Thermal Mass Flow Sensor

Product Attribute:

Applicationt: 

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Production Description:

Sensors For Gas Flow:
    The IST AG thermal mass flow sensor combines the benefits of small dimensions with a robust design and easy adaptation in various applications and housings. IST AG offers considerable solutions for various flow applications and the option to customize parameters to meet application-specific requirements at a beneficial pricing. The IST AG gas flow portfolio consists of thermal flow sensors based on both anemometric and calorimetric principles.
    Development channels guarantee the best possible adaptation of the sensors, whether in terms of dynamic range, response time, directional detection or ambient conditions.
 
Benefits & Characteristics:

•  Detection of flow direction
•  Excellent long-term stability
•  Simple signal processing
•  Simple calibration
•  Outstanding sensitivity
•  Bare sensor element resists up to +450 (customer specific)
•  Stable platinum technology
•  Excellent reproducibility
•  No moving mechanical parts
•  Customer-specific sensor available upon request

 
Technical 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 range:	0 ml/min to 2.5 ml/min
Response sensitivity:	0.001 m/s (50 l/min)
Accuracy:	< 2 % of the measured value (dependent on the electronics and calibration)
Response time t63:	< 0.5 s
Operating temperature range:*	-20 to +150
Temperature sensitivity:	< 0.1 %/K (dependent on the electronics)
Connection:*	Cu-wire, enameled, Ø 0.2 mm
Heater:*	RH (25) = 34 ±10 %
Measuring element:*	Rs_i (25) = 425 ±10 %
Reference element:*	RR (25) = 710 ±10 %
Voltage range (nominal):*	2 V to 5 V (dependent on flow rate)

* Customer-specific alternatives available