S303 / S303 Ex Dust Monitor
Sintrol S303 is a continuous dust monitor that gives plant operators ability to see the performance of their filtration system over a period. The dust monitor has a 4-20 mA output for continuous dust measurement. Perfect for installation after any filtration system or in common line channels leading into the emissions points of a plant.
Working principle
When solid particles come in contact or close to an insulated probe they produce a charge to the probe. This phenomenon is then amplified and converted into a proportional signal to the dust concentration. The amplification consists of two signals: DC component occurs when particles come into contact of the sensor (traditional triboelectric signal) and AC signal is generated by particles coming into contact as well as passing nearby the probe. Through advanced algorithms and signal filtration Inductive Electrification provides a very accurate dust measurements output.

Features
- For duct sizes up to 7000 mm
- Aluminium enclosure with expectational finish quality
- Low maintenance technology
- One-sided installation
- Auto-Setup function
- Extremely wide linear measurement range
- Low detection limit of 0,01 mg/m3
- Multipoint calibration
- Local four-digit display
- Four keys for operation and parameterization
- Status LED’s with three colors: green, orange, red
- Multiple outputs and connectivity:
- 4-20 mA output
- Two independent SPDT relays
- RS-485 Modbus RTU
- USB
S303 Ex is IECEx, ATEX and Hazardous Locations approved for:
| Zone 20 | Zone 21 | Zone 22 | |
| Inside the duct | X | X | X |
| Outside the duct in ambient air | X | X |
Benefits
- Choose the way you want to connect. With multiple connectivity options you can choose the most suitable for your location and needs.
- Dust Monitors that withstand and lasts with low operating and maintenance costs.
- Safe time – single opening into duct/stack and no alignment needed
- Once mechanical and electrical installations are performed in takes only 500 seconds (app. 8 minutes) to commission the dust monitor
- Detect changes in dust level from low concentration to high amounts with confidence
- Linear response – know your dust level all the time all the way
Ask more
John Korpi
Area Sales Director
Dust Monitoring Solutions
+358 9 5617 3697
+358 50 463 5452
John Korpi
Area Sales Director
Dust Monitoring Solutions
+358 9 5617 3697
+358 50 463 5452