Hanna Instruments HI 4004 - Manual (Page 10)

10
7. Holding the body of the electrode gently press upper
cap with your thumb. This permits the fill solution to
drain out of the body. Release cap and verify elec-
trode returns to its original position. (You may need to
gently assist for this to occur).
8. Tighten the electrode cap onto the body and fill elec-
trode body until fill solution volume is just below fill
hole.
9. Position electrode in a Hanna HI 76404 electrode
holder (or equivalent) and connect BNC connector to
meter.
IX. IX. IX. IX. IX. Quick Check of Electrode Slope Quick Check of Electrode Slope Quick Check of Electrode Slope Quick Check of Electrode Slope Quick Check of Electrode Slope
• Connect electrode(s) to pH/mV/ISE meter
• Place meter in mV mode.
• Place 100 mL of deionized water into a beaker with
stir bar.
• Place reference and measuring half-cell or combina-
tion electrode into prepared sample.
• Add 1 mL of a standard to beaker. Record the mV
value when stable.
• Add an additional 10 mL of standard to the solution.
HI
4104
CALCIUM COMBINA
TION
Record the mV when reading has stabilized. This