ORP stands for “Oxidation-Reduction Potential.” Oxidation Reduction Potential is the measure in millivolts of the tendency of a chemical substance to oxidize or reduce another chemical substance. For hypochlorite manufacturing, the more positive the potential, the greater the oxidizing power. A technical paper entitled “The Control of Bleach Manufacture by Oxidation Potential,” by D.J. Pye proved a correlation between ORP measurement and excess caustic levels. The paper concluded that the use of ORP for the control and monitoring of a chlorination process is reliable, efficient, and practical.
- Slim, ergonomic design that fits comfortably in the hand or pocket
- Waterproof casing designed to float if dropped in water
- Large LCD displays stability indicator, low-battery indicator, and calibration tags
- Replaceable electrode extends the life of the tester
- HOLD button for easier measurement recording
- Automatic shut-off with three user controlled settings
- Battery % level displayed when tester is powered on
- Use SET/HOLD to select ORP mode. Place the electrode in the solution to be tested.
- The measurement should be taken after the stability tag has disappeared.
- The ORP (mV) value is displayed on the first LCD line and the temperature on the second LCD line.
RECOMMENDATIONS FOR USERS
Before using this tester, make sure that it is entirely suitable for your specific application and for the environment in which it is used. The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid touching the glass bulb and the ORP electrode at all times. Any variation introduced by the user to the supplied equipment may degrade the tester’s performance. For yours and the tester’s safety do not use or store the tester in hazardous environments.
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