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Sampling System Solutions
Analytical Division
pH Analyzer
Conductivity Analyzers
Dissolved Oxygen Analyzer
Chlorine Analyzers
TOC Analyzer
Silica Analyzer
Iron Analyzer
Oil in Water Analyzers
Hydrazine Analyzer
Hardness Analyzer
Chloride Analyzer
Phosphate Analyzer (Yellow Method)
Phosphate Analyzer (Blue Method)
Dissolved Zinc Analyzer
Sulphate Analyzer
Aluminum Analyzer
Cyanide Analyzer
Manganese Analyzer
Nitrite Analyzer
Sodium Analyzer
Alkalinity Analyzer
Ion Selective Analyzer
Sulfide Analyzer
COD-BOD-TSS Analyzers
Turbidity Analyzer
Optical DO Analyzer
Sequencer
Environmental Solutions
Steam Engineering
Process Trace Oxygen Analyzer
The Model 3020T is a microprocessor-based instrument for detecting oxygen at the parts-per-million (ppm) level in a variety of gases. This instrument serves as the explosion-proof, bulkhead-mount version of the 3000 Series. Simple menu choices, externally accessible command switches, and dual LCD and LED displays make setup and operation clear and quick.
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.
Options
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
Ranges | 3 Customer programmable ranges (min. 0-10 ppm) with auto-ranging |
Accuracy | ± 2% of FS at a constant temperature |
Sensitivity | 0.5% of FS |
Response Time | 90% of FS 77°F (25°C) in less than 65 seconds |
Temperature | 32° to 122°F (0° to 50°C) |
Output | Signal: Analytical measurement 0-1 VDC and 4-20 mADC (isolated) |
Display | Analysis: 5 digit red LED, 3/5″ high numerals |
Alarm | One system failure alarm contact to detect power failure |
Power | 115 to 230 VAC, 50/60 Hz |
Sensor | Teledyne Micro-Fuel Cell, Class L-2 |
Classifications | Explosion proof enclosure is U/L and CSA listed for Class 1, Div 1, Group B, C & D service NEMA 4/7 rated |
Dimensions | 25.63″H x 15.25″W x 11″D |
• Monitoring inert gas blanketing
• Air separation and Liquefaction
• Chemical reaction monitoring
• Semiconductor manufacturing
• Petrochemical process control
• Quality assurance
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