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Waterbath WNB 22 memmret
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Waterbath WNB 22

Standard delivery Waterbath

On this page, you can find all the essential technical data on the Memmert water bath. Our customer relations team will be pleased to help if you want further information. If you should require a customised special solution, please contact our technical specialists at


Alat Laboratorium Umum

Setting temperature range+10 to +95 °C and boiling stageWorking temperature range in °Cmin. 5 above ambient up to +95 °C with additional boiling mode

Control of standard components

Temperature sensor1 Pt100 sensor class A in 4-wire-circuitTimerintegrated digital timer from 1 min. to 99,59 hours for: ON continuous operation WAIT (delayed on for continuous and limited timed operation) HOLD


Temperature controlmechanical temperature limiter TB protection class 1 switching the heating off at approx. 30°C above max. temperature of the bathTemperature controlin case of overtemperature due to failure, the heating is switched off at approx. 10°C above the set temperature (fixed value)Autodiagnostic systemmicroprocessor PID-temperature controller with integrated autodiagnostic system with fault indicator

Heating concept

Heating Bathscorrosion-proof large-area heating on three sides

Standard equipment

Controllerdigital display (LED) of set and actual temperature (0,1°C resolution) and of (remaining) programme time

Stainless steel interior

Dimensions W x H x D in mmw(A) x h(C) x d(B): 350 x 220 x 290 mmInterioreasy-to-clean interior, made of stainless steel, reinforced by deep drawn ribbing, material no. 1.4301 (ASTM 304), laser-weldedVolume22 lLiquid level min.(H) 177 mmLiquid level max.(I) 200 mm

Textured stainless steel casing

Dimensionsw(D) x h(G) x d(E): 578 x 405 x 436 mm

Electrical data

Voltage230 V, 50/60 HzElectrical loadapprox. 2000 W (during heating)

Ambient conditions

InstallationThe vent openings in the left and back side must remain unobstructed. Minimum wall spacing on all sides is 80 mm. The minimum spacing from the top of the bath to the next ceiling is 750 mm.Ambient temperature+5 °C to +40 °CHumidity rhmax. 80 %, non-condensingOvervoltage categoryIIPollution degree2

Packing/shipping data

Transport informationThe appliances must be transported uprightCustoms tariff number8419 8998Country of originFederal Republic of GermanyWEEE-Reg.-No.DE 66812464Dimensions approx incl. cartonw x h x d: 670 x 530 x 460 mmNet weightapprox. 16 kgGross weight cartonapprox. 23 kg

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