Description
Meytec buffer solution – RX 250 mV – bottle 250 ml
The Meytec buffer solution RX 250 mV bottle 250 ml is a redox calibration liquid for orp and oxidation reduction potential meters used in pools, spas and water treatment systems. It provides a stable reference value of 250 mV so you can check and adjust electronic probes, keeping redox readings accurate over time.
Use of a 250 mV redox buffer solution
Orp probes gradually drift as the electrode ages and is exposed to treated water, chemicals and temperature variations. Calibrating or verifying with a Meytec buffer solution RX 250 mV allows you to correct this drift in the lower part of the redox range and confirm that the probe is still responding correctly.
A 250 mV reference is typically used as a control point for disinfection systems and for instruments that monitor oxidation reduction potential in fresh water. It is especially useful when you want to document probe behaviour over time or compare different meters.
250 ml bottle for regular calibration
The Meytec buffer solution RX 250 mV bottle 250 ml is supplied in a practical screw cap bottle designed for repeated use. The 250 ml content provides enough calibration liquid for numerous checks and adjustments, making it suitable for service technicians and pool operators who calibrate regularly.
- 250 ml of ready to use RX 250 mV calibration solution.
- Design bottle with secure cap for repeated opening and closing.
- Suitable for handheld orp testers, controllers and multi parameter meters.
For best results, only a small working volume should be poured into a clean container for each calibration session and the main bottle should be closed immediately afterwards to help maintain the specified value.
Calibration and verification of orp probes
The Meytec buffer solution RX 250 mV bottle 250 ml is compatible with most orp and redox meters that accept external calibration standards. It can be used either to perform a full calibration, where the instrument is adjusted to 250 mV, or as a verification standard to check probe performance.
- Lower range reference point for orp and redox meters.
- Helps confirm that probes used in pool and spa water still respond correctly.
- Useful for regular verification of control systems that dose disinfectant.
Always follow the procedure described in the instrument manual, including any instructions regarding temperature compensation, immersion time and acceptable tolerance around the 250 mV value.
Example verification procedure
A typical quick check of an orp probe with Meytec RX 250 mV solution can be integrated into routine maintenance. The aim is to confirm that the meter reading remains close to the reference value.
- Rinse the orp probe with clean water and gently dry with a soft cloth.
- Pour a small amount of RX 250 mV solution into a clean container.
- Immerse the probe in the calibration solution and wait for the reading to stabilise.
- Compare the value on the display with 250 mV and adjust if the instrument allows calibration.
If the reading is significantly outside the specified tolerance and cannot be corrected, the probe may require cleaning or replacement to restore accurate redox measurement.
Storage and handling recommendations
To keep the Meytec buffer solution RX 250 mV bottle 250 ml within specification, it should be stored in a cool, dry place away from direct sunlight and heat sources. Correct handling helps to avoid contamination and extends the useful life of the calibration liquid.
- 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 cleaning and correct storage of orp probes, this Meytec RX 250 mV solution supports stable, reliable redox measurements and helps maintain consistent disinfection control in pool and water treatment systems.
