Description
Meytec RX 250 mV redox calibration solution bottle 60 ml
The Meytec buffer solution RX 250 mV bottle 60 ml is a redox calibration liquid for orp meters and controllers used in pools, spas and water treatment systems. It provides a stable reference value of 250 mV so you can verify and adjust electronic probes and keep oxidation reduction potential readings accurate over time.
Application and purpose
Orp probes gradually drift as the measuring surface ages and is exposed to treated water, chemicals and temperature changes. Calibrating or checking with 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 in everyday operating conditions.
A 250 mV reference is commonly used as a control point for disinfection systems and instruments that monitor oxidation reduction potential in fresh water. Regular checks against this standard make it easier to distinguish between real changes in water quality and simple instrument drift.
Compact 60 ml bottle for field work
The Meytec buffer solution RX 250 mV bottle 60 ml comes in a compact screw cap bottle that fits easily into portable test kits and service cases. The smaller volume is ideal for occasional calibration or verification of one or a few instruments, keeping the solution fresh until it is used.
- 60 ml of ready to use RX 250 mV calibration solution.
- Space saving bottle for residential and small commercial pools.
- Practical size for mobile technicians and on site measurements.
For best preservation of the reference value, only the amount needed for a single calibration should be poured into a clean container, while the main bottle remains closed.
Calibration and verification of orp probes
The Meytec buffer solution RX 250 mV bottle 60 ml is compatible with most orp and redox meters that accept external calibration standards. It can be used either to perform a full calibration at 250 mV or as a verification standard to check that probe response remains within acceptable tolerance.
- Lower range reference point for orp and redox meters.
- Helps confirm that probes used in pool and spa water still respond correctly.
- Suitable for handheld testers, fixed controllers and multi parameter meters.
Calibration and verification should always follow the procedure given in the instrument manual, including instructions about temperature compensation, immersion depth and stabilisation time around the 250 mV value.
Example verification procedure
A quick verification with Meytec RX 250 mV solution can be integrated into routine maintenance to confirm that the probe and meter continue to perform correctly at the lower redox point.
- 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 a stable reading.
- Compare the displayed value with 250 mV and adjust if the instrument allows calibration.
If the reading stays far from the reference value or remains unstable, the probe may require cleaning, regeneration or replacement before it can provide reliable measurements in pool water.
Storage and handling recommendations
To keep the Meytec buffer solution RX 250 mV bottle 60 ml within specification, it should be stored in a cool, dry place away from direct sunlight and heat sources. Good handling practices reduce contamination and help 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.
- Never pour used calibration solution back into the original bottle.
Combined with regular probe cleaning, correct storage and periodic calibration using this Meytec redox standard, orp control systems can deliver stable and dependable disinfection monitoring in pool and water treatment applications.
