Laboratory Conductivity/TDS Meter LH-E4DDS
This instrument is a laboratory multi parameter conductivity tester developed by our company in accordance with environmental monitoring technical specifications, covering multiple measurement indicators such as conductivity, resistivity, salinity, total dissolved solids, and temperature. The instrument complies with the 0.5 level index of the national standard "JJG 376-2007 Conductivity Meter" calibration regulation and is widely used in medical, environmental protection, scientific research, universities, and industrial and mining enterprises. It is an essential routine analytical instrument for chemical analysis.
1, Compliant with standards: Compliant with the 0.5 level index of the national standard "JJG 376-2007 Conductivity Meter" calibration regulation, and meets all technical indicators for national standard testing.
2, 7.0-inch touch screen LCD display, optional Chinese and English operation interface, user-friendly program design, intuitive display, easy operation.
3, Multi parameter measurement: integrating five modes: conductivity COND, resistivity RES, salinity SAL, total dissolved solids TDS, and temperature.
4, Conductivity calibration: Built in two standard solution mode groups and custom calibration editing.
5, Accurate calculation: Built in linear compensation and high-purity water nonlinear temperature compensation automatically switch and apply based on measured values
6, Multi mode units: automatic switching of mode units, μ S/cm, mS/cm, M Ω· cm, K Ω· cm, Ω· cm, mg/L, g/L.
7, New UI design, optimized data processing, one click switching between Chinese and English interfaces.
8, It has three measurement modes: real-time measurement, interval measurement, and timed measurement.
9, Intelligent function: The instrument has intelligent functions such as automatic/manual temperature compensation, automatic/manual data saving, calibration reminder, threshold alarm, etc
10, Capable of storing 5000 pieces of data per project, supporting data retrieval, deletion, and printing, with no data loss after power failure.
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Host parameters |
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Test Item |
Conductivity |
Resistivity |
Salinity |
TDS |
Temperature |
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Measurement range |
（0~200）mS/cm |
5Ω·cm~20000KΩ·cm |
（0~200）‰ |
（0~200）g/L Automatic switching of units |
（-25~125）℃ Optional units:℃、℉ |
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resolution |
0.01μS/cm |
0.1Ω·cm |
0.01‰ |
0.01mg/L |
0.1℃ |
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Basic error |
Meets the requirements of Level 0.5 index in the calibration regulation of JJG 376-2007 Conductivity Meter Electronic unit reference error: ≤± 0.5% FS; Electronic unit repeatability: ≤ 0.17% FS; Instrument reference error: ≤± 0.8% FS Instrument repeatability: ≤ 0.4% FS; temperature measurement indication error: ≤± 0.4 ℃ |
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Timed measurement |
Can set the total measurement time and recording interval time |
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Data storage |
5000 |
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Physical parameters |
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Display screen |
7 inch LCD display screen |
Printer |
Optional portable printer |
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Communication method |
USB |
Total weight |
1.1Kg |
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Instrument size |
226*158*62mm |
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Working parameters |
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Operating temperature |
（0~60）℃ |
Power |
6W |
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Working power supply |
DC12V，1A |
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