Download Operational Manual

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.