Issue 2, Nov-98. Applies to software versions 1.3 & 1.4 -12- HA026270
S
ERVICE AND REPAIR
This controller has no user serviceable parts. Contact your nearest
Eurotherm Controls agent for repair.
Caution: Charged capacitors
Before removing the controller from its sleeve, switch off the supply and
wait two minutes to allow capacitors to discharge. Failure to observe this
precaution may damage the indicator or cause some discomfort to the user.
Electrostatic discharge precautions
When the controller is removed from its sleeve, it is vulnerable to damage
by electrostatic discharge from someone handling the controller. To avoid
this, before handling the unplugged controller discharge yourself to
ground.
Cleaning
Do not use water or water based products to clean labels or they will
become illegible. Isopropyl alcohol may be used to clean labels. A mild
soap solution may be used to clean other exterior surfaces of the product.
Safety Symbols
The following safety symbols are used on the controller:
Caution. Refer to the
accompanying documents
!
Personnel
Installation must be carried out by qualified personnel.
Enclosure of live parts
The controller must be installed in an enclosure to prevent hands or metal
tools touching parts that may be electrically live.
Caution: Live sensors
The logic input/output is electrically connected to the sensor input (e.g.
thermocouple). In some installations the temperature sensor may become
live. The controller is designed to operate under these conditions, but you
must ensure that this will not damage other equipment connected to the
logic input/output and that service personnel do not touch this connection
while it is live. With a live sensor, all cables, connectors and switches for
connecting the sensor and non-isolated inputs and outputs must be mains
rated.
Wiring
Wire the controller in accordance with the wiring data given in
these instructions. Take particular care not to connect AC
supplies to the low voltage sensor input or logic outputs. Only
use copper conductors for connections, (except thermocouple).
Ensure that the installation complies with local wiring
regulations
. In the USA use NEC Class 1 wiring methods.
Power Isolation
Include a power isolating switch or circuit breaker which disconnects all
current carrying conductors. The device should be mounted in close
proximity to the controller, within easy reach of the operator and marked
as the disconnecting device for the controller.
Voltage rating
The maximum continuous voltage applied between any connection and
ground must not exceed 264Vac. For the above reason the controller
should not be wired to a three phase supply with an non-grounded star
connection. Under fault conditions such a supply could rise above 264Vac
with respect to ground and the product would not be safe.
Over-temperature protection
When designing any control system it is essential to consider what will
happen if any part of the system should fail. In temperature control
applications the primary danger is that the heating will remain constantly
on. This could damage the product, the machinery being controlled, or
even cause a fire.
Reasons why the heating might remain constantly on include:
•
the temperature sensor becoming detached from the process
•
thermocouple wiring becoming short circuit;
•
the controller failing with its heating output constantly on
•
an external valve or contactor sticking in the heating condition
Where damage or injury is possible, we recommend fitting a separate over-
temperature protection unit, with an independent temperature sensor,
which will isolate the heating circuit.
Please note that the alarm relays within the controller will not give
protection under all failure conditions.
Conductive pollution
Electrically conductive pollution must be excluded from the cabinet in
which the indicator is mounted. For example, carbon
dust is a form of electrically conductive pollution. Where condensation is
likely, for example at low temperatures, include a thermostatically
controlled heater in the cabinet.
Installation requirements for EMC
•
For general guidance refer to Eurotherm Controls EMC Installation
Guide, HA025464.
•
It may be necessary to fit a filter across the relay output to suppress
conducted emissions. The filter requirements will depend on the type
of load. For typical applications we recommend Schaffner FN321 or
FN612.
Routing of wires
To minimise the pick-up of electrical noise, the sensor input wiring should
be routed away from high-current power cables. Where it is impractical to
do this, use shielded cables with the shield grounded at both ends.
INTERNATIONAL SALES AND SERVICE
EUROTHERM CONTROLS LTD
Faraday Close, Durrington,
Worthing, West Sussex BN13 3PL
Telephone
Sales: (01903) 695888
Technical: (01903) 695777
Service: (01903) 695444
Fax (01903) 695666
Countries not listed enquiries/orders
Eurotherm Controls Ltd
Export Dept,. Faraday Close,
Durrington,
Worthing, West Sussex, BN13 3PL
Telephone (01903) 268500
Fax (01903) 265982
AUSTRALIA Eurotherm Pty. Ltd.
Telephone Sydney (+61 2) 9477
7022
Fax (+61 2) 477 7756
AUSTRIA Eurotherm GmbH
Telephone Vienna (+43 1) 798 7601
Fax (+43 1) 798 7605
Telex 047 1132000 EIAUT A
BELGIUM Eurotherm B.V.
Telephone Antwerp (+32 3) 322
3870
Fax (+32 3) 321 7363
DENMARK Eurotherm A/S
Telephone Copenhagen (+45 31)
871622
Fax (+45 31) 872124
FRANCE
Eurotherm Automation SA
Telephone Lyon (+33 478) 664500
Fax (+33 478) 352490
GERMANY
Eurotherm Regler GmbH
Telephone Limburg (+49 6431) 2980
Fax (+49 6431) 298119
Also regional offices
HONG KONG Eurotherm Limited
Tel. Hong Kong (+852) 2873 3826
Fax (+852) 2870 0148
Telex 0802 69257 EIFEL HX
INDIA Eurotherm India Limited
Telephone Chennai (+9144)
4961129
Fax (+9144) 4961831
IRELAND
Eurotherm Ireland Limited
Telephone Naas (+353 45) 879937
Fax (+353 45) 875123
ITALY Eurotherm SpA
Telephone Como (+39 31) 975111
Fax (+39 31) 977512
Telex 380893 EUROTH I
JAPAN Eurotherm Japan Limited
Telephone Tokyo (+81 3) 33702951
Fax (+81 3) 33702960
KOREA Eurotherm Korea Limited
Telephone Seoul (+82 2) 5438507
Fax (+82 2) 545 9758
Telex EIKOR K23105
NETHERLANDS Eurotherm B.V.
Telephone Alphen a/d Ryn (+31
172) 411752
Fax (+31 172) 417260
NEW ZEALAND
Eurotherm Limited
Telephone Auckland (+64 9)
2635900
Fax: (+64 9) 2635901
NORWAY Eurotherm A/S
Telephone Oslo (+47 66) 803330
Fax (+47 66) 803331
SPAIN Eurotherm España SA
Telephone (+34 91) 6616001
Fax (+34 91) 6619093
SWEDEN Eurotherm AB
Telephone Malmo (+46 40) 384500
Fax (+46 40) 384545
SWITZERLAND
Eurotherm Produkte (Schweiz) AG
Telephone Zurich (+41 55) 4154400
Fax (+41 55) 4154415
UNITED KINGDOM
Eurotherm Controls Limited
Telephone Wo44 1903)
269888
Fax (+44 1903) 269666
U.S.A Eurotherm Controls Inc.
Telephone Reston (+1 703) 787
3405
Fax (+1 703) 787 3436