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Economical Air Flow Switch With High/Lo Alarms
Economical Air Flow Switch
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- Air Velocity Range up to 10,000 FPM (50.8 m/sec)
- 2% Full Scale Accuracy
- Two Sensor Probe Configurations (Fixed and Remote)
- Hot Wire Air Velocity Sensor Design
FST1002A Model Options
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Velocity Range
Features
Media Type
Accuracy
Max Process Temperature
Process Connection Type
Process Connection Size
Wetted Materials
Switch Rating and Type
Supply Power
Wire Length
- Contact Blocks 10A @ 24 Vdc
- Maximum Pressure 150
- Maximum Switching Voltage 12 V
- Minimum Supply Voltage 15 VDC
The FST1000 Series measures air velocity and provides two SPST alarm contact closures corresponding to high and low alarm set points. The alarm set points are adjustable from 0 to 100% of the air flow range. The unit comes with a green power LED, and two red LEDs for high and low alarm indications. They can be used in research and development labs, HVAC applications, exhaust/ ventilation hoods and other manufacturing processes. The sensor design is based on RTD elements; the air velocity is measured by the heat loss from the RTD sensor as it cools down by the air flow. The sensor probe comes in two configurations, fixed mount and remote probe.
SPECIFICATIONS
Air Velocity Range: 0 to 5000, 0 to 10,000 FPM
Accuracy: 2% FS (air velocity)
Air Velocity Probe: ¼' OD stainless steel, 305 mm L (12'), or remote probe with 15 feet of cable
High and Low Alarm Set Point: Adjustable from 0 to 100% of air flow range
Alarm Indication: Red LEDs on the back plate
Alarm Deadband: 5% of FS
Built-In Relays: Two 12V SPST NO relays (high and low)
Contact Rating: 10A @ 24 Vdc, 10A @ 250 Vac
Operating Ambient Temperature:
Sensor Probe: -40 to 93ºC (-40 to 199ºF)
Electronic Case: 0 to 50ºC (32 to 122ºF)
Power Indicator: Green LED
Power: 15 to 24 Vdc @ 200 mA
Dimensions: 89 H x 51 W x 31.8 mm D (3.5 x 2 x 1.25')
Weight: 160 g (5.6 oz)
SPECIFICATIONS
Air Velocity Range: 0 to 5000, 0 to 10,000 FPM
Accuracy: 2% FS (air velocity)
Air Velocity Probe: ¼' OD stainless steel, 305 mm L (12'), or remote probe with 15 feet of cable
High and Low Alarm Set Point: Adjustable from 0 to 100% of air flow range
Alarm Indication: Red LEDs on the back plate
Alarm Deadband: 5% of FS
Built-In Relays: Two 12V SPST NO relays (high and low)
Contact Rating: 10A @ 24 Vdc, 10A @ 250 Vac
Operating Ambient Temperature:
Sensor Probe: -40 to 93ºC (-40 to 199ºF)
Electronic Case: 0 to 50ºC (32 to 122ºF)
Power Indicator: Green LED
Power: 15 to 24 Vdc @ 200 mA
Dimensions: 89 H x 51 W x 31.8 mm D (3.5 x 2 x 1.25')
Weight: 160 g (5.6 oz)
Is this product reliable in a dusty enviroment? I mean I am wanting to monitor the air flow in the exhaust system for powder coating, and there will be fine dust particles in this ducting. Can the sensor be placed in this stream, needs to be placed after
Thank you for your inquiry about the air flow switch. Unfortunately, due to the dust particles you mentioned, it will affect the reading since a coating can occur. Best to place after in an area with no debris or suspended particles.
Date published: 2021-12-09
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