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Gefran products, described in this manual, are compliant to the European Directive 2004/108/CE.
They are tested according to the standard EN 61326-1 "Electrical equipment for measurement, control and laboratory use - EMC
requirements", Part 1 "general requirements and EN 61326-2-3 "Electrical equipment for measurement, control and laboratory use - EMC
requirements", Part 2-3: Particular requirements - Test configuration, operational conditions and performance criteria for transducers with
integrated or remote signal conditioning.
Electromagnetic Compatibility (EMC) requirements are classified in two types: Emission requirements, Immunity requirements
Emission requirements
For class B equipment the limits, the measuring methods and the provisions given in CISPR11, EN 61000-3-2 and EN 61000-3-3 apply.
Equipment classification and choice of respective limits shall be determined after taking into account the intended environment and
emission requirement in the areas of use
Immunity requirements
The immunity test requirements are given in table 1.
The tests shall be conducted in accordance with the basic standards. The tests shall be carried out one at time.
Table 1 - Immunity test requirements for equipment intended for use in industrial locations
Port
Phenomenon
Enclosure
Electrostatic discharge (ESD) EN 61000-4-2
EM field
Rated power frequency
magnetic field
Power supply DC
g)
Burst
Surge
Conducted RF
I/O signal/control
Burst
(including functional
Surge
earth lines)
Conducted RF
a)
Line to line
b)
Line to ground
c)
Only in the case of long-distance lines
d)
Only in the case of lines > 3 m
g)
DC connections between parts of equipment/system which are not connected to a d.c. distribution network are treated as I/O
signal/control ports
Performance criterion A
During testing, normal performance within the specification limits.
Example
If electronic equipment is required to work with high reliability, the EUT shall operate without any apparent degradation from the
manufacturer's specification.
Performance criterion B
During testing, temporary degradation, or loss of function or performance which is selfrecovering.
Example
During testing, an analogue function value may deviate. After the test, the deviation vanishes.
Performance criterion C
During testing, temporary degradation, or loss of function or performance which requires operator intervention or system reset occurs.
Example
In the case of an interruption in the mains longer than the specified buffer time, the power supply unit of the equipment is switched off.
The switch-on may be automatic or carried out by the operator.
Copy of the conformity declaration is available for download on the Gefran web site www.gefran.com
MAN_Electrical_Installation_for_Pressure_Probes_0709_ENG
6. Standard reference
Basic
Test value
standard
4 kV / 8 kV contact/air
EN 61000-4-3
10 V/m (80 MHz to 1 GHz)
3 V/m (1,4 GHz to 2 GHz)
1 V/m (2,0 GHz to 2,7 GHz)
EN 61000-4-8
30 A/m
EN 61000-4-4
2 kV (5/50 ns, 5 kHz)
EN 61000-4-5
1 kV
a)
/ 2 kV
b)
EN 61000-4-6
3 V (150 kHz to 80 MHz)
EN 61000-4-4
1 kV (5/50 ns, 5 kHz)
EN 61000-4-5
1 kV
b), c)
EN 61000-4-6
3 V (10 kHz to 80 MHz)
Performance
Performance
criteria
criteria
requested
applied
by Gefran
B
A
A
A
A
A (@ 400 A/m)
B
A
B
B
A
A (@ 10V)
B
A
d)
B
B
A
A (@ 10V)
9
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