Thermal Mass Flow Sensor - FS2

  • Thermal Mass Flow Sensor
  • Thermal Mass Flow Sensor
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• ​Detection of flow direction
• ​Excellent long-term stability
• ​Simple signal processing
• ​Simple calibration
• ​Outstanding sensitivity

  • Model Number: FS2
  • Data Sheet: Date Sheet File
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Product Specification

Further advantages of the FS2 thermal mass flow sensor include:

• Detection of flow direction

• Excellent long-term stability

• Simple signal processing

• Simple calibration

• Outstanding sensitivity

• Bare sensor resists up to +450 °C (customer specific)

• Stable platinum technology

• Excellent reproducibility

• No moving mechanical parts

• Customer-specific sensor available upon request

 

The IST AG FS2 flow sensors are optimal for measuring gas flow and direction.

 

Illustration1)

 

 

Technical Sensor Data:

Dimensions (L x W x H / H2 in mm)*

5.0 x 3.5 x 0.20 / 0.60

Operating measuring range

0 m/s to 1 m/s (half bridge mode)

0 ml/min to 50 ml/min (half bridge mode), tube ID about 1 mm

0 m/s to 100 m/s (CTA mode)

0 l/min to 5 l/min (CTA mode), tube ID about 1 mm

Minimum operating rang

0 ml/min to 2.5 ml/min

Response sensitivity

0.001 m/s (50 μl/min)

Accuracy

< 2 % of the measured value (dependent on the electronics and calibration)

Response time t63

< 0.5 s

Operating temperature range*

-20to +150

Temperature sensitivity

< 0.1 %/K (dependent on the electronics)

Connection*

Cu-wire, enameled, Ø 0.2 mm

Heater*

RH (25) = 34 Ω ±1 %

Measuring element*

Rs_i (25) = 425 Ω ±10 %

Reference element*

RR (25) = 710 Ω ±10 %

Voltage range (nominal)*

2 V to 5 V (dependent on flow rate)

 *customer specific versions on request

 

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