
970-498-1500 www.in-situ.com 2020-08-13 | 0063472Page 3
Cleaning and Storing the Sensor
Gently rinse with cold
water to clean.
To remove crystalline
deposits, clean with
warm water and soap,
or soak sensor in 5%
HCl solution for 10 to 30
minutes.
Short-term storage (less than
two days): Store the sensor in
conditioning solution. Long-term
storage: Store dry. Install rubber boot
to protect sensor.
Leave reference solution in the sensor
during storage.
Basic Cleaning...
Removing Crystalline Deposits...
Eliminating Oily or Greasy Residue...
Removing Protein-like Material or Film...
• Clean the sensor with warm water and mild soap.
• Soak the sensor in 5% HCl solution for 10 to 30 minutes.
• If deposits persist, alternate soaking in 5% HCl and 5% NaOH solutions.
• Clean the sensor with warm water and mild soap.
• Methanol or isopropyl alcohol are appropriate for short soaking periods of up to one hour.
• Do not soak the sensor in strong solvents, such as chlorinated solvents, ethers, or keytones, such as
acetone.
• Clean the sensor with warm water and mild soap.
• Soak the sensor in 0.1 HCl solution for 10 minutes and then rinse with deionized water.
Replacement Parts
Reference Filling Solution 0056900
Zobell’s ORP Solution (1 L) 0032100
pH Calibration Kit (1 L each pH 4, pH 7, pH 10, DI water) 0032080
Quick Cal (4 x 250 mL) 0033250
Reference Junction Kit (3 junctions, 60 mL reference lling solution) 0078990
pH Storage Solution (500 mL) 0065370