Calibration Check Solution for HI9813-6 (25 x 20 mL Sachets)

HI50021P is a premium quality calibration check solution produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. It is specially formulated for use with the HI9813-6 portable pH/EC/TDS/Temp. meter. It allows the user to check the meter's calibration status at any time by simply rinsing the probe with water and immersing it in the solution. The meter will indicate the probe's condition.

Convenience of individual packaging

Ideal for field use due to portability Every sachet is as fresh as the day it was packaged

Each sachet marked with lot number and expiration date.

Hanna solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet.

Light block packaging

Prevents any oxidation from UV light that could affect quality

CAL-CHECK™ FEATURE / CLEAN & CAL PROCEDURE The unique Cal-Check™ feature allows the user to check the meter calibration status at any time. Simply follow the procedure outlined below for a quick assessment of the calibration status.

Rinse the probe with water. Immerse the probe in the HI50021P check solution. Press the Check key. If the meter is calibrated "Probe is OK in. message is displayed. If cleaning is needed "Clean Probe and Calibration. message is displayed

Immerse the probe in appropriate cleaning solution (i.e. HI700661) for 5 minutes, then rinse it with tap water. Immerse again in the HI50021 check solution and press the CHECK key. If the message "Probe is OK in. is displayed, the meter does not need calibration. If the message "Clean Probe and Calibration. is displayed then calibration must be performed.

Note: If the reading is around pH 4.0 when the probe is placed in Cal-Check solution then the probe is broken and has to be replaced.