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Help CenterPortable Waterproof Dissolved Oxygen Meter DO-161 Quality Choice
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DO Meter | |||
Mode |
% |
Mg/L |
Temperature |
Range |
0 to 199.9 |
0~19.99 |
0.0-50.0℃ |
(32-122℉) | |||
resolution |
0.1 |
0.01 |
0.1℉ (0.1℃) |
Accuracy |
±1.5% FS |
±1.5% FS |
±0.9℉(±0.5℃) |
Responding Time |
1min |
1min |
1min |
Calibration |
At most 2 points |
||
Temperature Compensation |
Auto (ATC) from 32-122℉ or 0-50℃ |
||
Operating Temperature |
32-122℉(0~50℃) |
|
|
Battery |
2*AAA |
||
Probe |
Plastic electrode |
||
DO Calibration
Calibration
- Turn on the meter or return to the Measurement Mode
- Select % Mode and Immerse the DO probe in the zero-oxygen solution until READY shows.(Get high accuracy ,please immerse the probe for 3min or longer .
The next steps must be performed only when the expectation value will be below 5%.)
- Press MODE a few times until the Calibrating is flashing on the Second Display, press HOLD/SET to enter Calibration Mode. (Calibrating stop flashing)
- The meter will automatically recognize the standard solution and automatic calibration. During this process, calibration value will be shown on the Second Display.
- After Calibration, meter automatically returns to Measurement Mode.
100% Calibration
In the Measurement Mode
- Turn on the meter or return to the Measurement Mode
- Select % Mode and Place the probe at 1cm above the liquid until READY shows.(Get high accuracy ,please keep the probe for 1min or longer .)
- Press MODE a few times until the Calibrating is flashing on the Second Display, press HOLD/SET to enter Calibration Mode. (Calibrating stop flashing)
- The meter will automatically recognize the standard solution and automatic calibration. During this process, calibration value will be shown on the Second Display.
- After Calibration, meter automatically returns to Measurement Mode.
At most 2 points calibration: 0% and 100%, when the solution cannot be recognized, show “Err” for 2s. Then automatically returns to Measurement Mode.
NOTE: For 100% calibration, air calibration way is a simple, quick, approximate method.
(For high accuracy, we recommend that users should regularly calibrate. In the following situation, users must recalibrate meters.)
Replace probe
l after measuring aggressive chemicals
Restore Factory Default
Press MODE six times, R flash on the Main Display,press HOLD/SET to
restore factory default and meter will return to Measurement Mode after LCD full-shown for 1S.
AUTO POWER-OFF
The meter will automatically power off without any operation for 8 min.
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.
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.
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.
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