C.2 CE Compliance Information
Brooks equipment bearing the CE mark has been successfully tested to the regulations of Electro Magnetic
Compatibility (EMC) directive 89/336/EEC, Low Voltage Directive 73/23/EEC, and ATEX directive
94/9/EC. This section contains a brief overview of the installation requirements. For complete
information, refer to Sections 2, 3, 4 and 5 Installing Instructions in this manual.
Table C-1 Compliance Requirements
Directive
Applies to
Requirement
Electro Magnetic
Compatibility
(EMC) Directive
89/336/EEC
All QmBS Sensors
• The sensor mounting plate must be grounded to earth.
• The transmitter must be grounded to earth.
• For the cable used between the sensor and the transmitter:
- Brooks supplies high-quality cable that meets the specifications for CE
certification.
- If you provide your own signal cable, you should use a cable which is
overall completely shielded with a 100% shield.
- If “Circular” type connectors are used, they should be shielded with a
metal shield. If applicable, metal cable glands providing cable shield
clamping must be used.
- The cable shield should be terminated to earth ground.
Low Voltage
Directive
73/23/EEC
All QTA transmitters
that use AC power
• A user-supplied switch must be installed in the power supply line in close
proximity to the transmitter.
ATEX Directive
94/9/EC
Transmitter models
QTA(1/3/4/6/7)**L****
• When cable entries are used, they shall conform to clause 7.2.6 of EN
50021.
• In an ambient temperature of less than –20 °C, suitable cable and cable
entries or conduit entries for this condition shall be used.
• A type of protection of at least IP 54 according to EN 60529 will be
achieved only when cable and conduit entries providing IP 54 according to
EN 60529 are used.
Transmitter models
QTA(6/7)**L****
• The cover of the terminal compartment containing terminals 1–6 may be
removed for short periods when the apparatus is in service to permit
checking or adjustment of energized energy-limited circuits.
Transmitter models
QTA(2/5)**L****
• When multiple transmitters are stacked on a single DIN rail and the
ambient temperature is above 45 °C, the units must be spaced at least 10
mm apart.
Sensor models
QmBS(2/3/4)
*******L*****
(all sensors)
• When the temperature under rated conditions is higher than 70 °C at the
cable or conduit entry point, or 80 °C at the branching point of the
conductors, the temperature rating of the cable used between the sensor
and the transmitter shall be higher than the actually measured temperature
values.
• Provisions shall be made to prevent the rated voltage being exceeded by
transient disturbances of more than 40%.
Instruction and Operation Manual
X-CM-QmBS-eng
Part Number 541B052AHG
June, 2008
QmBS Sensor / Transmitters
Appendix - C CE Certification
C-2
