8 www.krohne.com
04/2012
ALTOSONIC V
INTRODUCTION
1
3 wire shielded wire twisted (or two pairs)
Power supply to the I/O-rack: 3 wire including PE for protective earthing.
The Flow Converter UFC-V cabling in hazardous area containing L, N and PE, according to
EN IEC 60079-14
Ex equipotential bonding conductor between UFC-V and UFS-V
4 mm2
I/O cabling to external equipment screened twisted pairs
Cable glands for the power supply and communication of the UFC-V
There are four M20X1,5 cable entrances closed with certified blind plugs, cable glands shall
be of a certified type guaranteeing EEx -d protection
1.4
Approvals
EMC, Electromagnetic Compatibility Directive
The ALTOSONIC V flowmeter system complies with the requirements of the harmonized
standards under the EMC directive 89/336/EEC.
Pressure Equipment Directive
The KROHNE organization complies with the requirements of Module H of the Pressure
Equipment Directive 97/23/EC (full quality assurance).
ATEX Directive 94/9/EC
Both the Flow Sensor and the Flow Converter are in compliance with the European Directive
94/9 EG (i.e. ATEX 100A). Please see the addition to the Operating and Installation Instructions
for details about use in hazardous areas.
1.5
Safety instructions
The hazardous area equipment (i.e. the UFS-V and UFC-V components) must be handled in
accordance with the addition to the Operating and Installation Instructions for use in hazardous
areas. For the non-hazardous area equipment (UFP-V and I/O rack) the following applies:
This product is designed for use in accordance with EN IEC 61010-1 for Installation Category 2
and Pollution Degree 2. Hazardous voltages are present within this product during normal
operation. The product is designed for Protection Class I and should never be operated without
protective earth. The product shall also never be operated with covers removed unless
equivalent protection of the operator and its environment from accidental contact with
hazardous internal voltages is provided. Always follow basic and local safety precautions when
using this product to reduce risk of injury from electrical shock, spread of fire or other
dangerous situations.
This instrument is intended for permanent connection to the mains. It is required (for example
for service) to mount an external switch or circuit breaker near the product for disconnection
from the mains. This must be easily reachable by the operator and marked as the disconnecting
device for this product. The switch or circuit breaker has to be suitable for the application and
shall also be in accordance with to local (safety) requirements and of the building installation
(IEC 60947-1/-3).
It is not allowed to use the protective conductor terminal for any other connection than the
protective earth conductor.
The IP grade is only warranted when using suitable cabling with the cable glands and covers
mounted as specified if applicable.
