AODDJ Conductivity Electrode
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- Technical specifications
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- AODDJ Conductivity Electrode
I. Measurement Principle
The instrument measures the conductivity of a medium by determining the AC impedance between the central electrode and the peripheral electrodes. Selecting an electrode with an appropriate cell constant, based on the expected conductivity range of the water sample, is crucial for accurate measurement. In particular, when measuring ultrapure water (conductivity < 1 μS/cm) or deionized water (conductivity < 3 μS/cm), it is essential to use electrodes with cell constants of 0.1 or 0.01, and, if necessary, employ a sealed measurement cell to ensure precision; otherwise, significant measurement errors may arise. The fundamental principle for electrode selection is as follows: choose an electrode with a suitable cell constant according to the anticipated conductivity range of the sample, referring to the table provided. A common mistake in electrode selection is using an electrode with a high cell constant to measure low-conductivity samples. For example, employing a 1.0‑cell‑constant electrode to measure water with a conductivity below 3 μS/cm will not yield accurate results. This is because low‑conductivity media exhibit very poor electrical conductivity; using a high‑cell‑constant electrode under such conditions produces an extremely weak and unstable signal, thereby substantially increasing measurement error.
II. Main Features
Stainless steel material;
Built-in NTC temperature compensation;
It can be processed into a variety of installation components.
Optional flow cup;
Simple structure, low maintenance requirements;
High precision and fast response;
Supports both threaded and flange mounting options.
The equipment has a long service life.
III. Application Scenarios
This product is suitable for conductivity measurement in industrial applications such as environmental protection, wastewater treatment, and production processes in chemical and pharmaceutical plants.
IV. Technical Parameters
Project Parameter Details Range (Electrode Constant K) K=0.01, 0.01~20 μS/cm
K=0.1, 0.1~200 μS/cm
K=1.0, 1~2000 μS/cm
K=10, 10 μS/cm ~ 20 mS/cm
K=30, 30 μS/cm ~ 60 mS/cm
Housing material 316L, 304, ABS, UPVC Process connection G3/4, 1-inch sanitary clamp, DN50 flange, custom-made Cable length Standard configuration: 3.3 meters Warm-tonifying NTC10K (0–99℃), NTC2.252K (0–70℃)
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Address：
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No. 12 Xingye West Road, Mawei District, Fuzhou City
Tel：
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Email:
aotai03@fjautec.com Mr. Zhou
aotai01@fjautec.com Mr. Liao
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