Electrical Inductance Corrosion Monitoring System
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Electrical Inductance Corrosion Monitoring System
The inductance-based corrosion monitoring system is a rapid technique for measuring the corrosion rate of metals in a given environmental medium. On-site equipment and pipelines are fitted with holes through which probes are welded onto connecting devices. These probes extend into the pipeline interior via the connecting devices, ensuring that the measurement specimens come into contact with the medium inside the pipeline. The inductance probes used as measurement specimens are made from the same material as the pipeline itself. If material selection is required, the material of the measurement specimens can be determined according to the specific material to be tested. Ultimately, changes in the corrosivity of the medium are reflected by monitoring the trend of corrosion-induced thinning and the corrosion rate of the probes.
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Inductance Corrosion Monitoring System
- Product Description
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Product Category
Parameter Inductive probe mounting method Gland type Flanged Plug-type Medium temperature 0°-240° 0°-430° 0°-100° Pipeline pressure 0-3MPa 0-42MPa 0-42MPa (Note: When disassembling and assembling the plug-type probe under pressure, the operating pressure should not exceed 10 MPa.)
System Architecture
Name Option System Part Monitoring machine / Server Required Display Required Industrial control cabinet Optional Probe section Probe Required Flow Rate Protection Cap Optional Probe protection Optional Power and Communication Conversion Section Power and Communication Conversion Module Required RS485/4-20mA Converter Optional RS485 repeater Optional Adapter section Probe adapter Required Cable adapter Required Probe output Sealed packing gland Optional accessories (select as needed) Stopcock, carrier Optional accessories (select as needed) Host Data collector Required Technical Parameters
Inductive probe Model ZK 9200 ZK 9200HT ZK 9200 ZK 9201 ZK 9201HT ZK 9211 ZK 9251HT ZK 92022 ZK 92023 ZK 92021 Common materials 20#, Cr5Mo, 304, 321, 316, etc. Applicable temperature ≤240℃ ≤430℃ ≤240℃ ≤240℃ ≤430℃ ≤240℃ ≤430℃ ≤240℃ ≤240℃ ≤240℃ Applicable pressure ≤2MPa ≤2MPa ≤2MPa ≤ 40MPa ≤ 10MPa ≤ 40MPa ≤ 10MPa ≤ 30MPa ≤ 30MPa ≤ 27.6 MPa Based on the pressure-bearing capacity of the flange sealing surface. The applicable pressure shall be based on the threaded seal’s pressure-bearing capacity. Measured specimen useful loss 0.25 mm to 1.0 mm Test piece format Tubular Tubular Flaky Tubular Tubular Flaky Tubular Tubular Tubular Tubular Safe life 4 years Useful life Optional Probe length Test specimen thickness / annual corrosion rate = service life. For example: If the test specimen thickness is 0.25 mm and the corrosion rate is 0.125 mm/year, the service life is ≤ 2 years. Installation method Can be installed under pressure Flange fixed installation Threaded connection Inductance Data Collector Category Online type Offline Model ZK9800 ZK9810 ZK9820 ZK9850-W ZK9850-WL ZK9410-L ZK9850 ZK9840 Communication method RS485 RS485
4-20mARS485 Wireless WIA-PA Wireless LoRa 4G communication Storage-based Storage-based Communication distance 1200m 1200m 1200m 400m 1000m Unlimited Power supply method Wired DC 12-36V Lithium battery 12V Temperature measurement function Non-temperature-measurable Temperature-measurable Measurement accuracy 10nm Ambient temperature -40℃~+60℃ Protection level IP67 Explosion-proof rating Exd [iaGa] IIC T6 Ex d IIC T6 
From February 20, 2025, to March 20, 2025, the corrosion-induced thinning amounted to 15,749 nm (0.015749 mm), with an annual corrosion rate of 0.2053 mm/year.
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