. Today, KW targets the following objectives: operate a valid selection of new refrigerants in installations; operate in the best manner to recover old refrigerants; aim at the optimisation of installations from an energy perspective and with a minimal amount of refrigerant; look for optimisation in terms of system regulations. In all applications, KW guarantees environmental protection with the use of substances with ODP (ozone depletion potential) = 0; a very low TEWI (total equivalent warming index) and GWP (global warming potential); and, above all, that are safe for workers, who handle non-explosive,...

Laboratories that intend to obtain certifications on operational quality issued by third-party accreditation entities need complex IQ (Installation Qualification) and OQ (Operational Qualification) operations; both KW and its users need to prepare specific protocols to support them. From -20 C to -50 аC plasma, diagnostic products, some sera and histological findings can be preserved. Temperatures of -80 C are used to preserve materials for long periods, even years. This type of freezers needs a two-stage system due to thermodynamical issues, since the interval between the evaporation temperature...

noticeable average thickness: 190 mm .CFC-, HCFC-free; the door is placed on the upper part, mounted on self-balancing hinges; internal counter doors (in plastic-coated foamed polyurethane resin) sliding on a special track; it has a triple silicone rubber seal, welded joints, heated by the refrigerant itself and with virtually unlimited duration. It has lock and key to close it. Standard equipment includes a pressure-compensation valve to facilitate the operation of opening the door. The freezer comes complete with pivoting wheels to facilitate transportation and placement inside the laboratory....

the corresponding LED lights up and the buzzer is activated. Self-diagnosis test: upon boot up, the freezerВs LEDs and buzzer are activated for about 1. Condensation overpressure alarm The thermodynamical system has a pressure gauge on the high-pressure side of the 1st-stage circuit; when, due to environmental conditions T is too high, no air exchange is taking place, the condenser is dirty, etc., the 1st-stage refrigerant pressure exceeds a preconfigured value, User Menu access protected by password. Password-protected Setup access menu for service operations. Cooling Startup/Shutdown The startup...

Model Capacity Externalmeasurements (lxhxw) Internalmeasurements (lxhxw) Regulation field Average power consumed in Kw Power supply Weight K.130AK.130C litri 103 litri 215 mm. 1850x860x1100 hmm. 2350x915x1100 h mm. 535x385x500 hmm. 1020x420x500 h -90հC -125C-90аC -125C 1,21,6 V 220 - Hz. 50/1 V 220 - Hz. 50/1 Kg. 420 Kg. 450 > KW APPARECCHI SCIENTIFICI

K56HS with graphical recorder 18 >

Water cooling option upon request. Option of Ergonomic handle for the door as well as key lock. Standard pivoting wheels 4,000 VA voltage regulator according to model and capacity. All this permits faster cooling/freezing of the materials being introduced, also in reference to power consumption. for maximum compressor safety: 36-month warranty! > The HS ( H igh S ecurity) series constitutes KWВs standard freezer line at -85C; the PL ( P remium L ine) series represents excellence in very-low-temperature freezers for laboratory use. The HSL ( H igh S ecurity Light) series constitutes KWВs standard...

Е ENTERӔ key to visualise parameters in sequence and store them in memory. Keys to increase or decrease values. Օ STARTӔ key to start and stop the cooling process, with security password on the front of the instrument to enter parameters or enable program startup. -Models with very high capacity (500-600-700 litres) have new available solutions to bypass, during the pull down startup stage, the overheated steam from the 2nd stage to eliminate peaks by the compressors electric motor and reduce the resulting thermomechanical stress. The device, called Eight LEDs Flashing LEDs for alarm conditions....

Self-diagnosis test: upon boot up, the freezerВs LEDs and buzzer are activated for about 1. Power failure alarm If there is no power from the utility, the corresponding buzzer is activated and emits an alternating sound (like a low-frequency Bip-bip). The corresponding LED lights up and the buzzer can be muted. User Menu access protected by password. Password-protected Setup access menu for service operations. There is 24 VDC power fed through a backup battery with a recharge circuit that can provide enough power in case the utility is not providing any. Cooling Startup/Shutdown The startup and...

Model Max. external measurements (lxhxw) in cm Internalmeasurements (lxhxw) in cm Capacityin litres Average powerconsumed in Kw Weightin Kg KUB75 HS 94 x 78 x 78 42 x 35 x 58 85 0,5 100 Power supply: V230/Hz50 Operation range: -40 аC -> -85 C The lower value is guaranteed with room T = +32 аC. Beyond +35 C, it is advisable to use the automatic condensation device using water from the utility (see ACCESSORIES). >

Model Max. external measurements (lxhxw) in cm (*) Internalmeasurements (lxhxw) in cm Capacityin litres Average power consumed in Kw Weightin Kg K52 HSK52E HS K54 HS K54E HS K55 HS K55E HS 90 x 100 x 12490 x 100 x 124 150 x 86 x 124 150 x 86 x 124 195 x 88 x 112 256 x 86 x 117 55 x 40 x 5063 x 48 x 55115 x 40 x 50 123 x 48 x 55 122 x 52 x 75 180 x 50 x 78 110170 230 330 480 702 0,340,34 0,41 0,41 0,80 0,80 130140 290 300 350 440 (*) Regarding depth, +19 footprint requires condensing vents Power supply: V230/Hz50Operation range: -40 аC -> -85 C The lower value is guaranteed with room T = +32 аC....

In terms of power, at -80 аC in an environment of about +25 C, the equipment absorbs approximately 1.1 kW (when ON).For more accuracy an increase in the recorded ON/OFF is reported.In this graph the ON time is about 16 minutes, whereas the OFF time is about 10 minutes at - 80 аC.The mean consumption measured is approximately 610 W at the aforementioned conditions. > The loss is approximately 2,000 BTU/h in standard environmental conditions. >