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The equipment describedin this manual is manufacturedand distributed by TECQUIPMENT LIMITED Suppliers of technologicallaboratory equipment designedfor teaching. BoNSALL STREET,LONG EATON, NOTrINGHAM, NG10 2AN, ENGLAND. Tel: +44 (0)1159722611 : Fax: +44 (0)1159731520 E--Mail:General Enquiries: compuServe, mhs:sales@tecquip : Internet, [email protected] E-Mail: Parts ~ Service: CompuServe,mhs:service@tecquip: Internet, [email protected] InforD\ation is available on the Internet at: http:/ /www.tecquip.co.uk ~ e TecQuipment Limited No part of this publication may be reproduced or transmitted in any fonn or by any means, electronic or mechanical, including photocopy, recording or any infonnation storage and retrieval system without the express permission of TecQuipment Limited. Exception to this restriction is given to bona fide customers in educational or training establishments in the nonnal pursuit of their teaching duties. Whilst all due care has been taken to ensure that the contents of this manual are accurate and up to date, errors or omissions may occur from time to time. If any errors are discovered in this manual please inform TecQuipment Ltd. so the problem may be rectified. A Packing Contents List is supplied with the equipment and it is recommended that the contents of the package(s) are carefully checked against the list to ensure that no items are missing, damaged or discarded with the packing materials. In the event that any items are missing or damaged, contact your local TecQuipment soon as possible. agent or TecQuipment directly as TBCQUIPMENT - E67 - SPEED CONTROL UNIT Read and understand the following information before unpacking the apparatus, and keep it for future reference. Safety and Operation Information PRODUCT: E67 SPEEDCONTROL UNIT Symbols may be used in this manual to draw the operator's attention to particular information. Thesesymbols and their meaningsare as follows: Always comply with any statutory requirementsthat are in force with respectto the installation, operation and maintenanceof this apparatusin the country where it is to be used.Studentsusing this apparatusmust be adequatelysupervised. Foreseenuse of apparatus The E67 Speed Control Unit produces a variable DC output voltage which can be used to control the speedof permanentmagnet and shunt field motors. The voltage range can be adjusted to give 0-12 V or 0-24 V by changing the position of a selectorswitch mounted on the rear of the apparatus. The maximum output current is dependantupon the voltage range that is selected: TECQUIPMENT £67 SPEEDCONTROL UNIT At 12V, the maximum current is 10 A At 24V, the maximum current is 5 A The apparatus incorporates overload and short circuit protection. A replaceablefuse is mounted on the rear of the apparatus. Risks due to incorrect use Electric shock or damage to the apparatus if the electrical plug is not wired correctly, or the apparatusis operatedwith coversremoved. Installation and assembly instructions The 'Packing Contents Ust' that is supplied with this apparatus is a list of items that are provided with the apparatus to enablenormal use of it during the warranty period. If any item is missing or damaged,contactTecQuipment Limited or the importer. A wax-coating may have beenapplied to parts of this apparatusto prevent corrosion during transport. The wax can be removed by using paraffin or white spirit, applied with either a brush or a cloth. NOTE ~ Electrical connectionsmust be made as follows: The electrical supply provided for this apparatus must be connected to the apparatus through a switch or circuit-breaker so that the apparatus can be isolated from the supply when required. The apparatus must be connected to earth. To fit a plug suitable for local supply requirements, follow the instructions supplied with the plug using the following colour code for the supply cable: GREEN-AND- YELLOW: EARn-! (E or ~) BROWN: LIVE (L) BLUE: NEUTRAL (N) TBCQUIPMENT -- E67 SPEED CONTROL - UNIT Operating instructions The apparatus must be used within its operating limits (see Operating Conditions). Beforeoperating the E67SpeedControl Unit, ensurethat the electrical supply voltage matchesthe voltage stated on the serial nwnber label located on the rear of the apparatus. CAUTION ~ Ensurethat the ventilation holeslocated on the rear of the apparatusare not obstructed. Selectthe required output voltage range, either 0-12 V or 0-24 V using the 'OUTPUT VOLTAGE SELECT' switch located on the rear of the apparatus. Connectthe E67SpeedControl Unit to a suitable DC motor (e.g. the motor in the TecQuipment Limited TM127 Governors Apparatus) using the 4 mm leads supplied with the apparatus.Ensurethat the polarity of the connections is correct, i.e. the RED and BLACK terminals marked '+' and '-' on the E67 are connectedto the corresponding input terminals on the motor/apparatus to be controlled. Set the 'SPEED ADJUST' control to the 'OFF' position and connect the apparatus to an electrical supply. Turn the 'SPEED ADJUST' control clockwise until the 'UNIT 'ON" light turns on. CAUTION ~- \7 Ensure that the cooling fan is operating by checking that air is flowing through the ventilation holes. Turning the 'SPEEDADJUST' control more clockwisewill increasethe speed of the motor. Slowly adjust the 'SPEED ADJUST' control to obtain the motor speedthat is required. TECQUIPMENT E67 SPEEDCONTROL UNIT Maintenance and inspection Electricalmaintenancemust only be carried out by a competentperson. Periodically inspect the apparatus to ensure that there is no visible damage. Pay particular attention to plugs, sockets,switches, indicators, fuse holders and cables. If the apparatus appearsto function incorrectly, contactTec.QuipmentLtd. or the importer for advice. To replacea fuse: 1. Switch off the apparatusand disconnectit from the electrical supply. 2. Open the appropriate fuse holder using a flat bladed screwdriver. 3. Removethe fuse and replaceit with the exacttype specified (seebelow). 4. Replace the fuse holder and reconnect the apparatus to the electrical supply. 5. Switch on the electrical supply and ensure that the apparatus operates correctly. 6. If the fuse fails again contactTecQuipmentLtd. or the importer for advice. Handling instructions Net weight: 19.5kg. WARNING 4fi\ !1 Ensurethat correctproceduresfor handling the above weights are used when moving this apparatus. TECQUIPMENT- E67 SPEED -- CONTROL UNIT Operating Conditions E67 PRODUcr -25 °C - +55 °C (when packaged for Storagetemperaturerange transpOrtation) -Safeoperatin~ temoeraturerane;e Safe operating relative humidity ran~e Opera~v. envir~nment Supply voltage (nominal) ! Current (maximwn) ~1 I I Frequency -- Supply type - - +5 OC- +40 °C 30 % - 95 % (non-condensing) Laboratory environment 230V ~ 115V lA 50Hz/60Hz TNandTr (see m~ 364) ~ 2A 50Hz/60Hz TNandli' (~ IEC 3§4) Ensurethat the voltage on the serial number label attachedto the apparatusis the sameas the local electricalsupply voltage. Noise Level The measuredsound pressurelevel of this apparatusis lessthan 70 dB(A) Spare Parts Refer to the PackingContentsList for any consumablesthat are supplied with the apparatusto cover the warranty period. ContactTelQuipment Ltd. or the importer for any other spareparts that may be required.