Suspended Particulate Matter (SPM)

MEASURING PRINCIPLE :-
The laser beam passes across the stack or duct work and is reflected by the dust particles, the reflected light is then detected by the photoelectric sensor. The intensity of reflected laser signal is proportional to dust concentration, by which the resulting signal is analyzed to yield dust concentration.

APPLICATION :-
♦ Filter failure alarms, Process control monitor
♦ Cogenerations Power Plants
♦ Ferrous and Non ferrous Metal Processing Unit.
♦ Cement Plants & Silos, Petrochemical, Pharma.
♦ Boilers & Incinerators Paper Plants etc.

TECHNICAL SPECIFICATION :- 
♦ Principle – Laser back scattered
♦ Component – dust
♦ Measurement range – 0~200~1000mg/m3
♦ Protection grade – IP66
♦ Response time – ≤10s
♦ Span drift – ≤(±2)%F.S./24h
♦ Zero drift – ≤(±2)%F.S./24h
♦ Outputs – Analog, RS485
♦ Power Supply – DC24V/0.3A