Endress+Hauser CYK10 Betriebsanleitung Seite 24

Basic safety instructions
2.5 Product safety
2.5.1 State of the art
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
European standards have been observed.
2.5.2 Electrical equipment in hazardous areas
IECEx and ATEX
The Memosens inductive sensor cable connection system, consisting of:
• IECEx-/ ATEX-approved sensors
• Measuring cable CYK10-G**a, a = 1, 2
• Measuring cable CYK10-I**a, a = 1, 2
is approved for measuring applications in explosive atmospheres in accordance with
• IECEx design approval BVS 11.0052 X
• EC design approval BVS 04 ATEX E 121 X with amendments
The corresponding IECEx certificate and the EC Certificate of Conformity for ATEX are an
integral part of these Operating Instructions.
• The sensors and cables must not be operated under electrostatically critical process
conditions. Avoid strong steam or dust currents that act directly on the connection system.
• The Memosens measuring cable CYK10 and its plug-in head must be protected against
electrostatic charge if they pass through Ex zone 0.
• Hazardous area versions of Memosens cables have an orange/red ring.
• The maximum permitted cable length is 100 m.
• Compliance with the regulations for electrical installations in hazardous areas (EN/IEC
60079-14) is mandatory when using devices and sensors.
Pay attention to the ex-related safety instructions of the transmitter and sensors when
cabling.
IECEx
The approved digital sensors with Memosens technology may be connected with the following
IECEx-certified measuring cables
• CYK10
• or a Memosens measuring cable that is identical both in terms of design, device technology
and function
only to an IECEx-approved intrinsically safe sensor output circuit of the Liquiline M CM42
transmitter or alternatively to an IECEx-certified intrinsically safe Memosens sensor output
that complies with the following maximum values. In particular, the effective inner inductance
and the capacitance of the approved, intrinsically safe sensor output may not exceed the
values below:
1)
1. Entity Parameters
U = 5.1 V
0
I = 130 mA
0
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1)
2. Entity Parameters
U = 5.04 V
0
I = 80 mA
0
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