envea SM-4 - Typical Arrangement

SM-4 page 7
1.3 Typical Arrangement
The SM-4 measuring system consists of 4 modules:
1) The sampling system with probe, filter, dilution system and thermo catalytic converter
2) The probe controller
3) The heated sample bundle
4) The analyzer enclosure with bypass pump, detector, compressed air conditioning and
the calibrator
Ejector
Pump
Mass flow
controller
Optical Cell
GoldTrap
V1
Zero air
filter
Mercury Detector
Sample
out
Sample Conditioning System
heated sample line
Critical
orifice
Ejector pump-
dilutor unit
Thermo-catalytic
reactor
Heated Probe
Dilution
air in
SM-4 Typical Arrangement
Dilution
air out
Elemental Mercury Calibration Gas Generator
Particle
filter
Calibration
valve
Sample in
Mass flow
controller
Mass flow
controller
Air in
Dilutor
saturation
chamber
evaporation
chamber
Hg Hg
1
1. Probe with Sample
Conditioning System
4. Anqalyzer Enclosure
with Calibration Unit
3. Heated
Bundle