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Semi-conductor hot film measurement element

· Fast response time

· Reliable, stable measurement over the entire life cycle

Individual electronic calibration

· High level of accuracy

· Application-specific characteristic curves

· Diagnostic options

Integrated temperature sensor

· Simultaneous media temperature measurement

Compact and robust design with flange connection

· Simple and flexible integration in flow channels(pipes) and a wide variety of systems

· Twist-proof installation

Bi-directional flow measurement

· Detection of backflows and pulsations

Air mass

0 – 50…0 – 3,000 kg/h1)

Temperature

-30…120°C

Supply voltage

12 V (9…17 V)

Electrical characteristics

Supply voltage

12 V (9…17 V)

Air mass output signal

1…4.85 V, ratiometric to the reference voltage (main flow)

1…0.33 V, ratiometric to the reference voltage (backflow)

Temperature output signal

NTC resistance output 2 k (25°C)

Reference voltage

5 V ± 0.2 V

Overvoltage protection

17 V

Reverse polarity protection

17 V

Diagnostic areas (detected sensor error)

< 4% and > 97.5% of the reference voltage

Total air mass error

2% of the measurement value (25°C) 4)

Total temperature error

± 1% (25°C), corresponding to the NTC characteristic curve

Response time (t63)

< 20 msec

Ambient temperature range

-30…120°C

Operating temperature range

-30…85°C

Media compatibility

Air

ESD (ISO/TR 10605)

4 kV to contacts

EMC (ISO 11452-5)

100 V/m (Strip line)