PROFIBUS
PROFIBUS is a fieldbus communication standard used to connect field devices and control systems across industrial plants.
Specs at a glance
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Measuring principle
Scattered light forward
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Measured variables
Visibility (K-value)
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Measuring range
K-value: 0 ... 150 km⁻¹ / 0 ... 2,000 km⁻¹
Temperature: -50 ... +250 °C
Limit value for smoke detection: 15/km -
Ambient temperature range
–30 °C ... +55 °C
Field of application
Fast and reliable detection of smoke in tunnels delivers information which helps to save human lives and avoid material damage. The SMOTEC450 detects smoke particles in tunnels within seconds and alerts the control system immediately – long before visibility is reduced too much by dense smoke. The automatic check cycle of the SMOTEC450 checks all important components of the system each day without the tunnel having to be closed and without incurring personnel costs.
Device properties:
Very fast and accurate scattered light measurement
Automatic control functionalities
Contamination check
Heated chamber for evaporization of fog droplets
Rugged enclosure made of stainless steel
Benefits
Early and reliable warning for optimum efficiency during self-rescue phase
Automatic check cycle without the tunnel having to be closed and without incurring personnel costs
Extended selection
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High-end products
- Highly functional and convenient
Technical excellence
Simplicity
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
|
Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
|
Xpert selection Master your most challenging applications |
Technical excellence
|
Simplicity
Variable |
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Could also interest you
11 documents
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Operating Instruction (BA)
SMOTEC450
Smoke Detector
EN 01/01/2025Language:
English
Version:
01/01/2025
File size:
6.4 MB
File name:
8029839_OI_SMOTEC450_en_V2-2_2014-06_EHS.pdf
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Ex Safety Instruction (XA)
Safety Information
for non-Ex analyzer devices
(multi-lingual, also in DE, BG, CS, DA, EL, ES, ET, FI, FR, HR, HU, IT,
LT, LV, NL, NO, PL, PT, RO, RU, SK, SL, SV)Language:
English
Version:
01/01/2025
File size:
2.4 MB
File name:
8030257_XA_Safety_Information_non-Ex_ml_V1-0_2016-06_WEB.pdf
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Competence Brochure (CP)
Solutions for traffic and tunnel safety
An overview brochure about traffic and tunnel sensor, their
development during the last 60 years, the main applications in front
and within a tunnel as well as the measuring devices at a glanceLanguage:
English
Version:
01/04/2026
File size:
8.1 MB
File name:
8029977_CP_Traffic_Sensors_en_V2-1_2026.04_EHS.pdf
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Competence Brochure (CP)
交通用センサ 道路およびトンネルの安全ソリューション
道路およびトンネルのセンサに関する概要パンフレットであり、過
去60年間の開発の経緯、トンネルの前方および内部での主な用途、
そして測定装置の一覧が紹介されています。Language:
Japanese
Version:
09/10/2025
File size:
5.1 MB
File name:
CP01598CJA_0125_Traffic_Sensors_LowRes.pdf
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Competence Brochure (CP)
Emission Monitoring Solutions
Broad portfolio and long-standing experience
Language:
English
Version:
21/05/2026
File size:
4.9 MB
File name:
8029975_CP_Emission_Monitoring_Solutions_en_V4-3_2026.05_EHS_WEB.pdf
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Competence Brochure (CP)
Soluzioni per il monitoraggio delle emissioni
Soluzioni per il monitoraggio delle
emissioni
Ampio portfolio e vasta esperienzaLanguage:
Italian
Version:
27/05/2025
File size:
4.5 MB
File name:
CP01596C16IT01.25-00.pdf
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Competence Brochure (CP)
Lösungen zur Emissionsüberwachung
Breites Portfolio und langjährige
Erfahrung in Gasanalyse und
DurchflussmessungLanguage:
German
Version:
25/03/2026
File size:
4.8 MB
File name:
CP01596C_Loesungen zur Emissionsueberwachung_web.pdf
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Competence Brochure (CP)
排出ガス監視ソリューション 幅広い製品群と長年にわたる実績
排出ガス監視、測定原理と技術、国際的な要件とサービス、選択ガイド、そして測定装置の一覧をまとめたパンフレット
Language:
Japanese
Version:
24/09/2025
File size:
3.3 MB
File name:
CP01596CJA_0125_0226_Emission_Monitoring_Solutions_mail.pdf
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Competence Brochure (CP)
Verkehrssensoren
Lösungen für die Verkehrs-
und TunnelsicherheitLanguage:
German
Version:
25/03/2026
File size:
3.8 MB
File name:
CP01598C_Verkehrssensoren_web_01-25.pdf
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Innovation (IN)
SMOTEC450 – Fast and reliable smoke detection for every type of tunnel
Highly efficient smoke detection with early and reliable warning
for optimum efficiency during self-rescue phaseLanguage:
English
Version:
01/03/2026
File size:
2.7 MB
File name:
8030074_IN_SMOTEC450_en_V2-2_2026.03_EHS_WEB.pdf
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