Measured variables

• Flue gas velocity
• Volume flow¹⁾
• Temperature

Measuring ranges

• 0 ... 40 m/s
• 0 ... 3 000 000 m³/h
• 0 ... 400 °C

Measuring principle

Ultrasonic transit-time differential

Sample gas temperature

0 ... 300 °C, optional higher

Sample gas pressure

-50 ... +20 hPa, optionally higher

Channel diameter

0.5 ... 13 m, temperature-dependent

Ambient temperature

-20 up to +50 °C, measuring head -40 up to +70 °C

Degree of protection

IP65

Measured value output

0/4 ... 20 mA, 400 ?
Modbus RTU bi-directional

Digital outputs

2 relay outputs, load rating 48 V/0.5 A

Digital inputs

None

Accuracy

< 2 %

Detection limit

< 0.3 % of measuring range

Reference point drift

< 0.3 % of measuring range / month

Zero point drift

< 0.2 % of measuring range / month

Auxiliary power

24 V DC/0.5 A

Dimensions standard measuring head

O 190 x 570 mm

Weight

17 kg

Purge air supply

Purge air quantity

Approx. 80 m³/h

Auxiliary power

115/230 V, 50/60 Hz, 0.37/0.43 kW

Dimensions (H x W x D)

350 x 550 x 500 mm

Weight

12 kg

Degree of protection

IP55