Catálogo General de Material para Laboratorio

Continued on next page 592 W ater Baths, Oil Baths w e b c o d e WW91A004 1 2 3 Water Baths, Memmert The Memmert water bath is available in six sizes and two power classes. As a supplement to the Basic version intended for straightforward temperature control, the Excellent ver- sion provides for precise test procedures with maximum safety. Here, heating from 3 sides ensures premium temperature homogeneity. For the largest-size water bath model, an optional circulation pump is available for an even more homogeneous water temperature. WNB = water bath, natural circulation, BASIC temperature controller WNE =water bath, natural circulation, EXCELLENT temperature controller WPE =water bath, circulation pump, EXCELLENT temperature controller Standard scope of delivery without cover Control systems: • Micro-processor PID-temperature control with integrated self-diagnostics system to find errors quickly • non-contacting switching element • one Pt100 DIN-class A in 4-conductors measurement • integrated digital clock from 1 min. to 99.59 hrs. for: ON permanent operation WAIT (delays on for duration and limited-time operation) HOLD • digital display (LED) of target and actual temperature (resolution 0.1°C), as well as (re- maining) programme run time • Status-LEDs to monitor programme run Double overheat protection: • in case of error-caused excess temperature, the heating is turned off at ca. 10°C above target temperature • mechanic temperature limit TB protection class 1 to turn off heating at 30°C above max. bath temperature Structure stainless-steel housing: • Substance 1.4301 (ASTM 304), corrosion-resistant Interior - heating concept: • easy-to-handle, stainless steel workspace enforced by deep-drawing ribbing, sub- stance no. 1.4301 (ASTM 304), laser-welded • corrosion-protected, large-sized heating placed on 3 sides Technical data: Operating temperature range: min. 5°C (WNB/WNE) 15°C (WPE) above ambi- ent up to +95°C with additional boiling mode (for WPE, only with pump switched off) Setting temperature range: +10°C to +95°C with additional boiling mode (100°C) Power supply: 230 V, 50/60 Hz (other voltages on request) Temporal temperature deviations: ± 0.1 K Spatial temperature deviations: up to size 29: ± 0.25 K, size 45: ± 0.3 K Available models and sizes: Type series WNB With natural circulation and BASIC temperature controller Type Outer L × W × H with flat (sloping) lid mm Inner L×W×H mm Vol. approx. l P rating approx. W Order No. 1 WNB7 468×356×238 (337) 240×210×140 7 1200 44 26 30007 WNB10 578×356×238 (337) 350×210×140 10 1200 44 26 30010 WNB14 578×436×238 (347) 350×290×140 14 1800 44 26 30014 2 WNB22 578×436×296 (405) 350×290×220 22 2000 44 26 30022 WNB29 818×516×238 (343) 590×350×140 29 2400 44 26 30029 WNB45 818×516×296 (401) 590×350×220 45 2800 44 26 30045 Type series WNE With natural circulation and EXCELLENT temperature controller Type Outer L × W × H with flat (sloping) lid mm Inner L×W×H mm Vol. approx. l P rating approx. W Order No. WNE7 468×356×238 (337) 240×210×140 7 1200 10 26 03007 3 WNE10 578×356×238 (337) 350×210×140 10 1200 10 26 03010 4 WNE14 578×436×238 (347) 350×290×140 14 1800 10 26 03014 WNE22 578×436×296 (405) 350×290×220 22 2000 10 26 03022 WNE29 818×516×238 (343) 590×350×140 29 2400 10 26 03029 WNE45 818×516×296 (401) 590×350×220 45 2800 10 26 03046 Heating Units, Refrigerating Units Temperature Controllers