Endress+Hauser Levelflex FMP54 - Safety Instructions: Installation

XA00639F-A Levelflex FMP51/52/53/54/55/56/57
Endress+Hauser 7
Safety instructions:
Installation
FMP5x_02
å 1
A Zone 1, Zone 21
1 Tank; Zone 0/1 or Zone 20/21
2 Electronics compartment Ex ia; Electronic insert
3 Connection compartment Ex d
4 Power supply
5 Potential equalization line
6 Potential equalization
• In the case of process connections made of polymeric material or with polymeric coatings, avoid electrostatic
charging of the plastic surfaces.
• After aligning (rotating) the housing, retighten the fixing screw (→ Operating Instructions).
• When mounting the device:
– Exclude any mechanical damage or friction during the application.
– Pay particular attention to flow conditions and tank fittings.
• Continuous service temperature of the connecting cable: –40 to ≥ +85 °C; in accordance with the range of
service temperature taking into account additional influences of the process conditions
(T
a,min
and T
a,max
+20 K).
• In the event of additional or alternative special varnishing on the housing or other metal parts:
– Observe the danger of electrostatic charging and discharge.
– Do not rub surfaces with a dry cloth.
• In potentially explosive atmospheres:
– Do not open 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 selection criteria as per GB50257. 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.
• Only use certified cable entries or sealing plugs.
The metal sealing plugs supplied meet this requirement.
• 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.
Basic specification, Position 3 (Power Supply; Output) = K
• Connect the protective ground to the device.
Intrinsic safety
• The device can be connected to the Endress+Hauser FXA291 service tool: refer to the Operating
Instructions.
A
–
+
1
2
3
5
5
6
4