The testo 552 digital micron gauge is ideal for monitoring the evacuation of air conditioning, refrigeration, and heat pump systems. With built-in Bluetooth, it also links to your smart phone or tablet through the free testo SMART App. This allows for remote data monitoring and report generation. It is rich in features that make your work faster, easier, and more accurate. Precise vacuum measurements measured at single digit resolutions are done with Pirani sensors. The testo 552 provides real time calculations for the saturation temperature of water, which determines the proper micron/temperature levels at which moisture is removed from the system. These internal calculations inform you when the pressure is low enough to meet your evacuation target. This saves you time, and assures that the system is now free from moisture and contaminants. User defined alarm points alert you when target values are reached.| General technical data |
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| | Dimensions | 10 x 6 x 2 in. / 250 x 165 x 55 mm |
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| | Operating temperature | 14.0° to 122.0 °F / -10 to +50 °C |
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| | System requirements | requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0 |
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| | Battery life | 50 hrs (without Bluetooth/backlighting) |
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| | Storage temperature | -4.0° to 122.0 °F / -20 to +50 °C |
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| | Interface | Bluetooth® 4.0 wireless technology |
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| | Parameter | mbar; micron; mmHg; Torr; inHg; inH20; hPa; Pa |
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| Absolute Pressure |
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| | Measuring range | 0 to 0.40 psi / / 0 to 26.66 mbar /
0 to 20000 micron |
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| | Accuracy | ±(10 micron + 10 % of mv) (100 to 1000 micron) |
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| | Resolution | 1 micron (0 to 1000 micron) /
10 micron (1000 to 2000 micron) /
100 micron (2000 to 5000 micron) / |
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| | Overload | absolute: 87.0 psi / 87 psi / absolute: 6.0 bar / 87 psi
(relative: 72.5 psi / 72 psi) / (relative: 5.0 bar / 72 psi) |
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| Delivery Scope | testo 552, digital vacuum micron gauge with Bluetooth |
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| Applications | Complying with manufacturer's specifications
Some manufacturers specify exactly what the absolute pressure must be for you to evacuate your air conditioning systems and how long this pressure must be maintained. Compliance with these specifications is simple and easy thanks to the flexible setting of the alarm threshold in the testo 552.
Connect to the testo 570 Digital Manifold
When you connect the testo 552 Digital Vacuum Gauge to the testo 570 Digital Manifold, you can save the testo 552's readings directly on a laptop via the optional EasyKool software. This allows data-logging and/or on-site printing.
Complying with manufacturer's specifications
Some manufacturers specify the desired micron lower limit that must be achieved to evacuate their air conditioning systems and how long this pressure must be maintained. Compliance with these specifications is simple and easy thanks to the flexible setting of the alarm threshold in the testo 552.
Evacuating AC/R systems
The testo 552 Digital Vacuum Gauge is for the evacuation of heat pumps, air conditioning, and refrigeration systems. The innovative testo 552 utilizes a sensor that, unlike the competition, requires no cleaning and is not affected by contamination. Never worry about a dirty sensor causing false readings. Trust your testo 552 to always be accurate. |
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Product Family
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UPS Hoilday Delivery Schedule
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You can also find answers to some common questions on our FAQ page
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