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 As heat is withdrawn by the flowing air, the thermistor resistance alters.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
- 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
- Minimum Setpoint Velocity
- 0.1 m/s cubic metre per hour
- Mounting Type
- Universal inch
- Universal inch
- Maximum Setpoint Velocity
- 20 m/s cubic metre per hour
Others
- 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
- Minimum Setpoint Velocity
- 0.1 m/s cubic metre per hour
- Mounting Type
- Universal inch
- Universal inch
- Maximum Setpoint Velocity
- 20 m/s cubic metre per hour
- 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
- Minimum Setpoint Velocity : 0.1 m/s cubic metre per hour
- Mounting Type : Universal inch|Universal inch
- Maximum Setpoint Velocity : 20 m/s cubic metre per hour
Others
Name
Description
File Size
Date
Size
H60456120 SINGLE-STAGE ROOM & DUCT HYGROSTATS
application/pdf 165.98 KB
8/16/2022
165.98 KB
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application/pdf 1.95 MB
7/4/2022
1.95 MB
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application/pdf 1.95 MB
7/11/2022
1.95 MB
Electronic flow switch series
application/pdf 237.01 KB
7/11/2022
237.01 KB
Name
Description
File Size
Date
Size
H60456120 SINGLE-STAGE ROOM & DUCT HYGROSTATS
165.98 KB
8/16/2022
165.98 KB
??????????? ????????????? ???? ?????????? ? ????????????
1.95 MB
7/4/2022
1.95 MB
??????????? ????????????? ???? ?????????? ? ????????????
1.95 MB
7/11/2022
1.95 MB
Name
Description
File Size
Date
Size
H60456120 SINGLE-STAGE ROOM & DUCT HYGROSTATS
165.98 KB
8/16/2022
??????????? ????????????? ???? ?????????? ? ????????????
1.95 MB
7/4/2022
??????????? ????????????? ???? ?????????? ? ????????????
1.95 MB
7/11/2022
Product Number
SKUs
Image
SKU
Description
ASL453
Air flow monitor evaluation unit for use with SWL air flow sensor; 230VAC power; switching point 0,1…20m/s; 8A 250VAC
ASL453/24
Air flow monitor Evaluation unit for use with SWL air flow sensor; 24VAC/DC power; switching point 0,1…20m/s; 8A 250VAC
SLF3
Air flow sensor for use with ASL evaluation unit.
Image
SKU
Description
ASL453
Air flow monitor evaluation unit for use with SWL air flow sensor; 230VAC power; switching point 0,1…20m/s; 8A 250VAC
ASL453/24
Air flow monitor Evaluation unit for use with SWL air flow sensor; 24VAC/DC power; switching point 0,1…20m/s; 8A 250VAC
SLF3
Air flow sensor for use with ASL evaluation unit.