Safety Instructions: Installation - Endress+Hauser Levelflex FMP50 Safety Instructions

XA00499F-F
Safety instructions:
Installation
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A
2
1
1
 2
A Zone 1
1 Potential equalization line
2 Electronics compartment Ex ia; Electronic insert
3 Power supply
4 Connection compartment Ex db
5 Tank; Zone 0, Zone 1
6 Potential equalization
• After aligning (rotating) the housing, retighten the fixing screw (see Operating Instructions).
• Install the device to exclude any mechanical damage or friction during the application.
Pay particular attention to flow conditions and tank fittings.
• In potentially explosive atmospheres:
– Do not disconnect the electrical connection of the power supply circuit when energized.
– Do not open the connection compartment cover.
• Only use certified cable entries suitable for the application. Observe national regulations and
standards. Accordingly, the connection terminal does not include any ignition sources.
• When operating the transmitter housing at an ambient temperature under –20 °C, use appropriate
cables and cable entries permitted for this application.
• When connecting through a conduit entry approved for this purpose, mount the associated sealing
unit directly at the housing.
• Seal unused entry glands with approved sealing plugs that correspond to the type of protection.
The plastic transport sealing plug does not meet this requirement and must therefore be replaced
during installation.
• Before operation:
– Screw in the cover all the way.
– Tighten the securing clamp on the cover.
• Continuous service temperature of the connecting cable: –40 °C to ≥ +85 °C; in accordance with the
range of service temperature taking into account additional influences of the process conditions
(T ), (T +20 K).
a,min a,max
Optional specification, ID Jx (Test, Certificate) = JN
Continuous service temperature of the connecting cable: –50 °C to ≥ +85 °C; in accordance with the
range of service temperature taking into account additional influences of the process conditions
(T ), (T +20 K).
a,min a,max
Basic specification, Position 3 (Power Supply, Output) = K
Connect the protective ground to the device.
Basic specification, Position 4 (Display, Operation) = N
Observe the requirements according to IEC/EN 60079-14 for conduit systems and the wiring- and
installation instructions of the suitable Safety Instructions (XA). In addition, observe national
regulations and standards for conduit systems.
Explosion protection "Flameproof enclosure Ex db"
Flameproof equipment with G threaded entry holes is not intended for new installations but only for
replacement of equipment in existing installations. Application of this equipment shall comply with
the local installation requirements.
Levelflex FMP50/51/52/53/54/55
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4
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Endress+Hauser
A0022630