RB-5A,RB-12A RB-22A Refrigerated Baths OPERATOR’S MANUAL Issue 11 Date of issue: 3rd May 2005 Techne is a trademark © Techne, 2003
Refrigerated Baths USER’S MANUAL CONTENTS Refrigerated Baths User's Manual page SAFETY AND INSTALLATION English Français Deutsch 4 5 6 Español 7 INTRODUCTION Operator Safety Specification Siting Considerations Setting up the unit Cleaning your unit Packing 8 8 9 10 10 12 12 OPERATION Precautionary Measures Operating your unit Daily Mainenance Fault Finding Service 13 13 13 13 14 15 ADDITIONAL INFORMATION General Advice General Fault finding Accessories 16 16 16 16 PAGE 1
Refrigerated Baths USER’S MANUAL PAGE 2
Refrigerated Baths USER’S MANUAL NOTES PAGE 3
Refrigerated Baths USER’S MANUAL Introduction Please read all the information in this booklet before using the unit. Warning HIGH TEMPERATURES ARE DANGEROUS: they can cause serious burns to operators and ignite combustible material.
Refrigerated Baths USER’S MANUAL Introduction Veuillez lire attentivement toutes les instructions de ce document avant d’utiliser l’appareil. Avertissement DANGER DE TEMPERATURES ELEVEES : les opérateurs peuvent subir de graves brûlures et les matériaux combustibles risquent de prendre feu.
Refrigerated Baths USER’S MANUAL Einleitung Bitte lesen Sie diese Bedienungsanleitung komplett bevor Sie dieses Gerät benutzen. Warnung HOHE TEMPERATUREN SIND GEFÄHRLICH: sie können dem Bediener ernsthafte Verletzungen zufügen und brennbare Materialien können sich leicht entzünden. Techne hat bei der Konstruktion dieses Gerätes sehr darauf geachtet, daß der Bediener vor Gefahren geschützt ist.
Refrigerated Baths USER’S MANUAL Introducción Le rogamos lea cuidadosamente la información contenida en este folleto antes de manipular el aparato. Aviso LAS TEMPERATURAS ELEVADAS SON PELIGROSAS: pueden causarle graves quemaduras y provocar fuego en materiales combustibles.
Refrigerated Baths USER’S MANUAL INTRODUCTION Read the whole of this book before commencing work with the unit. The book applies to a range of Techne refrigerated baths. Hence paragraphs or sections without a heading or reference apply to all units while paragraphs or sections with headings apply to specific units. For other refrigerated units there is a separate booklet. The Techne fridge units are designed to cool liquids to temperatures around ambient and below by extracting heat continuously.
Refrigerated Baths USER’S MANUAL Specification The minimum temperatures quoted in the specification are achieved in an ambient of 20 oC with the appropriate liquid in the integral bath. However many things will affect the minimum obtainable temperature, such as: ambient temperature, insulation and length of circulation system, condition of the working liquid, heat input and so on.
Refrigerated Baths USER’S MANUAL Siting Considerations All the units are air cooled, air being pulled in through the front and expelled from the rear. The ventilation grilles should never be obstructed, therefore, as this will detract from the performance. Also the fridge units should never be situated in an enclosed space or near an extractor fan, this too will detract from the performance. MINIMUM 150 mm (6") MINIMUM 150 mm (6") Setting up the unit 1.
Refrigerated Baths USER’S MANUAL 2 Recommended liquids: When working at low temperatures always use a liquid suitable for the lowest temperature at which the unit is capable of achieving, see the list of recommended liquids below. When using a flow cooler up to 30oC in an enclosed circuit use the recommended liquid.
Refrigerated Baths USER’S MANUAL 9 Fill the bath to between the minimum and maximum levels which are 65mm and 20mm from the top of the bath. 10 Fridge baths are supplied with a lid and this should be used whenever possible.. Cleaning your unit Before cleaning your unit, disconnect from the power supply and allow to cool to ambient temperature. You can clean the case of the refrigerated unit with a cloth dipped in water or ethanol (methanol or formaldehyde can also be used).
Refrigerated Baths USER’S MANUAL OPERATION Precautionary Measures 1 Do not operate any of the fridge units without liquid in the circuit. Ensure that the evaporation coil is covered. 2 Freezing may occur if there is insufficient circulation or the incorrect liquid is used. While this will not harm the unit some time may pass before the unit can be used again. For this reason there should always be circulation in or around the coil either in the bath. Loss of performance will occur if freezing takes place.
Refrigerated Baths USER’S MANUAL Fault Finding 1 Check that the airways have not been restricted either by something placed in front of them or through build up of dust and fluff on the grilles, etc. 2 Loss of performance is most often caused by deterioration of the working liquid. As a first check always mix up a new batch of liquid and re-test the unit. NEVER top up the mix with water always use a quantity of the proper mix.
Refrigerated Baths USER’S MANUAL Service 1 Complete servicing and repair of Techne products is available at Techne see the contact information on pages 3 or 4. 2 A Service Manual is available and servicing may be undertaken by any competent refrigeration engineer.
Refrigerated Baths USER’S MANUAL ADDITIONAL INFORMATION Brief fault finding notes and lists of accessories are given in this section. NOTE THAT THIS EQUIPMENT SHOULD ONLY BE DISMANTLED BY PROPERLY TRAINED PERSONNEL. REMOVING THE OUTER COVERS OR BASE EXPOSES POTENTIALLY LETHAL MAINS VOLTAGES AND A FAN. THERE ARE NO USER SERVICEABLE PARTS WITHIN THE EQUIPMENT.
