Catalog excerpts
Digital manifold Calculate superheating and subcooling simultaneously Integrated vacuum measurement supports the evacuation of Temperature-compensated tightness test Automatic ambient pressure measuring 40 refrigerants are stored in the instrument 4-way valve block for fast and efficient work The digital manifold testo 557 is a robust tool for all measurements on a refrigeration system or a heat pump. The manifold disposes of a robust 4-way metal valve block with additional connection options, for example for a vacuum pump or refrigerant bottle. This provides a definite advantage in the handling and enables fast and efficient service, maintenance and commissioning. The solid housing reliably protects the testo 557 against any strain in everyday work. The integrated vacuum measurement enables reliable measurement results when evacuating refrigeration systems and heat pumps. Especially the automatic heat pump mode, which makes switching over the refrigerant hoses superfluous, the temperature-compensated tightness test function and the automatic ambient pressure compensation, make the work more safe, efficient and precise than ever
Open the catalog to page 1Technical data / Accessories General technical data Digital manifold testo 557 ind. batteries and calibration protocol testo 557-2 set, the digital manifold for commissioning, service and maintenance, 4-way valve block, Integrated vacuum measurement, incl. 2 clamp probes, transport case, calibration Oper. temp. Storage temp. Battery life Approx. 150 h (without Illumination) Print media Sensor types Accessories for measuring instrument ' also suitable for testo 557
Open the catalog to page 2Probe type Probe shaft/probe shaft tip Efficient, robust NTC air probe Surface probes The suspension hook guarantees secure attachment of the digital manifold during measurement. Clamp probe for pipes from 0 6 Large, backlit display
Open the catalog to page 3testo 557 11:42 Seite 4 We measure it. 0981 3584/msp/A/03.2012 14.08.2012 Subject to change without notice. testo-557-P04 www.testo.com
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