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Flow Switches & Sensors

SWL Air flow monitoring

The SLF... sensor can be used in combination with an ASL… evaluation device to monitor the flow in the air (e.g. in air-conditioning systems). The switching point is adjustable.

Overview

The SLF... sensor can be used in combination with an ASL… evaluation device to monitor the flow in the air (e.g. in air-conditioning systems). The switching point is adjustable. While the fan starts up the switch-on bypass is active. The bypass duration (2 – 60 s) is adjustable.The air flow monitors work according to the calorimetric principle. A thermistor is heated up. As heat is withdrawn by the flowing air, the thermistor resistance alters. The change in resistance is evaluated. As the resistance also depends on the temperature of the medium, the difference must be determined by a second thermistor. The difference is compensated and in this way the switching point is kept stable.Suspended materials adhering to the sensor can have an insulating effect and so affect themeasurement result and hence the defined switching point. Therefore it is advisable to remove any dirt during routine maintenance operations.

Specifications

Others

  • Minimum Setpoint Velocity
    • 0.1 m/s cubic metre per hour
  • Mounting Type
    • Universal inch
    • Universal inch
  • Brand
    • Honeywell BMS EMEA
  • Switch Configuration
    • Evaluation unit: relay SPST 8A, 250 VAC, switchpoint adjustable from 0,1..20 m/s air speed
    • Evaluation unit: relay SPST 8A, 250 VAC, switchpoint adjustable from 0,1..20 m/s air speed
  • Maximum Setpoint Velocity
    • 20 m/s cubic metre per hour

Others

  • Minimum Setpoint Velocity
    • 0.1 m/s cubic metre per hour
  • Mounting Type
    • Universal inch
    • Universal inch
  • Brand
    • Honeywell BMS EMEA
  • Switch Configuration
    • Evaluation unit: relay SPST 8A, 250 VAC, switchpoint adjustable from 0,1..20 m/s air speed
    • Evaluation unit: relay SPST 8A, 250 VAC, switchpoint adjustable from 0,1..20 m/s air speed
  • Maximum Setpoint Velocity
    • 20 m/s cubic metre per hour
  • Minimum Setpoint Velocity : 0.1 m/s cubic metre per hour
  • Mounting Type : Universal inch|Universal inch
  • Brand : Honeywell BMS EMEA
  • Switch Configuration : Evaluation unit: relay SPST 8A, 250 VAC, switchpoint adjustable from 0,1..20 m/s air speed|Evaluation unit: relay SPST 8A, 250 VAC, switchpoint adjustable from 0,1..20 m/s air speed
  • Maximum Setpoint Velocity : 20 m/s cubic metre per hour
Sort
Others
Document Title
Document Type
File Size
Declaration of Conformity
0.23 MB
Data Sheet
0.13 MB
Engineering Specifications
0.13 MB
Document Title
Document Type
File Size
Declaration of Conformity
0.23 MB
Data Sheet
0.13 MB
Engineering Specifications
0.13 MB
Product Number
Image
SKU
Description
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ASL453
Air flow monitor evaluation unit for use with SWL air flow sensor; 230VAC power; switching point 0,1…20ms; 8A 250VAC
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ASL453/24
Air flow monitor Evaluation unit for use with SWL air flow sensor; 24VACVDC power; switching point 0,1…20ms; 8A 250VAC
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SLF3
Air flow sensor for use with ASL evaluation unit.
Image
SKU
Description
alt
ASL453
Air flow monitor evaluation unit for use with SWL air flow sensor; 230VAC power; switching point 0,1…20ms; 8A 250VAC
alt
ASL453/24
Air flow monitor Evaluation unit for use with SWL air flow sensor; 24VACVDC power; switching point 0,1…20ms; 8A 250VAC
alt
SLF3
Air flow sensor for use with ASL evaluation unit.