Hangzhou Qiwei Instrument Co., Ltd. is one of the leading manufacturers and suppliers of benchtop multi-parameter sodium ion concentration meter in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk benchtop multi-parameter sodium ion concentration meter in stock here from our factory. We also accept customized orders.
product key technologies

This benchtop multi-parameter sodium ion concentration meter relies on the electrochemical Nernst equation for operation. Its measuring system consists of a sodium ion selective sensor, a reference electrode (such as calomel electrode) and sample solution to form a complete galvanic cell.When the selective sensor is submerged in the solution, its membrane produces a potential linked to sodium ion activity. The voltage gap against the reference electrode forms the cell's electromotive force. The high-resistance circuit inside the instrument detects this voltage difference, then calculates and outputs pNa values or concentration data based on the Nernst equation.
Featuring superior accuracy and an extensive measurement span, the sodium ion tester is extensively adopted in water inspection and process regulation for multiple industries. It monitors minute sodium contents in ultrapure water used by power plants and semiconductor manufacturers, and manages operational procedures and product standards within chemical, medical and food sectors. It is also applicable to salinity detection of environmental samples, potable water and farm soil. Additionally, this unit is commonly used for electrolyte quality management in academic research, teaching and battery production.
Working condition
|
Ambient Temperature |
(5~40)℃ |
|
Relative Humidity |
≤80% |
|
Power Supply |
AC 220V ± 22V; Frequency 50 ± 1HZ |
|
Interference |
There is no interference from other magnetic fields except the Earth's magnetic field |
|
Vibration |
No significant vibration |
Technical parameters
|
Model |
DWS-51 |
|
Measuring Range |
pNa: (0.00~9.00) pNa; Na+: 0.23μg/L~23g/L; mV: (-1800~1800) mV |
|
Resolution |
0.01pNa |
|
Basic Error of The Electronic Unit |
±0.02 pNa ±1 word |
|
Instrument Basic Error |
±0.05 pNa |
|
Calculation Error |
±0.3% |
|
Repeatability Error |
≤±0.03 pNa ±1 word |
|
Stability of the Electronic Unit |
±0.02pNa/3h |
|
Temperature Compensation Range |
(5.0~50.0)℃ |
|
Size |
230×200×80mm |
|
Weight |
1.5KG |
FAQ
Q:Can you do our design?
A:Of course, your customized design (OEM) is available.
Q:Are you a factory direct supplier?
A:Yes,we are the original factory.Order directly from our factory with no extra intermediate fees. We offer faster delivery, better service and more competitive prices.
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