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Waterbath
WNB 7-45

Operating Instructions

BASIC

7 5. 0

BASIC

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Содержание Waterbath WNB 7-45

Страница 1: ...page 1 Waterbath WNB 7 45 Operating Instructions BASIC 7 5 0 BASIC ...

Страница 2: ... 10 4 3 2 Delayed switch on 10 4 3 3 Hold time of the setpoint temperature 11 5 Programming example of a programme sequence 11 6 Monitoring the programme sequence 12 7 Temperature monitor and protection devices 13 7 1 Mechanical temperature monitor temperature limiter 13 7 2 Low level protection 13 7 3 Monitor relay 13 8 Use of the cover special equipment 14 9 Level control special equipment 14 10...

Страница 3: ...ark on the product means Note Operating Instructions Warning bath hot when operating Observation of the Operating Instructions is necessary for faultless operation and for any possible claims under warranty If these Instructions are disregarded all claims under warranty guarantee and indemnification are excluded The right to technical modifications is reserved Dimensional details are not binding 1...

Страница 4: ...Housing height with gable cover G mm 337 337 347 405 343 401 Weight kg 11 14 16 17 24 26 Current consume A 5 2 5 2 7 8 8 7 10 4 12 2 Power W 1200 1200 1800 2000 2400 2800 Ambient conditions Ambient temperature 5ºC 40 C rh max 80 no condensation Overvoltage Category II Contamination degree 2 Setting temperature range 10 C to 95 C with activation of the boiling mode up to 100 C see section 4 3 1 Set...

Страница 5: ... on EMC electromagnetic compatibility This product is intended to operate on a supply network with a system impedance Zmax at the transfer point building connection of 0 292 Ohm max The user has to ensure that the product is only operated on an electrical supply network which meets these requirements If necessary details of the system impedance can be obtained from the local electricity supply aut...

Страница 6: ...00 temperature sensor Mat Ref 1 4571 Class A in 4 wire circuit Boiling mode for temperatures above 95 C Special equipment to be ordered separately as accessory flat cover with concentric ring sets gable cover to drain condensate cooling device various racks for test tubes bottles etc 3 Installation The unit must be placed on a level surface which cannot tilt The vent openings in the left and back ...

Страница 7: ...ore than 50 mm Waterbaths can be fitted with a level control system see section 9 Draining The tank can be drained through the drain valve The thermostating fluid must be cooled to room temperature before draining Drain the fluid either directly into an appropriate container or connect an appropriate hose to the drain valve NOTE Polluted fluids may not be drained directly into the public wastewate...

Страница 8: ...is coolest and sinks to the bottom The water is therefore close to the heating 2 This heats the water again so that it rises 3 The result is a continuous circulation and uniform temperature distribution 4 1 Controls and indications relatively largest heat loss since furthest away from the heated ribs minimum heat loss since very close to the heated ribs bath Insulation heating elements time symbol...

Страница 9: ...tly and can now be altered with the push turn control while holding down the SET key protection against unintentional alteration If the push turn control is rotated quickly the setpoint is altered in large steps with slow operation it is altered in single steps After the SET key has been released the newly set value is stored Further rotation of the push turn control selects the next parameter Rot...

Страница 10: ...hows C C C The setting boiling mode is not stored permanently After the bath is switched off and on again the controller shows again the previously selected setpoint C C 4 3 2 Delayed switch on The bath starts to heat up to the previously selected temperature only after the time of the switch on delay has elapsed Adjustment range 1 min bis 99 59 hrs Setting accuracy 1 min Indication accuracy 10 hr...

Страница 11: ...ay alternates between the actual temperature and the running time of the hold time As with switch on delay the residual time is shown with a negative sign and runs down If no hold time is required it can be de activated by the setting O F F C C C 5 Programming example of a programme sequence 1 Setpoint temperature setting Rotate the push turn control until the C symbol flashes With the SET key dep...

Страница 12: ...ected setpoint temperature Heating is indicated by the symbol C Bath holds setpoint temperature During the hold time the symbol flashes and the display alternates between the residual time and the actual temperature C C Heating is switched off After the hold time has elapsed the symbol goes dark the heating is switched off and the display alternates between the actual temperature and e n d C C 90 ...

Страница 13: ...ion after the TB cut out has been activated Switch off the bath and allow it to cool down Rectify the fault e g top up the liquid replace temperature probe and where appropriate contact customer service The bath is again ready for operation only after it has cooled down and after the fault has been rectified 7 3 Monitor relay In addition the bath is equipped with an electronic monitor relay If a f...

Страница 14: ... thermofluid 9 Level control special equipment 2 different filling levels can be maintained constant if the unit is fitted with a level control system When using water as thermostating liquid connect the feed pipe with tubing to the mains water supply The drain must be connected with tubing to an appropriate container or sink Make sure that the tubing cannot be clogged or bended and that it contin...

Страница 15: ...ir the outfit and function of the waterbath Before using any other method for cleaning or detoxicating than recommended by the manufacturer the user has to contact the manufacturer in order to make sure that this chosen method will not destroy the appliance The unit can be cleaned with commercial stainless steel cleaning agent It is important to ensure that no rusting objects come into contact wit...

Страница 16: ...ath ambient temperature the continuous temperature of the room in which the bath is set up Main switch ON no indication on the display Main fuse 15A or instrument fuse T80mA 250V on circuit board 55167 x has blown Controller faulty Electrical supply interrupted symbol not alight Ambient temperature too high Temperature in bath above the selected setpoint temperaturer symbol alight Temperature prot...

Страница 17: ... 0843 part 20 A1 1999 05 EN 61 326 1997 A1 1998 RFI suppression Class B DIN EN 61 000 3 11 VDE 0838 part 11 2001 04 EN 61 000 3 11 2000 The designated product is in conformity with the European Low Voltage Directive 73 23 EEC including amendments Council Directive on the approximation of the laws of the Member States relating to Electrical equipment for use within certain voltage limits Full compl...

Страница 18: ...mestic refuse For disposal please contact your dealer or the manufacturer Products which are infected infectious or contaminated with health endangering substances are excluded from return Please note also all further regulations in this context 16 Address and customer service MEMMERT GmbH Co KG PO Box 17 20 91107 Schwabach Germany Phone 00 49 9122 925 0 Fax 00 49 9122 14585 E mail sales memmert c...

Страница 19: ...ating large area 8 hinge bolts 15 hold time of the setpoint temperature 11 I indications 8 initial start up 7 installation 6 L level control system 7 14 limeresidues 15 liquid level 7 low level protection 13 M maintenance 15 Mat Ref 1 4301 5 material quality 5 monitoring the programme sequence 12 monitor relay 13 monitor unit 13 N nominal temperature 4 16 P parameter settings 9 polluted fluids 7 p...

Страница 20: ...page 20 27 06 2006 Waterbath BASIC englisch D10329 BASIC ...

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