Thermal Mass Flow Sensor - FS7.4W

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• Easy adaptation in various applications and housings
• Excellent long-term stability
• Simple signal processing
• Simple calibration
• Stable platinum technology

Model Number: FS7.4W
Data Sheet:

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Product Specification

Further advantages of the FS7.4W thermal mass flow sensor include:

• Easy adaptation in various applications and housings

• Excellent long-term stability

• Simple signal processing

• Simple calibration

• Stable platinum technology

• Excellent reproducibility

• Customer-specific sensor available upon request

The IST AG FS7.4W flow sensors are optimal for measuring gas flow in various flow applications.

Illustration¹⁾

Technical Sensor Data:

Dimensions (L x W x H / H2 in mm)*	6.9 x 2.4 x 0.20 / 0.60
Operating measuring range	0 m/s to 100 m/s
Response sensitivity	0.01 m/s
Accuracy	< 3 % of the measured value (dependent on the electronics and calibration)
Response time t₆₃	~200 ms (jump from 0 to 10000 sccm)
Operating temperature range*	-20℃ to +400℃
Temperature sensitivity	< 0.1 %/K (dependent on the electronics)
Connection*	3 pins, Pt/Ni-wire, ø 0.2 mm, 15 mm
Heater*	R_H (0℃) = 45 Ω ±1 %
Reference element*	R_s (0℃) = 1200 Ω ±1 %
Voltage range (nominal)*	2 V to 5 V (at ∆ T = 30 K (0 m/s ≤ vgas ≤ 100 m/s)
Maximum heater voltage*	3 V (at 0 m/s)