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Sintrol S201 Dust Monitor

On/Off Switch for filter leak detection

With two independent alarm relays, Sintrol’s S201 allows the end user to identify bag leaks and deterioration of filters.  Using our electric induction measurement principle, the dust monitor can be easily set up within 30 minutes of installation and gives plant operators quick notification of breaches in the filtration system.

Sintrol dust monitor allows end users to manually adjust alert and alarm level signals to tailor to their end needs.  Different probe lengths and coatings give flexibility to meet a variety of applications.


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  • Good value for money
  • Easy start-up and commissioning
  • Rugged design for harsh industrial conditions
  • Proven technology
  • Accurate dust measurement
  • Extremely wide measurement range
  • Detection limit of 0,01 mg/m3
  • Normalized (instruments are all identical
Measurement ObjectsTotal Suspended Particles (TSP)
Measurement RangeDetection Limit 0.01 mg/m³
Maximum Range up to several g/m³, depending on conditions
Measurement PrincipleInductive Electrification
Protection CodeIP65
Power supply24 VDC and 80-240 VAC
Power consumptionUp to 10 W
Output signals• Two dry contact Relays, max 5A@30VDC / 5A@240VAC
• Isolated 4-20 mA output loop
Communication interface• Serial communication RS-485
Communication protocol• Modbus RTU (RS-485)
• Sintrol network (USB, RF and RS-485)

Ambient Conditions

Temperature-40°C to +60 °C (-40 °F to 140 °F)
HumidityMax 95% RH (non-condensing)

Materials and Weight

Enclosure / casingAluminum
Weight1.5 kg (3.3 lbs)

Process conditions

TemperatureMax 200 °C (392 °F) default, optionally up to 700 °C (1292 °F)
PressureMax 300 kPa default, optionally up to 6000 kPa
HumidityMax 95% RH (non-condensing)


Temperature– Starting -20 to +40°C (-4 to 104 °F)
– Running -20 to +60°C (-4 to 140 °F)
HumidityMax 95 % RH (non-condensing)


Probe MaterialStainless steel (AISI 316L)
BodyAluminum, stainless steel (AISI 316L)
Weight4 kg (8.8 lbs)


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