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On the dial the manufacturer, measuring unit, accuracy class, note Silicone-free, note Oxygen-Service and the applied
standard are visible.
The device may have other labels and safety marks indicating special conditions of use:
Note on calibration
Note on the use of the manual, Note on the use of the vent plug.
The operator must check the label, which is important for the use in potentially explosive atmospheres, at regular
intervals to ensure that it remains legible.
The outer packaging is labeled with the type designation, order number, item number, measuring range and
manufacturer's data.
2.6 Safety equipment
This unit is equipped with a blow-out rear cover (type T6500-KF) or blow-out disc (type T5500-KF). For a description,
see Chapter 6.3.4. The window is made of laminated safety glass, no other material options are permitted here.
2.7 Environmental protection
This device may optionally contain filling liquid (e.g. glycerin or silicone oil). The provisions of the Regulation on
Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) 2006/1907/EC must be observed, the
corresponding safety data sheets of the manufacturers of the chemicals, are available for download on our website. At
the end of the product life cycle we recommend to recycle the devices, as they are mostly made of stainless steel.
Instructions for disassembly, material separation and disposal can be found in chapters 11.1 and 11.2.
3 Use in potentially explosive atmospheres according to Directive
2014/34/EU (ATEX)
3.1 Range of use
Potentially explosive atmospheres Zone 1 and 2, as well as 21 and 22, hazard due to gases and dry dusts.
The permissible environment has the usual oxygen content (21%), ambient pressure 80 kPa (0.8 bar) to 110 kPa (1.1
bar).
The requirements of the applicable standards EN ISO 80079-36:2016, EN ISO 80079-37:2016 and EN 1127-1:2019
were considered by an ignition hazard assessment. The applicable requirements of these standards have been met.
For the European Union the documentation has been filed with TÜV-Nord-Cert NB 0044 (see Declaration of
Conformity).
Ambient temperatures:
Execution Min. / Max. permissible ambient temperature
Dry finish -20°C to +60°C
PLUS!™ Performance -20°C to +60°C
Liquid filled devices -20°C to +60°C
The temperature influence on the accuracy in the case of a deviation from the reference temperature 20°C according
to DIN EN 837-1 (chap. 9.1) is max. ± 0.4 % / 10 K of the full scale value.
To avoid additional influences on the device, they must not be exposed to direct sunlight during operation.
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