Rotronic

AF1 Air Flow Measurement Transmitter

Cost-effective, high-precision and stable transmitter for measuring air velocity and temperature

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AF1 Air Flow Measurement Transmitter 01111
Af1

The AF1 series is a cost-effective, high-precision and stable transmitter for measuring air velocity and temperature. The devices have a calorimetric sensor and outstanding long-term stability. The measuring range and the output signals can be configured easily with a Software or using the integrated DIP- switches.
 

• High degree of stability and repeatability
• Compact design
• The outputs and measuring ranges can be configured using DIP switches
• Simple mechanical installation
• Outstanding price/performance ratio
• Ideal for HVAC applications
• Modbus RTU via RS485
 

Device typeTransmitter / air flow rate
ParametersAir velocity, temperature
Range of application0...50 °C (housing)
0...80 °C (medium)
Accuracy±3.0 % full-scale
with 23 °C ±3 K, 45 %RH, 1013 mbar
Influence of installation position<3 % of measurement with <10°
Measurement principleCalorimetric
Measurement ranges2 m/s; 5 m/s; 10 m/s; 15 m/s; 20 m/s
Pressure resistance10 bar
Jump responseτ90 after 3s
MediumAir and non-aggressive gases
Power supply / Power consumption8…35 VDC or 12…30 VAC 50/60 Hz
<200 mA
Electrical connectionsScrew terminals
Cable glandM12 x 1.5 (Ø cable 3…6.5 mm)
Measurement interval1 s
Circuit type3-wire
Analog outputs1
Analog output signal (standard)4…20 mA or 0…10 V
Permissible load>10 kΩ (voltage output)
<500 Ω (current output)
Communication interfacesRS-485
HousingPolycarbonate
IP protection ratingIP65
Mounting positionSensor at 90° angle to flow
ConfigurationVia integrated DIP switch
CE / EMC conform EMC Directive 2004/108/EC
Storage and transport conditions-20...60 °C
Dimensions105 x 70 x 32 mm
WeightDuct version: 165 g, Cable version: 260 g

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