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RLSW9 volumetric flow meter for measuring the flow of gases up to 350°C

Sku: 1362F3M8/50

Description

✅ Airflow and air velocity meter with linear analog output in control-grade quality (0 … 10 V & 4 … 20 mA) and switch

✅ Suitable for medium temperatures up to 350°C

✅ Measurement display via LCD, LED bar, and alarm light

✅ Freely scalable measurement range in m/s, m³/h, l/min

✅ Sensitive and fast airflow detection up to 30 m/s, optionally up to 200 m/s

✅ Sensor made of nickel-plated brass (standard); stainless steel or Teflon available

✅ RLSW9 LCD membrane keypad airflow sensor with hinged cover, Menu/Mode buttons, and 10-point menu for professional parameterization from 0.1 to 30 m/s

✅ Ultra-fast 5-second startup time vs. 25 seconds (RLSW8): 5× more productive commissioning and optimized startup sequence

✅ IP67 housing upgrade for temporary submersion: robust protection against dust and water vs. IP54 standard for harsh-environment applications

✅ Installation-optimized 5×D inlet run: Space requirements halved vs. 10×D (RLSW8) for easier retrofitting into existing duct systems

✅ Advanced LCD menu system: German/English language support, backlight control, “slow” damping (1–255), alarm hysteresis, calibration factor adjustment

✅ 175 V/0.25 A SPDT relay: designed specifically for signaling/PLC integration rather than high-load switching, with a minimum switching capacity of 10 mA/5 V DC

✅ 63,000 m³/h maximum flow rate: increase compared to 63,000 (RLSW8) with freely selectable units (m/s ↔ m³/h ↔ l/min) via the menu

✅ M8 sensor option: remote sensor with 2.5 m cable, calibrated in pairs for temperatures up to 250/350°C with modular installation

✅ Low-profile 113×80×60 mm design, control cabinet-optimized mounting with 9-terminal connection

✅ Fail-safe self-monitoring: continuous monitoring of sensor, electronics, and cable with error codes, 4 mA fail signal, and automatic relay dropout

✅ Professional applications: industrial furnaces, drying processes, exhaust systems, HVAC building automation with extreme temperature resistance up to 350°C

⚠️ General note regarding the analog outputs:
Iout (-) must not be connected to the negative terminal of the supply voltage, nor to ground or earth.
The power supply to the downstream evaluation unit (e.g., PLC) must be galvanically isolated and must not establish a ground connection.
If necessary, a power isolator must be used.

Device type
Media temperature
Immersion depth
Lieferzeit Symbol Delivery time: Available in 2-3 days

Technische Zeichnung 3D: Download

Technische Zeichnung 2D: Download

Bedienungsanleitung DE: Download

Bedienungsanleitung EN: Download

specification
  • Medium
    Gases
  • Device type
    Compact flow device
  • Device design
    Compact device including sensor (permanently mounted), Compact device including sensor (remote)
  • Flow range
    0,1 ... 30 m/s (optionally available up to 200 m/s)
  • Flow accuracy
    ±5% of the measuring range end value, Reproducibility ±2% of full scale value
  • Display
    LCD with switchable backlight, Yellow LED for flow velocities > switching point, Green LED during operation, 10 red LEDs for the flow velocity in 10% steps
  • Switching point
    Stepless adjustment (software or potentiometer)
  • Protection class evaluation unit
    IP66
  • Protection class sensor
    IP67
  • Special features
    Linear analog output Flow velocities up to 200 m/s measurable, acknowledgeable alarm, steel housing available on request, adjustable start-up delay 0 ... 300 s Velocity dimensions: m/s, l/min, m³/h, linear analog output can be used up to 350°C media temperature, flow velocities up to 200 m/s measurable, steel housing available on request, acknowledgeable alarm, adjustable start-up delay 0 ... 300 s, velocity dimensions: m/s, l/min, m³/h
  • Output signal
    Switching output, Analog output
  • Switching output specification
    1 NO contact (closes/opens with flow, adjustable)
  • Sensor break output signal
    Fault-specific error codes in the LCD, 4 mA, Relay drops out
  • Sensor short-circuit output signal
    Fault-specific error codes in the LCD, 4 mA, Relay drops out
  • Relay output specification
    1 NO contact (closes/opens with flow, adjustable)
  • Immersion depth
    50, 130, 165, 300, 400, 500, Special lengths on request
  • Process connection
    PG7, Optional G1/2-inch connection using a reducer
  • Housing material
    Polycarbonate, UL94-V0
  • Sensor material
    MS58, nickel-plated (optionally available in stainless steel)
  • Pressure resistance
    10 bar
  • Housing dimensions
    80 mm x 113 mm x 60 mm
  • Power supply
    20 ... 30 V DC
  • Electrical connection
    9 terminals (max. 1.5 mm²)
  • Max. power consumption
    5 VA
  • Current and contact rating
    175 V AC/DC, 0,25 A
  • Minimum switching capacity
    10 mA, 5 V DC
  • Ambient temperature
    -20 ... 60°C
  • Optimal inlet path
    >10 DN
  • Optimal outlet path
    >5 DN
  • Temperature gradient
    30K/min
  • Certificates
    CE
  • ATEX certification
    none
  • SIL level
    none
  • Country of origin
    Germany
  • Customs tariff number
    90 26 80 20
  • HS code
    90 26 80

Frequently Asked Questions

Was ist das Folientastatur-System beim RLSW9 und wie funktioniert die Deckel-Bedienung?

Aufklappbarer Schutzdeckel mit Menu/Mode-Folientasten für geschützte Parametrierung. Öffnung: Flacher Schraubenzieher 4mm in rechten Schlitz, nach innen/links drücken. Tasten: Menu=T1 (weiter/continue), Mode=T2 (wähle/select). Schutz: Folientastatur vor Beschädigung/Verschmutzung geschützt vs. offene Taster bei RLSW8. Schließung: Folienkabel nicht knicken, Deckel einrasten lassen. Innovation: Professionelle Bedienung auch in rauen Umgebungen möglich.

Welchen Vorteil bietet die 5s Bereitschaftszeit des RLSW9 vs. anderen Luftstromsensoren?

5×schnellere Produktivität vs. 25 s (RLSW8) bei häufigen Neustarts. Anwendung: Produktionsumgebungen mit häufigen Start-Stop-Zyklen, Service-Arbeiten, Inbetriebnahme-Tests. Wirtschaftlichkeit: Weniger Stillstand = höhere Anlagen-Verfügbarkeit in kritischen Prozessen.

Was bedeutet die 5×D Einlaufstrecken-Optimierung beim RLSW9?

Halbierte Installation-Anforderung: 5×D Einlauf + 5×D Auslauf vs. 10×D+10×D (RLSW8). D=Rohrinnendurchmesser: z.B. DN100 = 50 cm statt 100 cm Einlaufstrecke erforderlich. Retrofit-Vorteil: Einfachere Nachrüstung in bestehende Kanalsysteme ohne umfangreiche Umbauten. Platzsparend: Weniger gerade Kanalstrecken erforderlich. Genauigkeit: Trotz reduzierter Beruhigungsstrecken ±5% Messgenauigkeit durch optimierte Sensor-Geometrie. Installation-Zeit: Deutlich reduziert vs. Standard-Anforderungen.

Wie funktioniert das Advanced 10-Punkt-Menü-System beim RLSW9?

Menu/Mode-Navigation: T1=Menu (nächster Punkt), T2=Mode (Auswahl). Parameter: 1.Language (DE/EN), 2.Start verz (3-300 s), 3.Geschw dim (m/s/m³/h/l/min), 4.Rohr durchm (1-2500 mm), 5.Geschw max (1-64.000), 6.Alarm hyst (0-99), 7.Alarm verz (0-255 s), 8.Relais fkt (NOP/NOC), 9.Langsamer (1-255 Dämpfung), 10.Kal fakt (30-255%), 11.Backlight (AN/AUS). "Speichern und beenden" verwenden - sonst Datenverlust! Innovation: Umfangreichstes Menü in der Preisklasse.

Welche Spezifikationen hat das 175 V/0,25 A Relais beim RLSW9?

SPDT-Wechsler: Kontakte 7 (NC), 8 (COM), 9 (NO) - bei Strömung wechselt 8→9. Reduzierte Leistung: 175 V AC/DC, 0,25A vs. 200 V/1 A (RLSW8) für Signalisierung optimiert. Mindestschaltleistung: 10 mA/5 V DC für sichere SPS-Erkennung. Anwendung: SPS-Eingänge, Alarmsignalisierung, DDC-Integration statt Hochlast-Schaltung. NOP/NOC: Über Menü konfigurierbar für Normal-Open/Normal-Closed-Logik. Lebensdauer: Verlängert durch reduzierte Schaltleistung vs. Hochlast-Relais.

Was sind die typischen Anwendungsgebiete für den RLSW9 mit 350°C-Fähigkeit?

Industrieöfen: Brennkammer-Überwachung, Abgas-Strömungskontrolle, Sicherheits-Abschaltungen. Trocknungsprozesse: Lebensmittel, Pharma, Textil mit Heißluft-Systemen. Absaugungen: Schweißrauch, Lackierkabinen, Chemie-Abgase mit hohen Temperaturen. HLK-Gebäudeautomation: Extreme Dachinstallationen, Wärmerückgewinnung, Solarthermie-Anlagen. Prüfstände: Motorentests, Turbinen-Charakterisierung, Abgas-Emissionsmessungen. M8-Option: Abgesetzter Sensor bis 250/350°C für Extrembereiche erforderlich.

Welche Installation-Besonderheiten gelten für den RLSW9 vs. RLSW8?

Flachere Bauform: 113×80×60 mm vs. 56×86×82 mm - andere Schaltschrank-Dimension. Folientastatur-Zugang: Ausreichend Platz für Deckel-Öffnung einplanen. 20-36 V Weitbereich: Robustere Spannungsversorgung, weniger kritisch bei Toleranzen. 5×D Beruhigungsstrecken: Halbierte Einbau-Anforderungen für einfachere Integration. M8-Verkabelung: Bei abgesetzter Version 2,5 m Kabel nicht veränderbar, paarige Kalibrierung beachten. IP67: Höhere Dichtigkeit - weniger Service-Aufwand in feuchten Umgebungen erforderlich.

RLSW9 volumetric flow meter for measuring the flow of gases up to 350°C

Away €380,89

✅ Airflow and air velocity meter with linear analog output in control-grade quality (0 … 10 V & 4 … 20 mA) and switch

✅ Suitable for medium temperatures up to 350°C

✅ Measurement display via LCD, LED bar, and alarm light

✅ Freely scalable measurement range in m/s, m³/h, l/min

✅ Sensitive and fast airflow detection up to 30 m/s, optionally up to 200 m/s

✅ Sensor made of nickel-plated brass (standard); stainless steel or Teflon available

✅ RLSW9 LCD membrane keypad airflow sensor with hinged cover, Menu/Mode buttons, and 10-point menu for professional parameterization from 0.1 to 30 m/s

✅ Ultra-fast 5-second startup time vs. 25 seconds (RLSW8): 5× more productive commissioning and optimized startup sequence

✅ IP67 housing upgrade for temporary submersion: robust protection against dust and water vs. IP54 standard for harsh-environment applications

✅ Installation-optimized 5×D inlet run: Space requirements halved vs. 10×D (RLSW8) for easier retrofitting into existing duct systems

✅ Advanced LCD menu system: German/English language support, backlight control, “slow” damping (1–255), alarm hysteresis, calibration factor adjustment

✅ 175 V/0.25 A SPDT relay: designed specifically for signaling/PLC integration rather than high-load switching, with a minimum switching capacity of 10 mA/5 V DC

✅ 63,000 m³/h maximum flow rate: increase compared to 63,000 (RLSW8) with freely selectable units (m/s ↔ m³/h ↔ l/min) via the menu

✅ M8 sensor option: remote sensor with 2.5 m cable, calibrated in pairs for temperatures up to 250/350°C with modular installation

✅ Low-profile 113×80×60 mm design, control cabinet-optimized mounting with 9-terminal connection

✅ Fail-safe self-monitoring: continuous monitoring of sensor, electronics, and cable with error codes, 4 mA fail signal, and automatic relay dropout

✅ Professional applications: industrial furnaces, drying processes, exhaust systems, HVAC building automation with extreme temperature resistance up to 350°C

⚠️ General note regarding the analog outputs:
Iout (-) must not be connected to the negative terminal of the supply voltage, nor to ground or earth.
The power supply to the downstream evaluation unit (e.g., PLC) must be galvanically isolated and must not establish a ground connection.
If necessary, a power isolator must be used.

Medium

Gases

Device type

Compact flow device

Device design

Compact device including sensor (permanently mounted), Compact device including sensor (remote)

Temperature range

Temperature accuracy

Flow range

0,1 ... 30 m/s (optionally available up to 200 m/s)

Flow accuracy

±5% of the measuring range end value, Reproducibility ±2% of full scale value

Medium temperature

Relative pressure range

Relative pressure accuracy

Atmospheric pressure range

Atmospheric pressure accuracy

Measured variable

Differential pressure range

Differential pressure accuracy

VOC range

VOC accuracy

CO₂ range

CO₂ accuracy

Relative humidity range

Relative humidity accuracy

Number of differential pressure ranges

Maximum measuring range limit

Display

LCD with switchable backlight, Yellow LED for flow velocities > switching point, Green LED during operation, 10 red LEDs for the flow velocity in 10% steps

Switching point

Stepless adjustment (software or potentiometer)

Protection class evaluation unit

IP66

Protection class sensor

IP67

Protection class housing

Special features

Linear analog output Flow velocities up to 200 m/s measurable, acknowledgeable alarm, steel housing available on request, adjustable start-up delay 0 ... 300 s Velocity dimensions: m/s, l/min, m³/h, linear analog output can be used up to 350°C media temperature, flow velocities up to 200 m/s measurable, steel housing available on request, acknowledgeable alarm, adjustable start-up delay 0 ... 300 s, velocity dimensions: m/s, l/min, m³/h

Cable length

IK impact resistance rating

Luminous flux

Emergency luminous flux

Efficiency

Light color

Color rendering index CRI

Flicker factor

Power factor

Humidity resolution

Temperature resolution

Max. differential pressure

Adjustment range

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Output signal

Switching output, Analog output

Analog output specification

Switching output specification

1 NO contact (closes/opens with flow, adjustable)

Digital output specification

Sensor break output signal

Fault-specific error codes in the LCD, 4 mA, Relay drops out

Sensor short-circuit output signal

Fault-specific error codes in the LCD, 4 mA, Relay drops out

Analog input

Digital input

Relay output specification

1 NO contact (closes/opens with flow, adjustable)

Immersion depth

50, 130, 165, 300, 400, 500, Special lengths on request

Process connection

PG7, Optional G1/2-inch connection using a reducer

Housing material

Polycarbonate, UL94-V0

Connection head material

Sensor material

MS58, nickel-plated (optionally available in stainless steel)

Pressure resistance

10 bar

Overpressure limit

Weight

Operating pressure

Housing dimensions

80 mm x 113 mm x 60 mm

Mounting

Minimum pipe diameter

Fastening strap specification

Burst pressure

Vacuum resistance

Dimensions

Cable gland

Diameter

Installation depth

Front cover material

Sensor response length

Capillary tube length

Max. pressure

Power supply

20 ... 30 V DC

Electrical connection

9 terminals (max. 1.5 mm²)

Max. power consumption

5 VA

Power

Recommended cable cross-section

Load resistance

Insulation resistance

Current and contact rating

175 V AC/DC, 0,25 A

Response time

Minimum switching capacity

10 mA, 5 V DC

Protection class

Min. output power

Self-consumption

product.metafields.custom.leistung Bürde max.

Max. input current

Measuring resistor

Switching differential

Overvoltage category

Reverse polarity protection

Supply output

Sensor element type

Ambient temperature

-20 ... 60°C

Storage temperature

Ambient humidity

Ambient pressure

Temperature compensation

Optimal inlet path

>10 DN

Optimal outlet path

>5 DN

Temperature gradient

30K/min

Certificates

CE

ATEX certification

none

SIL level

none

Country of origin

Germany

Customs tariff number

90 26 80 20

HS code

90 26 80

Warranty

Service life

Fire protection

Alarm

Lining

Color

Output signal accuracy LCD/Modbus

Manufacturer

Notes

Hysteresis

Conformity

Long-term stability

Material contact

Media compatibility

Emergency light

Certification mark

Signal output reproducibility

Switching function (flow)

Fuse

Wet bulb temperature spec.

Dew point temperature spec.

Absolute humidity spec.

Availability

Pollution degree

Heat dissipation

Repeatability

Permissible air velocity

Internal thread

External thread

Wrench size

Inner diameter

Accessories

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