The testo 552 is a digital vacuum measuring instrument for the evacuation of refrigeration systems and heat pumps. It measures even the smallest absolute pressures and provides highly precise information on the status of the dehumidification of a system (removal of foreign substances, incl. oils or foreign gases).
The testo 552 is a digital vacuum measuring instrument for the evacuation of refrigeration systems and heat pumps. It measures even the smallest absolute pressures and provides highly precise information on the status of the dehumidification of a system (removal of foreign substances, incl. oils or foreign gases).
Discontinued!
This product has been discontinued and is no longer available.
This is the direct replacement:
Features
Applications
| Measuring range vacuum | 1,100 to 0 mbar / 825,080 to 0 micron |
| Accuracy vacuum ±1 digit (at +22 °C, trust level 95%) | 0 to 1,33 hPa / 0 to 1,000 micron: up to ±10 micron 0 to 200 hPa / 0 to 150,000 micron: ±0.3% FS = ±0.6 hPa 200 to 1,100 hPa / 150,000 to 825,080 micron: ±0.3% FS = ±3.3 hPa |
| Resolution vacuum | 0.01 hPa / 10 micron |
| Overload vacuum | absolute: 6 bar / 87 psi (relative: 5 bar / 72 psi) |
| Storage temperature | .-20 to +50 °C |
| Operating temperature | .-20 to +50 °C |
| Dimensions | 250 x 165 x 55 mm |
| Protection class | IP42 |
| Sensor | Absolute pressure sensor |
| Parameter | mmHg, Torr, mbar, hPa, micron, inH20, inHg, Pa |
| Measuring rate | 0.5 s |
| Measuring range vacuum | 1,100 to 0 mbar / 825,080 to 0 micron |
| Accuracy vacuum ±1 digit (at +22 °C, trust level 95%) | 0 to 1,33 hPa / 0 to 1,000 micron: up to ±10 micron 0 to 200 hPa / 0 to 150,000 micron: ±0.3% FS = ±0.6 hPa 200 to 1,100 hPa / 150,000 to 825,080 micron: ±0.3% FS = ±3.3 hPa |
| Resolution vacuum | 0.01 hPa / 10 micron |
| Overload vacuum | absolute: 6 bar / 87 psi (relative: 5 bar / 72 psi) |
| Storage temperature | .-20 to +50 °C |
| Operating temperature | .-20 to +50 °C |
| Dimensions | 250 x 165 x 55 mm |
| Protection class | IP42 |
| Sensor | Absolute pressure sensor |
| Parameter | mmHg, Torr, mbar, hPa, micron, inH20, inHg, Pa |
| Measuring rate | 0.5 s |
