22
4.1 Connecting cable
A shielded cable should be used. The shield should be laid on one side with the EE300Ex.
The cable must conform to the following specifications (requirements of EN60079-14,
EN60079-25) for ATEX:
•
Cable diameter 4 - 8mm
(0.15-0.31")
•
Maximum cross-section 1.5mm²
(0.02in²)
• Single stranded wire diameter: ≥ 0.1mm
(0.004")
• Test voltage wire-wire: ≥ 500V AC eff.
• Test voltage wire-shield (if a cable with shield is being used): ≥ 500V AC eff.
•
Cable inductivity, cable capacity and conductor resistance are to be evaluated in the
evidence of intrinsic safety
•
Flame-resistant acc. to IEC60332-1-2
Additional requirements if both channels (CH1, CH2) are connected in a common
cable:
• The test voltage wire-wire: must be ≥ 1000V AC eff.
• The radial thickness of the insulation must be ≥ 0.2mm
(0.008")
.
•
The conductor insulation must withstand 500V AC eff.
Cable ÖLFLEX® EB CY from manufacturer LAPP KABEL meets this requirement
on request.
4.
ELECTRICAL CONNECTIONS
It is essential that installation, electrical connection, commissioning, operation and maintenance in
explosion hazard areas are only carried out by trained specialist personnel authorised to do so by
the system operator.
Installation in accordance with NEC or CEC with consideration of the Control Drawing
M1_1309080
For installation in an explosion hazard area, it is essential to ensure that all relevant standards are
observed. For the installation, standard EN60079-14, EN60079-25 or IEC60079-14, IEC60079-25
is to be applied, and for repair and maintenance, the standards EN60079-17 or IEC60079-17 and
EN60079-19 or IEC60079-19 as well as the relevant national regulations should be applied.
Installation in the U.S. must be carried out in accordance with ANSI / ISA RP 12.6.01-2003 and
the National Electrical Code (NEC).
Installation in Canada must be carried out in accordance with the Canadian Electrical Code (CEC).
The EE300Ex is designed as a 2-wire current transmitter.
CH1 should always be connected
, CH2 can also be activated if required.
Both outputs are galvanically isolated.
Cable ends must be fitted with the appropriate wire-end sleeves. After the connection in the
terminal, an air gap of at least 2mm
(0.08")
must be left between the strands and a 6mm
(0.2")
air
gap between channels 1 and 2.
Changes to the probe cable length are only permitted to be carried out by the manufacturer
(transmitter will need to be re-calibrated).
Содержание EE300E Series
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