The FW101 Ex is designed for continuous measurement of very low to medium dust concentrations - independent of the gas velocity, humidity, or charge of the particles. The probe design of FW101 Ex enables mounting on one side of the gas duct and does not require any mechanical adjustment or calibration with a dust-free measurement path. The measuring device can be used for a wide range of applications, including gas ducts with extremely small or large diameters, as well as thick and thin-walled stacks.
At a glance
Automatic check of zero and reference point |
Montioring of contamination |
Evaluation unit for remote control as an option |
Device type for hazardous areas Zone 1, 2 and 22 |
Your benefits
Installation from one side |
Simple mounting |
Measurement in potentially explosive atmospheres |
Fields of application
Pure gas monitoring downstream of filter plants |
Monitoring of bag filter for defective bags |
Dust monitoring in milling or dosing facilities |
Protection of desulfurization plants against high dust loads |
Monitoring and control of fresh and exhaust air plants |
Technical data | |||
Measurement principles: | Scattered light forward | ||
Measured values: | Dust concentration (after gravimetric comparison measurement) Scattered light intensity |
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Max. number of measurands: | 1 | ||
Measuring ranges: | Dust concentration: 0 ... 5 mg/m3 / 0 ... 200 mg/m³ | ||
Comment: | Higher measuring ranges on request Measuring ranges freely selectable |
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Температура процесса: | High temperature version: -40 ... +400 °C Standard version: -40 ... +220 °C |
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Давление процесса: | With external purge air unit: -50 ... 30 hPa With instrument air (provided by the customer): -50 ... 100 hPa |
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Process gas humidity: |
non-condensing |
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Duct diameter: | ≥250 mm | ||
Ambient temperature: | -20 ... +40 °C | ||
Ex-approvals ATEX: | AK1-Ex connection unit: II 2G Ex de IIC T6, AK1-Ex22 connection unit: II 2D Ex tD A21 T80°C IP6x, Sender/receiver unit (ATEX Ex-zone 1 and 2): II 2G Ex d IIC T6, Sender/receiver unit (ATEX Ex-zone 22): II 3D Ex t IIIB T80°C Dc IP54 | ||
Electrical safety: | CE | ||
Enclosure rating: | Connection unit: IP 65 Sender/receiver unit: IP 66 |
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Analog outputs: | 1 output: 0/2/4 ... 20 mA, 750 Ω electrically isolated; second output as option |
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Digital outputs: | 3 relay contacts: 48 V, 1 A potential-free; for status signals "operation/ failure", "limit value", "maintenance" |
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Digital inputs: | 1 input potential-free; for maintenance switch |
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Interfaces: | RS-232 (service interface) | ||
Bus protocol: | CAN (option) for connection of an evaluation unit |
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System components: | Connection unit Sender/receiver unit |
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Test functions: | Automatic self-test (linearity, contamination, drift, aging) Manual linearity check with reference filter Contamination limits: at 30% warning, at 40% failure |
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Options: | External purge air unit |