Non-Sparking; Potential Equalization - Endress+Hauser Micropilot FMR50 Sicherheitshinweise

Micropilot FMR50/51/52/53/54/56/57
Endress+Hauser

Non-sparking

Ex nA
Basic specification, Position 1, 2 (Approval) = BG, IG
In potentially explosive atmospheres:
• Do not disconnect electrical connections when energized.
• Do not connect the service tool (e.g. FXA291).
Basic specification, Position 5 (Housing) = A
The housing is not approved for Ex nA explosion protection.
Cable specification
Without Optional specification, ID Nx, Ox (Accessory Mounted) = NA
(Overvoltage protection Type OVP20)
Basic specification, Cross section connecting wire
Position 3
(Power Supply, Output)
A, B, C 0.5 to 2.5 mm
With Optional specification, ID Nx, Ox (Accessory Mounted) = NA
(Overvoltage protection Type OVP20)
Basic specification, Cross section
Position 3 connecting wire
(Power Supply, Output)
A, B, C 0.2 to 2.5 mm

Potential equalization

• Integrate the device into the local potential equalization.
• Grounding the screen, see the following figure.
2
Tightening torque
of terminal screw
2 0.35 to 0.4 Nm
XA00687F-E
Stripped insulation
10 mm
Stripped insulation
5 mm
29