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Summary of Contents for Memmert WNB 7
- Page 1 OPERATING INSTRUCTIONS Waterbath WNB 7 - 45...
- Page 2 BASIC page 2...
- Page 3 1 General notes and safety notes safety notes You have purchased a technically fully proven product which has been produced in Germany with the use of high-grade materials and the application of the latest manufacturing techniques; it has been factory tested for many hours. For this waterbath we guarantee spare parts to be available up to 10 years.
- Page 4 2 Technical data Model Volume [liter] Usable bath length A [mm] Usable bath width B [mm] Usable bath depth C [mm] Housing length D [mm] Housing width E [mm] Housing height (with fl at cover) F [mm] Housing height (with gable cover) G [mm] Weight [kg] Current consume [A] 10,4...
- Page 5 2.1 Material quality Material quality Memmert is using stainless steel (Mat.Ref. 1.4301) for the external casing as well as for the interior, an outstanding material because of its high stability, optimum hygienic features and corrosion resistance against many (not all!) chemical combinations (Attention e.g. at chlorine combinations!).
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Page 6: Installation
2.5 Standard equipment Standard equipment • Electronic fuzzy-supported PID process controller with delayed programme start and programmable hold time. The controller has permanent power matchinig and an autodiagnostic system for rapid fault fi nding • Recessing push/turn control for simple operation of bath •... - Page 7 max water level min water level drain valve Operation with non-fl ammable thermostating liquids only! Operation with non-fl ammable thermostating liquids only! Note • The tray may suffer damage as a result of corrosion and pitting, causing the temperature control fl...
- Page 8 4 Bath construction and operation Bath construction and operation relatively largest heat loss (since fur- minimum heat loss (since thest away from the heated ribs) very close to the heated ribs) bath Insulation heating elements The heating positioned on three sides around the tank ensures a natural water circulation of the liquid inside, thus securing an optimal uniform temperature distribution.
- Page 9 4.2 Switching on Switching on The bath is switched on by pressing the push/turn control and can be operated in connection with the SET-key. Bath switched off: The push/turn control is pushed in and protected against damage. 4.3 Setting the 4.3 Setting the parameters parameters A parameter can be selected by rotating the push/turn control;...
- Page 10 4.3.1 Temperature setpoint 4.3.1 Temperature setpoint Adjustment range: Adjustment range: ϑ 10°C to 95°C or ca. 100°C with 90°C activation of the boiling mode Setting and indication accuracy: Setting and indication accuracy: 0,1°C The bath starts to heat up immediately to the set temperature. Rotate the push/turn control until the symbol fl...
- Page 11 4.3.3 Hold time of the setpoint temperature Hold time of the setpoint temperature Adjustment range: Adjustment range: ϑ 90°C 1 min bis 99.59 hrs Setting accuracy: Setting accuracy: 1 min hold 6h Indication accuracy: Indication accuracy: The bath switches off the heating after <10 hrs: 1 min the end of the selected hold time.
- Page 12 6 Monitoring the programme sequence Monitoring the programme sequence During the delayed switch-on the symbol ϑ 90°C fl ashes and the display alternates between °C residual time and actual temperature delay 6h hold 4h °C Bath does not heat up After the end of the delayed switch-on the ϑ...
- Page 13 7 Temperature Temperature monitor and protection devices monitor and protection devices 7.1 Mechanical temperature monitor: 7.1 Mechanical temperature monitor: temperature limiter temperature limiter All waterbaths are fi tted with a mechanical temperature limiter (TB) Protection Class 1 to DIN 12880. If the electronic control unit should fail during operation and the fi...
- Page 14 8 Use of the cover (special equipment) 8 Use of the cover (special equipment) Gable cover The gable cover (may be ordered as already mounted special equipment) should always be closed in order to prevent evaporation of thermostating liquid and to obtain optimal temperature distribution.
- Page 15 10 Cooling system (special equipment) Cooling system (special equipment) If the waterbath is fi tted with a cooling device water supply for quicker cooling of the bath liquid, the “water supply“ has to be connected by a hose f.ex. to a cold water supply line.
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Page 16: Supply Failure
Communication to power unit interrupted E - L In case of a malfunction contact an authorized service station for Memmert equipment or please inform the Memmert service department (see section 16). In case of queries always specify model and serial number (on the rating label). -
Page 17: Ec Declaration Of Conformity
15 CE Conformity of Declaration CE Conformity of Declaration EC Declaration of Conformity Manufacturer´s name and address: MEMMERT GmbH + Co. KG Äußere Rittersbacher Straße 38 D-91126 Schwabach Product: Waterbath Type: WNB... Sizes: 7 / 10 / 14 / 22 / 29 / 45... - Page 18 E-mail: sales@memmert.com Internet: www.memmert.com Customer service: Phone: 00 49 9122 / 925-143 or 00 49 9122 / 925-126 E-mail: service@memmert.com In case of queries always specify model and serial number (on the rating label). © by MEMMERT GmbH+Co.KG BASIC page 18...
- Page 19 17 Index address 18 heating 8 TB 13 alarm symbol 13 hinge bolts 15 technical data 4 ambient conditions 4 hold time of the setpoint temperature 11 temperature fl uctuation 5 ambient temperature 16 temperature limiter (TB) 13 autodiagnostic system 5, 16 temperature measurement 5 temperature monitor 13 indications 8...
- Page 20 Memmert GmbH + Co. KG | Postfach 1720 | D-91107 Schwabach | Tel. +49 (0) 9122 / 925 - 0 | Fax +49 (0) 9122 / 145 85 | E-Mail: sales@memmert.com | www.memmert.com 15.06.2018 Waterbath BASIC englisch D10329...
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