Measurement Solutions for Refrigeration Technology

50Professional analysis of refrigeration systemstesto 454The testo 454 multi-functionmeasuring instrument is ideal foruse on large refrigerationsystems. By combining severaldata loggers, many parameters ina refrigeration system can bemeasured simultaneously (e.g. ina cold water substitute:superheating/subcooling +water’s input and outputtemperature + high pressure +low pressure).Concepttesto 454 is the system forflexible measurement of differentmeasurement data.Main features:• Simultaneous measurement atseveral measurement points• User defined probe sockets• 1 to more than 200measurement channels• Data transmission with theTesto data bus• Modular layout of systemcomponentsTesto databus controllerto read and controlloggers via laptop/PCRecommended Set: Professional Set for large-scalerefrigeration systemsMeasure superheating/subcooling and the oil pressurein an industrial refrigeration systemDatabus controller with USB connection incl. software ComSoft 3, cable for Testodatabus, USB cable and terminal plugLogger, measures and saves (max. 250,000 readings), incl. 4 user defined probesockets, alarm output/event trigger socket, stand/wall holderLow pressure probe, refrigerant-proof stainless steel, up to 10 bar, screw-in thread 7/16"UNFHigh pressure probe, refrigerant-proof stainless steel, up to 40 bar, screw-in thread 7/16"UNFConnection cable, 2.5 m long, for pressure probesConnection cable, 2.5 m long, for pressure probesVelcro probe for pipes with diameter of max. 75 mmVelcro probe for pipes with diameter of max. 75 mmPower box, connected to control unit to increase field operating life and supply power toTesto data busPower supply for power box (110/230 V; 50/60 Hz, 12 V, 3 A)Connection cable, 5 m, for Testo data bus0554 05890577 45400638 17410638 19410409 02020409 02020628 00190628 00190554 10450554 11430449 0043Low/High pressure probesIllustrationOverload Meas. range Accuracy Conn.Part no.Low pressure probe, refrigerant-proofstainless steel, up to 10 bar, screw-inthread 7/16" UNF25 bar -1 to +10 bar ±1% of fsv Plug-in head,connection cable0409 0202 required0638 1741High pressure probe, refrigerant-proofstainless steel, up to 40 bar, screw-inthread 7/16" UNF120 bar -1 to +40 bar ±1% of fsv Plug-in head,connection cable0409 0202 required0638 1941Temperature probesIllustrationMeas. rangeAccuracyPart no.Velcro probe for pipes with diameter of max.75 mm, Probe type Pt100280 mm-50 to +150 °C Class B0628 0019More probes available. Send for the brochure: “Multi-Function Measuring Instruments”