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Buchi B-740 Operation Manual

Buchi B-740 Operation Manual

Recirculating chiller

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Operation Manual
Recirculating Chiller
B�740
096691
en

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Summary of Contents for Buchi B-740

  • Page 1 Operation Manual Recirculating Chiller B�740 096691...
  • Page 3: Table Of Contents

    Taking out of operation Appendix Read through these operating instructions thoroughly before you use the BÜCHI Recirculating Chiller B-740. Keep these instructions in the immediate area of the apparatus so that they can be referred to at any time. Chapter 2 contains important safety tips.
  • Page 4 1 Scope of delivery BÜCHI Recirculating Chiller B-740 1 Scope of delivery Description Apparatus versions: Order no. Büchi Recirculating Chiller B-740 230 V Model 800 Watt 37740 Model 1400 Watt 37741 Model 2500 Watt 40300 Table 1: Scope of delivery...
  • Page 5: Safety

    BÜCHI Recirculating Chiller B-740 2 Safety 2 Safety The apparatus is constructed in accordance with state- of-the art technology and recognized technical safety regulations. Nevertheless risks and danger can arise from the appara- tus: • if the apparatus is not used according to instructions.
  • Page 6 These operating instructions must, as a component of the Recirculating Chiller B-740 be available at all times to the operating personnel at the place of use of the apparatus. The operator is responsible for the instruction of his or her personnel.
  • Page 7: Function

    Rotavapor R-220. The temperature range extends from -10°C to 20°C, alt- hough heating is not possible. The B-740 regulates the temperature to within +/- 1 K exactly. The desired value is simply entered with two keys (UP and DOWN) and can be easily read from the LCD display (desired and actual temperatures).
  • Page 8: Putting Into Operation

    (suf- ficient cooling). • Place the B-740 on a horizontally level, solid base • Connect out flow and return flow connections of the B-740 with the cooler of the rotary evaporator. Only use hoses which can withstand min.
  • Page 9: Operation

    BÜCHI Recirculating Chiller B-740 5 Operation 5 Operation The apparatus is not splash-proof. 5.1 Operatingelements Indicate set temperature Increase set temperature ∇ Reduce set temperature WARNING indicator in the case of malfunction COOLING Cooling indicator PUMP Indicator for circulating pump...
  • Page 10: Maintenance

    6 Maintenance BÜCHI Recirculating Chiller B-740 6 Maintenance All information which is directed at maintaining the Re- circulating Chiller in an operationally reliable condition is to observed. This also includes a periodic cleaning and inspection for possible damage. 6.1 Cleaning...
  • Page 11 6.3 Functional inspection After every operation, the following parameters are to be checked: • Filling level cooling liquid • Turning on the B-740 • Cooling on / Pump on • Control set point value 6.4 Malfunctions and their rectification Malfunction...
  • Page 12: Taking Out Of Operation

    7 Taking out of operation BÜCHI Recirculating Chiller B-740 7 Taking out of operation 7.1 Storage/shipping The cooling liquid is to be drained before storage or ship- ping. The apparatus is to be stored in the original packaging in a dry location. Shipping is also to be done in the original packaging.
  • Page 13: Appendix

    BÜCHI Recirculating Chiller B-740 8 Appendix 8 Appendix 8.1 Technical data B-740/8 B-740/14 B-740/25 Supply voltage 230 V, 50 Hz 230 V, 50/60 Hz 230 V, 50 Hz Power consumption max.750 W max.1200 W max.1800 W Display digital, resolution 0.5 K Temperature constancy ±1 K...
  • Page 14: Büchi Recirculating Chiller B

    9 Appendix BÜCHI Recirculating Chiller B-740 8.3 EC conformity declaration Konformitätserklärung Declaration of Confirmity Chiller B-741 Recirculating Chiller B-740 Dehumidifier B-296 - EN 61010-1 /2002-08 - EN 61010-2-010/ A1 - EN 61326 -1:2006 2006/95/EC 2004/108/EC 2006/42/EC Freital, 06.April 2009 ( Hans-Jörg Kupka, Owner)
  • Page 16 BÜCHI Labortechnik AG CH-9230 Flawil 1 / Switzerland T +41 71 394 63 63 F +41 71 394 65 65 www.buchi.com Quality in your hands...