DDS-11A Precision Conductivity Meter
The DDS-11A Precision Conductivity Meter is a laboratory-grade instrument designed for measuring the electrical conductivity of water and aqueous solutions across a wide range of conductivity levels. It is suitable for laboratories, educational institutions, water-treatment facilities, chemical industries, environmental testing, research laboratories, and industrial quality-control applications. With a measuring range of 0 to 2 × 10⁵ µS/cm, the instrument can be used for testing samples with both relatively low and high conductivity.DDS-11A Precision Conductivity Meter
Conductivity measurement is an important analytical technique for evaluating the ionic characteristics of water and liquid solutions. The conductivity value can change according to the concentration of dissolved salts, minerals, acids, bases, and other ionized substances present in a sample. The DDS-11A provides a practical way to monitor these changes and perform routine conductivity testing.DDS-11A Precision Conductivity Meter
The instrument operates on an AC 220 V ±10% power supply at 50/60 Hz. For reliable and accurate operation, it is recommended to use the meter under suitable environmental conditions. The specified operating temperature is 0°C to 40°C, with relative humidity of 85% or below. The installation area should be free from significant vibration and strong magnetic interference, as these environmental factors may influence measurement performance.DDS-11A Precision Conductivity Meter
The DDS-11A provides a measuring range of 0 to 2 × 10⁵ µS/cm with an accuracy of ±1% F.S. The instrument also supports temperature compensation within the range of 15°C to 35°C, helping users account for the effect of temperature on conductivity measurements within the specified compensation range.
A key feature of this conductivity meter is its range of specification constants: 0.01, 0.1, 1, and 10. Different electrode constants can be selected according to the conductivity level of the sample being measured. The supplied electrode specification constants include 0.01, 0.1, 1, and 10, with the available electrode configurations including 1 light and 1 platinum black types.DDS-11A Precision Conductivity Meter
Equipment Operating Conditions
- Power Supply: AC 220 V ±10%, 50/60 Hz
- Operating Temperature: 0°C to 40°C
- Relative Humidity: ≤85%
- Environmental Requirement: No significant vibration or strong magnetic interference
Main Technical Parameters
| Parameter | Specification |
|---|---|
| Measuring Range | 0–2 × 10⁵ µS/cm |
| Accuracy | ±1% F.S. |
| Temperature Compensation Range | 15–35°C |
| Output Measuring Signal | 0–20 mV |
| Instrument Dimensions | 240 × 170 × 60 mm |
| Instrument Weight | Approx. 0.7 kg |
| Power Consumption | 3 W |
| Specification Constants | 0.01, 0.1, 1, 10 |
| Electrode Constants | 0.01, 0.1, 1, 10 |
| Low-Conductivity Range | 0–3 µS/cm |
| Range with 0.1 Constant | 0.1–30 µS/cm |
| Range with 1 Constant | 1–100 µS/cm |
| Higher Range with Platinum Black | 100–3000 µS/cm |
| High-Conductivity Application | More than 1000 µS/cm |
Applications
The DDS-11A Precision Conductivity Meter is suitable for:DDS-11A Precision Conductivity Meter
- Laboratory water testing
- Purified and treated water monitoring
- Water-treatment applications
- Chemical laboratories
- Environmental analysis
- Industrial process monitoring
- Quality-control laboratories
- Educational laboratory experiments
- Research and development
- Aqueous solution testing
- Conductivity-based water-quality assessment
Frequently Asked Questions (FAQ)
1. What is the measuring range of the DDS-11A?
The DDS-11A has a broad conductivity measuring range of 0 to 2 × 10⁵ µS/cm, allowing it to be used for various low- and high-conductivity samples.
2. What is the accuracy of the DDS-11A?
The specified measurement accuracy is ±1% F.S. (Full Scale).
3. What power supply does the meter require?
The instrument operates on AC 220 V ±10%, 50/60 Hz.
4. What is the temperature compensation range?
The specified temperature compensation range is 15°C to 35°C.DDS-11A Precision Conductivity Meter
5. What electrode constants are available?
The DDS-11A supports specification constants of 0.01, 0.1, 1, and 10, allowing different conductivity ranges to be measured with suitable electrodes.DDS-11A Precision Conductivity Meter
6. What is the operating temperature range?
The recommended equipment operating temperature is 0°C to 40°C.DDS-11A Precision Conductivity Meter
7. Can the DDS-11A measure high-conductivity samples?
Yes. With the appropriate electrode constant, the instrument can be used for higher-conductivity samples, including applications above 1000 µS/cm and up to its specified overall measuring range.
8. What is the output measuring signal?
The specified output measuring signal is 0–20 mV.DDS-11A Precision Conductivity Meter
9. Where can this conductivity meter be used?
It can be used in laboratories, water-treatment facilities, chemical industries, environmental testing facilities, educational institutions, research laboratories, and industrial quality-control environments.
10. How should the conductivity electrode be maintained?
The electrode should be kept clean, handled carefully, and maintained according to the manufacturer’s instructions. Proper cleaning and calibration are important for reliable conductivity measurements.DDS-11A Precision Conductivity Meter
Reviews
There are no reviews yet.