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Model 300EU

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Ultra-Sensitive Gas Filter Correlation CO Analyzer

The Model 300EU Trace Level Carbon Monoxide analyzer has been designed specifically to address the challenges of background, low level CO monitoring such as that required by the NCore monitoring network. Using a Gas Filter Correlation Wheel, a high energy IR source alternately passes through a CO filled chamber and a chamber with no CO present. The light path then travels
through the sample cell, which has a folded measurement path of 14 meters. The energy loss through the sample cell is compared with the zero reference provided by the gas filter to produce a signal proportional to concentration.

Based on our proven Model 300E, there are significant enhancements to optimize trace level CO measurement. The objective and field mirrors in the sample cell are gold plated to maximize the signal to noise performance of the Model 300EU. The optical bench is enclosed in a temperature-controlled, convection heated oven which dramatically reduces instrument noise and temperature
related drift. A Nafion® dryer significantly reduces interferences from humidity changes in the sample gas. Additionally, the analyzer periodically monitors and corrects its baseline by routing the sample stream through a heated, platinum CO scrubber. This function, called Auto Reference, helps to correct instrument drift and eliminate any CO2 interferences. Auto Reference is user-programmable to occur from once per hour to once per day as deemed necessary for sampling conditions.

Built-in data acquisition and internal memory allow logging multiple parameters including average and instantaneous values, calibration data and operating diagnostics. Stored data are easily retrieved through the serial port or optional Ethernet port via APIcom software or from the instrument front panel. The operator can then perform predictive maintenance and enhanced data
analysis by tracking parameter trends.

Features
  • Standard two year warranty
  • Ranges, 0-100 ppb to 0-100 ppm, user selectable
  • Gas Filter Wheel for CO specific measurement
  • 14 meter path length for sensitivity
  • Microprocessor controlled for versatility
  • Multi-tasking software allows viewing of test variables during operation
  • Continuous self checking with alarms
  • Bi-directional RS-232 for remote operation
  • Digital status outputs indicate instrument operating condition
  • Adaptive signal filtering optimizes response time
  • GFC wheel guaranteed against leaks for 5 years
  • Temperature & Pressure compensation
  • Internal data logging with 1 min to 24 hour averages
  • APIcom remote operation software


Specifications
Ranges: 0-100 ppb to 0-100 ppm full scale, user selectable; Dual ranges and auto ranging supported
Units: ppb, ppm, µg/m3, mg/m3
Zero noise: < 0.01 ppm RMS
Span noise: < 0.5% of reading above 5 ppm (RMS)
Lower Detectable Limit (LDL): 0.02 ppm
Zero drift: < 10 ppb/24 hours, 20 ppb/7 days
Span drift: < 0.5% of reading/24 hours, 1% of reading/7 days
Lag time: 10 seconds
Rise and Fall Time: < 30 seconds to 95%
Linearity: 1% of full scale
Precision: 0.5% of reading
Sample Flow Rate: 1800 scc/min ±20%
Operating Temperature Range: 5 - 40° C
Dimensions (HxWxD): 7” (178 mm) x 17” (432 mm) x 23.5” (597 mm)
Weight: 50 lbs
Power: 100V - 120V, 220V - 240V, 50/60 Hz, 250W
Analog outputs: Bipolar, 10V, 5V, 1V, 0.1V, selectable
Recorder Offset: ±10%
Serial Outputs: Serial Port 1: RS-232 (DB-9M)
Serial Port 2: standard RS-232 or optional RS-485 (DB-9F), Ethernet
Status (Digital): 8 outputs, 6 inputs (opto-isolated), 6 alarm outputs (optional)
Current Output: Optional 4-20mA, select up to three channels


    
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Teledyne API • 9480 Carroll Park Drive • San Diego, California 92121-5201 • USA