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- Expert’s Corner
The Tekran® Model 2505 Mercury Vapor Calibration Unit is an ultra-precise and accurate closed-vessel, saturated gaseous mercury source. The 2505 utilizes a thermoelectrically cooled mercury reservoir and dual temperature sensors calibrated against a US National Institute of Standards and Technology (NIST) traceable source producing exceptionally accurate Hg delivery. The mercury vapor is delivered manually using a high precision, digital gas tight syringe. The unit registers the reservoir temperature and calculates the amount of mercury in a user defined injection volume. The device is portable, operating from either 12 VDC or a standard wall outlet. The Tekran® 2505 is the most advanced system for ultra low-level mercury vapor calibration, since NIST and other standards organizations have yet to provide the means, methods, or reference materials to assist with this type of measurement.
The Model 2505 can be used to calibrate any low level gas phase measurement system. This unit is ideal for performing field and laboratory audits on the Model 2537 analyzer’s automated, internal calibration system. When performing analysis of mercury in gas matrices with the Model 2600-NG analyzer, the Model 2505 is used as a primary calibration standard for routine calibration. The Model 2505 is frequently used for system investigations such as evaluation of sample line transport by spiking at the inlet, confirming accurate instrument response or for other specialized research applications requiring an accurate and precise Hg source.
- Advanced design contains an integral microprocessor, liquid crystal display (LCD) and keypad
- Dual temperature sensors with a resolution of 0.001 OC
- Thermoelectric cooler provides capability of withstanding high temperatures
- Automatic calculation of the amount of mercury contained per unit volume at a given temperature
- Three power options: 100-240 VAC, 12 VDC, or via internal battery (no active cooling)
For more information and a full listing of specifications and uses, please Download the Fact Sheet.