Model 3020T

Analysis Ranges

Three user-configurable ranges are standard, with an excellent linearity precluding the need to recalibrate when changing ranges. Two fully programmable concentration alarms satisfy nearly any requirement. All features offer a sophistication that assures years of service.

Convenience

Two standard 0-1 VDC and two 4-20 mADC isolated outputs provide both concentration and range identification. A bi- directional RS-232 serial interface is incorporated to relay information to a host computer for remote monitoring of critical functions.

Interface

All controls and displays are available from outside the housing. The instrument has two simple operator controls. A digital meter, an alphanumeric display, and a sample flow meter give the operator constant feedback.

• ​C      Integrally mounted cal/zero valves
  

• V      Plumbed for vacuum service
  

• F      Flame arrestors for Class 1, Div 1, Group C/D service
  

• G     Flame arrestors for Class 1, Div 1, Group C/D service with cal valves
  

• H     Flame arrestors for Group B (hydrogen) service
  

• I       Flame arrestors for hydrogen service with cal valves
  

• S      Stainless steel cell block​
  

• An explosion proof NEMA 4/7 rated enclosure

• 2-line alphanumeric display screen, driven by micro-processor electronics continuously prompting and informing the operator

• High resolution, accurate readings of oxygen content from low ppm levels through 25%

• Advanced Micro-fuel Cell designed for trace analysis, with a one year warranty and an expected life of two years

• Versatile analysis over a wide range of applications

• Microprocessor based electronics: 8-bit CMOS micro- processor with 32kB RAM and 128kB ROM
  

• Three user-definable output ranges (from 0-10 ppm through 0-250,000 ppm) assuring a perfect match for the user’s process

• Air-calibration range for convenient spanning at 20.9%

• Auto-ranging automatically selects the proper preset range for a given measurement. Manual override allows the user to lock onto a specific range of interest

• Two adjustable concentration alarms and a system failure alarm

• Extensive self-diagnostic testing at start-up and on demand with continuous power-supply monitoring

• Two way RS-232 serial digital port for use with a computer or other digital communication device

• Four analog outputs; two for measurement (0-1 VDC and isolated 4-20 mADC) and two for range identification

• NEC and ATEX rated configurations
  

• Monitoring inert gas blanketing​

• Air separation and Liquefaction

• Chemical reaction monitoring

• Semiconductor manufacturing
  

• Petrochemical process control
  

• Quality assurance