YOKOGAWA FU20-FTS, Instruction Manual, Page: 10 / 32

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IM 12B06J03-05EN-P
When the sensor has been connected to non intrinsically safe equipment which
exceeds the restrictions regarding the sensor input circuits, the sensor is not
suitable anymore for intrinsically safe use.
Note 2: Ambient temperature:
-40 °C to +40 °C for temperature class T6,
-40 °C to +55 °C for temperature class T4 and T5,
-40 °C to +105 °C for temperature class T3.
Electrostatic charges of the sensor enclosure parts and label shall be avoided,
especially in the case that the process medium is non-conductive. Use a damp
cloth for cleaning the equipment. From the safety point of view the circuits shall
be assumed to be connected to earth.
* Certification is subject to change, due to new regulations or changes in the product itself.
When a certificate is updated, a new revision under the same certificate number is created
with a new issue number.
- ATEX:
DEKRA11ATEX0014 X, issue 1 (effective from 03-2011)
DEKRA11ATEX0014 X, issue 2 (effective from 02-2021)
- IECEx:
IECEx DEK 11.0064X, issue 0 (effective from 07-2011)
IECEx DEK 11.0064X, issue 1 (effective from 02-2021)
Label information:
All statutory required label information is written on metallized product label.
This includes MS-code, serial number and process operating specifications.
The intrinsic safety certification information of ATEX and IECEx is also written on the
product label. Example of a product label see figure 1.
Figure 1: Sensor product label
For other certification related information,
the product label is not big enough to
show all details. Therefore, the intrinsic
certification information for FM-United
States and FM-Canada an additional label
is provided. This label needs to be
attached to the sensor cable.
Label content of additional label, see
figure 2.
Figure 2: Product label FM-US and FM-
CSA
FU20
XX-XX-XXX
N3XA12345