testo 521-1, manometro per pressione differenziale da 0 a 100 hpa, con batteria e protocollo di collaudo Descrizione testo 521, manometro per pressione differenziale ad alta precisione, dotato di sensore interno da 0 a 100 hpa, ideale per le misure con tubi di Pitot nel campo da 5 a 100 m/s. testo 521 è disponibile in 2 versioni con diverse classi di precisione: testo 521-1 con sensore di pressione interno Classe 0,2, testo 521-2 con sensore di pressione interno Classe 0,1. In caso di velocità comprese nel campo da 1 a 12 m/s, è possibile effettuare misure precise tramite la sonda 100 Pa, collegabile esternamente. I valori misura possono essere memorizzati secondo la locazione e analizzati su PC oppure stampati in campo su stampante testo. NTC Tipo K (NiCr-Ni) -40 to +150 C -200 to +1370 C ±0,2 C (-10 to +50 C)* 0,4 C (Remaining Range)* ±0,4 C (-100 to +200 C)* 1 C Remaining Range* Risoluzione 0,1 C Sensore di pressione piezoresistivo Risoluzione 0,1 C Sensore di pressione piezoresistivo esterno Risoluzione Pressione statica Sovraccarico Azzeramento 0 to 100 hpa ±0,2 % del valore di fondo scala 0,01 hpa 1000 hpa (abs) 300 hpa... 2,5 hpa 0 to 2000 hpa ±0,1 % del v.m.* Risoluzione 0,1 Pa (0638 1347) 0,01 hpa (0638 1547) 0,001 hpa (0638 1447) 0,1 hpa (0638 1847 / 0638 1647) * information applies only to instrument without
generali Sensore ceramico (esterno) Involucro ABS -1 to 400 bar Canali Garanzia Ciclo di misura Collegamento Varie Tipo batteria Tempo di fermo Dimensioni Tipo display Funzione display Aggiornamento display Alimentazione 2 esterno; 1 interno 2 anni 0,04 s Hose: Ø interno 4 mm Ø esterno 6 mm Collegamento alla rete e caricabatteria integrato; Riconoscimento automatico delle sonde collegate; Possibilità di selezione tra 9 unità di misura: mbar, hpa, bar, Pa, kpa, inh2o, mmh2o, torr, psi 9 V (6LR61) Funzionamento continuo senza sonda pressioneinterna: 30 h; Con batteria ricaricabile: 10 h; Con batteria al carbonio: 18 h 219 x 68 x 50 mm LCD 7 segmenti e matrice a punti 2x al secondo, 4x al secondo per letture rapide Battery/Rechargeable battery,mains unit 12 V Risoluzione ±0,2 % del valore di fondo scala* 0,01 bar Interfaccia RS 232 Temperatura di lavoro Memoria Temperatura di stoccaggio Peso 0 to +50 C 100 kb; 25.000 valori di misura -20 to +70 C 300 g
Product description The testo 521-1 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 temperaturecompensated differential pressure sensor which measures with an accuracy of 0.2 % 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 521-1 differential pressure measuring instrument The integrated differential pressure sensor enables the testo 521-1 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. Delivery Scope testo 521-1 differential pressure measuring instrument, including calibration protocol and batteries.
Temperature - NTC -40 to +150 C Temperature - TC Type K (NiCr-Ni) -200 to +1370 C ±0.2 C (-10 to +50 C)* 0.4 C (Remaining Range)* ±0.4 C (-100 to +200 C)* 1 C Remaining Range* Resolution 0.1 C Resolution 0.1 C Differential pressure (internal sensor) - Piezoresistive Differential pressure (external probe) - Piezoresistive 0 to 100 hpa 0 to 2000 hpa ±0.2 % of fsv ±0.1 % of mv* Resolution Static pressure Overload Zeroing 0.01 hpa 1000 hpa (abs) 300 hpa to 2.5 hpa Resolution 0.1 Pa (0638 1347) 0.01 hpa (0638 1547) 0.001 hpa (0638 1447) 0.1 hpa (0638 1847 / 0638 1647) probes connected Differential pressure (external probe) - Ceramic Resolution -1 to 400 bar ±0.2 % of fsv* 0.01 bar * information applies only to instrument without
General technical data Housing Channels Warranty Measuring rate Connection Miscellaneous Battery type Battery life Dimensions Display type Display function Display update Power supply Interface Operating temperature Memory ABS 2 external; 1 internal 2 years 0.04 s Hose: inner Ø 4 mm outer Ø 6 mm Mains connection and battery recharging in instrument; Automatic recognition of all connected probes; 9 measurement units selectable: mbar, hpa, bar, Pa, kpa, inh₂o, mmh₂o, torr, psi 9 V (6LR61) Continuous operation w/ internal pressure sensor: 30 h; With rech. battery: 10 h; With carbon battery: 18 h 219 x 68 x 50 mm LCD 7 segment display and point matrix 2x per second, in fast measurement 4x per second Battery/Rechargeable battery,mains unit 12 V RS232 0 to +50 C 100 kb; 25,000 measuring values Storage temperature -20 to +70 C Weight 300 g