Emission Monitor model EM919 is an indigenous product for measuring dust concentration. This device operates on the principle of optical transmissometry, using single pass of a divergent light beam. It can be installed directly on the outlet stack. The dust concentration is measured depending upon the amount of light blocked by suspended articles in exhaust gas. Advanced techniques are effectively used to detect & compensate for errors due to ambient light as well as stationary dust giving accurate emission readings. Unique design of Swirling Chamber ensures effective cleaning of lenses. Due to its unique algorithm of time-based accumulation of opacity, the EM919 can give emission per normalized gas volume (i.e. in mg/Nm3)
EM 919 comes loaded with a centralized monitoring and remote monitoring interface.
Core Components (per stack):
|Basic Unit EM919||Blower Unit BP919|
Common components (per plant):
|Hand Held Unit HHT919||Data Acquisition System|
|Specifications:||Range / Values|
0 to 500 mg/N cu.m
0 to 1000 mg/N cu.m
|Max distance Between
transmitter and receiver
|Upto 250 C with standard insulation
Upto 450 C with thermal insulation and aluminium cladding around stack.
(Insulation not in IFI Scope)
|Accuracy||+/- 2% of Span|
|Analog Outout||1 No. 4 to 20 mA non- isolated, 500Ω Max predefined as measured emission.|
|Digital Output||2 No. Relay outputs (Potential Free N/O Contacts),
Predefined as Emission high alarm and maintenance alarm.
|Communication Ports||2 Nos. Serial Communication Ports
|Communication Protocol||MODBUS Serial (default). PROFIBUS connectivity can be provided if required.|
|Blower Specs||1400 mm WC (max), 144 m3/hr Max|
|Power Supply||EM919 : 110 V / 220 V, 1 Phase, 50 Hz (to be specified at time of order)
BP 919 : 415 V AC, 3 Phase, 50 Hz.
|Power Consumption||EM 919 : 0.01 KVA
BP 919 : 1.5 kW