Tekran - Model 2537X - Automated Ambient Air Analyzer
From Ambient Air
The Tekran 2537 performs continuous long-term, unattended analysis of gaseous elemental mercury with unmatched accuracy, sensitivity, and reliability. The Tekran 2537 is easy to setup, use, and maintain and has long been known for its stable performance in rugged conditions. Our instruments have been installed at both Polar Regions, on ocean research vessels and hundreds of locations in between. As a testament to the longevity of our products, the first Tekran 2537 analyzers produced are still running strong and producing quality data with over 15 years of continuous operation.
Product Details
While the Tekran 2537 is typically tasked with continuous ambient air monitoring, other applications are easy to achieve. For example, by continuously measuring the inlet and outlet of a flux chamber, the exceptional sensitivity of the 2537 can be used to determine differential surface emission and deposition rates. The 2537 is most often used with the model 1130 and 1135 to continuously measure atmospheric mercury speciation. The 2537 has also been applied to study and monitor mercury control technology, dissolved gaseous mercury, surface flux by gradient techniques, indoor air, plume chemistry, free-tropospheric air and point sources impacts, to name but a few. In cases where higher air concentrations are expected, the Tekran 2537 can be purchased in an alternate configuration to extend the upper range of the analyzer. This is useful for industrial monitoring and site remediation projects where mercury concentrations are expected to far exceed the typical ambient air concentrations.
Electronics Platform:
- Network enabled
- Touch screen interface
- Local data storage and front panel USB port
- Remote access (remote control and s/w updates)
- Improved data and instrument parameter logging
- Additional functionality via optional s/w plugins (std. additions, remote valve control, and much more)
Detector:
- New lamp stabilizer and detector electronics
- Easy cuvette removal via convenient fitting interface
- Improved stability
- Digital PMT control and display
Permeation Source:
- Lower dead volume permeation chamber
- Valve improvements to reduce pressure effects
- Digital perm source set point and display
Cartridge / Valve Assembly:
- New valve assembly with low dead volume
- Constant power heater control insures consistent temp over heater life
- Faster cool down time with independent high-velocity channelled fans
Physical Layout:
- Reduced height from 5U (8.75”) to 4U (7”)
- Improved component accessibility for routine maintenance
Key Features
- Touch screen interface
- Local data storage and file retrieval
- Low detection limit < 0.1 ng/m3
- Internal permeation source for automated calibrations
- Dual channel gold trapping for uninterrupted sampling
- Network enabled with remote operation and control
- Improved maintenance serviceability
- Rugged platform with proven accuracy and stability
Back Panel Descriptions:
- USB Host Ports (2)
- Network Port (1)
- Analog Chart Outputs (2)
- Status and Control Input (1)
- USB Device Port (1)
- RS-485 Ports (2)
- RS-232 Serial Output (1)
- Sample and Gas Inputs (3)
Specifications (Beta):
- Analyte : TGM (Total Gaseous Mercury)
- Principle : Gold preconcentration with atomic fluorescence detection.
- Sensitivity : < 0.1 ng/m3 (5 min samples)
- Sampling Cycle : 2.0 - 60 min (2 - 15 min recommended)
- Sampling : Continuous (no data stream gaps)
- Outputs : See Above
- Sample Flow : 0.7-1.5L/m
- Flow Totalization : Precision mass flowmeter (MFM)
- Pump : Internal variable speed (MFM feedback loop control)
- Carrier Gas : Argon
- Consumption : < 6 L/day (full size tank lasts 2 to 3 months)
- Carrier Setpoint : Precision mass flow controller. Carrier flow is set to one of 3 settings during each desorption cycle. MFC provides superior stability and accuracy.
- Calibration : Automatic using internal permeation source, Manual injection port also provided
- Physical : Self contained. 19* rack mountable (4U height)
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