E6 9 DTR.APC.APR.ALW.03(ENG)
Appendix Exd.IECEx
5.8. It is necessary to apply a shield cable or without shield cable with round cross-section in protection
from elastomer, not moisture absorbing, for example: YKSLY 2 * 1, YnTKSYekw 1 * 2 * 1, LIYCY 2 *
In case of need use cable with different structure, customer should co-ordinate this with transmitters’
manufacturer to choose intakes with cable diameter.
5.9. The general principles of connecting and the exploitation of transmitter in Exd realization should be
compatible with principles and relating standards for Exd casing devices how in p.2.1 Appendix
Exd.IECEx, in this including also: IEC 600079-14, IEC 60079-17.
5.10. During service must be made a check of the tight fastening of covers and the cable glands and
the fastening of the cable in the glands. The casing and supply line must be inspected for mechanical
damage, and the transmitter rating plate for legibility. Periodic checks should also be made of the
diaphragm, which should not carry signs of damage. During maintenance it is recommended that the
threads of the covers be lubricated with non-acid vaseline.
Because of the transmitter damage possibility, the ambient temperature should not be allowed
to become higher than 80ºC, even when there is no explosion risk.
It is not permitted to repair or otherwise interfere with the transmitter’s electrical circuits in any
way. Damage estimation and repair possibility may be assessed by the manufacturer or another
authorized party only.
In danger zone don’t unscrew transmitter covers and don’t change the display position or its
back lighting.
6. The electrical connection way of transmitter’s series: APC-2000ALW/XX,
APR-2000ALW/XX, APR-2200ALW/XX, APR-2000GALW/XX
and APR-2000YALW/XX in Exd version
According to the p.6 DTR.APC.APR.ALW.03(ENG) Appendix Exd.ATEX.
Special conditions for safe use:
- Permissible gap of joint marked in documentation by L4 is smaller than this was defined in norm
IEC 60079-1 and cannot be greater than passed value on Fig. 20.
- As the replacing elements, can be used only those specified in the descriptive documentation.
- In areas where there is a risk of dust explosion, transmitters in aluminium alloy casing covered with
lacquer and transmitters with plastic rating plates or with diaphragm seals covered by Teflon should
be installed in way to prevent electrostatic charging according to p. 7.4.
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