FEATURES
| Type | Exit flow | Output temperature | Display |
| STF1 | 0 … 10V / 4 … 20mA | 0 … 10V / 4 … 20mA | yes + relay |
| STF2 | 0 … 10V / 4 … 20mA | 0 … 10V / 4 … 20mA | No |
AIR FLOW MONITOR – STF1 STF2
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APPLICATION
The STF1 is an air flow monitor based on a microcontroller that monitors non-aggressive, gaseous flows in the range of approx. 0.5 to 10/30 m / s. An output signal of 0-10 V and 4-20 mA is available. A separate 010 V output signal for the temperature can also be tapped.
Data Sheet: STF1 / STF2
TECHNICAL SPECIFICATIONS
| Operating voltage: | 24 VAC / VDC |
| Power consumption: | 50mA + 40mA with current output |
| Output flow: | 0… 10 V (Lmin = 1 kOhm), linear 4… 20 mA (Lmax = 0.4 kOhm), linear |
| Output temperature: | 0… 10 V (Lmin = 1 kOhm), linear 4… 20 mA (Lmax = 0.4 kOhm), linear |
| Measuring range: | 0 … 2 m / s, 0 … 10 m / s, 0 … 20 m / s |
| Relay output (only STF1): | Switching voltage 250 VAC, 6A / 30VDC, 6A NC or NO contact, opens or closes with flow |
| Function with current: | Switching point adjustable via potentiometer |
| Display: | Only with STF1 45.7 x 12.7mm |
| Electrical connection: | 1.5mm² screw terminals |
| Media temperature range: | 0 ° C … +50 ° C |
| Switching point: | Adjustable via potentiometer |
| Installation length: | Adjustable from 50-180mm |
| Protection class sensor: | IP54 |
| Housing dimensions: | L = 90 mm; B = 95 mm; H = 36 mm |
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