Specification
*measure range: 0.00pH-14.0 0pH
*resolution: 0.01ph
*accuracy: +/-0.01ph
*Power supply: 2*1.5V ( keep using more than 500 hours)
*operating temperature: 0℃--80℃
*calibration: two points automatic calibration
*dimension: 153mm*29mm*16mm
*weight: 52g
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” key.
4.immerse the ph meter electrode in the solution to be tested(can not be over the immersion line )
5.stir gently and wait around 30 seconds till the reading stabilized.
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. Disolve each buffer solution in 250 ml of distilled water (approx. 1 cup each)
3. Immerse the electrode into the pH 6.86 solution.
(under the temperature of 25)
4. Press the "CAL" (calibration) button for 3 seconds and release
-Display will start flashing 6.86
-Wait until the display stops flashing.
Rinse the electrode with distilled water and dry it with filter paper.
5. Immerse the electrode in pH 4.00 solution,
- Press "CAL" button for 3 seconds ,then press and release immediately second time
- Reading will start flashing 4.00
- Wait until display stops flashing
Rinse and dry the electrode with distilled water as before.
6. Test calibration by inserting electrode into pH 9.18 buffer solution,
gently swirl electrode until digital display stabilizes. Display should read between 9.16 and 9.20.
(if necessary repeat calibration procedure)
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 either 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 :Plese provide purchase invioce or proof before returning your instruments back .
1: 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 , TRADE ASSURANCE , MonEY GRAM 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.
