I. Overview 
 Oil moisture meter for how much oil in water measurement, the measurement of the oil transfer and on-line measurement is an important parameter, called for the transfer of the oil measurement accuracy, the general requirements for online measurement of high sensitivity sensor . This instrument measured in power plant water content turbine oil, to ensure the safe operation of generators. The usual method is still the principle is the use of capacitors, the capacitance sensor pole dielectric constant between the medium changes, the low dielectric constant of oil, water, oil dielectric constant is much larger than the dielectric coefficient, which measures the oil mixing with water percentage. WO oil mixing with water is the typical application rate of the sensor for measuring the water content turbine oil. The RF capacitance sensor based on the principle instrument, and chips made by the United States SailsorS instruments, mainly used in oil, mixing with water rate of 0-5% or 0-10% places 
 Second, the technical parameters 
 1, the alarm range :0-10% 
 2, the alarm point setting: type set 
 3, display: LED display, directly show water content (0-10%) median = 1 
 4, Power: 24V (DC) or 220V (AC) 
 5, temperature :0-100 ℃ 
 6, output: Relay IA/22OV or 2A/30VDC 
 7, explosion-proof grade: d Ⅱ CT4 
 8, protection class: IP65 
 9, pressure: <1Mpa 
 10, power consumption: 1.2W 
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