General Warnings; Special Conditions; Installation Instructions - Endress+Hauser Proline Promass 40 Bedienungs- Und Sicherheitshinweise

0
ATEX II2GD; IECEx Zone 1, Zone 21

General warnings

Special conditions

Installation instructions

16
• Compliance with national regulations relating to the installation, connection to the electricity supply,
commissioning and maintenance of devices in potentially explosive atmospheres is mandatory, if such
regulations exist (e.g. EN/IEC 60079-14).
• Installation, connection to the electricity supply, commissioning and maintenance of the devices must be
carried out by qualified specialists trained to work on Ex-rated devices.
• Compliance with all of the technical data of the device (see nameplate) is mandatory.
• Open the device only when it is de-energized (and after a delay of at least 10 minutes following shutdown
of the power supply) or in an area free of explosive atmospheres.
• It is not permissible to connect the service adapter whilst the atmosphere is considered to be explosive.
• Opening the transmitter housing and the connection housing of the remote version is only permitted for a
brief time. During this time, ensure that no dust or moisture enters the housing.
• To guarantee resistance to dust, the transmitter housing, the connection housing of the remote version and
the cable entries must be tightly sealed.
• Use of the devices is restricted to mediums against which the process-wetted materials are adequately
resistant.
• The suitability of the device in the event of simultaneous occurrence of gas-air and dust-air mixtures
requires an additional assessment.
The device must be integrated into the potential equalization system. Potential must be equalized along
the intrinsically safe sensor circuits. Further information is provided in the "Potential equalization" section
on Page 20.
• For terminals No. 20 to No. 27 of the transmitter, only devices with ratings U
are allowed to be connected (does not apply to intrinsically safe circuits).
• The measuring device must only be used in the permitted temperature class.
The values of the individual temperature classes can be found in the temperature tables on Page 20.
For Zone 21: The surface temperature of the measuring device must not exceed
temperature of a dust cloud. The maximum surface temperature must maintain a safe distance of 75 °C
to the smolder temperature of a dust layer of 5 mm.
Example: Operation in temperature class T4 (135 °C) is, therefore, suitable for dust with an ignition
temperature of 202.5 °C (1.5 × 135 °C or 135 °C =
210 °C (135 °C + 75 °C).
• The following applies when connecting the electronics housing in Ex d:
Only separately certified cable and pipe entries (Ex d IIC) must be used, which are suitable for an operating
temperature of up to 80 °C and for an ingress protection of IP 67. When using pipe entries, the associated
sealing equipment must be fitted directly at the housing.
• The following applies when connecting the electronics housing in Ex e:
Only separately certified cable and pipe entries, drain plugs (Ex e II) must be used, which are suitable for
an operating temperature of up to 80 °C and for an ingress protection of IP 67. The cables must be installed
such that they are fixed in place. Adequate strain relief must be ensured.
• Suitable cables and suitable, certified cable glands, cable entries and drain plugs must be used for measuring
devices operated at temperatures below –20 °C.
• The cable entries and openings not used must be sealed tight with suitable components.
• Turning the local display: the screw cap has to be removed before the local display can be turned, and this
must be done with the device de-energized (and after a delay of at least 10 minutes following shutdown of
the power supply).
• If Category "ia" intrinsically safe circuits of the measuring device are connected to certified intrinsically safe
Category "ib" circuits with explosion group IIC or IIB ratings, the type of protection changes to Ex ib IIC or
Ex ib IIB, as applicable. Intrinsically safe "ib" circuits are suitable for areas which require Category 2
equipment.
• If the active intrinsically safe communication circuits (input/output option S, T; terminals 26/27 resp.
24/25) are fed into areas that require 1D or 2D apparatus, the connected apparatus must be tested and
certified accordingly.
• In Zone 0, potentially explosive vapor/air mixtures may only occur under atmospheric conditions. If no
potentially explosive mixtures are present, or if additional protective measures have been taken according
to EN 1127-1, the devices may be operated under other atmospheric conditions in accordance with the
manufacturer's specifications.
≤ 260 V and I
m
2
/
3
2
/ of 202.5 °C) and a smolder temperature of
3
Proline Promass 40
≤ 500 mA
m
of the ignition
Endress+Hauser