testo 521-2 - Instrumento de medição de pressão diferencial de 0 a 100 hPa (exatidão ±0.1 % do valor final)

Encomenda nº  0560 5211

  • Integrated differential pressure sensor with an accuracy of 0.1 % of f.v.

  • Calculation of the flow velocity and the volume flow via Pitot tube (optional)

  • Multi-point and timed mean calculation

  • 2 probe inputs for additional pressure and temperature probes
     

testo 521-2 (0 a 100hPa 0.2% acc) incluindo bateria e protocolo de calibração

1.078,80 €
excl. VAT

Descrição do produto

The testo 521-2 differential pressure measuring instrument is targeted at precise differential pressure measurements in air conditioning and ventilation technology. It is excellent for use in measuring the pressure drop on filters and in checking fans and extractors. The measuring instrument is also suitable for Pitot tube measurements in ventilation ducts or in process air (in the 5 to 100 m/s range).

The differential pressure measuring instrument has an integrated temperature-compensated differential pressure sensor which measures with an accuracy of 0.1 % of f.v. In addition, you can attach up to 2 further optional probes to the measuring instrument. This means you can flexibly adapt the differential pressure measuring instrument to your application. You have the choice of the following probes:
  • Differential pressure probes
  • Absolute pressure probes
  • Relative pressure probes
  • Temperature probes (e.g. surface probes or immersion and penetration probes)

The practical features of the testo 521-2 differential pressure measuring instrument

The integrated differential pressure sensor enables the testo 521-2 measuring instrument to calculate flow velocity and volume flow using a Pitot tube (which can be ordered separately). The differential pressure measuring instrument also offers timed and multi-point mean calculation.

Furthermore, long-term monitoring is possible: in doing this, measurement data can be saved individually or as a series of measurements. The measurement rate and the number of values to be saved can be selected by the user. Dynamic measurements can be saved in the measuring instrument in the measuring cycle of 0.04 seconds.

The optional ComSoft software enables you to carry out online measurements via your PC, save the measurement data so that it is linked to the measuring location and analyze it on the PC. You can use the optional testo fast printer to print measurement data out directly at the measuring location.

You can choose between the following units for pressure measurement: mbar, hPa, bar, Pa, kPa, inH2O, mmH2O, torr and psi. The mean value, the last measured value and the min./max. values can be displayed simply by pressing a key.

 

O pedido inclui

Testo 521-2 differential pressure measuring instrument, including calibration protocol and batteries.
NTC

Faixa de medição

-40 a +150 °C

Exatidão

±0,2 °C (-10 a +50 °C)*

±0,4 °C Faixa remanescente*

Resolução

0,1 °C

*Accuracy information applies only to instrument without probes connected

Tipo K (NiCr-Ni)

Faixa de medição

-200 a +1370 °C

Exatidão

±0,4 °C (-100 a +200 °C)*

±1 °C (Faixa remanescente)*

Resolução

0,1 °C

*Accuracy information applies only to instrument without probes connected

Sensor de pressão piezoresistivo

Faixa de medição

0 a 100 hPa

Exatidão

±0,1 % valor de escala cheia

Resolução

0,01 hPa

Pressão estática

1000 hPa

Sobrecarga

300 hPa

Zeramento

to 2,5 hPa

Sensor de pressão piezoresistivo externo

Faixa de medição

0 a 2000 hPa

Exatidão

±0,1 % do vm*

Resolução

0,1 Pa (0638 1347)

0,01 hPa (0638 1547)

0,001 hPa (0638 1447)

0,1 hPa (0638 1847 / 0638 1647)

*Accuracy information applies only to instrument without probes connected

Sensor cerâmico (externo)

Faixa de medição

-1 a 400 bar

Exatidão

±0,2 % valor de escala cheia*

Resolução

0,01 bar

*Accuracy information applies only to instrument without probes connected

Dados técnicos gerais

Dimensões

219 x 68 x 50 mm

Temperatura de operação

0 a +50 °C

Carcaça

ABS

Canais

2 externa; 1 interno

Taxa de medição

0,04 s

Conexão

Mangueira: interior Ø 4 mm exterior Ø 6 mm

Tipo de bateria

9 V (6LR61)

Durabilidade

Funcionamento contínuo com sensor interno de pressão: 30h; Com pilhas recarregáveis: 10h; Com pilhas normais: 18h

Tipo de display

LCD

Função de exibição

visor de 7 segmentos e ponto matriz

Atualização de exibição

2x por segundo, em rápidas medições 4x por segundo

Fonte de energia

Battery/Rechargeable battery,Mains unit 12 V

Interface

RS 232

Memória

100 kB; 25.000 valores medidos

Temperatura de armazenagem

-20 a +70 °C

Peso

300 g

Acessórios adicionais e peças de reposição

Cabo de conexão

Encomenda nº: 0430 0143

54,00 €
excl. VAT
15,00 €
excl. VAT

Software e acessórios

Cabo RS232

Encomenda nº: 0409 0178

70,00 €
excl. VAT

Transporte e proteção

TopSafe (estojo de proteção)

Encomenda nº: 0516 0446

61,20 €
excl. VAT