Hotsale pH-02 automatic calibration laboratory meter pen type digital liquid urine pH meter

 digital ph meter

Operation

1.Remove the protective cap.

2.First rinse the electrode with distilled water,and suck it with filter paper.

3.Turn the meter on by Pressing the ON/OFF key.

4.Immerse the pH meter electrode in the solution to be tested.

5.Stir gently and wait for the reading to stabilize.

6.After finished,clear the electrode with pure water,turn the meter off by pressing the "ON/OFF" key.

7.Always replace the protective cap after use.

Calibration

1.Turn on pH meter

2.Immerse the electrode in pH 6.86 standard buffer solution

3.Press the "CAL" button.Wait until the display digital is 6.86pH.Then compelete pH6.86 calibration.

4.Clean the electrode with distilled water and dry it with filter paper.Immerse the electrode in pH 4.00 standard buffer solution.

5.Press"CAL"button.Wait until the digital is 4.00pH.Complete the pH 4.00 point calibration.

6.Clean electrode and dry it,put pH meter into pH9.18 standard buffer solution.Check if reading is correct between 9.17-9.19pH.

Attention:

The instrument need recalibrate in the following condition.

1.Long time no use or use very long time after calibration.

2.The electrode is used very frequently.

3.The testing accuracy requirement is very high

4.Press the "CAL" button long time in the air carelessly

pH electrode maintenance

If the electrode placed long time,and electrode exposed to air,then showing values is slow and not stable,because of electrode dry.You should immerse the electrode into water for few hours.

LowBatt

When the display value is fuzzy or unshown,the battery should be replaced promptly.Pay attention to the polarity of battery.

Warranty:

The instrument is warranted to the purchaser for a year from the date of purchase. If during these periods,repair or replacement of the instrument is required,please return the instrument to eight your dealer or to our office.The repair will be effected free of charge.(damage is not due to negligence or erroneous operation by the user)

Note:

Please provide purchase invioce or proof before returning your instrument back.

The normal package is carton box,it also can be packaged according to customers special request.

We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.

Q1: Why choose us?
A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.
2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.
3. We have purveyed customers with the lowest wholesale price.

Q2: How do you guarantee the quality?
A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.

Q3: Is OEM available?
A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.

Q4: Can we buy 1 pc for sample testing?
A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.

Q5: How to deliver the goods for trial order or small order?
A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.

Q6: What kind of payment your company accept?
A : T/T , WEST UNION , PAYPAL , ETC.

Q7: If we have not found the model from website, what should we do?
A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.