Moisture Analyzer NastyBoy™

NastyBoy™

The NastyBoy, MEECO's new on-line analyzer for moisture in chlorine, stands up to the toughest applications. Combining durabiliy and accuracy, the NastyBoy features an advanced flow system design, using corrosion-resistant materials throughout. The unit functions as a 24VDC, two-wire transmitter, with exceptional mounting flexibility and low installation costs.


A dual NEMA 4X enclosure assembly isolates the electronics from the flow system. Inert gas purge ports prevent build up of hazardous, corrosive gases. Best of all, NastyBoy's field-proven, electrolytic technology provides accurate and reliable measurement -- without field calibration. Based on Faraday's Law of Electrolysis, the NastyBoy's sensor absorbs and electrolyzes moisture down to fractional parts-per-million (ppm's).
One hundred percent of the sample moisture is absorbed by a phosphorus pentoxide film that covers two spirally wound electrodes. By applying an electrical potential (voltage) to the electrodes, each absorbed water molecule electrolyzes, generating a finite current. This current is precise and proportional to the amount of absorbed water. It is, therefore, an exact direct measure of the water vapor present in the sample gas. That's why the electrolytic cell requires no calibration and is specific to water.
Performance Specifications
Accuracy:+5% of reading or 0.4 ppm, whichever is greater
Analog output:4-20 mA into load of 475 ohms max. @ 24 VDC
Bypass flow:0 to 2 scfh
Monitoring range:0 to 200 ppm
Minimum detectable value:Below 1 ppm
Response time:95% in 5 minutes for step change from 1 to 10 ppm
Sample pressure:3-50 psig
Sample flow:100 sccm
Power requirements for heater:115/220 VAC, 50/60 Hz. Heater assembly prevents liquid formation in sample streams where ambient temperature fluctuates widely.
Heater is provided as standard.
Ambient temperatures:-10 to 60 degrees Celsius
Mechanical Specifications
Electrolytic cell:Cl2 type
External connectors:Gas connections are ⅛ -inch compression type
Electrical connections are ½ -inch conduit
Housing:Two NEMA 4 boxes
Materials of construction:Kynar™, Teflon™, stainless steel and glass
Overall dimensions:19"(h) x 9.25"(w) x 6.09"(d)
Flow system box is 11.25"(h) x 9.25"(w) x 6.09"(d)
Electrical box is 7.25"(h) x 9.25"(w) x 5.09"(d)
Overall weight:17 lbs. (Flow system box is 10 lbs. and electrical box is 7 lbs.
Cool options:Local digital display CE Mark and FM approval pending

© 2020 Rainer Lammertz