Description
Meytec buffer solution – RX 650 mV – bottle 250 ml
The Meytec buffer solution RX 650 mV bottle 250 ml is a high range redox calibration liquid for orp meters and controllers used in pools, spas and water treatment systems. It provides a stable reference around 650 mV so you can check and adjust electronic probes that operate in strongly oxidising conditions.
Use of an RX 650 mV redox buffer solution
Orp probes gradually drift as the electrode surface ages and is exposed to treated water, chemicals and temperature changes. Calibrating or verifying with Meytec buffer solution RX 650 mV allows you to correct this drift at the upper end of the redox range, where many disinfection processes are controlled.
A well defined 650 mV reference is particularly useful when monitoring high disinfection levels, process waters or applications where you need to document that the probe still responds correctly at elevated redox values.
250 ml bottle for regular calibration
The Meytec buffer solution RX 650 mV bottle 250 ml is supplied in a practical screw cap bottle designed for repeated use during routine maintenance. The 250 ml content provides enough calibration liquid for numerous checks and adjustments, making it ideal for service technicians and pool plant operators.
- 250 ml of ready to use RX 650 mV calibration solution.
- Design bottle with secure cap for repeated opening and closing.
- Suitable for handheld orp testers, fixed controllers and multiparameter meters.
For best preservation of the reference value, only a small working volume should be poured into a clean container for each calibration and the main bottle should be closed again immediately after dispensing.
Calibration and verification of orp probes
The Meytec buffer solution RX 650 mV bottle 250 ml is compatible with most orp and redox instruments that accept external calibration standards. It can be used either for full calibration, where the instrument is adjusted to the 650 mV reference, or as a verification standard to confirm that probe response remains within acceptable tolerance.
- High range reference point for orp and redox meters in oxidising conditions.
- Helps confirm that probes used for disinfection control remain accurate.
- Useful for documenting probe performance in demanding treatment processes.
Always follow the procedure specified in the instrument manual, including immersion depth, stabilisation time and any temperature compensation settings required around the RX 650 mV reference.
Example verification procedure
A quick verification with Meytec RX 650 mV solution can be integrated into regular maintenance to check that the probe and meter continue to perform correctly at high redox values.
- Rinse the orp probe with clean water and gently dry with a soft cloth.
- Pour a small amount of RX 650 mV solution into a clean container.
- Immerse the probe in the calibration solution and wait for the reading to stabilise.
- Compare the displayed value with 650 mV and adjust if the instrument allows calibration.
If the reading remains far from the reference or is unstable, the probe may require cleaning, regeneration or replacement before it can provide reliable high range redox measurements.
Storage and handling recommendations
To keep the Meytec buffer solution RX 650 mV bottle 250 ml within specification, it should be stored in a cool, dry place away from direct sunlight and heat sources. Correct handling reduces contamination and helps maintain the stated reference value for as long as possible.
- Always close the bottle tightly immediately after dispensing.
- Use only clean glass or plastic containers for the working volume.
- Do not pour used calibration solution back into the original bottle.
Combined with regular probe cleaning, proper storage and periodic calibration using this Meytec redox standard, your orp control systems can deliver stable and dependable disinfection monitoring in high oxidising applications.
