The D-pHi Series™

Reference Refill Kit

Contains material for twelve (12) reference refills of D-phi Series pH AND ORP Sensors.

The D-phi Series reference solution becomes diluted over time by the sample.  If excess dilution occurs, then sensor drift occurs and more frequent calibration is required. 

To avoid drops in performance, we recommend replacing the reference solution every 1-2 months*.  Following these guidelines leads to less frequent calibration checks and recalibrations, which saves time and labor costs throughout the life of the sensor.

Watch the video below to see how easy the 60-second reference replacement procedure is: 

Reference Replacement video and text instructions are readily available to walk through even the newest employees.

*Ideal replacement frequency depends on the application and must be determined empirically through calibration checks. Applications with high flow rate, temperature, pressure, alkalinity, or acidity dilute the reference faster and may require more frequent replacement.

$85 USD