Conductivity Inductive
Optical sensor for inductive conductivity.
The inductive conductivity sensor has 2 toroidal coils which are housed in a plastic casing and therefore do not come into contact with the surrounding solution. For this reason, it is physically impossible for the sensor surface to become soiled, coated or contaminated. Since the inductive conductivity sensor does not determine the conductivity via electrodes, but via electrical fields, no polarization effects occur. Thus the sensor provides more accurate measurement results, especially for measurement media with high conductivities. The sensor housing is made of Noryl, which is extremely resistant to chemicals. |
Measurement technology | Change of inductance | |
Measurement principle | Change of inductance with two toroidal coils | |
Parameter | Conductivity | |
Measurement range | 0.5 mS⁄cm – 2000 mS⁄cm | |
Measurement accuracy | ± (2% + 20 μS/cm) | |
Drift | 0.1 % / Year | |
Turbidity compensation | No | |
Temperature compensation | Via NTC | |
Data Logger | No | |
Response time | T90, depending on equilibrium | |
Measurement interval | 10 seconds | |
Housing material | Noryl | |
Dimensions (L x Ø) | 119 mm x 52 mm | |
Weight | 0.1 kg | |
Interface | RS-485 Modbus RTU (Baud rate = 9600) | |
Power consumption | < 75 mW | |
Power supply | 7‒40 VDC | |
Connection | 8-pin M12 connector | |
Maintenance effort | ≤ 0.5 h/month typical | |
Maintenance interval | 24 Months | |
Calibration method | Two-point calibration in air and with standard measuring solution during initial installation, followed by validation | |
System compatibility | Modbus RTU | |
Warranty | 1 year, EU & USA: 2 years | |
Max. pressure | 10 bar | |
Protection type | IP68 | |
Sample Temperature | -10 °C ... +70 °C (max. 85 °C) | |
Ambient Temperature | -10 °C ... +70 °C (max. 85 °C) | |
Storage Temperature | -20 °C ... +80 °C | |
Inflow velocity | Max. 3 m/s, Steady and constant flow | |
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