Testo’s 557 Digital Manifold Kit with Bluetooth was designed for more efficient and precise measurement results. The 557 comes supplied with 4 hoses, each 5 ft long: 3 hoses (blue, red, yellow) with 7/16‘‘ UNF (straight and 45° angle), 1 Hose (yellow) with 5/8‘‘ UNF, (straight and 45° angle) and two temperature clamp probes. The external Pirani gauge allows users to obtain vacuum measurements with the Pirani vacuum probe. Each 557 provides accurate measurements of high and low pressure with the two temperature compensated pressure sensors. Testo has reduced the risk of errors caused my manual calculation with the automatic simultaneous calculation of superheating and sub-cooling. More still, the Testo 557 is built with efficient features and functions like compensated leakage testing, automatic heat pump mode, automatic ambient pressure compensation and more.
Specifications
Temperature
Measuring range
-58° to 302 °F / -50 to +150 °C
Accuracy
±0.9 °F / ±0.5 °C
Resolution
32.2 °F / 0.1 °C
Probe connection
2 x Plug-in (NTC)
Pressure measurement
Measuring range
-15 to 870 psi / -1 to 60 bar
Accuracy
±0.5 % of full-scale value
Resolution
0.14 psi / 0.01 bar
Probe connection
3 x 7/16" – UNF + 1 x 5/8'' – UNF
Overload rel. (high pressure)
943 psi / 65 bar
Vacuum
Measuring range
0 to 20000 micron
Accuracy
± (10 micron + 10 % of mv) (100 to 1000 micron)
Resolution
1 micron (0 to 1000 micron)
10 micron (1000 to 2000 micron)
100 micron (2000 to 5000 micron)
500 micron (5000 to 10000 micron)
5000 micron (10000 to 20000 )
General technical data
Weight
139.05 oz. / 3942 g
Dimensions
8.7 x 4.9 x 2.8 in. / 220 x 125 x 70 mm
Operating temperature
-4.0° to 122.0 °F / -20 to +50 °C
Protection class
IP42
Product colour
Black
Battery life
250 h (without illumination, without Bluetooth®, without vacuum probe)
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