
SM-3
Continuous emissions monitor for mercury (CEM)
The SM-3 mercury analyzer measures continuously the elemental, bound and ionic mercury in stack fluegas. The operating principle of the SM-3 is based on a completely new technique: mercury compounds cracking and the reduction of ionic mercury contained in stack gas is performed applying the thermocatalytic method. Wet chemical sample gas treatment using reagents and bubblers is avoided. Maintenance and servicing of the SM-3 are therefore extremely easy.
The SM-3 mercury analyzer measures continuously the elemental, bound and ionic mercury in stack fluegas. The operating principle of the SM-3 is based on a completely new technique: mercury compounds cracking and the reduction of ionic mercury contained in stack gas is performed applying the thermocatalytic method. Wet chemical sample gas treatment using reagents and bubblers is avoided. Maintenance and servicing of the SM-3 are therefore extremely easy.

SM-4
Continuous, accurate and reliable measurement of total mercury emissions, even in very low concentrations and within complex matrices (SO2, NOx, HCl, etc. With over 20 years experience, Mercury Instruments (part of ENVEA Group) were the first to develop mercury monitors and mercury analyzers using a dry thermocatalytic method instead of wet chemistry.
The SM-4 Mercury Monitor is QAL1 certified and is ready to meet future regulatory requirements (Minamata convention & European directives for thermal power plants and incinerators.
The SM-4 Mercury Monitor is QAL1 certified and is ready to meet future regulatory requirements (Minamata convention & European directives for thermal power plants and incinerators.

SM-4 MOBILE
Easily demountable continuous emissions monitor (CEM) for mercury
Technically identical to the SM-4, this device is ideal for mercury determination at varying sites. The SM-4 Mobile by Mercury Instruments has been developed on the basis of the well proven SM-4 mercury stack gas monitor. Its measurement principle and technique, its thermocatalytic reactor, the detector and the sample probe are identical with those of the stationary SM-4.
Technically identical to the SM-4, this device is ideal for mercury determination at varying sites. The SM-4 Mobile by Mercury Instruments has been developed on the basis of the well proven SM-4 mercury stack gas monitor. Its measurement principle and technique, its thermocatalytic reactor, the detector and the sample probe are identical with those of the stationary SM-4.