Deltapilot M FMB50/51/52/53
20 Endress+Hauser
Supply voltage Note!
• When using the measuring device in hazardous areas, installation must comply with the corresponding
national standards and regulations and the Safety Instructions or Installation or Control Drawings.
• All explosion protection data are given in separate documentation which is available upon request. The
Ex documentation is supplied as standard with all devices approved for use in explosion hazardous areas.
→ ä 66 ff, "Safety Instructions" and "Installation/Control Drawings" sections.
4 to 20 mA HART
PROFIBUS PA
• Version for non-hazardous areas: 9 to 32 V DC
FOUNDATION Fieldbus
• Version for non-hazardous areas: 9 to 32 V DC
Start-up current HART 12 mA or 22 mA (selectable)
Current consumption • PROFIBUS PA: 11 mA ± 1 mA, switch-on current corresponds to IEC 61158-2, Clause 21
• FOUNDATION Fieldbus: 16 mA ± 1 mA, switch-on current corresponds to IEC 61158-2, Clause 21
Cable entry → ä 53 ff, feature 50 "Electrical connection".
Cable specification • Endress+Hauser recommends using twisted, shielded two-wire cables.
• Terminals for wire cross-sections 0.5 to 2.5 mm
2
(20 to 14 AWG)
• Cable outer diameter: 5 to 9 mm (0.2 to 0.35 in) depends on the used cable gland (→ ä 19)
Residual ripple No influence on 4 to 20 mA signal up to ± 5 % residual ripple within the permitted voltage range [according to
HART hardware specification HCF_SPEC-54 (DIN IEC 60381-1)]
Influence of power supply ≤ 0.0006 % of URL/1 V
Type of protection Supply voltage
• Intrinsically safe 11.5 ... 30 V DC
• Other types of protection
• Devices without certificate
11.5 ... 45 V DC (Versions with plug-in connection 35 V DC)
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