User manual HANNA INSTRUMENTS HI 4008

[. . . ] HI 4108 CUPRIC COMBINATION HI 4008 Instruction Manual HI 4008 HI 4108 Cupric Ion Selective Electrode Half-cell Combination 1 CUPRIC HI 4008 Cupric Half-cell HI 4108 Cupric Combination Electrode I. Introduction: The Hanna HI 4008 and HI 4108 are ion selective electrodes designed for the measurement of cupric ions in aqueous solutions. The HI 4008 is a solid state half-cell sensor that requires a separate reference. The HI 4108 is a combination ion selective electrode. [. . . ] · If an erratic measurement occurs, check to see if foreign matter is seen trapped near the internal cone. Drain, wipe off outer cone while depressing cap, release cap and refill with fresh fill solution. 7 VIII. Remove protective cover from sensor tip. Prepare reference electrode by filling outer electrolyte reservoir with HI 7072. Place sensor and reference electrodes into electrode holder and connect cable connectors to meter. Unwrap plastic film seal found over ceramic junction on inner stem and discard. This is only used for shipping and long term storage. Rinse inner stem with deionized water making certain to wet the o-ring found on the inner stem. Deionized Water Remove Parafilm 3. Reassemble electrode by gently pushing the inner assembly into the outer body, sliding spring down cable, and screwing cap into place. Remove fill hole cover and o-ring on fill hole spout. Using the dropper pipette provided, add a few drops HI 7072 fill solution to the electrode, wetting the oring and rinsing out the fill solution chamber. 8 6. 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 electrode returns to its original position. (You may need to gently assist for this to occur). 7. Tighten the electrode cap onto the body and fill electrode body until fill solution volume is just below fill hole. Position electrode in a Hanna HI 76404 electrode holder (or equivalent) and connect plug to meter. 9 HI 4108 CUPRIC ATION IN COMB IX. · · · · · · · Quick Check of Electrode Slope Connect sensors to pH/mV/ISE meter Place meter in mV mode. Place 100 mL of deionized water into a beaker with stir bar and 2 mL of HI 4000-00 ISA. Add stir bar and place on magnetic stirrer. Add 1 mL of the stock standard HI 4008-01 (or . 01 M or . 001 M standard by dilution) to the beaker. Record the mV value when reading has stabilized. [. . . ] Two mL HI 4000-00 ISA is added to 100 mL of both samples and standards. Add stir bar and mix before taking measurements. Follow section VII; General Guidelines to optimize test set-up. During calibration it is best to start with lower concentration samples first. [. . . ]