Measured values | Scattered light intensity, dust concentration (after gravimetric comparison measurement) |
Measurement principles | Scattered light forward |
Spectral range | | | 640 nm ... 660 nm Laser, protection class 2, power < 1 mW |
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Measuring ranges | | Scattered light intensity | 0 ... 7.5 SI / 0 ... 3,000 SI | | Measuring ranges freely selectable; nine measuring ranges pre-configured (0 ... 7.5/15/45/75/150/225/375/1,000/3,000 SI) |
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Response time (t90) | 0.1 s ... 600 s Freely adjustable via SOPAS ET software |
Accuracy | | | ± 2 % Of measuring range full scale |
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Process temperature | | | –40 °C ... +220 °C |
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Process pressure | | With external purge air unit | –50 hPa ... 30 hPa | With instrument air (provided by the customer) | –50 hPa ... 100 hPa |
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Process gas humidity | | | Non-condensing |
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Ambient temperature | | | –40 °C ... +60 °C |
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Conformities | TUEV type-examination |
Electrical safety | CE |
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Analog outputs | 1 output: 0/4 ... 20 mA, 750 Ω Electrically isolated |
Digital outputs | 3 relay contacts: 48 V, 1 A For status signals |
Digital inputs | 4 inputs: For external maintenance switch, automated operational check, linearity measurement, calibration curve switching, or filter monitoring |
Serial | ✔ | Type of fieldbus integration | RTU RS-485 | Function | For connection of a MCU control unit or as service interface |
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Modbus | ✔ | Type of fieldbus integration | RTU RS-485 |
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Model | Without integrated purge air unit |
Dimensions (W x H x D) | | | 173 mm x 167.5 mm x 437 mm (for details see dimensional drawings) |
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Nominal length | 280 mm |
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Mounting | Mounting flange, Tri-Clamp |
Energy supply | | Voltage | 24 V DC | Power consumption | ≤ 4 W |
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Test functions | Automatic self-test (linearity, drift, aging) Manual linearity test with reference filter |
Options | MCU control unit External purge air unit |