testo 521 0...100 hPa / +-0.2 % fsv.

Productdescription

Highly accurate with internal differential pressure sensor, ideal for inspecting extraction units and ventilators and for monitoring pressure drops in filters. When used with the Pitot tube, the internal pressure sensor measures velocities from 5 - 100 m/s. The 100 Pa probe, which can be connected externally, measures accurately from 1 - 12 m/s.

  • Temp. compensated differential pressure sensor built into instrument
  • Calculation of velocity and volume flow via Pitot tube measurement
  • Multi-point and timed mean calculation
  • 2 probe sockets for pressure and temperature
  • Save data according to site and analyse on PC/notebook
  • Direct calculation of velocity speed and volume flow
  • Multi-point and timed mean calculation
  • Density compensation
  • Up to two 4 to 20 mA interfaces connectable to hand-held instr.
  • 1 analog signal can be evaluated per interface
  • Scaling of analog signal in hand-held instrument
  • 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
  • Two user-defined probe inputs allow the connection of external probes for pressure, temperature, current/voltage

Technical Data
Memory 25,000
Display LCD display with symbol, 7 segment display and point matrix
Storage temperature -20 to +70 °C
Operating temperature 0 to +50 °C
Power supply Battery/Rechargeable battery,Mains unit 12 V
Battery type 9 V (6LR61)
Weight 300 g
Dimensions 219 x 68 x 50 mm
Material/Housing 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
Meas. Range 0 ... 10 V
Accuracy ±0.01 V
Resolution 0.01 V
Probe type Piezoresistive pressure sensor
Meas. Range 0 ... 100 hPa
Accuracy ±0.2 % of fsv
Resolution 0.01 hPa
Overload 300 hPa
Probe type Piezoresistive pressure sensor 2
Meas. Range 0 to 2000 hPa
Accuracy ±0.1 % of mv
Resolution 0.1 Pa (0638 1347)0.001 hPa (0638 1447)0.01 hPa (0638 1547)0.1 hPa (0638 1847 / 0638 1647)
Probe type Pressure probe
Meas. Range -1 to 400 bar
Accuracy ±0.2 % of fsv
Resolution 0.01 bar
Brochures
PDF Refference
vac_en.pdf (0 views)
Differential pressure meter 0 to 100 hPa incl. battery and calibration protocol
  • Temp. compensated differential pressure sensor in instrument
  • Direct calculation of velocity speed and volume flow
  • Multi-point and timed mean calculation
  • Additional 2 probe sockets for measuring pressure and temp.
Online not buyable Ordernumber: 0560 5210
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