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High Quality pH Sensor for Laboratory (E-201, SYM-300)1
Laboratory InstrumentsSYM-300)pH ElectrodepH Sensor
Shanghai Boqu Instrument Co., Ltd.
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Product Description ModelE201E201-CMeasurement range0 ~ 140 ~ 14Measuring temperature5 ~ 60 oC5 ~ 60 oC Zero7 ± 0.57 ± 0.5Resistance( MΩ)≤250≤250Measurement accuracy0.010.01Electrolytic bridge materialfibrefibreShell materialPCPCFilling liquid (mol/l)3.0KCl3.0KCl2, Maintenance and precautions 1) When the electrode is not in use or long home for the first time, the ball electrode immersion has 3.3 mol / L KCl activated 2 hours. 2) When measuring, you should be washed in distilled water and wipe dry with paper to prevent impurities into the electrode bulb and the liquid junction should also immersed in the test fluid. 3) PH composite electrode E-201, do not need to add supplementary reference solution. 4) PH electrode has a long soak in distilled water should be avoided or protein solution and washed with acid chloride solution and to prevent contact with silicone grease. 5) with standard solution preparation: PH4.01, PH9.18 two standard solutions were bagged dose preparation. Formulated 3.3 mol / L potassium chloride solution: in the hand on the drug analytical balance 246 g of potassium chloride were weighed, dissolved in 1000 ml of deionized water Serve. Company CertificationPacking&DeliveryFAQQ: Are you trading company or manufacturer ?A: We are factory.Q: How long is your delivery time?A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 daysif the goods are not in stock, it is according to quantity.Q: Do you provide samples ? is it free or extra ?A: We can offer the sample, it is extraQ: What is your terms of payment ?A: 100% T/T in advance ,balance before shippment.
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