| Customization: | Available |
|---|---|
| After-sales Service: | Provided |
| Warranty: | Provided |
|
Still deciding? Get samples of US$ 180/Piece
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
1.Overview
Laboratory pure water grinding mouth PH glass electrode is composite electrode including the measuring electrode and the reference electrode together. This laboratory pure water electrode is dedicated to testing pH value of pure water.
2.Technical indexes
1. Measuring range: 0-14PH
2. Measuring temperature: 0-80 ºC
3. Theoretical slope: ≥ 97% (25ºC)
4. Zero pH value: 7 ± 0.5PH (25 ºC))
5. Alkaline error: ≤ 15mV (25 ºC)
3. Use and maintenance
(1) The electrode must be calibrated by standard buffer solution of known pH value before measurement, in order to improve the measurement
accuracy, buffer pH to be reliable, and more close to the measured value is better, generally not more than 3 PH.
(2) When adding liquid electrodes use, need to remove the reference electrolyte rubber cap which at injection pipe to ensure internal and external
pressure balance.
(3) The front end of the electrode sensitive glass bulb can not contact with a hard object, any breakage and snag will make the electrode failure.
(4) Electrode using BNC socket, must maintain a high degree of clean and dry, if have defiled, can use medical cotton and anhydrous alcohol wipe
and dry, absolutely prevent the two output terminal short circuit, otherwise it will lead to inaccurate measurement and failure.
(5) The front end of the electrode sheaths has proper electrode soaking solution, make the electrode head to keep wet, in order to maintain the
glass bulb and activation of the liquid junction. Found protective sleeve soaking liquid dry, can add a small amount of electrode soaking liquid or
distilled water.
(6)The preparation of electrode soaking solution: take the PH4.01 buffer a packet, dissolved in 250 ml deionized water, add 56 grams of pure
analysis of potassium chloride, furnace proper heating, stirring until completely dissolved. If the short time immersion electrode activation (usually
dry stored, the use of the former should soak activated hours), also can use 3.3M potassium chloride solution, preparation is as follows: take 25
grams of pure analysis of potassium chloride dissolved in 100 ml deionized water into.
(7) Before measurement, attention the bubbles in the glass bulb should be rejection to,
otherwise it will cause the error of measurement, when measuring electrode is placed in the test solution still after stirring static placement, to
speed up the response.
(8) Before measurements and after measurement, should clean the electrode with deionized water to ensure measurement precision, after
measuring sticky sample, the electrode should be repeatedly washed after rotating to shield to remove the specimen, stick in the glass membrane,
or first with a suitable solvent cleaning with deionized water to remove the solvent.
(9) Electrode to avoid long-term immersion in distilled water or protein solution and acidic fluoride solution, and to prevent contact with silicone grease.
(10) Electrode using period of about a year, after aging should be replaced with new electrodes in a timely manner. Electrode in use are man-made
causes of loss or force majeure, the company shall not be responsible.
(11) The company can be customized for the special purpose of electrode according to user requirements.
Notes:
1. Before use, the electrode protection bottle screw, in electrode grinding mouth part matched sleeve, to better protect the electrode.
2. Electrode is the glass products, easily broken. Against falling, shockproof, careful collision.
){kind=link}