Gammapilot FMG50
Endress+Hauser 19
• NPT1/2 thread, IP66/68 NEMA Type 4X/6P
• M12 plug, IP66/68 NEMA Type 4X/6P
• HAN7D plug, 90 deg. IP65 NEMA Type 4x
Connecting cables should be routed away from the housing from below to prevent moisture
from penetrating the connection compartment. Otherwise, a drip loop should be provided or a
weather protection cover should be used.
Please follow the enclosed installation instructions if a G1/2 entry is used.
Potential equalization
Before wiring, connect the potential matching line to the ground terminal.
A0038024
1 Ground terminal for connecting the potential matching line
L
CAUTION
‣
Please refer to the separate documentation on applications in hazardous areas for the safety
instructions
For optimum electromagnetic compatibility, the potential matching line should be as short as
possible and at least 2.5 mm
2
(14 AWG) in cross-section.
Overvoltage protection
(optional)
Product structure, feature 610 "Accessory mounted", option "NA"
• Overvoltage protection:
• Nominal functioning DC voltage: 600 V
• Nominal discharge current: 10 kA
• Surge current check î = 20 kA satisfied as per DIN EN 60079-14: 8/20 μs
• Arrester AC current check I = 10 A satisfied
NOTICE
Device could be destroyed!
‣
Devices with integrated overvoltage protection must be grounded.
Rated cross-section
Protective ground or grounding of the cable shield: rated cross-section > 1 mm
2
(17 AWG)
Rated cross-section of 0.5 mm
2
(AWG20) to 2.5 mm
2
(AWG13)
Fieldbus connectors
In the case of device versions with a fieldbus connector, the housing does not have to be opened to
establish the connection.
Pin assignment for connector M12-A
A0011175
Pin 1: Signal +
Pin 2: Not used
Pin 3: Signal –
Pin 4: Ground
Material: CuZn, contacts for plug-in jack and connector are gold-plated