MAINTENANCE HI 98204 Water Test • Separate the compartment from the tester. Water Test pH/ORP/EC/Temperature in One Unit • Remove deposits formed on the liquid junction ON / OFF RANGE and pH glass bulb by soaking in HI 7061 cleaning 4 pH 7 solution for 30 minutes.
OPERATION • Adjust the right trimmer located behind Water Test the front cover until the display shows "7.0 • Do not be alarmed if white crystals appear around pH". ON / OFF RANGE the cap. This is normal with pH electrodes and Water Test 4 pH 7 they dissolve when rinsed with water.