR WM 8920
Turn the switch to the "SET" position. The display will show the set
value (e.g. mV 650).
value (e.g. mV 650).
Using a small screwdriver, first adjust the setpoint through the
COARSE trimmer, then fine tune it to your required level with the
FINE trimmer until the desired set value is displayed (e.g. mV 700).
COARSE trimmer, then fine tune it to your required level with the
FINE trimmer until the desired set value is displayed (e.g. mV 700).
HOW TO SELECT THE DOSING DIRECTION
Select the direction of dosing through the "CONTROL
SELECT" terminals. For a reducing dosage, short the
"REDOX" terminal with the common terminal in the
middle of "CONTROL SELECT".
SELECT" terminals. For a reducing dosage, short the
"REDOX" terminal with the common terminal in the
middle of "CONTROL SELECT".
For an oxidizing dosage, short the "OXYDT" terminal
with the common (middle) terminal.
with the common (middle) terminal.