Hot sale laboratory pen type digital pH meter pH-280
|Power:Other||Usage:Other, lab equipment|
pH:25℃ 3points 4.00/6.86/9.18
1.Remove the protective cap.
2.Clean the electrode with distilled water,and dry up the water attached to the electrode with filter paper.
3.Press the “ON/OFF” key to turn on the power.
4.Insert the instrument into the test solution,with the measuring electrode immersed in.Stir gently to get stable
numerical result displayed on the screen.The numerical value below the screen is the temperature of solution.
5.Press “Hold”key to keep the current value,press “Hold” key again to relese it for remeasure.
6.Press “ON/OFF” key to turn off the power after use, then clean the electrode and close the cap.
This instrument will automatic shutdown if it does not work in 5mins.
Prepare 6.86 or 7.00 pH standard buffer solution, press the “ON/OFF” to turn on the instrument,
dip the pH meter into buffer solution,stir gently for a while,then place the meter in quiescent state,
press the “CAL” key for 3seconds after get stable pH value,the insrument will show “CAL”,
then the instrument will calibation and shows”SA” for remenber the result after 2 seconds,
calibration finished if it shows”END”.
The instrument’s pH range must be recalibrated whenever:
The electrode has been used(laid) for long time from the last calibration.
The electrode has been used in particularly taxing conditions
The utmost accuracy accuracy is required.
If the screen darkens or gets fuzzy,or the error is large,batteries should be replaced.
Just pull out the battery case and replace it.Pay attention to the directions.
These instruments are warranted from all defects in material and manufacuring for a period of one year from the date of purchase.
If during this period,the repair or the replacement of parts is required where the damage is not due to negligence or erroneous operation by user,
please return the parts to either dealer or our effices,and the repair will be effected free of charge.
Hangzhou Lohand Biological Co.,Ltd is a professional company that manufactures and exports laboratory instruments and equipments.We have our own registered brand"LOHAND" and own factory,with strong R&D center,sales team,customer service team and QC team,which grows very fast and obtains good reputation in the markt.
Our major products include: Refractometer,Test paper,pH meter,Electrode,TDS meter,Salinity meter, DO meter,ORP meter,Conductivity meter,Turbidity meter,Color comparison tube,test kit etc.Most of the products have CE certificate.All products can be customized according to buyers' special requirements.
Own factory and facilities
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.
Send your message to this supplier
- Hangzhou Lohand Biological Co., Ltd.
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PH meter ,refractometer ,test paper ,TDS meter ,ORP meter
South America , Southeast Asia , Domestic Market , Western Europe , Africa , North America , Eastern Europe , Mid East , Oceania , Eastern Asia
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