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Testo 521-1 Differential Pressure Manometer is a precision pressure measurement instrument with an temperature-compensated integrated internal pressure sensor and features user defined probe sockets for up to two additional probes. Testo 521-1 also directly calculates flow velocity and volume flow, has a 2 line display with text menu guide, and a bright display backlight.
Features
| Characteristics: | Testo 521-1 Differential Pressure Manometer |
| Differential pressure sensor is built-in and temperature compensated | |
| Further measurement of pressure and temperature with 2 additional probe inputs | |
| Flow velocity and volume flow calculated directly | |
| Direct zeroing of display value from pressure probes | |
| Displays Data Hold/Max/Min values | |
| Optional PC software for data storage by measurement site as well as analysis, archiving and documentation |
|
| Calculation of point and timed mean value | |
| Testo 521-1 includes: | Calibration protocol and batteries |
Specifications
| Specifications: | Testo 521-1 Differential Pressure Manometer | ||||
| General technical data | |||||
| 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) | ||||
| Battery life | Continuous operation w/ internal pressure sensor: 30 h With rech. battery: 10 h With carbon battery: 18 h | ||||
| Weight | 300 g | ||||
| Dimensions | 219 x 68 x 50 mm | ||||
| Housing material | ABS | ||||
| Memory | 100 kB (corresponds to approx. 25000 readings) | ||||
| Connection | Hose: inner Ø 4 mm outer Ø 6 mm | ||||
| Display | LCD display with symbol, 7 segment display and point matrix | ||||
| Updating rate in display | 2x per second, in fast measurement 4x per second | ||||
| Measuring rate | from 0.04 seconds | ||||
| PC | RS232 interface | ||||
| Other features | 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 | ||||
| Warranty | 2 years | ||||
| Optional Sensor Data | |||||
| Sensor Type | Piezoresistive pressure sensor | Piezoresistive pressure sensor For external pressure probes | Ceramic sensor for external pressure probes | NTC | Type K (NiCr-Ni) |
| Measuring range | 0 to 100 hPa | 0 to 2000 hPa | -1 to 400 bar | -40 to +150 °C | -200 to +1370 °C |
| Accuracy ±1 digit* | ±0.2 % of fsv | ±0.1 % of mv | ±0.2 % of fsv | ±0.2 °C (-10 to +50 °C) ±0.4 °C (remaining range) | ±0.4 °C (-100 to +200 °C) ±1 °C (remaining range) |
| Resolution | 0.01 hPa | 0.1 Pa (0638 1347) 0.001 hPa (0638 1447) 0.01 hPa (0638 1547) 0.1 hPa (0638 1847 / 0638 1647) | 0.01 bar | 0.1 °C | 0.1 °C |
| Static pressure | 1000 hPa (abs) | ||||
| Overload | 300 hPa | ||||
| Zeroing | to 2.5 hPa | ||||
| *Accuracy information applies only to instrument w/o probes connected | |||||
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
