The general industrial process includes the following fields :

1. 1.Chemical industry
2. 2.Petrochemical industry
3. 3.Sugar industry
4. 4.Swimming pool water, sea water , underground water
5. 5.High temperature and strong acid occasion ,high temperature and strong base occasion
6. 6.Other industry

technical features:

• Adoption of the most advanced Teflon diaphragm with large ring section to make the electrode with stable liquid juntion.
• Strong anti-interference ability; it is not easy to be polluted and blocked; long life.
• The reference system is filled with the high polymer; convenient use; it is unnecessary to refilling electrolyte.
• Sensitive response of electrode (the measured value 95%can be reached up in several seconds).
• pH range: 0～14pH the temperature range:0～110℃.
• Pressure resistance of the electrode:0.6MP and the zero potential E0=7pH.
• The external dimension of the electrode is φ12×120, 225 or other dimensions.

This electrode is a hand crafted, precision analytical device. Carefully follow the directions in this instruction sheet to obtain the best performance and electrode life.

Required Equipment and Solution

• pH meter (a temperature compensator is recommended for increased pH measurement accuracy)
• pH Buffer 4.01
• pH Buffer 7.00
• Reference filling solution (see list for particular pH electrode type) for refilling electrode only
• Wash bottle filled with distilled or de-ionized water
• Lab wipes
• Clean breakers

Preparation of the Electrode for Initial Use

1. 1.Remove the protective bottle or cover from the electrode and thoroughly rinse the electrode with distilled water or tap water. Wipe carefully with a clean lab wipe.
2. 2.During shipment, air bubbles may have migrated into the electrode sensing bulb. Hold the electrode up to the light and inspect the sensing bulb for air bubbles. If air is seen, carefully shake the electrode downward (like a thermometer) to dispel the air bubble from the sensing bulb at the tip of the electrode.
3. 3.For refillable models, uncover the filling port to expose the electrode reference chamber fill hole (for sealed, gel filled electrodes, disregard this operation).
4. 4.Fill the reference chamber with the appropriate pH reference filling solution. Electrodes that have been filled with the incorrect filling solution are not covered under warranty.

Reference Filling Solution Selection

• For pH combination electrodes with Calomel and Double Junction Ag/AgCl reference half cells, use 3.3M KCl reference filling solution.
• For pH combination electrodes with Single Junction Ag/AgCl reference half cells, use 3.3M KCl saturated with AgCl reference filling solution.

Standardizing the Electrode

1. 1.Connect your pH electrode to the input connector on the pH meter. Ensure that the electrode connection is secure.
2. 2.Place the electrode into a beaker containing pH 7.00 buffer. Stir solution by the electrode lightly.
3. 3.When the reading is stable, adjust the meter to read the value of the pH7.00 buffer at the temperature in the solution (see the meter manufacturer’s instructions for details regarding temperature compensation).
4. 4.Remove the electrode from the buffer. Rinse with distilled water and blot with a lab wipe.
5. 5.Place the electrode in a beaker containing pH4.01 buffer and have a stir as before. When the reading is stable, adjust the meter to read the value of the 4.01 buffer at the temperature in the laboratory.

Reading a Sample with the Electrode

Rinse the electrode with distilled water and blot with a lab wipe. Place the electrode in the online fields to measurement pH value of the online sample.

Storing the Electrode

-Short Term

Between measurements, store the pH electrode in a beaker containing pH4.01 buffer.

-Long Term

-When storing for longer periods, store the pH electrode in the storage bottle or the protective boot which came with the electrode. Ensure that the foam in the storage bottle or the cotton ball in the protective boot is totally wetted with DI water to keep a moist environment around the pH bulb and junction. Maintain the moist environment in the storage bottle or in the protective boot during storage.

Electrode Cleaning

Do not use strong solvents (e.g. acetone, carbon tetrachloride, etc.) to clean the pH electrode. Be sure to recalibrate the electrode after cleaning.

1. 1.If the electrode has become coated with oil or grease, carefully wash the electrode under warm tap water using dish-washing detergent. Rinse thoroughly with fresh tap water followed by a rinse with distilled water. Soak the electrode in pH electrode storage solution for 30 minutes after this cleaning procedure. Recalibrate the electrode before use.
2. 2.If the electrode has been exposed to protein or similar materials, soak in acidic pepsin. Rinse thoroughly with distilled water. Recalibrate before use.
3. 3.If the previous cleaning procedure fails to restore response, soak the electrode in 0.1N HCl for 30minutes. Rinse thoroughly with distilled water. Recalibrate before use.
4. 4.If electrode response is not restored still, replace the electrode.

Products Warranty

Products designed and sold for in laboratory applications are warranted to be free from defects in materials and workmanship for a period of six (6) months. Provided that the products are used in accordance with the instructions provided herein and that the products have not been subjected to breakage, alteration, misuse, abuse or used in an application not normally intended for the product. In the event of a warranted failure within the warranty period, contact our customer service department.

Please the prepared to discuss the details of the difficulty. If necessary, we will issue a Return Authorization Number(RAN). Materials or goods returned without an RAN will not be accepted. Return the product to us freight prepaid.

The warranty described above is exclusive and in lieu of all other warranties whether statutory, express or implied including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose and all warranties arising from the course of dealing or usage of trade. The buyer’s sole and exclusive remedy is for repair or replacement of the non-conforming product or part thereof, but in no event shall we or our dealers or agents of any tier be liable to the buyer or any person for any special, indirect, incidental or consequential damages whether the claims are based in contract in tort (including negligence) or otherwise with respect to or arising out of the product furnished hereunder.

No other representations of warranty made by any person, including our dealers, employees or agents shall be binding unless made in writing and signed by an official of us.

MODEL : P4T12-F07L5-34



Technical feature:

• Combination electrode
• pH range : 0～14pH
• Temperature range : 0～110℃
• Cable length : 7M
• Connection : G,R,E,T,T – U Terminal
• ATC : PT1000(Standard)
• Body Material : PPS
• Long life
• Sensitive response : the measured value 95%can be reached up in several seconds
• Contimuous and stable measurement
• Pressure resistance : 0.6MP and the zero potential E0=7pH
• The external dimension : Approximately φ29 x 167mm