Product Description
DDS-307A Lab Conductivity Meter
DDS-307A is an improved conductivity meter; based on DDS-307 on the market, it is added with the automatic temperature compensation function, with high price-performance ratio. It can be widely used for continuous monitoring of conductivity values of the solutions in thermal power plants, chemical fertilizer, metallurgy, environmental protection, pharmaceutical industry, biochemical industry, foodstuff and running water.
Features
Double-row nixie tube: To show conductivity value and temperature values respectively |
Computer-based: It adopts the high-performance CPU chip, high-precision AD conversion technology and |
SMT technology to complete the multi-parameter measurement, temperature compensation and automatic |
range switching, with high precision and good repeatability. |
Reliability: Single board structure, touch button, no switch knob or potentiometer |
Automatic conversion of measuring frequency: To avoid the electrode polarization and improve the |
Measurement accuracy |
25℃ Conversion: Temperature compensation automatic measurement/manual input, with the waterproof and |
anti-corrosion design |
Network function: RS232 bi-directional communication; it can be equipped with a printer or TLab8.0 |
communications and data processing software |
Measurable high-purity water: Equipped with titanium alloy electrode with the constant of 0.01 cm-1 and an |
airtight measuring cell; automatic prompting for measuring terminal. |
Technical Indexes
1. Display: Double-row Nixie tube displays the conductivity and temperature values respectively. |
2. Measuring range: (0-30000) μ s/cm, 0-99.9 ℃ |
3. Electrode constant: 0.01-30 μ s/cm (Electrode: K=0.01) |
0.1~300 μ s/cm (Electrode: K=0. 1) |
1.0~3000 μ s/cm (Electrode: K=1.0) |
10~30000 μ s/cm (Electrode: K=10.0) |
4. Resolution: 0.001μ s/cm, 0.1℃ |
5. Electrode constant: 0.001~15.0 cm-1 set by the software |
6. Temperature compensated range: automatic: 0-99.9 ℃, manual: 0-99.9 ℃ |
7. Temperature coefficient: 0~10%/℃ (with 25℃ as the reference temperature) |
8. Accuracy: ±l0%FS, ±0 3℃ |
9. Communication interface: RS232 bi-directional communication interface |
10. Power supply: AC220V ± 22V, 50Hz ± 1Hz, external power supply |
11. Working conditions: ambient temperature: 0-60℃; relative humidity: ≤90 |
12. Power-down memory: > 5 years |
Standard configuration
One secondary instrument; one bright or platinum black conductivity electrode with
constant l.0; one temperature electrode; a set of electrode support; one power supply.