AF1 Air Flow Measurement Transmitter

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

Starting At
$439.00 CAD
Normally ships in 2-3 Weeks

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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 type Transmitter / air flow rate
Parameters Air velocity, temperature
Range of application 0...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 principle Calorimetric
Measurement ranges 2 m/s; 5 m/s; 10 m/s; 15 m/s; 20 m/s
Pressure resistance 10 bar
Jump response τ90 after 3s
Medium Air and non-aggressive gases
Power supply / Power consumption 835 VDC or 1230 VAC 50/60 Hz
<200 mA
Electrical connections Screw terminals
Cable gland M12 x 1.5 ( cable 36.5 mm)
Measurement interval 1 s
Circuit type 3-wire
Analog outputs 1
Analog output signal (standard) 420 mA or 010 V
Permissible load >10 kΩ (voltage output)
<500 Ω (current output)
Communication interfaces RS-485
Housing Polycarbonate
IP protection rating IP65
Mounting position Sensor at 90 angle to flow
Configuration Via integrated DIP switch
CE / EMC conform EMC Directive 2004/108/EC
Storage and transport conditions -20...60 C
Dimensions 105 x 70 x 32 mm
Weight Duct version: 165 g, Cable version: 260 g