System Calibration

The Tekran® Model 3400 includes an integrated elemental mercury generator for routine calibration through the entire system by injecting in front of the probe filter. The elemental mercury generator is a saturated source type, based on the successful Model 3310 platform, used by the National Institute of Standards and Technology (NIST) for their NIST Prime Traceability Program. Upon request, the elemental mercury generator can be certified traceable to the NIST Prime Standard following a modified USEPA traceability protocol. The integrated Hg source is the most economical choice to provide the necessary daily accuracy check for most applications. For regulatory monitoring requiring additional calibration resources, like the US EPA, the 3400-CAL can be added to the system as described below.

Model 3400-CAL

The Tekran® Model 3400-CAL Elemental Mercury Calibrator is a stand-alone module which further advance world-class Tekran HgCEM calibration systems. The 3400-CAL can be used on any HgCEM System and was designed to seamlessly plug into the Model 3400 HgCEM cabinet. The 3400-CAL will generate known mercury concentrations using a NIST traceable temperature controlled saturated mercury vapor source. Precision mass flow controllers dilute the source output to the desired value. The Model 3400-CAL contains a host of advanced features that provide superior accuracy and allow unattended, remote operation.

Model 3400-CAL generators can be supplied certified, with mercury outputs traceable to NIST.

  • Output concentration range: 0.5 – 1000 μg/m3
  • Calibration gas delivery rate: 2 – 30 SLPM
  • Hg source control range: 5.00 to 50.00 °C
  • Mercury source will last for many years

Oxidized Mercury Calibration

The Tekran® Model 3400-CAL can be configured to supply ionic mercury calibration gas. The unit generates concentrations of ionic mercury by a patented process to quantitatively convert elemental mercury from 3400-CAL source, to HgCl2 to continuously generating large flow rates of calibration gas at low ongoing cost.

  • Output concentration range: 0.5 – 250 μg/m3
  • Operates with Model 3340-CAL to produce both elemental and ionic standards
  • Calibration gas delivery rate: 2 – 30 SLPM