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Evaluation unit air flow monitor NLSW45-6.1 SIL1 for environments up to 400°C, with SIL1 certification

Sku: 81504SIL1/400

Description

✅ SIL1 hot gas flow monitor in accordance with IEC 61508/IEC 61511 for temperatures up to 400°C (monitoring up to 250°C is possible with the NLSW®45-6 SIL1 evaluation unit)

✅ Simple architecture: 1x F8/400°C SIL1 sensor, cost-effective high-temperature solution

✅ 1 changeover relay (250 V AC, 8 A, 2 kVA), dry contact

✅ High-temperature measurement range: 0.1 ... 20 m/s, medium temperature -20 to +400°C

✅ 4 stainless steel sensor designs: 50 ... 300 mm in length, V4A grade

✅ Compact IP40 housing (120×45×73 mm), DIN rail mounting

✅ Stepless setpoint adjustment, start-up delay 2 ... 60 s

✅ LED indicators for voltage and switching point; available in 24 V DC or 230 V AC

✅ Specifically designed for industrial furnaces, pelletizing/drying systems, thermal processing technology, heating coils, furnaces, cooling systems, and surface treatment

✅ Temperature gradient: max. 20 K/min

✅ Easy to maintain: Simple sensor cleaning, regular inspections

✅ German quality: CE and TÜV NORD certified, exida SIL1 certified

Power supply
Lieferzeit Symbol Delivery time: Available immediately

Technische Zeichnung 3D: Download

Technische Zeichnung 2D: Download

Bedienungsanleitung DE: Download

specification
  • Medium
    Gases
  • Device type
    Flow evaluation unit for switch cabinet installation
  • Flow range
    0.1 ... 20 m/s
  • Medium temperature
    -20 ... 400°C
  • Display
    LED (voltage & switching point)
  • Switching point
    Stepless adjustment (potentiometer)
  • Protection class evaluation unit
    IP40
  • Special features
    Start-up delay, adjustable, approx. 2 ... 60 s, additional external start-up override
  • Output signal
    Switching output
  • Switching output specification
    1 changer
  • Sensor break output signal
    Relay drops out
  • Sensor short-circuit output signal
    Relay drops out
  • Relay output specification
    1 changer
  • Housing material
    Polycarbonate glass fiber reinforced (UL94V-0)
  • Housing dimensions
    120 mm x 45 mm x 73 mm
  • Mounting
    DIN rail
  • Power supply
    24 V AC/DC, 230 V AC
  • Electrical connection
    DIN rail
  • Max. power consumption
    3 VA
  • Recommended cable cross-section
    2.5 mm²
  • Current and contact rating
    250 VAC, 8 A, 2 kVA
  • Minimum switching capacity
    10 mA, 5 V DC
  • Ambient temperature
    -20 ... 50°C
  • Certificates
    CE
  • ATEX certification
    none
  • SIL level
    SIL1
  • Country of origin
    Germany
  • Customs tariff number
    90 26 80 20
  • HS code
    90 26 80

Frequently Asked Questions

Was ist der Unterschied zwischen NLSW45-6.1 SIL1 und NLSW45-6.1 SIL2?

SIL1 benötigt nur einen F8/400°C SIL1-Sensor und erreicht Performance Level c. SIL2 verwendet 2 redundante Sensoren für höchste Sicherheit (Performance Level d). SIL1 ist die kostengünstigere Lösung für weniger kritische 400°C-Anwendungen.

Welche F8/400°C-Sensoren sind verfügbar?

F8 bis F8.3/400°C SIL1 mit Eintauchtiefen von 50, 130, 165 und 300mm. Erweiterte Bauformen bis F8.5/400°C (500mm) möglich. Material: Edelstahl V4A, Prozessanschluss PG7, für extreme Temperaturen ausgelegt.

Warum ist der Messbereich bei 400°C reduziert?

Bei extremen Temperaturen bis 400°C ist der Messbereich auf 0,1 ... 20 m/s begrenzt (vs. 30 m/s bei 250°C). Dies gewährleistet präzise und zuverlässige Messung auch unter härtesten thermischen Bedingungen.

Für welche Anwendungen ist das Gerät geeignet?

Speziell für Industrieöfen, Granulat-/Trocknungsanlagen, Thermoprozesstechnik, Oberflächentechnik und Heizregister. Überall wo heiße Gase bis 400°C sicher überwacht werden müssen.

Warum ist Schaltschrankeinbau erforderlich?

Das Gerät hat Schutzart IP40 (Gehäuse) und IP20 (Klemmen), daher ist ein Schaltschrank erforderlich. Die DIN-Schienen-Montage ermöglicht einfache Installation in Standard-Schaltschränken.

Welche Einbauhinweise sind bei 400°C zu beachten?

Sensor in Rohrmitte platzieren, 5×D Einlaufstrecke und 3×D Auslaufstrecke einhalten. Bei horizontalen Rohren seitlicher Einbau empfohlen gegen Ablagerungen. Markierung in Strömungsrichtung ausrichten.

Ist eine Kabelverlängerung möglich?

Ja, bis 20m mit mindestens 1,5mm² Querschnitt. Bei Hochtemperatur-Anwendungen ist die Kabellänge begrenzt für störungsfreie Signalübertragung. Bei EMV-Belastung Abschirmung empfohlen.

Wie wird das 400°C Gerät gewartet?

Regelmäßige Sichtprüfung, Sensorreinigung mit lauwarmer Seifenlauge (niemals scharfe Werkzeuge!). Bei Hochtemperatur-Dauerbetrieb häufigere Kontrollen empfohlen. Nach Reinigung Schaltpunkt überprüfen.

Evaluation unit air flow monitor NLSW45-6.1 SIL1 for environments up to 400°C, with SIL1 certification

€370,29

✅ SIL1 hot gas flow monitor in accordance with IEC 61508/IEC 61511 for temperatures up to 400°C (monitoring up to 250°C is possible with the NLSW®45-6 SIL1 evaluation unit)

✅ Simple architecture: 1x F8/400°C SIL1 sensor, cost-effective high-temperature solution

✅ 1 changeover relay (250 V AC, 8 A, 2 kVA), dry contact

✅ High-temperature measurement range: 0.1 ... 20 m/s, medium temperature -20 to +400°C

✅ 4 stainless steel sensor designs: 50 ... 300 mm in length, V4A grade

✅ Compact IP40 housing (120×45×73 mm), DIN rail mounting

✅ Stepless setpoint adjustment, start-up delay 2 ... 60 s

✅ LED indicators for voltage and switching point; available in 24 V DC or 230 V AC

✅ Specifically designed for industrial furnaces, pelletizing/drying systems, thermal processing technology, heating coils, furnaces, cooling systems, and surface treatment

✅ Temperature gradient: max. 20 K/min

✅ Easy to maintain: Simple sensor cleaning, regular inspections

✅ German quality: CE and TÜV NORD certified, exida SIL1 certified

Medium

Gases

Device type

Flow evaluation unit for switch cabinet installation

Device design

Temperature range

Temperature accuracy

Flow range

0.1 ... 20 m/s

Flow accuracy

Medium temperature

-20 ... 400°C

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

LED (voltage & switching point)

Switching point

Stepless adjustment (potentiometer)

Protection class evaluation unit

IP40

Protection class sensor

Protection class housing

Special features

Start-up delay, adjustable, approx. 2 ... 60 s, additional external start-up override

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 specification

Switching output specification

1 changer

Digital output specification

Sensor break output signal

Relay drops out

Sensor short-circuit output signal

Relay drops out

Analog input

Digital input

Relay output specification

1 changer

Immersion depth

Process connection

Housing material

Polycarbonate glass fiber reinforced (UL94V-0)

Connection head material

Sensor material

Pressure resistance

Overpressure limit

Weight

Operating pressure

Housing dimensions

120 mm x 45 mm x 73 mm

Mounting

DIN rail

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

24 V AC/DC, 230 V AC

Electrical connection

DIN rail

Max. power consumption

3 VA

Power

Recommended cable cross-section

2.5 mm²

Load resistance

Insulation resistance

Current and contact rating

250 VAC, 8 A, 2 kVA

Response time

Minimum switching capacity

10 mA, 5 V DC

Protection class

Min. output power

Self-consumption

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Max. input current

Measuring resistor

Switching differential

Overvoltage category

Reverse polarity protection

Supply output

Sensor element type

Ambient temperature

-20 ... 50°C

Storage temperature

Ambient humidity

Ambient pressure

Temperature compensation

Optimal inlet path

Optimal outlet path

Temperature gradient

Certificates

CE

ATEX certification

none

SIL level

SIL1

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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