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DIFFERENTIAL PRESSURE METER
Testo 521 Differential Pressure Meter Velocity Meter

521 Differential Pressure Velocity Meter 0...100 hPa / +-0.2 % fsv
521 Differential Pressure Velocity Meter 0...100 hPa / +-0.1 % fsv
521 Differential Pressure Velocity Meter 0...2,5 hPa
testo 521 differential pressure meter 0 to 100 hPa incl. battery and calibration protocol
testo 521 differential pressure meter 0 to 2,5 hPa incl. battery and calibration protocol
The highly accurate differential pressure meter, testo 521, with an internal pressure sensor
from 0 to 100 hPa is ideal for Pitot tube measurements in the range 5 to 100 m/s. testo 521 is available in 2 accuracy classes. testo 521-1 with an internal pressure sensor with Class 0.2, testo 521-2 with an internal pressure sensor with Class 0.1.
 

  • Temp. compensated differential pressure
    sensor in instrument

  • Additional 2 probe sockets for measuring
    pressure and temperature

  • Direct calculation of velocity speed and
    velocity flow

  • Multi-point and timed mean calculation

  • Density compensation

  • Up to two 4 to 20 mA interfaces connectable
    to hand-held instr

  • Transmitter can be supplied with power from
    testo 521, for example

  • 4 to 20 mA interface can be connected to testo 521, 526, 400, 650 und 950 hand-held
    instruments

In the case of velocity speeds in the range from 1 to 12 m/s, you can carry out accurate measurements using the 100 Pa probe which can be attached externally. The measurement data can be saved according to location and analyzed on your PC or printed on site on your Testo printer.
Memory 25.000
Storage temperature -20 to +70 °C
Operating temperature 0 to +50 °C
  Battery/Rechargeable battery, Mains unit 12 V
Battery type 9 V, IEC 6LR61
Weight 300 g
Dimensions 219 x 68 x 50 mm
  ABS
Probe type NTC
Meas. range -40 to +150 °C
Accuracy ±0,2 °C (-10 to +50 °C)
±0,4 °C (remaining range)
Resolution 0.1 °C
Probe type Type K
Meas. Range -200 to +1370 °C
Accuracy ±0,4 °C (-100 to +200 °C)
±1 °C (remaining range)
Resolution 0,1 °C
Probe type Piezoresistive pressure sensor
Meas. Range 0 to 100 hPa
Accuracy ±0.1 % of fsv
Resolution 0.01 hPa
Reaction time 300 hPa
Probe type Piezoresistive pressure sensor
Meas. Range 0 to 2000 hPa
Accuracy ±0.1 % of fsv
Resolution 0.1 Pa (0638 1347)
0.001 hPa (0638 1447)
0.01 hPa (0638 1547)
0.1 hPa (0638 1847)

Please email sales@hotektech.com or call 253-927-6186 if you are interested in a purchase, or
  need additional information.

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