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| | | Pressure meters for all measurement ranges | | |
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| | | testo 521-1/-2 with internal sensor 0 to 100 hPa 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. | | |
| | | testo 521-3 with internal sensor 0 to 250 Pa Using testo 521 -3 even the smallest differential pressures up to 250 Pa are measured. High accuracy and a resolution of 0.1 Pa mean the instrument is ideal for differential pressure measurements in clean rooms. When used with a Pitot tube, the internal pressure sensor measures flow speeds in the range 1 to 20 m/s. | | |
| | | Save data according to site and analyse on PC/notebook | | |
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| | | Pitot tube measurement with external 100 Pa probe | | |
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| | | •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 | | |
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| | | testo 521-1 /0 ... 100 hPa Accuracy 0.2% of fsv Differential pressure meter 0 to 100 hPa incl. battery and calibration protocol Part no. 0560 5210 | | testo 521-2/0to100hPa Accuracy 0.1 % of fsv Differential pressure meter 0 to 100 hPa incl. battery and calibration protocol Part no. 0560 5211 | | testo 521-3/0to2.5hPa Accuracy up to ±0.5 Pa testo 521-3, differential pressure meter 0 to 2.5 hPa, battery and calibration protocol included Part no. 0560 5213 | | |
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| | | | | | | | | | | Technical data | | | | testo 521-1 / testo 521-2 | | | | Probe type | Piezoreslstive pressure sensor (internal) | Plezoresistlve pressure sensor for external pressure probes | | | | Meas. range | 0 ... 100 hPa | 0 to 2000 hPa | | | | Accuracy ±1 digit | +0.2 % of fsvftesto 521-1) ±0.1 % offsvjtesto 521-2) | ±0.1 % of mv | | | | Resolution | 0.01 hPa | 0.1 Pa (0638 1347) 0.001 hPa (0638 1447) 0.1 hPa (0638 1647; 0638 1747; 0638 1847) | | | | Overload | 300 hPa | | | | | Static pressure | 2000 hPa | | | | | testo 521-3 | | | | Probe type | Plezoresistlve pressure sensor (Internal) | Plezoresistlve pressure sensor for external pressure probes | | | | Meas. range | 0 to 2.5 hPa | 0 to 2000 hPa | | | | Accuracy ±1 digit | ±0.5 Pa (0 to 20 Pa) ±(0.5 Pa ±0.5% of mv) (20.1 to 250 Pa) | ±0.1 % of mv | | | | Resolution | 0.1 Pa | 0.1 Pa (0638 1347) 0.001 hPa (0638 1447) 0.1 hPa (0638 1647; 0638 1747; 0638 1847) | | | | Overload | 50 hPa | | | | | Static pressure | 100 hPa | | | | | Common data | | | | Oper. temp, (compensated) 0 to +50 aC | Dimensions 219x68x50 mm | | | | Storage temp. | -20 to +70 °C | Weight 300 g | | | | Memory | 25,000 | □Isplay LCD, 2 lines | | | | PC | RS232 Interface | Battery type 9V(6LR61) | | | | | | | | | | |
| | | Accessories Ordering data Connection hose, silicone, 5m long, max. load 700 hPa (mbar) 0554 0440 | | |
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| | | Connection hose set, 2 x 1 m, coiled, incl. 1/8" screw connection, Pressure-tight up to 20 bar, for probe 0638 1647/1747/1847 | | |
| | | 0554 0441 | | |
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| | | Cable, 1.5 m long, connects probe with plug-In head to meas. Instrument, PUR coating material | | |
| | | 0430 0143 | | |
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| | | TopSafe (protection case), incl. carrier strap, bench stand and magnet. Protects instrument from dust, Impact, scratches | | |
| | | 0516 0446 | | |
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| | | Testo printer with wireless IRDA and Infrared Interface, 1 rol of thermal paper and 4 AA batteries | | |
| | | 0554 0547 | | |
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| | | External fast charger for 1 -4 AA rech. batteries, Incl. 4 NIMH rech. batteries with Individual cell charging and charge control display, Incl. Impulse trickle charging, Integrated discharge function, with built-in International mains plug, 100-240 V, 300 mA, 50/60 Hz | | |
| | | 0554 0610 | | |
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| | | ComSoft 3 - Professional with data management, Incl. database, analysis | | |
| | | 0554 0830 | | |
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| | | and graphics function, data analysis, trend curve | | |
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| | | RS232 cable, connects Instrument to PC (1.8 m) for data transfer | | |
| | | 0409 01 78 | | |
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| | | Transport case, for measuring Instrument, probes, Prandtl Pitot tube, accessories | | |
| | | 0516 0527 | | |
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