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

Productdescription

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. 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 analysed on your PC or printed on site on your Testo fast printer.

  • Temp. compensated differential pressure sensor in instrument
  • Additional 2 probe sockets for measuring pressure and temp.
  • 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
0560_5210_en_01.pdf (57 views)
PDF Refference
MeasurementParameters_velocity_en.pdf (61 views)
testo 521-1 (0 to 100hPa 0.2% acc) battery andcalibration protocol included
  • 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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