ck nual LN2 Back-up System gEN) manual New Brunswick™ LN2 Back-up System Operating manual
Copyright Copyright © 2014 Eppendorf AG, Germany. No part of this publication may be reproduced without the prior permission of the copyright owner. The company reserves the right to change information in this document without notice. Updates to information in this document reflect our commitment to continuing product development and improvement. Trademarks Eppendorf® and the Eppendorf logo are registered trademarks of Eppendorf AG, Germany.
Table of contents New Brunswick LN2 Back-up System English (EN) Table of contents 1 Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Using this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Danger symbols and danger levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of contents New Brunswick LN2 Back-up System English (EN) 7.3 7.4 7.5 7.6 Testing door switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Testing back-up system operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Battery back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating instructions New Brunswick LN2 Back-up System English (EN) 1 1.1 Operating instructions Using this manual Carefully read this operating manual before using the device for the first time. Also observe the operating manual enclosed with the accessories. This operating manual should be considered part of the product and stored in a location that is easily accessible. Include this operating manual when forwarding the device to third parties.
Operating instructions New Brunswick LN2 Back-up System English (EN)
Safety New Brunswick LN2 Back-up System English (EN) 2 2.1 Safety Intended use The LN2 Back-up System is exclusively intended for indoor use and for and to maintain inside temperature of all Innova and Premium freezers in case of power failure. 2.2 User profile The device may only be operated by trained lab personnel who have carefully read this operating manual and are familiar with the device functions. 2.
Safety New Brunswick LN2 Back-up System English (EN) 2.4.2 Incorrect handling of accessories CAUTION! Lack of safety due to incorrect accessories or spare parts Accessories and spare parts that are not recommended by Eppendorf compromise the safety, function and precision of the device. Eppendorf cannot be held liable or accept any liability for damage resulting from the use of non-recommended accessories and spare parts. Only use accessories and original spare parts recommended by Eppendorf.
Product description New Brunswick LN2 Back-up System English (EN) 3 3.1 Product description Main illustration Abb. 3-1: Front view of the LN2 Back-up System 1 2 6 Fig.
Product description New Brunswick LN2 Back-up System English (EN) Abb. 3-2: Back view of the LN2 Back-up System 8 9 10 11 13 Fig.
Transport, storage and disposal New Brunswick LN2 Back-up System English (EN) 4 4.1 Transport, storage and disposal Transport NOTICE! Improper transportation Only transport product in its original packaging 4.2 Disposal In case the product is to be disposed of, the relevant legal regulations are to be observed.
Transport, storage and disposal New Brunswick LN2 Back-up System English (EN)
Introduction New Brunswick LN2 Back-up System English (EN) 5 5.1 Introduction Scope of manual This manual provides the user with the necessary information for the installation and operation of the LN2 Back-up System for New Brunswick Innova® and Premium ranges of Ultra Low Temperature Freezers. 5.
Introduction New Brunswick LN2 Back-up System English (EN) WARNING! Possible suffocation Keep in well ventilated area
Installation New Brunswick LN2 Back-up System English (EN) 6 6.1 Installation Before installation DANGER! Damage to device Empty freezer before installation of device. Open the door or lid of freezer and let reach ambient temperature. The back-up unit cannot be fitted to a freezer that is operating! Before installation, empty the freezer, switch it off, and disconnect it from the power outlet. Open the door or lid and let the whole freezer reach ambient temperature. 6.
Installation New Brunswick LN2 Back-up System English (EN) 6.4 Temperature sensor installation The temperature sensor is fitted to the freezer through the port fitted with a nylon plug. The hole is located on either (a) the top panel, in the rear right-hand corner on upright models (except for the Model U101: see note below), or (b) inside the compressor compartment on chest models. On the U101 Innova freezer, the temperature sensor port is located on the left-hand side wall. 6.4.
Installation New Brunswick LN2 Back-up System English (EN) 5. Remove freezer temperature sensor cover and position the two sensors side-by-side. 6. Fasten the two sensors with the plastic cable ties provided. 7. Replace the temperature sensor cover. 6.5 Installing the insulated transfer hose The insulated transfer hose consists of a 2 m (6.6 ft) hose that is surrounded by a tube of thermal insulation. 6.5.1 For upright freezers (including Model U101) 1.
Installation New Brunswick LN2 Back-up System English (EN) 6.6.2 Solenoid valve installation for chest freezers The port for the solenoid assembly is located inside the upper right-hand side of the compressor compartment. 1. Make sure the manifold-to-injector transfer line assembly passes through the port in the rear panel of the freezer and the solenoid valve cable to the control unit passes through the grommet on the upper rear panel. 2.
Installation New Brunswick LN2 Back-up System English (EN) 6.9 Door switch installation The magnetic door switch is composed of two separate items (magnet and magnet sensor) and is installed on (a) the top left-hand surface of the door on Upright models (top right-hand surface of the door on the model U101) or (b) the rear, right-hand surface of the lid on Chest models. For Innova Freezers and the Premium U700, use the two, small metal adapter plates supplied.
Installation New Brunswick LN2 Back-up System English (EN) CAUTION! Failure of system to operate correctly Ensure magnetic door switch is installed correctly 4. Using the screws provided, fasten the magnet sensor that has the electrical cable attached. 5. Close the lid or door to check that the two parts of the switch do not touch. There should be a gap of no more than 3 - 10 mm (0.12 - 0.4 inches). 6.
Operation New Brunswick LN2 Back-up System English (EN) 7 7.1 Operation Turning the control unit on 1. Plug the power cord into the mains. The green Power On LED illuminates. 2. Turn the System On switch to the on position. The control unit will beep. The alarm may sound if the control unit has not been switched on for some time. In this case, the alarm will continue to sound until the battery has been charged or replaced with a fully charged battery.
Operation New Brunswick LN2 Back-up System English (EN) 2. Check for frozen condensation around injector and freezer shelf. Frozen condensation indicates LN2 Back-up System is working. 3. Push Valve Test button. Gas should not be injected into freezer. Valve Open light should not illuminate. 7.4 Testing back-up system operation 1. Turn off LN2 Back-up System with the System On switch. 2. Turn on freezer. 3. Set freezer to to desired temperature and wait until temperature is reached. 4.
Operation New Brunswick LN2 Back-up System English (EN) When the back-up battery's voltage drops below 11.4 volts, the Battery Low LED will illuminate and an alarm will sound. 7.6 Alarm system monitoring socket WARNING! Hazardous voltages Hazardous voltages must not be connected to the remote alarm socket. Maximum rating is 24 volts, 1 amp. The LN2 Back-up System is designed with a fixed socket at the rear labelled Alarm Socket, and a plug for external monitoring purposes.
Operation New Brunswick LN2 Back-up System English (EN)
Maintenance New Brunswick LN2 Back-up System English (EN) 8 Maintenance CAUTION! Maintenance, service and repair work should be carried out only by qualified personnel who have been authorized by Eppendorf. Failure to use authorized service agents may invalidate the warranty. 8.1 Cleaning DANGER! Electric shock Switch the device off and pull the power plug out of the socket before beginning work.
Maintenance New Brunswick LN2 Back-up System English (EN) 8.3 Electrical connection maintenance All electrical cables should be checked every month. Failure to do so may result in failure of the device. If damage is found, do not attempt to repair by yourself. 1. Turn off LN2 Back-up System and unplug the power cord from the mains. 2. Inspect the power cord, door switch cable, solenoid cable, and temperature sensor cable for cuts or other damage. 3.
Maintenance New Brunswick LN2 Back-up System English (EN) 8.6 Maintenance forms Period Place the task Task Personnel Weekly Near device Clean with damp rag if necessary. User Weekly Near LN2 supply Weigh LN2 supplies to see if they are full. User Monthly Near device Check for cuts or User abrasions on all electrical wires. Inspect all hoses for cuts, chaffing, and squashing. Inspect hose connection to bottle and seal connection on the bottle. There should be no damage or corrosion.
Maintenance New Brunswick LN2 Back-up System English (EN) Safety checklist 1. Observe any warning or caution symbols or statements (see Warnings for intended use on p. 7). 2. Operating personnel should always wear the appropriate personal protective equipment (i.e. cold insulating gloves EN511, etc.). 3. As with any equipment that uses CO2/LN2 gas, there is a likelihood of oxygen depletion in the vicinity of the equipment.
Technical data New Brunswick LN2 Back-up System English (EN) 9 9.1 Technical data Performance The LN2 Back-up System is capable of maintaining a freezer maximum internal temperature of -80 °C in an ambient temperature of +32 °C. 9.2 Weight/dimensions 9.2.1 Device dimensions Height 86.5 mm (3.4 inch) Width 203 mm (8.0 inch) Depth 342 mm (13.5 inch) 9.2.2 Device weight Weight of LN2 Back-up System 9.3 5.6 kg (12.3 lb) Cable and transfer line lengths Power Cord 3 m (9.
Technical data New Brunswick LN2 Back-up System English (EN) 9.6 Ambient conditions 9.6.1 Device operating environment Altitude Up to 2000 m Minimum ambient temperature 5 °C Maximum ambient temperature 40 °C Maximum humidity at 31 °C 80 % Maximum humidity at 40 °C 50 % Pollution degree 2 9.7 Gas Consumption The consumption of gas is very difficult to specify because it is dependent on the operating conditions. Gas consumption is affected by several factors.
Technical data New Brunswick LN2 Back-up System English (EN) Gas consumption was measured at the indicated temperatures, in the center of the cabinet and in an ambient temperature of 23 ºC. Consumption in kg/hr (lbs/hr): at -60 °C at -70 °C at -80 °C U725 Innova 2.62 (5.76) 2.75 (6.05) 3.0 (6.6) U535 Innova 2.05 (4.51) 2.16 (4.74) 2.11 (4.63) U101 Innova 1.13 (2.49) 1.38 (3.03) 1.79 (3.93) U410 Premium 2.0 (4.4) 2.2 (4.84) 2.6 (5.72) U570 Premium 2.25 (4.95) 2.7 (5.94) 3.3 (7.
Technical data New Brunswick LN2 Back-up System English (EN) Description Part Number Alarm Plug, 3P-connector K0380-0451 Black Plastic Blanking Plug, (pack of 2) K0740-0330 Insulation Tube (2×25 mm) P0625-0300 Tie wrap fasteners (pack of 5) K0700-0140 Insulated Transfer Line, 2 M P0625-0250 LN2 Solenoid Valve Injector Assembly, Premium only P0625-1430 LN2 Solenoid Valve Injector Assembly, Innova only P0625-1431 LN2 Solenoid Valve Injector Tube, Premium only P0625-0530 LN2 Solenoid Val
Technical data New Brunswick LN2 Back-up System English (EN) 9.
Technical data New Brunswick LN2 Back-up System English (EN)
Declaration of conformity New Brunswick LN2 Back-up System English (EN) Declaration of conformity Declaration of Conformity The products named below fulfill the requirements of directives and standards listed. In the case of unauthorized modifications to the product or an unintended use this declaration becomes invalid.
Declaration of conformity New Brunswick LN2 Back-up System English (EN) WARNING! Any modification or changes made to this device, unless explicitly approved by Eppendorf, will invalidate the authorization of this device. Operation of an unauthorized device is prohibited under Section 302 of the Communications Act of 1934, as amended, and Subpart 1 of Part 2 of Chapter 47 of the Code of Federal Regulations.
Index New Brunswick LN2 Back-up System English (EN) Index 2 m (6.6 ft) Transfer line.................................. 17 Control unit...................................................... 21 Door switch ..................................................... 19 LN2 Dewars ..................................................... 18 Location ........................................................... 20 Selecting the location ...................................... 15 Solenoid valve..............................
Index New Brunswick LN2 Back-up System English (EN) Leaks ................................................................18 Solenoid valve ..................................................21 Testing the system ...........................................22 Trademarks..............................................................2 U User requirement ....................................................
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