HI 531 5 REFER ENCE Instruction Manual HI 5315 Reference Electrode 1
HI 5315 Reference Electrode I. Introduction The Hanna HI 5315 reference electrode is a silver-silver chloride double junction half-cell designed for use with ion selective electrodes or pH sensors. The electrode utilizes a quick flush sleeve design. The external reference electrolyte chamber is refillable. The internal chamber is a permanently filled, gel stabilized, chloride containing electrolyte. IIII.
IV IV.. HI 5315 design elements Upper Cap Spring Fill Hole O-Ring O-Ring and Plug Ceramic Junction on Inner Stem Liquid junction V. Reference Fill Solutions The fill solution used in the external electrolyte chamber of this electrode is replaceable. Table 1 lists Hanna‘s ion selective electrode (ISE) offering along with the recommeded fill solutions used when making an ion measurement. A bottle of this solution is provided with the ISE when shipped.
d reproducible potential.
3. Reassemble electrode by gently pushing the inner assembly into the outer body (from the bottom). Slide the spring and upper cap down the cable and over the top of the inner stem. Screw the upper cap into place. 4. Unscrew and remove the fill hole plug and o-ring on fill hole spout. 5. Select the appropriate fill solution from Table 1. Use the dropper pipette provided to add a few drops of fill solution to the electrode. Invert electrode to wet the oring and rinse the electrolyte chamber.
VII. General Guidelines • During measurement always operate electrode with the fill hole open. • Verify protective cap has been removed. • During normal use, fill solution will slowly drain out of the tapered cone junction at the bottom of the electrode. Excessive loss (>4 cm drop within 24 hours) is not normal. If this occurs verify the upper cap is tightened and the interface between the internal cone and outer body is free of debris. • Add fill solution daily to maintain a good head pressure.
VIII. Disassembly - Assembly Disassembly is normally not required or recommended. If crystals or other matter are seen between outer body and inner cone, the electrode may be disassembled for cleaning or inspection. Protect the cone surface from oils or dirt by using gloves or lab tissues. 1. Drain fill solution from electrode body by depressing the upper cap while holding the outer body. 2. Rinse inner body with deionized water and drain by pressing the upper cap. 3.
MAN5315 07/06REV4 WARRANTY Hanna Instruments ISE series electrodes are warranted to be free of defects in material and workmanship for 6 months from date of purchase when used for their intended purpose and maintained according to instructions. If they fail to work when first used contact your dealer immediately. Damage due to accidents, misuse, misapplication, tampering or lack of prescribed maintenance is not covered.
