维萨拉HUMICAP®油中水分和温度变送器MMT162
 

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    Overview
     

     Overview

    		 

      • Compact, accurate and economical
      • Proven Vaisala HUMICAP® technology
      • Continuous measurement of moisture in oil
      • Excellent pressure and temperature tolerance
      • Compatible with the Vaisala MI70 indicator
      Technical Specifications
       

       Technical Specifications

      		 

      Measured Values

       

      Water activity
      ​
      		 ​Measurement range ​0 ... 1 aw
      ​
      		 ​Accuracy (including non-linearity, hysteresis and repeatability) ​
      ​
      		 ​    0 ... 0.9 ​± 0.02
      ​
      		 ​    0.9 ... 1.0 ​± 0.03
      ​
      		 ​Response time
      in oil flow (typical)      		 ​
      <1 min (dry-wet)
      ​
      		 ​
      		 ​
      ​
      		 ​Moisture ​Calculated moisture content in ppm for mineral transformer oil
      ​
      		 ​Temperature ​
      ​
      		 ​Accuracy at +20 °C (+68 °F) ​± 0.2 °C (± 0.36 °F)

      Operating Environment

      ​
      		 ​Operating temperature
      		 ​-40 ... +60 °C (-40 ... +140 °F)
      ​
      		 ​Oil temperature ​-40 ... +80 °C (-40 ... +176 °F)
      ​
      		 ​Pressure range ​
      ​
      		 ​    metal version ​up to 200 bar
      ​
      		 ​    plastic version ​up to 40 bar
      ​
      		 ​Oil flow ​some flow recommended

      Outputs

      ​
      		 ​Analog outputs (two channels) ​
      ​
      		 ​     current output ​0 ... 20 mA, 4 ... 20 mA
      ​
      		 ​     voltage output ​0 ... 5 V, 0 ... 10 V
      ​
      		 ​Digital outputs ​RS-485

      General

      ​
      		 ​Housing material ​
      ​
      		 ​    metal ​AISI 316L
      ​
      		 ​    plastic ​PPS + 40% GF
      ​
      		 ​Mechanical connections with bonded seal ring (washer) ​
      ​
      		 ​    metal version ​G 1/2’’ ISO or NPT 1/2’’
      ​
      		 ​    plastic version ​ G 1/2’’ ISO

      For complete specifications, please see the brochure or manual in "Documents".

       
      Services
       

       Services

      		 

      Technical Support
      Get fast, easy access to professional support over the entire life cycle of your equipment. The Vaisala HelpDesk is your single contact point for technical inquiries related to Vaisala products and systems.   

      Spare Parts
      Get rapid access to the spare parts you need to maximize the uptime of your equipment and ensure reliable and accurate operation. In addition to standard spare part delivery, we also offer an express service where parts are shipped within one business day.

      Repair Services
      Vaisala repair services include fault tracing and repair or replacement of failed components, as well as final testing to ensure your equipment is functioning properly. Repairs can be carried out on site or at one of our service centers.

      Warranty
      All Vaisala products and services are covered by a 12-month warranty as standard, with selected products covered for up to 24 months. During this period you benefit from free repair or replacement of faulty equipment. With Vaisala’s extended warranty, you get free repair or replacement for five years.

      Documents