KROHNE BM 702 EN - Manual (Page 22)

22 Installation and operating instructions BM 702 (06/04)
Operating temperature at flange LP flange system: -20°C (-4°F) to +130°C (302°F)
(see also chapter 8) V96 flange system:
Basic version: -20°C (-4°F) to +130°C (266°F)
Special version: min. -60°C (-76°F)
High temperature version, FFKM:
max. +250°C (482°F)
Kalrez 2035: max. +210°C (410°F)
FPM (Viton) or FEP-coated: max. +200°C (392°F)
PTFE-Wave-Stick: -20°C (-4°F) to +150°C (302°F),
pressure dependent
PP-Wave-Stick: -20°C (-4°F)to +100°C (212°F)
Product temperature Unrestricted, provided ambient temperature and flange
temperature are within the specified limits
Ambient temperature Signal converter (T
amb
): -20°C (-4°F) to +55°C (131°F)
Microwaves
Measuring principle FMCW Radar
Frequency range X-Band 8.5 - 9.9 GHz
Antenna radiation angle Type 3: ± 8° Type 4: ± 6° Wave-Stick: ± 9°
Ex-i current output HART® (passive)
Current 4 - 20 mA; without or with error message 3.6 mA
or 22 mA or 3.8-20.5 mA according to NAMUR NE43
Firmware version 7.12 and higher
Accuracy and linearity 0.15 %; TC=100 ppm/K
clamp voltage > 17V (I = 4 mA); > 13V (I = 20 mA)
Digital communication HART®
Ambient conditions
Environment class Locations exposed direct to open-air climate,
D1 Severity in conformity with EN 60654-1
Protection category (converter) IP66 / IP67 (equivalent to NEMA 4 and 4X)
Electrical connection
Cable entries:
1 x M 20×1.5
(delivered with 1 cable gland M 20 mm or
QUICKON
® 2-pole cutter clamp)
Terminals: Cable cross-section 0.5-1.5 mm² (AWG 20-16)
U-clamp terminals (for PA and FE) cable cross-section max. 4 mm² (AWG 12)